diff --git a/Documentation~/en/api.md b/Documentation~/en/api.md
index 4b9da63d..6b971eb0 100644
--- a/Documentation~/en/api.md
+++ b/Documentation~/en/api.md
@@ -835,6 +835,7 @@ Bar chart shows different data through the height of a bar, which is used in rec
 |ResetChartStatus()|v3.10.0|public void ResetChartStatus()<br/>reset chart status. When some parameters are set, due to the animation effect, the chart status may not be correct. |
 |ResetDataIndex()||public bool ResetDataIndex(int serieIndex)<br/>重置serie的数据项索引。避免数据项索引异常。 |
 |SetBasePainterMaterial()||public void SetBasePainterMaterial(Material material)<br/>设置Base Painter的材质球 |
+|SetInsertDataToHead()|v3.11.0|public void SetInsertDataToHead(bool insertDataToHead)<br/>set insert data to head. |
 |SetMaxCache()||public void SetMaxCache(int maxCache)<br/>设置可缓存的最大数据量。当数据量超过该值时，会自动删除第一个值再加入最新值。 |
 |SetPainterActive()||public void SetPainterActive(int index, bool flag)|
 |SetSerieActive()||public void SetSerieActive(int serieIndex, bool active)<br/>Whether to show serie. |
@@ -3093,6 +3094,7 @@ Tooltip component.
 
 |public method|since|description|
 |--|--|--|
+|onClickIndex||public System.Action&lt;int&gt; onClickIndex<br/>the callback of tooltip click index. |
 |AddSerieDataIndex()||public void AddSerieDataIndex(int serieIndex, int dataIndex)|
 |ClearComponentDirty()||public override void ClearComponentDirty()|
 |ClearData()||public override void ClearData()|
diff --git a/Documentation~/en/configuration.md b/Documentation~/en/configuration.md
index ecdbbd29..3d34f3f9 100644
--- a/Documentation~/en/configuration.md
+++ b/Documentation~/en/configuration.md
@@ -2302,6 +2302,7 @@ Tooltip component.
 |show|true||Whether to show the tooltip component.
 |type|||Indicator type.<br/>`Tooltip.Type`:<br/>- `Line`: line indicator.<br/>- `Shadow`: shadow crosshair indicator.<br/>- `None`: no indicator displayed.<br/>- `Corss`: crosshair indicator, which is actually the shortcut of enable two axisPointers of two orthometric axes.<br/>- `Auto`: Auto select indicator according to serie type.<br/>|
 |trigger|||Type of triggering.<br/>`Tooltip.Trigger`:<br/>- `Item`: Triggered by data item, which is mainly used for charts that don't have a category axis like scatter charts or pie charts.<br/>- `Axis`: Triggered by axes, which is mainly used for charts that have category axes, like bar charts or line charts.<br/>- `None`: Trigger nothing.<br/>- `Auto`: Auto select trigger according to serie type.<br/>|
+|triggerOn||v3.11.0|Condition of trigger tooltip.<br/>`Tooltip.TriggerOn`:<br/>- `MouseMove`: Trigger when mouse move.<br/>- `Click`: Trigger when mouse click.<br/>|
 |position||v3.3.0|Type of position.<br/>`Tooltip.Position`:<br/>- `Auto`: Auto. The mobile platform is displayed at the top, and the non-mobile platform follows the mouse position.<br/>- `Custom`: Custom. Fully customize display position (x,y).<br/>- `FixedX`: Just fix the coordinate X. Y follows the mouse position.<br/>- `FixedY`: <br/>|
 |itemFormatter|||a string template formatter for a single Serie or data item content. Support for wrapping lines with \n. Template variables are {.}, {a}, {b}, {c}, {d}.<br/> {.} is the dot of the corresponding color of a Serie that is currently indicated or whose index is 0.<br/> {a} is the series name of the serie that is currently indicated or whose index is 0.<br/> {b} is the name of the data item serieData that is currently indicated or whose index is 0, or a category value (such as the X-axis of a line chart).<br/> {c} is the value of a Y-dimension (dimesion is 1) from a Serie that is currently indicated or whose index is 0.<br/> {d} is the percentage value of Y-dimensions (dimesion is 1) from serie that is currently indicated or whose index is 0, with no % sign.<br/> {e} is the name of the data item serieData that is currently indicated or whose index is 0.<br/> {f} is sum of data.<br/> {y} is category value of y axis.