radgrid checkbox not getting selected

[Mark]

Hi

I am using the following code to select checkbox of a radgrid, but it's not working:

foreach (GridDataItem grdItem in grv_Person.Items)
            {
                if (grdItem.Cells[person_id_Column].Text == person_id)
                {
                    ((CheckBox)grdItem.Cells[2].Controls[0]).Checked = true;
                    grdItem.Selected = true;
                }
            }

I can confirm this is the last thing I do in prerender event. The grid check box just doesn't get selected

Thanks

[Princy]

Hello Mark,

I am not sure whether you are using GridClientSelectColumn/CheckBox in GridTemplateColumn. You can try the following code snippet which shows how to select CheckBox based on cell value.

ASPX:

<Columns>
<telerik:GridBoundColumn DataField="ID" UniqueName="ID">
</telerik:GridBoundColumn>

<telerik:GridClientSelectColumn ></telerik:GridClientSelectColumn>

<telerik:GridTemplateColumn>
<ItemTemplate>
    <asp:CheckBox ID="CheckBox1" runat="server" />
</ItemTemplate>
</telerik:GridTemplateColumn>
</Columns>

C#:

protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)

   {

       if (e.Item is GridDataItem)

       {

           GridDataItem grdItem = (GridDataItem)e.Item;

           if (grdItem["ID"].Text == "1")//use your condition.


           {

               // for selecting CheckBox in GridTemplateColumn

               CheckBox chkbox = (CheckBox)grdItem.FindControl("CheckBox1");

               chkbox.Checked = true;

               //for selecting Checkbox in GridSelectColumn

               grdItem.Selected = true;

           }

     }

  }

Also refer this documentationfor accessing cells and rows.
Accessing cells and rows

Thanks,
Princy.