[Solved] Clear the label Text after exporting to excel

[Srinivas Nilagiri]

Hi All,
I have a RadGrid and a lable as shown below.

<telerik:AjaxSetting AjaxControlID="grdOverdue">
        <UpdatedControls>
            <telerik:AjaxUpdatedControl ControlID="grdOverdue"/>
            <telerik:AjaxUpdatedControl ControlID="lblError"/>
        </UpdatedControls>
</telerik:AjaxSetting>
<asp:Label ID="lblError" runat="server" Text="" Visible="false" SkinID="Error"></asp:Label>
    <telerik:RadGrid ID="grdOverdue" runat="server"
            ....
            <CommandItemTemplate>
                    <span style="float:left;margin-left:5px;">
                        <asp:Label ID="lblJobCount" runat="server" Text=""></asp:Label>
                    </span>
                    <span style="float:right;margin-right:5px;">
                       <asp:LinkButton ID="lbExportAll" runat="server" CommandName="ExportToExcel">Export All</asp:LinkButton>&nbsp;&nbsp;  | &nbsp;&nbsp;
                       <asp:LinkButton ID="lbExportSelected" runat="server" CommandName="ExportSelectedToExcel">  Export Selected</asp:LinkButton>
                   </span>
               </CommandItemTemplate>
               ....
</telerik:RadGrid>

and in the grdOverdue_ItemCommand event I am displaying error message if the user has not selected atleast one item in the grid.

protected void grdOverdue_ItemCommand(object sender, Telerik.Web.UI.GridCommandEventArgs e)
    {

        if (e.CommandName == "ExportSelectedToExcel")
        {
            if (selectedJobs.Count == 0)
            {
                lblError.Visible = true;
                lblError.Text = "Please select atleast one job to export.";
            }
            else{
                lblError.Visible = false; // this is not working.
            }

        }
    }

Please suggest how to clear the error message and make the label invisible? Thank you.

[Princy]

Hello Srinivas,

I tried the same scenario at my end and it seems to work. Here's the code that i tried:
c#:

protected void RadGrid1_ItemCommand(object source, GridCommandEventArgs e)
    {
        if (e.CommandName == "ExportSelectedToExcel")
        {
            GridItemCollection selectedJobs = (GridItemCollection)RadGrid1.SelectedItems;
            if (selectedJobs.Count == 0)
            {
                lblError.Visible = true;
                lblError.Text = "Please select atleast one job to export.";
            }
            else
            {
                lblError.Visible = false;
            }
        }
    }

Make sure that the selectedJobs collection count returns a value greater than zero when a selection is made in your grid.

Thanks
Princy.