<br/> {.1} represents a dot from serie corresponding color that specifies index as 1.<br/> 1 in {a1}, {b1}, {c1} represents a serie that specifies an index of 1.<br/> {c1:2} represents the third data from serie's current indication data item indexed to 1 (a data item has multiple data, index 2 represents the third data).<br/> {c1:2-2} represents the third data item from serie's third data item indexed to 1 (i.e., which data item must be specified to specify).<br/> {d1:2: F2} indicates that a formatted string with a value specified separately is F2 (numericFormatter is used when numericFormatter is not specified).<br/> {d:0.##} indicates that a formatted string with a value specified separately is 0.##   (used for percentage, reserved 2 valid digits while avoiding the situation similar to "100.00%" when using f2 ).<br/> Example: "{a}, {c}", "{a1}, {c1: f1}", "{a1}, {c1:0: f1}", "{a1} : {c1:1-1: f1}"<br/>
 |titleFormatter|||String template formatter for tooltip title content. \n line wrapping is supported. The placeholder {i} can be set separately to indicate that title is ignored and not displayed. Template variables are {.}, {a}, {b}, {c}, {d}, {e}, {f}, and {g}. <br /> {.} is the dot of the corresponding color of serie currently indicated or index 0. <br /> {a} is the series name name of serie currently indicated or index 0. <br /> {b} is the name of the serie data item serieData currently indicated or index 0, or the category value (such as the X-axis of a line chart). <br /> {c} is the value of the serie y-dimension (dimesion is 1) currently indicated or index is 0. <br /> {d} is the serie y-dimensional (dimesion 1) percentage value of the currently indicated or index 0, note without the % sign. <br /> {e} is the name of the serie data item serieData currently indicated or whose index is 0. <br /> {h} is the hexadecimal color value of serieData for the serie data item currently indicated or index 0. <br /> {f} is the sum of data. <br /> {g} indicates the total number of data. <br /> {y} is category value of y axis. <br /> {.1} represents a dot of the corresponding color with serie specified as index 1. <br /> The 1 in {a1}, {b1}, {c1} represents serie where index is specified as 1. <br /> {c1:2} represents the third data of the current indicator data item in serie with index 1 (one data item has multiple data, index 2 represents the third data). <br /> {c1:2-2} represents the third data of serie third data item with index 1 (that is, the number of data items must be specified when specifying the number of data items). <br /> {d1:2:f2} indicates that a format string with a single value is f2 (numericFormatter is used if no value is specified). <br /> {d:0.##} indicates that the format string with a value specified alone is 0.## # (for percentages, preserving a 2-digit significant number while avoiding the "100.00%" situation with f2). <br /> example: "{a}, {c}", "{a1}, {c1: f1}", "{a1}, {c1:0: f1}", "{a1}, {c1:1-1: f1}"
diff --git a/Documentation~/zh/api.md b/Documentation~/zh/api.md
index 910ab3d5..8955a3ac 100644
--- a/Documentation~/zh/api.md
+++ b/Documentation~/zh/api.md
@@ -835,6 +835,7 @@ slug: /api
 |ResetChartStatus()|v3.10.0|public void ResetChartStatus()<br/>重置图表状态。当设置某些参数后，由于动画影响，可能导致图表状态不正确，此时可以调用该接口重置图表状态。 |
 |ResetDataIndex()||public bool ResetDataIndex(int serieIndex)<br/>重置serie的数据项索引。避免数据项索引异常。 |
 |SetBasePainterMaterial()||public void SetBasePainterMaterial(Material material)<br/>设置Base Painter的材质球 |
+|SetInsertDataToHead()|v3.11.0|public void SetInsertDataToHead(bool insertDataToHead)<br/>设置数据插入到头部。 |
 |SetMaxCache()||public void SetMaxCache(int maxCache)<br/>设置可缓存的最大数据量。当数据量超过该值时，会自动删除第一个值再加入最新值。 |
 |SetPainterActive()||public void SetPainterActive(int index, bool flag)|
 |SetSerieActive()||public void SetSerieActive(int serieIndex, bool active)<br/>设置指定系列是否显示。 |
@@ -3093,6 +3094,7 @@ Serie的状态样式。Serie的状态有正常，高亮，淡出，选中四种
 
