How to get value from UserControl of Telerik RadGrid inside DataBound Event and Insert Event

Question

I'm using telerik grid, here I've placed UserControl at RadGrid inside GridTemplateColumn something Like this

    <telerik:GridTemplateColumn UniqueName="HardCoded" HeaderText="HardCoded" AllowFiltering="true"
                DataField="AccountDesc">
                <ItemTemplate>
                    <asp:Label ID="HardCoded" runat="server" Text='<%# Bind("HardCoded") %>'></asp:Label>
                </ItemTemplate>
                <EditItemTemplate>
                    <UserCtrl:UserCtrl runat="server" ID="lbl" />
                </EditItemTemplate>
                <InsertItemTemplate>
                  <UserCtrl:UserCtrl runat="server" ID="lbl" />                        
                </InsertItemTemplate>
                </telerik:GridTemplateColumn>

here

here is my UserControl Combo Code

<telerik:RadComboBox runat="server" ID="HardCoded" >
    <Items>
        <telerik:RadComboBoxItem Value="1" Text="Member" Selected="true" />
        <telerik:RadComboBoxItem Value="2" Text="Employee" />
        <telerik:RadComboBoxItem Value="3" Text="All" />
    </Items>
</telerik:RadComboBox>

inside databound Event I just want to set Selected Value if I press the Edit Button on grid. Here is my code of DataBound Event

  protected void RadGrid1_OnItemDataBound(object sender, Telerik.Web.UI.GridItemEventArgs e)
        {
            if (e.Item.IsInEditMode)
            {
                   GridEditableItem editableItem = e.Item as GridEditableItem;
                    RadComboBox HardCoded = editableItem["HardCoded"].Controls[0] as RadComboBox;
                  // I've also tried 
 RadComboBox HardCoded = (RadComboBox)e.Item.FindControl("HardCoded");//it also didn't work

            }
    }

Here I always get the error of object reference not set to an instance of an object as It is unable to find My UserControl RadCombo

similarly if I want to get value inside of Insert event I'm unable to find my combo here is my code

    protected void RadGrid1_InsertCommand(object sender, Telerik.Web.UI.GridCommandEventArgs e)
    {
  string HardCoded = ((RadComboBox)ii["HardCoded"].FindControl("HardCoded")).SelectedValue;
   }

similar exception of object reference not set

sly sly · Accepted Answer · 2016-09-07T18:41:48

Instead of using GridEditableItem in the OnItemDataBound event handler, use GridEditFormItem as shown below:

protected void RadGrid1_OnItemDataBound(object sender, GridItemEventArgs e)
{
    if (e.Item is GridEditFormItem && e.Item.IsInEditMode)//the grid is about to Edit.
    {
        GridEditFormItem item = (GridEditFormItem)e.Item;
        RadComboBox combo = (RadComboBox)item.FindControl("HardCoded");
        combo.SelectedValue = "Something";
    }
}

How to get value from UserControl of Telerik RadGrid inside DataBound Event and Insert Event

1 Answers