PivotCustomChartDataSourceDataEventHandler Delegate
Represents a method that will handle the PivotGridControl.CustomChartDataSourceData event.
Namespace: DevExpress.XtraPivotGrid
Assembly: DevExpress.XtraPivotGrid.v24.1.dll
NuGet Package: DevExpress.Win.PivotGrid
Declaration
public delegate void PivotCustomChartDataSourceDataEventHandler(
object sender,
PivotCustomChartDataSourceDataEventArgs e
);
Parameters
Name | Type | Description |
---|---|---|
sender | Object | The event source. This parameter identifies the Pivot Grid Control which raised the event. |
e | PivotCustomChartDataSourceDataEventArgs | A PivotCustomChartDataSourceDataEventArgs object that contains event data. |
Remarks
When creating a PivotCustomChartDataSourceDataEventHandler
delegate, you identify the method that will handle the corresponding event. To associate an event with your event handler, add a delegate instance to this event. The event handler is called whenever the event occurs, unless you remove the delegate. For more information about event handler delegates, see Events and Delegates in MSDN.
Example
The following example demonstrates how to add custom text to data prepared by the PivotGridControl, to display it in a ChartControl.
For this, it is necessary to handle the PivotGridControl.CustomChartDataSourceData event. In this event handler, you can determine the item type via the PivotCustomChartDataSourceDataEventArgs.ItemType property and change the PivotCustomChartDataSourceDataEventArgs.Value according to your custom requirements.
private void pivotGridControl1_CustomChartDataSourceData(object sender,
PivotCustomChartDataSourceDataEventArgs e) {
if(e.ItemType == PivotChartItemType.RowItem) {
if(e.FieldValueInfo.Field == fieldCategoryName) {
e.Value = CategoryEncodeTable[e.FieldValueInfo.Value.ToString()];
} else if(e.FieldValueInfo.Field == fieldProductName) {
string product =
ProductEncodeTable[e.FieldValueInfo.Value.ToString()];
string category =
CategoryEncodeTable[e.FieldValueInfo.GetHigherLevelFieldValue(fieldCategoryName).ToString()];
e.Value = product + '[' + category + ']';
}
}
if(e.ItemType == PivotChartItemType.ColumnItem) {
if(e.FieldValueInfo.ValueType == PivotGridValueType.GrandTotal) {
e.Value = "Total Sales";
}
}
if(e.ItemType == PivotChartItemType.CellItem) {
e.Value = Math.Round(Convert.ToDecimal(e.CellInfo.Value), 0);
}
}