GridViewDataColumn.UnGroup() Method

Clears the grouping applied to the column.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v23.2.dll

NuGet Package: DevExpress.Web

Declaration

C#

public void UnGroup()

VB.NET

Public Sub UnGroup

Remarks

When you call a column’s server-side UnGroup method, the grid behaves as follows:

• Clears the grouping applied to the column.
• Sets the GroupIndex property to -1.

To group data by the values of a particular column on the server side, call the ASPxGridView.GroupBy or GridViewDataColumn.GroupBy method.

For more information on grouping in the grid, refer to the following topic: ASPxGridView - Group Data.

ASPX

<dx:ASPxGridView ID="grid" runat="server" AutoGenerateColumns="False" KeyFieldName="CustomerID"
    OnCustomCallback="grid_CustomCallback">
    <Columns>
        <dx:GridViewDataTextColumn FieldName="Country" VisibleIndex="0" GroupIndex="0" />
        <%--...--%>
    </Columns>
    <Settings ShowGroupPanel="true" />
</dx:ASPxGridView>

C#

protected void grid_CustomCallback(object sender, ASPxGridViewCustomCallbackEventArgs e) {
    var column = grid.Columns["Country"] as GridViewDataColumn;
    column.UnGroup();
}

VB.NET

Protected Sub grid_CustomCallback(ByVal sender As Object, ByVal e As ASPxGridViewCustomCallbackEventArgs)
    Dim column = TryCast(grid.Columns("Country"), GridViewDataColumn)
    column.UnGroup()
End Sub