 |API|版本|描述|
 |--|--|--|
+|onClickIndex||public System.Action&lt;int&gt; onClickIndex<br/>Tooltip为Click触发时，点击的X轴索引的回调。 |
 |AddSerieDataIndex()||public void AddSerieDataIndex(int serieIndex, int dataIndex)|
 |ClearComponentDirty()||public override void ClearComponentDirty()|
 |ClearData()||public override void ClearData()|
diff --git a/Documentation~/zh/changelog.md b/Documentation~/zh/changelog.md
index 8656fed8..03fd4317 100644
--- a/Documentation~/zh/changelog.md
+++ b/Documentation~/zh/changelog.md
@@ -73,6 +73,8 @@ slug: /changelog
 
 ## master
 
+* (2024.03.20) 增加`Tooltip`的`triggerOn`设置触发条件
+
 ## v3.10.2
 
 * (2024.03.11) 发布`v3.10.2`版本
diff --git a/Documentation~/zh/configuration.md b/Documentation~/zh/configuration.md
index 885954ea..db80a6fe 100644
--- a/Documentation~/zh/configuration.md
+++ b/Documentation~/zh/configuration.md
@@ -2231,6 +2231,7 @@ Serie的状态样式。Serie的状态有正常，高亮，淡出，选中四种
 |show|true||是否显示提示框组件。
 |type|||提示框指示器类型。<br/>`Tooltip.Type`:<br/>- `Line`: 直线指示器<br/>- `Shadow`: 阴影指示器<br/>- `None`: 无指示器<br/>- `Corss`: 十字准星指示器。坐标轴显示Label和交叉线。<br/>- `Auto`: 根据serie的类型自动选择显示指示器。<br/>|
 |trigger|||触发类型。<br/>`Tooltip.Trigger`:<br/>- `Item`: 数据项图形触发，主要在散点图，饼图等无类目轴的图表中使用。<br/>- `Axis`: 坐标轴触发，主要在柱状图，折线图等会使用类目轴的图表中使用。<br/>- `None`: 什么都不触发。<br/>- `Auto`: 根据serie的类型自动选择触发类型。<br/>|
+|triggerOn||v3.11.0|触发条件。<br/>`Tooltip.TriggerOn`:<br/>- `MouseMove`: 鼠标移动时触发。<br/>- `Click`: 鼠标点击时触发。<br/>|
 |position||v3.3.0|显示位置类型。<br/>`Tooltip.Position`:<br/>- `Auto`: 自适应。移动平台靠顶部显示，非移动平台跟随鼠标位置。<br/>- `Custom`: 自定义。完全自定义显示位置(x,y)。<br/>- `FixedX`: 只固定坐标X。Y跟随鼠标位置。<br/>- `FixedY`: <br/>|
 |itemFormatter|||提示框单个serie或数据项内容的字符串模版格式器。支持用 \n 换行。用|来表示多个列的分隔。 模板变量有{.}、{a}、{b}、{c}、{d}、{e}、{f}、{g}。<br/> {i}或-表示忽略当前项。 {.}为当前所指示的serie或数据项的对应颜色的圆点。<br/> {a}为当前所指示的serie或数据项的系列名name。<br/> {b}为当前所指示的serie或数据项的数据项serieData的name，或者类目值（如折线图的X轴）。<br/> {c}为当前所指示的serie或数据项的y维（dimesion为1）的数值。<br/> {d}为当前所指示的serie或数据项的y维（dimesion为1）百分比值，注意不带%号。<br/> {e}为当前所指示的serie或数据项的数据项serieData的name。<br/> {f}为当前所指示的serie的默认维度的数据总和。<br/> {g}为当前所指示的serie的数据总个数。<br/> {h}为当前所指示的serie的十六进制颜色值。<br/> {y}为当前所指示的serie的y轴的类目值。<br/> {c0}表示当前数据项维度为0的数据。<br/> {c1}表示当前数据项维度为1的数据。<br/> {d3}表示维度3的数据的百分比。它的分母是默认维度（一般是1维度）数据。<br/> |表示多个列的分隔。<br/> 示例："{i}", "{.}|{a}|{c}", "{.}|{b}|{c2:f2}", "{.}|{b}|{y}"
 |titleFormatter|||提示框标题内容的字符串模版格式器。支持用 \n 换行。可以单独设置占位符{i}表示忽略不显示title。 模板变量有{.}、{a}、{b}、{c}、{d}、{e}、{f}、{g}。<br/> {.}为当前所指示或index为0的serie的对应颜色的圆点。<br/> {a}为当前所指示或index为0的serie的系列名name。<br/> {b}为当前所指示或index为0的serie的数据项serieData的name，或者类目值（如折线图的X轴）。<br/> {c}为当前所指示或index为0的serie的y维（dimesion为1）的数值。<br/> {d}为当前所指示或index为0的serie的y维（dimesion为1）百分比值，注意不带%号。<br/> {e}为当前所指示或index为0的serie的数据项serieData的name。<br/> {h}为当前所指示或index为0的serie的数据项serieData的十六进制颜色值。<br/> {f}为数据总和。<br/> {g}为数据总个数。<br/> {f}为value所对应的y轴的类目值。<br/> {.1}表示指定index为1的serie对应颜色的圆点。<br/> {a1}、{b1}、{c1}中的1表示指定index为1的serie。<br/> {c1:2}表示索引为1的serie的当前指示数据项的第3个数据（一个数据项有多个数据，index为2表示第3个数据）。<br/> {c1:2-2}表示索引为1的serie的第3个数据项的第3个数据（也就是要指定第几个数据项时必须要指定第几个数据）。<br/> {d1:2:f2}表示单独指定了数值的格式化字符串为f2（不指定时用numericFormatter）。<br/> {d:0.##} 表示单独指定了数值的格式化字符串为 0.## （用于百分比，保留2位有效数同时又能避免使用 f2 而出现的类似于"100.00%"的情况 ）。<br/> 示例："{a}:{c}"、"{a1}:{c1:f1}"、"{a1}:{c1:0:f1}"、"{a1}:{c1:1-1:f1}"
diff --git a/Editor/MainComponents/TooltipEditor.cs b/Editor/MainComponents/TooltipEditor.cs
index 179048e5..1fe592f5 100644
--- a/Editor/MainComponents/TooltipEditor.cs
+++ b/Editor/MainComponents/TooltipEditor.cs
@@ -11,6 +11,7 @@ namespace XCharts.Editor
             ++EditorGUI.indentLevel;
             PropertyField("m_Type");
             PropertyField("m_Trigger");
+            PropertyField("m_TriggerOn");
             PropertyField("m_Position");
             PropertyField("m_FixedX");
             PropertyField("m_FixedY");
diff --git a/Examples/Example01_RandomData.cs b/Examples/Example01_RandomData.cs
index c3c32376..80eb1281 100644
--- a/Examples/Example01_RandomData.cs
+++ b/Examples/Example01_RandomData.cs
@@ -17,24 +17,52 @@ namespace XCharts.Example
         public bool loopUpdate = false;
         public float loopUpadteTime = 1f;
         public int maxCache = 0;
+        public bool insertDataToHead = false;
 
         BaseChart chart;
         float lastAddTime;
         float lastUpdateTime;
         int dataCount;
 
+        int lastMaxCache = 0;
+        bool lastInsertDataToHead = false;
+
         void Awake()
         {
             chart = gameObject.GetComponent<BaseChart>();
+            chart.onInit = () =>
+            {
+                dataCount = chart.GetSerie(0).dataCount;
+                SetMaxCache(maxCache);
+                SetInsertDataToHead(insertDataToHead);
+                lastMaxCache = maxCache;
+                lastInsertDataToHead = insertDataToHead;
+            };
         }
 
