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Problem MasterPage with RadAjaxManager

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Ajax

This is a migrated thread and some comments may be shown as answers.

erik vazquez asked on 10 Mar 2011, 09:30 PM

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Hi
I have a problem with MasterPage and RadAjaxManager because when the RadGrid (in contentPage) fires an autoPostBack, the RadAjaxManager never catch de event and the whole page is refreshed. I already saw some examples where show how to use MasterPage with RadAjaxManager, but I can´t get do it in my project.

MasterPage:

<%@ Master Language="C#" AutoEventWireup="true" CodeBehind="Maestra.master.cs" Inherits="sicoge.Maestra.Maestra" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >

<head id="Head1" runat="server">

<title>Página sin título</title>

<asp:ContentPlaceHolder ID="head" runat="server">

</asp:ContentPlaceHolder>

<link rel="Stylesheet" type="text/css" href="../common/master.css"/>

<style type="text/css">

.style1

{

width: 100%;

}

</style>

</head>

<body>

<form id="form1" runat="server">

<div>

<asp:LoginStatus ID="LoginStatus1" runat="server"

LogoutPageUrl="~/webForms/login.aspx" LogoutAction="RedirectToLoginPage"

onloggingout="LoginStatus1_LoggingOut" LoginText="Iniciar sesión."

LogoutText="Cerrar sesión."/>

<asp:LoginStatus ID="LoginStatus2" runat="server"

LoginImageUrl="~/images/log_in.png" LoginText=""

LogoutAction="RedirectToLoginPage" LogoutImageUrl="~/images/logout.png"

LogoutPageUrl="~/webForms/login.aspx" LogoutText=""

onloggingout="LoginStatus2_LoggingOut" />

<asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">

</asp:ContentPlaceHolder>

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">

</telerik:RadAjaxManager>

<telerik:RadScriptManager ID="RadScriptManager1" runat="server">

</telerik:RadScriptManager>

<telerik:RadSkinManager ID="RadSkinManager1" runat="server" Skin="Default">

</telerik:RadSkinManager>

<telerik:RadFormDecorator ID="RadFormDecorator1" Runat="server"

Skin="Default" />

</div>

</form>

ContentPage :

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="MisSolicitudes.aspx.cs" MasterPageFile="~/Maestra/Maestra.Master" Inherits="sicoge.webForms.MisSolicitudes" Title="Mis Solicitudes" %>

<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>

<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">

<link rel="Stylesheet" type="text/css" href="../common/Forms.css" />

</asp:Content>

<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">

<telerik:RadAjaxManagerProxy ID="RadAjaxManagerProxy1" runat="server">

<AjaxSettings>

<telerik:AjaxSetting AjaxControlID="GrdSolicitudes">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="RadAjaxPanel1" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</telerik:RadAjaxManagerProxy>

<telerik:RadAjaxPanel ID="RadAjaxPanel1" runat="server">

<telerik:RadGrid ID="GrdSolicitudes" runat="server"

AllowFilteringByColumn="True" AllowPaging="True" DataSourceID="SqlDataSource1"

GridLines="None" ShowGroupPanel="True" Culture="Spanish (Mexico)"

Width="906px">

<HeaderContextMenu EnableImageSprites="True" CssClass="GridContextMenu GridContextMenu_Default"></HeaderContextMenu>

<GroupPanel Text="Arrastre y suelte aqui una columna para agrupar.">

</GroupPanel>

<MasterTableView AutoGenerateColumns="False" DataKeyNames="IdSolicitud" DataSourceID="SqlDataSource1"

NoMasterRecordsText="No hay registros para mostrar.">

<CommandItemSettings ExportToPdfText="Export to Pdf"></CommandItemSettings>

<RowIndicatorColumn>

<HeaderStyle Width="20px"></HeaderStyle>

</RowIndicatorColumn>

<ExpandCollapseColumn>

<HeaderStyle Width="20px"></HeaderStyle>

</ExpandCollapseColumn>

<Columns>

<telerik:GridBoundColumn DataField="IdSolicitud" DataType="System.Int32"

HeaderText="IdSolicitud" ReadOnly="True" SortExpression="IdSolicitud"

UniqueName="IdSolicitud" Visible="False">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="Folio" HeaderText="Folio"

SortExpression="Folio" UniqueName="Folio">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="IdSeccion" DataType="System.Int32"

HeaderText="IdSeccion" SortExpression="IdSeccion" UniqueName="IdSeccion">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="IdEstadoSolicitud" DataType="System.Int32"

HeaderText="IdEstadoSolicitud" SortExpression="IdEstadoSolicitud"

UniqueName="IdEstadoSolicitud">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="FechaSolicitud" DataType="System.DateTime"

HeaderText="FechaSolicitud" SortExpression="FechaSolicitud"

UniqueName="FechaSolicitud">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="Observaciones" HeaderText="Observaciones"

SortExpression="Observaciones" UniqueName="Observaciones">

</telerik:GridBoundColumn>

</Columns>

</MasterTableView>

<GroupingSettings GroupContinuedFormatString="... continuación de la pág anterior. "

GroupContinuesFormatString=" Continua en la siguiente pág."

GroupSplitDisplayFormat="Mostrando {0} de {1} elementos." />

<ClientSettings AllowDragToGroup="True">

<Selecting AllowRowSelect="True" />

<Scrolling AllowScroll="True" UseStaticHeaders="True" />

<Resizing AllowColumnResize="True" />

</ClientSettings>

</telerik:RadGrid>

</telerik:RadAjaxPanel>

And ContentPage CS:

using System;

using System.Collections;

using System.Configuration;

using System.Data;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.HtmlControls;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Xml.Linq;

using Telerik.Web.UI;

namespace sicoge.webForms

{

public partial class MisSolicitudes : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

RadAjaxManager ajm = this.Master.FindControl("RadAjaxManager1") as RadAjaxManager;

ajm.AjaxSettings.AddAjaxSetting(GrdSolicitudes, RadAjaxPanel1);

}

The exception that it fires is: System.NullReferenceException: Referencia a objeto no establecida como instancia de un objeto.

Línea 20: {

Línea 21: RadAjaxManager ajm = this.Master.FindControl("RadAjaxManager1") as RadAjaxManager;

Línea 22: ajm.AjaxSettings.AddAjaxSetting(GrdSolicitudes, RadAjaxPanel1);

Línea 23: }

Línea 24:

Also, when I put a RadAjaxManagerProxy in the contentPage and I try to configure it (Configure Ajax Manager), nothing controls are showed in the "Select the controls that will initiate AJAX request" panel and I cant configure anything.

1 Answer, 1 is accepted

answered on 11 Mar 2011, 10:36 AM

MasterPage.zip

Hello Erik,

Attached to this message is a sample working project which handles the desired functionality. Examine it and see if it works for you.

Greetings,
Pavlina
the Telerik team

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