protected void gvBlackList_RowCommand(object sender, GridViewCommandEventArgs e)
{
if(e.CommandName == "Remove")
{
UserDataManager userDataManager = new UserDataManager();
var Arg = e.CommandArgument;
userDataManager.RemoveFromBlackList(Convert.ToInt32(e.CommandArgument));
}
Response.Redirect(Request.RawUrl);
}