Skip to main content
Tab

ASPxGridView.AfterPerformCallback Event

Fires after a callback or a postback initiated by the control has been processed on the server.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v24.1.dll

NuGet Package: DevExpress.Web

Declaration

public event ASPxGridViewAfterPerformCallbackEventHandler AfterPerformCallback

Event Data

The AfterPerformCallback event's data class is ASPxGridViewAfterPerformCallbackEventArgs. The following properties provide information specific to this event:

Property Description
Args Gets specific information (if any) passed from the client side. Inherited from ASPxGridAfterPerformCallbackEventArgs.
CallbackName Gets the callback name. Inherited from ASPxGridAfterPerformCallbackEventArgs.

Remarks

Handle the AfterPerformCallback event to perform actions after a callback or a postback initiated by the control has been processed on the server. Use the ASPxGridAfterPerformCallbackEventArgs.CallbackName property to identify the processed callback (e.g., ‘EXPANDROW’, SORT’, ‘COLUMNMOVE’, etc.).

Example

This sample illustrates one more way to get and set editors values using the AfterPerformCallback event handler.

<dx:ASPxGridView ID="ASPxGridView1" runat="server" AutoGenerateColumns="False"
    DataSourceID="AccessDataSource1" KeyFieldName="CategoryID" OnAfterPerformCallback="ASPxGridView1_AfterPerformCallback" OnRowUpdating="ASPxGridView1_RowUpdating">
    <Columns>
        <dx:GridViewCommandColumn ShowEditButton="True" />
        <dx:GridViewDataTextColumn FieldName="CategoryID" />
        <dx:GridViewDataTextColumn FieldName="CategoryName" />
        <dx:GridViewDataTextColumn FieldName="Description" />
    </Columns>
    <Templates>
        <EditForm>
            <table>
                <tr>
                    <td>CategoryID:</td>
                    <td>
                        <dx:ASPxLabel ID="ASPxLabel1" runat="server" Text='<%#Eval("CategoryID") %>'>
                        </dx:ASPxLabel>
                    </td>
                </tr>
                <tr>
                    <td>CategoryName:</td>
                    <td>
                        <dx:ASPxTextBox ID="ASPxTextBox1" runat="server" Width="170px" Text='<%#Bind("CategoryName") %>'>
                        </dx:ASPxTextBox>
                    </td>
                </tr>
                <tr>
                    <td>Description:</td>
                    <td>
                        <dx:ASPxTextBox ID="ASPxTextBox2" runat="server" Width="170px" BackColor="LemonChiffon">
                        </dx:ASPxTextBox>
                    </td>
                </tr>
                <tr>
                    <td></td>
                    <td style="font-size: x-small">*yellow is unbound</td>
                </tr>
            </table>
            <dx:ASPxGridViewTemplateReplacement ReplacementType="EditFormUpdateButton" ID="Upd" runat="server" />
            <dx:ASPxGridViewTemplateReplacement ReplacementType="EditFormCancelButton" ID="Cancel" runat="server" />
        </EditForm>
    </Templates>
</dx:ASPxGridView>
protected void ASPxGridView1_AfterPerformCallback(object sender, DevExpress.Web.ASPxGridViewAfterPerformCallbackEventArgs e) {
    if (e.CallbackName == "STARTEDIT") {
        int index = ((ASPxGridView)sender).EditingRowVisibleIndex;
        string val = ((ASPxGridView)sender).GetRowValues(index, "Description").ToString();
        ASPxTextBox box = ((ASPxGridView)sender).FindEditFormTemplateControl("ASPxTextBox2") as ASPxTextBox;
        box.Text = val;
    }
}
protected void ASPxGridView1_RowUpdating(object sender, DevExpress.Web.Data.ASPxDataUpdatingEventArgs e) {
    ASPxTextBox box = ((ASPxGridView)sender).FindEditFormTemplateControl("ASPxTextBox2") as ASPxTextBox;
    e.NewValues["Description"] = box.Text;
}
See Also