-        void Start()
+        void SetMaxCache(int maxCache)
         {
-            if (maxCache > 0)
+            chart.SetMaxCache(maxCache);
+        }
+
+        void SetInsertDataToHead(bool insertDataToHead)
+        {
+            foreach (var serie in chart.series)
+                serie.insertDataToHead = insertDataToHead;
+
+            var coms = chart.GetChartComponents<XAxis>();
+            if (coms != null)
             {
-                chart.SetMaxCache(maxCache);
+                foreach (var com in coms)
+                {
+                    var axis = com as XAxis;
+                    if (axis.type == Axis.AxisType.Category)
+                    {
+                        axis.insertDataToHead = insertDataToHead;
+                        Debug.LogError("axis:" + axis + "," + insertDataToHead);
+                    }
+                }
             }
-            dataCount = chart.GetSerie(0).dataCount;
         }
 
         void Update()
@@ -51,6 +79,16 @@ namespace XCharts.Example
             {
                 chart.ClearData();
             }
+            if (lastMaxCache != maxCache)
+            {
+                lastMaxCache = maxCache;
+                SetMaxCache(maxCache);
+            }
+            if (lastInsertDataToHead != insertDataToHead)
+            {
+                lastInsertDataToHead = insertDataToHead;
+                SetInsertDataToHead(insertDataToHead);
+            }
             lastAddTime += Time.deltaTime;
             if (loopAdd && lastAddTime >= loopAddTime)
             {
@@ -84,14 +122,8 @@ namespace XCharts.Example
             }
             else
             {
+                AddXAxisData();
                 var xAxis = chart.GetChartComponent<XAxis>();
-                if (xAxis != null)
-                {
-                    if (xAxis.type == Axis.AxisType.Category)
-                    {
-                        chart.AddXAxisData("x" + (xAxis.GetAddedDataCount() + 1));
-                    }
-                }
                 foreach (var serie in chart.series)
                 {
                     AddSerieRandomData(serie, xAxis);
@@ -99,6 +131,19 @@ namespace XCharts.Example
             }
         }
 
+        void AddXAxisData()
+        {
+            var xAxes = chart.GetChartComponents<XAxis>();
+            foreach (var com in xAxes)
+            {
+                var xAxis = com as XAxis;
+                if (xAxis.type == Axis.AxisType.Category)
+                {
+                    chart.AddXAxisData("x" + (xAxis.GetAddedDataCount() + 1), xAxis.index);
+                }
+            }
+        }
+
         void UpdateData()
         {
             foreach (var serie in chart.series)
diff --git a/Runtime/Component/Axis/XAxis/XAxisHander.cs b/Runtime/Component/Axis/XAxis/XAxisHander.cs
index c1b5cf14..04731658 100644
--- a/Runtime/Component/Axis/XAxis/XAxisHander.cs
+++ b/Runtime/Component/Axis/XAxis/XAxisHander.cs
@@ -1,5 +1,6 @@
 using UnityEngine;
 using UnityEngine.UI;
+using UnityEngine.EventSystems;
 
 namespace XCharts.Runtime
 {
@@ -16,7 +17,28 @@ namespace XCharts.Runtime
         public override void Update()
         {
             UpdateAxisMinMaxValue(component.index, component);
-            UpdatePointerValue(component);
+            if (!chart.isTriggerOnClick)
+            {
+               UpdatePointerValue(component);
+            }
+        }
+
+        public override void OnPointerClick(PointerEventData eventData)
+        {
+            base.OnPointerClick(eventData);
+            if (chart.isTriggerOnClick)
+            {
+                UpdatePointerValue(component);
+            }
+        }
+
+        public override void OnPointerExit(PointerEventData eventData)
+        {
+            base.OnPointerExit(eventData);
+            if (chart.isTriggerOnClick)
+            {
+                component.context.pointerValue = double.PositiveInfinity;
+            }
         }
 
         public override void DrawBase(VertexHelper vh)
diff --git a/Runtime/Component/Tooltip/Tooltip.cs b/Runtime/Component/Tooltip/Tooltip.cs
index 13cac7f7..fd6718b0 100644
--- a/Runtime/Component/Tooltip/Tooltip.cs
+++ b/Runtime/Component/Tooltip/Tooltip.cs
@@ -73,6 +73,23 @@ namespace XCharts.Runtime
             Auto
         }
         /// <summary>
+        /// the condition of trigger tooltip.
+        /// ||触发条件。
+        /// </summary>
+        public enum TriggerOn
+        {
+            /// <summary>
+            /// Trigger when mouse move.
+            /// ||鼠标移动时触发。
+            /// </summary>
+            MouseMove,
+            /// <summary>
+            /// Trigger when mouse click.
+            /// ||鼠标点击时触发。
+            /// </summary>
+            Click,
+        }
+        /// <summary>
         /// Position type.
         /// ||坐标类型。
         /// </summary>
@@ -102,6 +119,7 @@ namespace XCharts.Runtime
         [SerializeField] private bool m_Show = true;
         [SerializeField] private Type m_Type = Type.Auto;
         [SerializeField] private Trigger m_Trigger = Trigger.Auto;
+        [SerializeField][Since("v3.11.0")] private TriggerOn m_TriggerOn = TriggerOn.MouseMove;
         [SerializeField][Since("v3.3.0")] private Position m_Position = Position.Auto;
         [SerializeField] private string m_ItemFormatter;
         [SerializeField] private string m_TitleFormatter;
@@ -144,6 +162,12 @@ namespace XCharts.Runtime
         public TooltipContext context = new TooltipContext();
         public TooltipView view;
 
