The example shows how to delete the selected rows of an ASPxGridView that is bound to an in-memory DataSource.
Use the client-side PerformCallback method to send custom callbacks to the server when a user clicks the Delete button.
function OnClickButtonDel(s, e) {
grid.PerformCallback('Delete');
}
...
<dx:ASPxButton ID="buttonDel" AutoPostBack="false"
runat="server" Text="Delete">
<ClientSideEvents Click="OnClickButtonDel"/>
</dx:ASPxButton>On the server, the PerformCallback method raises the CustomCallback event.
In the CustomCallback event handler, call the GetSelectedFieldValues method to obtain the selected rows. Then, call the Remove method for each selected row.
protected void gridView_CustomCallback(object sender, ASPxGridViewCustomCallbackEventArgs e) {
if(e.Parameters == "Delete") {
table = GetTable();
List<Object> selectItems = grid.GetSelectedFieldValues("ID");
foreach(object selectItemId in selectItems) {
table.Rows.Remove(table.Rows.Find(selectItemId));
}
grid.DataBind();
grid.Selection.UnselectAll();
}
}- Default.aspx (VB: Default.aspx)
- Default.aspx.cs (VB: Default.aspx.vb)
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