protected void btnDelete_Click(object sender, EventArgs e)
{
data.Post_Delete(Convert.ToInt32(HfDeleteID));
GridView1.DataSource = data.Post_SelectAdmin();
GridView1.DataBind();
StringBuilder sb = new StringBuilder();
sb.Append(@"<script type='text/javascript'>");
sb.Append("alert('Xóa thành công');");
sb.Append("$(document).ready(function(){$('#deleteModal').modal('hide');});");
sb.Append(@"</script>");
ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "delHideModalScript", sb.ToString(), false);
}