+        /// <summary>
+        /// the callback of tooltip click index.
+        /// ||Tooltip为Click触发时，点击的X轴索引的回调。
+        /// </summary>
+        public System.Action<int> onClickIndex { get; set; }
+
         /// <summary>
         /// Whether to show the tooltip component.
         /// ||是否显示提示框组件。
@@ -172,6 +196,15 @@ namespace XCharts.Runtime
             set { if (PropertyUtil.SetStruct(ref m_Trigger, value)) SetAllDirty(); }
         }
         /// <summary>
+        /// Condition of trigger tooltip.
+        /// ||触发条件。
+        /// </summary>
+        public TriggerOn triggerOn
+        {
+            get { return m_TriggerOn; }
+            set { if (PropertyUtil.SetStruct(ref m_TriggerOn, value)) SetAllDirty(); }
+        }
+        /// <summary>
         /// Type of position.
         /// ||显示位置类型。
         /// </summary>
diff --git a/Runtime/Component/Tooltip/TooltipContext.cs b/Runtime/Component/Tooltip/TooltipContext.cs
index e0674e3a..b7e090ed 100644
--- a/Runtime/Component/Tooltip/TooltipContext.cs
+++ b/Runtime/Component/Tooltip/TooltipContext.cs
@@ -19,6 +19,7 @@ namespace XCharts.Runtime
         public float width;
         public float height;
         public float angle;
+        public int xAxisClickIndex = -1;
         public Tooltip.Type type;
         public Tooltip.Trigger trigger;
         public TooltipData data = new TooltipData();
diff --git a/Runtime/Component/Tooltip/TooltipHandler.cs b/Runtime/Component/Tooltip/TooltipHandler.cs
index aec2878a..aeb21bea 100644
--- a/Runtime/Component/Tooltip/TooltipHandler.cs
+++ b/Runtime/Component/Tooltip/TooltipHandler.cs
@@ -1,6 +1,7 @@
 using System.Collections.Generic;
 using System.Text;
 using UnityEngine;
+using UnityEngine.EventSystems;
 using UnityEngine.UI;
 using XUGL;
 
@@ -36,6 +37,15 @@ namespace XCharts.Runtime
             DrawTooltipIndicator(vh, component);
         }
 
+        public override void OnPointerExit(PointerEventData eventData)
+        {
+            base.OnPointerExit(eventData);
+            if (chart.isTriggerOnClick)
+            {
+                component.context.xAxisClickIndex = -1;
+            }
+        }
+
         private void InitTooltip(Tooltip tooltip)
         {
             tooltip.painter = chart.m_PainterUpper;
@@ -70,6 +80,7 @@ namespace XCharts.Runtime
                         m_IndicatorLabels[labelName] = item;
                     }
                 }
+                chart.isTriggerOnClick = tooltip.triggerOn == Tooltip.TriggerOn.Click;
             };
             tooltip.refreshComponent();
         }
@@ -93,39 +104,54 @@ namespace XCharts.Runtime
 
         private void UpdateTooltipData(Tooltip tooltip)
         {
-            showTooltip = false;
+            m_ShowTooltip = false;
             if (tooltip.trigger == Tooltip.Trigger.None) return;
-            if (chart.isPointerInChart && tooltip.show)
+            chart.isTriggerOnClick = tooltip.triggerOn == Tooltip.TriggerOn.Click;
+            if (!chart.isPointerInChart || !tooltip.show || (chart.isTriggerOnClick && !chart.isPointerClick))
             {
                 for (int i = chart.series.Count - 1; i >= 0; i--)
                 {
                     var serie = chart.series[i];
                     if (!(serie is INeedSerieContainer))
                     {
-                        showTooltip = true;
-                        containerSeries = null;
+                        m_ShowTooltip = true;
+                        m_ContainerSeries = null;
                         return;
                     }
                 }
-                containerSeries = ListPool<Serie>.Get();
-                UpdatePointerContainerAndSeriesAndTooltip(tooltip, ref containerSeries);
-                if (containerSeries.Count > 0)
+                m_ContainerSeries = ListPool<Serie>.Get();
+                UpdatePointerContainerAndSeriesAndTooltip(tooltip, ref m_ContainerSeries);
+                if (m_ContainerSeries.Count > 0)
                 {
-                    showTooltip = true;
+                    m_ShowTooltip = true;
+                    m_ContainerSeries = null;
+                    return;
                 }
             }
-            if (!showTooltip && tooltip.IsActive())
+            m_ContainerSeries = ListPool<Serie>.Get();
+            UpdatePointerContainerAndSeriesAndTooltip(tooltip, ref m_ContainerSeries);
+            if (m_ContainerSeries.Count > 0)
             {
-                tooltip.ClearValue();
-                tooltip.SetActive(false);
+                m_ShowTooltip = true;
+            }
+            else
+            {
+                m_ShowTooltip = false;
+                if (tooltip.IsActive())
+                {
+                    tooltip.ClearValue();
+                    tooltip.SetActive(false);
+                    component.context.xAxisClickIndex = -1;
+                    chart.pointerClickEventData = null;
+                }
             }
         }
 
