PivotCustomChartDataSourceDataEventHandler Delegate

A method that will handle the ASPxPivotGrid.CustomChartDataSourceData event.

Namespace: DevExpress.Web.ASPxPivotGrid

Assembly: DevExpress.Web.ASPxPivotGrid.v24.2.dll

Declaration

C#

public delegate void PivotCustomChartDataSourceDataEventHandler(
    object sender,
    PivotCustomChartDataSourceDataEventArgs e
);

VB.NET

Public Delegate Sub PivotCustomChartDataSourceDataEventHandler(
    sender As Object,
    e As PivotCustomChartDataSourceDataEventArgs
)

Parameters

Name	Type	Description
sender	Object	The event source. This parameter identifies the pivot grid which raised the event.
e	PivotCustomChartDataSourceDataEventArgs	A PivotCustomChartDataSourceDataEventArgs object that contains event data.

Example

The following example demonstrates how to add custom text to data prepared by the ASPxPivotGrid, to display it in a WebChartControl.

For this, it is necessary to handle the ASPxPivotGrid.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.

View Example

Form1.cs

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);
    }
}

Form1.vb

Private Sub pivotGridControl1_CustomChartDataSourceData(ByVal sender As Object, _
                              ByVal e As PivotCustomChartDataSourceDataEventArgs) _
                          Handles pivotGridControl1.CustomChartDataSourceData
    If e.ItemType = PivotChartItemType.RowItem Then
        If e.FieldValueInfo.Field Is fieldCategoryName Then
            e.Value = CategoryEncodeTable(e.FieldValueInfo.Value.ToString())
        ElseIf e.FieldValueInfo.Field Is fieldProductName Then
            Dim product As String = ProductEncodeTable(e.FieldValueInfo.Value.ToString())
            Dim category As String = CategoryEncodeTable(e.FieldValueInfo.GetHigherLevelFieldValue(fieldCategoryName).ToString())
            e.Value = product & "["c & category & "]"c
        End If
    End If
    If e.ItemType = PivotChartItemType.ColumnItem Then
        If e.FieldValueInfo.ValueType = PivotGridValueType.GrandTotal Then
            e.Value = "Total Sales"
        End If
    End If
    If e.ItemType = PivotChartItemType.CellItem Then
        e.Value = Math.Round(Convert.ToDecimal(e.CellInfo.Value), 0)
    End If
End Sub