How to Clear the Gridview using asp.net?

Source code : 


 <asp:GridView ID="GridViewID" runat="server" 
     AllowSorting="true" AutoGenerateColumns="False"

     AllowPaging="true" CellPadding="4" DataKeyNames="DemoId"               EmptyDataText='No Records Found.'

      ForeColor="#333333" HeaderStyle-Font-Bold="true"  ShowFooter="False" Width="100%" PageSize="5">

   <EmptyDataRowStyle BackColor="White" BorderWidth="0px" />

   <PagerSettings Position="TopAndBottom" />

   <RowStyle BackColor="White" ForeColor="Black" />

   <PagerStyle BackColor="White" />

   <HeaderStyle Font-Bold="False" />

 </asp:GridView>

Server-side code:

Private Sub ClearGrid(ByVal gvw As GridView)

       gvw.DataSource = Nothing

            gvw.EditIndex = -1

            gvw.DataBind()

       

    End Sub

Call the method in Page Load:

If (Page.IsPostBack = False) Then

ClearGrid(GridViewID)

End If

Screen shot of clear Gridview when loading the page :