-        private bool showTooltip;
-        private List<Serie> containerSeries;
+        private bool m_ShowTooltip;
+        private List<Serie> m_ContainerSeries;
         private void UpdateTooltip(Tooltip tooltip)
         {
-            if (!showTooltip) return;
+            if (!m_ShowTooltip) return;
             var anyTrigger = false;
             for (int i = chart.series.Count - 1; i >= 0; i--)
             {
@@ -140,24 +166,27 @@ namespace XCharts.Runtime
                     }
                 }
             }
-            if (containerSeries != null)
+            if (m_ContainerSeries != null)
             {
-                if (!SetSerieTooltip(tooltip, containerSeries))
-                    showTooltip = false;
+                if (!SetSerieTooltip(tooltip, m_ContainerSeries))
+                    m_ShowTooltip = false;
                 else
                     anyTrigger = true;
-                ListPool<Serie>.Release(containerSeries);
+                ListPool<Serie>.Release(m_ContainerSeries);
             }
-            if (!showTooltip || !anyTrigger)
+            if (!m_ShowTooltip || !anyTrigger)
             {
                 if (tooltip.context.type == Tooltip.Type.Corss && m_PointerContainer != null && m_PointerContainer.IsPointerEnter())
                 {
+                    m_ShowTooltip = true;
                     tooltip.SetActive(true);
                     tooltip.SetContentActive(false);
                 }
                 else
                 {
+                    m_ShowTooltip = false;
                     tooltip.SetActive(false);
+                    chart.pointerClickEventData = null;
                 }
             }
             else
@@ -274,20 +303,26 @@ namespace XCharts.Runtime
                                         serie.context.tooltipTrigger : tooltip.trigger;
                                 }
                                 var isTriggerAxis = tooltip.IsTriggerAxis();
+                                var inchart = true;
                                 if (container is GridCoord)
                                 {
                                     var xAxis = chart.GetChartComponent<XAxis>(serie.xAxisIndex);
                                     var yAxis = chart.GetChartComponent<YAxis>(serie.yAxisIndex);
-                                    UpdateAxisPointerDataIndex(serie, xAxis, yAxis, container as GridCoord, isTriggerAxis);
+                                    inchart = UpdateAxisPointerDataIndex(serie, xAxis, yAxis, container as GridCoord, isTriggerAxis);
                                 }
                                 else if (container is PolarCoord)
                                 {
                                     var m_AngleAxis = ComponentHelper.GetAngleAxis(chart.components, container.index);
                                     tooltip.context.angle = (float)m_AngleAxis.context.pointerValue;
                                 }
-                                list.Add(serie);
-                                if (!isTriggerAxis)
-                                    chart.RefreshTopPainter();
+                                if (inchart)
+                                {
+                                    list.Add(serie);
+                                    if (!isTriggerAxis)
+                                    {
+                                        chart.RefreshTopPainter();
+                                    }
+                                }
                             }
                         }
                         m_PointerContainer = container;
@@ -296,10 +331,11 @@ namespace XCharts.Runtime
             }
         }
 
-        private void UpdateAxisPointerDataIndex(Serie serie, XAxis xAxis, YAxis yAxis, GridCoord grid, bool isTriggerAxis)
+        private bool UpdateAxisPointerDataIndex(Serie serie, XAxis xAxis, YAxis yAxis, GridCoord grid, bool isTriggerAxis)
         {
             serie.context.pointerAxisDataIndexs.Clear();
-            if (xAxis == null || yAxis == null) return;
+            if (xAxis == null || yAxis == null) return false;
+            var flag = true;
             if (serie is Heatmap)
             {
                 GetSerieDataByXYAxis(serie, xAxis, yAxis);
@@ -328,20 +364,45 @@ namespace XCharts.Runtime
                 if (isTriggerAxis)
                 {
                     var index = serie.context.dataZoomStartIndex + (int)xAxis.context.pointerValue;
+                    if (chart.isTriggerOnClick)
+                    {
+                        if (serie.insertDataToHead)
+                            index = index + (serie.context.totalDataIndex - serie.context.clickTotalDataIndex);
+                        else if (serie.context.totalDataIndex >= serie.dataCount)
+                            index = index - (serie.context.totalDataIndex - serie.context.clickTotalDataIndex);
+                        if (index < 0 || index >= serie.dataCount)
+                        {
+                            index = -1;
+                            flag = false;
+                        }
+                    }
+                    if (component.context.xAxisClickIndex != index)
+                    {
+                        component.context.xAxisClickIndex = index;
+                        if (component.onClickIndex != null)
+                        {
+                            component.onClickIndex(index);
+                        }
+                    }
                     serie.context.pointerEnter = true;
                     serie.context.pointerAxisDataIndexs.Add(index);
                     serie.context.pointerItemDataIndex = index;
-                    xAxis.context.axisTooltipValue = xAxis.context.pointerValue;
+                    xAxis.context.axisTooltipValue = index;
                 }
             }
             else
             {
-                serie.context.pointerEnter = true;
                 if (isTriggerAxis)
+                {
+                    serie.context.pointerEnter = true;
                     GetSerieDataIndexByAxis(serie, xAxis, grid);
+                }
                 else
+                {
                     GetSerieDataIndexByItem(serie, xAxis, grid);
+                }
             }
+            return flag;
         }
 
         private void GetSerieDataByXYAxis(Serie serie, Axis xAxis, Axis yAxis)
@@ -464,7 +525,7 @@ namespace XCharts.Runtime
             if (tooltip.context.trigger == Tooltip.Trigger.None) return false;
             tooltip.context.data.param.Clear();
             tooltip.context.data.title = serie.serieName;
-            tooltip.context.pointer = chart.pointerPos;
+            tooltip.context.pointer = GetTooltipPointerPos();
 
             serie.handler.UpdateTooltipSerieParams(serie.context.pointerItemDataIndex, false, null,
                 tooltip.marker, tooltip.itemFormatter, tooltip.numericFormatter, tooltip.ignoreDataDefaultContent,
@@ -472,12 +533,20 @@ namespace XCharts.Runtime
                 ref tooltip.context.data.title);
             TooltipHelper.ResetTooltipParamsByItemFormatter(tooltip, chart);
 
