int i = clsMob.InsertMobilizationDetails(dsMobilizn.GetXml());
if (i>0)
{
   FillGrid();
   ClearAll();
   string str = "<script>alert('Successfully mobilized the selected employees')</script>";
                 ScriptManager.RegisterStartupScript(Page, Page.GetType(), "Validation Error", str, false);
                 return;
}

public int InsertMobilizationDetails(string xml)
{
    Database_Operations dbo = new Database_Operations("TransMob_InDetails", true);
    dbo.AddParameter("@xmlMob", xml);
    return dbo.ExecuteQuery();  //returns value as 1
}