在代码隐藏中添加后，RadGrid ItemCommand不会触发

Question

I am using a Telerik RadGrid in an ASP.NET website and I need to programmatically add an ItemCommand event handler from my page's PreRender event:

MyGrid.ItemCommand += new GridCommandEventHandler(OnItemCommand);

However, OnItemCommand is never called. If I put it in the .aspx file it works fine: OnItemCommand="OnItemCommand" , just not when I add it in C#.

What's going on here? TYIA.

Answer 1

Add the handler when you create the grid (in Page_Load or Page_Init): http://www.telerik.com/help/aspnet-ajax/grid-programmatic-creation.html . Or, simply in the markup. If you need it to fire only on a certain condition, you can add that condition inside the handler itself and exit it.

EDIT: Try using the following code as base as it worked fine for me:

        <telerik:RadGrid ID="RadGrid1" runat="server" OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView>
                <Columns>
                    <telerik:GridEditCommandColumn></telerik:GridEditCommandColumn>
                </Columns>
            </MasterTableView>
        </telerik:RadGrid>

and server side:

protected void Page_Load(object sender, EventArgs e)
{
    RadGrid1.ItemCommand += RadGrid1_ItemCommand;
}

protected void RadGrid1_ItemCommand(object sender, GridCommandEventArgs e)
{
    throw new NotImplementedException();
}


protected DataTable GetData()
{
    DataTable tbl = new DataTable();
    tbl.Columns.Add(new DataColumn("Description"));
    tbl.Columns.Add(new DataColumn("ParameterName"));
    tbl.Columns.Add(new DataColumn("ThirdColumn"));
    tbl.Columns.Add(new DataColumn("FourthColumn"));
    tbl.Rows.Add(new object[] { "firstRecord1", "firstRecord2", "firstRecord3", "firstRecord4" });
    tbl.Rows.Add(new object[] { "secondRecord1", "secondRecord2", "secondRecord3", "secondRecord4" });
    tbl.Rows.Add(new object[] { "thirdRecord1", "thirdRecord2", "thirdRecord3", "thirdRecord4" });
    tbl.Rows.Add(new object[] { "fourthRecord1", "fourthRecord2", "fourthRecord3", "fourthRecord4" });
    return tbl;
}


protected void RadGrid1_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)
{
    RadGrid1.DataSource=GetData();
}