-            tooltip.SetActive(true);
+            tooltip.SetActive(m_ShowTooltip);
             tooltip.view.Refresh();
             TooltipHelper.LimitInRect(tooltip, chart.chartRect);
             return true;
         }
 
+        private Vector2 GetTooltipPointerPos()
+        {
+            if (chart.isTriggerOnClick && chart.isPointerClick)
+                return chart.clickPos;
+            else
+                return chart.pointerPos;
+        }
+
         private bool SetSerieTooltip(Tooltip tooltip, List<Serie> series)
         {
             if (tooltip.context.trigger == Tooltip.Trigger.None)
@@ -489,10 +558,10 @@ namespace XCharts.Runtime
             string category = null;
             var showCategory = false;
             var isTriggerByAxis = false;
-            var isTriggerByItem = false;
+            var isTriggerByItem = tooltip.context.trigger == Tooltip.Trigger.Item;
             var dataIndex = -1;
             tooltip.context.data.param.Clear();
-            tooltip.context.pointer = chart.pointerPos;
+            tooltip.context.pointer = GetTooltipPointerPos();
             if (m_PointerContainer is GridCoord)
             {
                 GetAxisCategory(m_PointerContainer.index, ref dataIndex, ref category);
@@ -514,11 +583,13 @@ namespace XCharts.Runtime
                 }
             }
 
+            var triggerSerieCount = 0;
             for (int i = 0; i < series.Count; i++)
             {
                 var serie = series[i];
                 if (!serie.show) continue;
                 if (isTriggerByItem && serie.context.pointerItemDataIndex < 0) continue;
+                triggerSerieCount++;
                 serie.context.isTriggerByAxis = isTriggerByAxis;
                 if (isTriggerByAxis && dataIndex >= 0 && serie.context.pointerItemDataIndex < 0)
                     serie.context.pointerItemDataIndex = dataIndex;
@@ -528,10 +599,14 @@ namespace XCharts.Runtime
                     ref tooltip.context.data.param,
                     ref tooltip.context.data.title);
             }
+            if (triggerSerieCount <= 0)
+            {
+                return false;
+            }
             TooltipHelper.ResetTooltipParamsByItemFormatter(tooltip, chart);
             if (tooltip.context.data.param.Count > 0 || !string.IsNullOrEmpty(tooltip.context.data.title))
             {
-                tooltip.SetActive(true);
+                tooltip.SetActive(m_ShowTooltip);
                 if (tooltip.view != null)
                     tooltip.view.Refresh();
                 TooltipHelper.LimitInRect(tooltip, chart.chartRect);
@@ -551,7 +626,7 @@ namespace XCharts.Runtime
                     {
                         dataIndex = double.IsNaN(axis.context.pointerValue)
                             ? axis.context.dataZoomStartIndex
-                            : axis.context.dataZoomStartIndex + (int)axis.context.pointerValue;
+                            : axis.context.dataZoomStartIndex + (int)axis.context.axisTooltipValue;
                         category = axis.GetData(dataIndex);
                         return true;
                     }
@@ -616,7 +691,7 @@ namespace XCharts.Runtime
                         case Tooltip.Type.Line:
                             float pX = grid.context.x;
                             pX += xAxis.IsCategory() ?
-                                (float)(xAxis.context.pointerValue * splitWidth + (xAxis.boundaryGap ? splitWidth / 2 : 0)) :
+                                (float)(xAxis.context.axisTooltipValue * splitWidth + (xAxis.boundaryGap ? splitWidth / 2 : 0)) :
                                 xAxis.GetDistance(xAxis.context.axisTooltipValue, grid.context.width);
                             if (pX < grid.context.x)
                                 break;
diff --git a/Runtime/Internal/BaseChart.API.cs b/Runtime/Internal/BaseChart.API.cs
index 9da4fdf2..f61a647f 100644
--- a/Runtime/Internal/BaseChart.API.cs
+++ b/Runtime/Internal/BaseChart.API.cs
@@ -566,6 +566,26 @@ namespace XCharts.Runtime
             }
         }
 
