PivotGridCallbackStateEventArgs.CallbackState Property
Gets or sets the ASPxPivotGrid’s callback state.
Namespace: DevExpress.Web.ASPxPivotGrid
Assembly: DevExpress.Web.ASPxPivotGrid.v24.1.dll
NuGet Package: DevExpress.Web
Declaration
Property Value
Type | Description |
---|---|
String | A string value specifying the pivot grid’s callback state. |
Example
This example demonstrates how the ASPxPivotGrid.CustomSaveCallbackState and ASPxPivotGrid.CustomLoadCallbackState events can be handled to preserve the ASPxPivotGrid’s callback state within a Session.
<dxwpg:ASPxPivotGrid ID="ASPxPivotGrid1" runat="server"
OLAPConnectionString="provider=MSOLAP;
data source=https://demos.devexpress.com/Services/OLAP/msmdpump.dll;
initial catalog=Adventure Works DW Standard Edition;
cube name=Adventure Works;"
OnCustomLoadCallbackState="ASPxPivotGrid1_CustomLoadCallbackState"
OnCustomSaveCallbackState="ASPxPivotGrid1_CustomSaveCallbackState">
<Fields>
<dxwpg:PivotGridField ID="fieldCountry1" Area="RowArea" AreaIndex="0"
Caption="Country"
FieldName="[Customer].[Country].[Country]">
</dxwpg:PivotGridField>
<dxwpg:PivotGridField ID="fieldCity1" Area="RowArea" AreaIndex="1"
Caption="City"
FieldName="[Customer].[City].[City]">
</dxwpg:PivotGridField>
<dxwpg:PivotGridField ID="fieldCustomerCount" Area="DataArea" AreaIndex="0"
Caption="Customer Count"
FieldName="[Measures].[Customer Count]">
</dxwpg:PivotGridField>
</Fields>
</dxwpg:ASPxPivotGrid>
using System;
using DevExpress.Web.ASPxPivotGrid;
public partial class _Default : System.Web.UI.Page {
protected void Page_Load(object sender, EventArgs e) {
}
string GetPivotStateID(ASPxPivotGrid pivotGrid) {
return GetType().FullName + "_" + pivotGrid.ID;
}
protected void ASPxPivotGrid1_CustomSaveCallbackState(object sender,
PivotGridCallbackStateEventArgs e) {
Session[GetPivotStateID((ASPxPivotGrid)sender)] = e.CallbackState;
e.CallbackState = null;
e.Handled = true;
}
protected void ASPxPivotGrid1_CustomLoadCallbackState(object sender,
PivotGridCallbackStateEventArgs e) {
e.CallbackState = (string)Session[GetPivotStateID((ASPxPivotGrid)sender)];
e.Handled = true;
}
}
See Also