+        /// <summary>
+        /// set insert data to head.
+        /// ||设置数据插入到头部。
+        /// </summary>
+        /// <param name="insertDataToHead"></param>
+        [Since("v3.11.0")]
+        public void SetInsertDataToHead(bool insertDataToHead)
+        {
+            foreach (var serie in m_Series)
+                serie.insertDataToHead = insertDataToHead;
+
+            var coms = GetChartComponents<XAxis>();
+            foreach (var com in coms)
+            {
+                var axis = com as XAxis;
+                if (axis.type == Axis.AxisType.Category)
+                    axis.insertDataToHead = insertDataToHead;
+            }
+        }
+
         public Vector3 GetTitlePosition(Title title)
         {
             return chartPosition + title.location.GetPosition(chartWidth, chartHeight);
@@ -735,7 +755,8 @@ namespace XCharts.Runtime
         [Since("v3.7.0")]
         public void CancelTooltip()
         {
-            m_PointerEventData = null;
+            pointerMoveEventData = null;
+            pointerClickEventData = null;
             var tooltip = GetChartComponent<Tooltip>();
             if (tooltip != null)
             {
diff --git a/Runtime/Internal/BaseGraph.API.cs b/Runtime/Internal/BaseGraph.API.cs
index f659a233..210d681e 100644
--- a/Runtime/Internal/BaseGraph.API.cs
+++ b/Runtime/Internal/BaseGraph.API.cs
@@ -43,16 +43,21 @@ namespace XCharts.Runtime
         public Vector2 graphMaxAnchor { get { return m_GraphMaxAnchor; } }
         public Vector2 graphAnchoredPosition { get { return m_GraphAnchoredPosition; } }
         /// <summary>
-        /// The postion of pointer.
+        /// The postion of pointer move.
         /// ||鼠标位置。
         /// </summary>
         public Vector2 pointerPos { get; protected set; }
+        public Vector2 clickPos { get; protected set; }
         /// <summary>
         /// Whether the mouse pointer is in the chart.
         /// ||鼠标是否在图表内。
         /// </summary>
-        public bool isPointerInChart
-        { get { return m_PointerEventData != null; } }
+        public bool isPointerInChart { get { return pointerMoveEventData != null; } }
+        /// <summary>
+        /// Whether the mouse click the chart.
+        /// ||鼠标是否点击了图表。
+        /// </summary>
+        public bool isPointerClick { get { return pointerClickEventData != null; } }
         /// <summary>
         /// 警告信息。
         /// </summary>
diff --git a/Runtime/Internal/BaseGraph.cs b/Runtime/Internal/BaseGraph.cs
index c723a829..2bf81ac1 100644
--- a/Runtime/Internal/BaseGraph.cs
+++ b/Runtime/Internal/BaseGraph.cs
@@ -35,7 +35,9 @@ namespace XCharts.Runtime
         protected bool m_PainerDirty = false;
         protected bool m_IsOnValidate = false;
         protected Vector3 m_LastLocalPosition;
-        protected PointerEventData m_PointerEventData;
+        internal PointerEventData pointerMoveEventData;
+        internal PointerEventData pointerClickEventData;
+        internal bool isTriggerOnClick = false;
 
         protected Action<PointerEventData, BaseGraph> m_OnPointerClick;
         protected Action<PointerEventData, BaseGraph> m_OnPointerDown;
@@ -213,17 +215,23 @@ namespace XCharts.Runtime
 
         private void CheckPointerPos()
         {
-            if (!isPointerInChart) return;
             if (canvas == null) return;
-            Vector2 mousePos = m_PointerEventData.position;
+            if (pointerMoveEventData != null)
+            {
+                pointerPos = MousePos2ChartPos(pointerMoveEventData.position);
+            }
+        }
+
+        private Vector2 MousePos2ChartPos(Vector2 mousePos)
+        {
             Vector2 local;
             if (!ScreenPointToChartPoint(mousePos, out local))
             {
-                pointerPos = Vector2.zero;
+                return Vector2.zero;
             }
             else
             {
-                pointerPos = local;
+                return local;
             }
         }
 
@@ -269,6 +277,8 @@ namespace XCharts.Runtime
 
         public virtual void OnPointerClick(PointerEventData eventData)
         {
+            pointerClickEventData = eventData;
+            clickPos = MousePos2ChartPos(pointerClickEventData.position);
             if (m_OnPointerClick != null) m_OnPointerClick(eventData, this);
         }
 
@@ -284,13 +294,14 @@ namespace XCharts.Runtime
 
         public virtual void OnPointerEnter(PointerEventData eventData)
         {
-            m_PointerEventData = eventData;
+            pointerMoveEventData = eventData;
             if (m_OnPointerEnter != null) m_OnPointerEnter(eventData, this);
         }
 
         public virtual void OnPointerExit(PointerEventData eventData)
         {
-            m_PointerEventData = null;
+            pointerMoveEventData = null;
+            pointerClickEventData = null;
             if (m_OnPointerExit != null) m_OnPointerExit(eventData, this);
         }
 
diff --git a/Runtime/Serie/SerieContext.cs b/Runtime/Serie/SerieContext.cs
index 624e0d9e..d3b3931a 100644
--- a/Runtime/Serie/SerieContext.cs
+++ b/Runtime/Serie/SerieContext.cs
@@ -119,6 +119,7 @@ namespace XCharts.Runtime
         public Tooltip.Type tooltipType;
         public Tooltip.Trigger tooltipTrigger;
         public int totalDataIndex;
+        public int clickTotalDataIndex;
         /// <summary>
         /// 水平方向的
         /// </summary>
diff --git a/Runtime/Serie/SerieHandler.cs b/Runtime/Serie/SerieHandler.cs
index 7ebfc2c7..fd232af3 100644
--- a/Runtime/Serie/SerieHandler.cs
+++ b/Runtime/Serie/SerieHandler.cs
@@ -741,6 +741,7 @@ namespace XCharts.Runtime
 
         public override void OnPointerClick(PointerEventData eventData)
         {
+            serie.context.clickTotalDataIndex = serie.context.totalDataIndex;
             if (serie.onClick == null && chart.onSerieClick == null) return;
             if (!serie.context.pointerEnter) return;
             var dataIndex = GetPointerItemDataIndex();
diff --git a/package.json b/package.json
index a5b150d6..6425d8bc 100644
--- a/package.json
+++ b/package.json
@@ -3,9 +3,9 @@
   "displayName": "XCharts",
   "author": "monitor1394",
   "license": "MIT",
-  "version": "3.10.2",
-  "date": "20240311",
-  "checkdate": "20240311",
+  "version": "3.11.0-preview1",
+  "date": "20240223",
+  "checkdate": "20240223",
   "unity": "2018.3",
   "description": "A charting and data visualization library for Unity. Support line chart, bar chart, pie chart, radar chart, scatter chart, heatmap chart, ring chart, candlestick chart, polar chart and parallel coordinates.",
   "keywords": [