触发特定事件的ajax加载程序 [英] ajax loader for particular event fired

问题描述

//其实我服用Telerik的：radgrid控件来显示用户information.at的Telerik的顶部：radgrid控件addnew_link_button有没有通过点击链接按钮，将扩大在Telerik的一种形式：radgrid控件中，我们必须进入一个telerik的详细信息：RadComboBox i binded groups.this telerik：radgrid在更新面板中如下所示

 <   telerik：RadAjaxManager     ID   =  RadAjaxManager1    runat   =  server >  
 <   AjaxSettings  >  
 <   telerik：AjaxSetting     AjaxControlID   =  rgdUsrManager >  
 <   UpdatedControls  >  
 <跨度类= 代码关键字 ><  <跨度类= 代码leadattribute> Telerik的：AjaxUpdatedControl  <跨度类=code-attribute>   ControlID   =  rgdUsrManager    /  >  
 
 <   / UpdatedControls  >  
 <   / telerik：AjaxSetting  >  

//当我选择telerik中的组时：RadComboBox我被解雇了下面的CmbUGrp_SelectedIndexChanged事件

 <   telerik：RadComboBox     runat  < span class =code-keyword> =  server    ID   =  CmbUGrp     宽度  =  150px   皮肤  =  Windows7 < span class =code-attribute> 
   
    < span class =code-attribute>                                                             DropDownWidth  < span class =code-keyword> =  200px   高度  =  200px    AutoPostBack   =  true      CausesValidation   =  false  
   
                                                               SelectedValue   ='  <％ #Eval（  GroupID）％> '        DataSourceID   =  DS_Groups        DataTextField   = < span class =code-keyword> GroupName   < span class =code-attribute> DataValueField   =  GroupID  
   
                                                                                   AppendDataBoundItems   =  true      OnSelectedIndexChanged   =  CmbUGrp_SelectedIndexChanged >  

//所以我的问题是网格在更新面板中，这就是为什么当CmbUGrp_SelectedIndexChanged事件触发它时没有显示加载符号...所以我需要放置ajax loader，而该事件触发它是可能的.. ...

解决方案

 <   telerik：RadAjaxManager     ID   =  RadAjaxManager1    runat   = 服务器 >  
 <   AjaxSettings  >  
 <   telerik：AjaxSetting     AjaxControlID   =  rgdUsrManager  >  
 <   UpdatedControls  >  
 <   telerik：AjaxUpdatedControl     ControlID   =   rgdUsrManager    LoadingPanelID  < span class =code-keyword> =  rgdUsrManagerLoadingPanel    /  >  
 
 <   / UpdatedControls  >  
 <   / telerik：AjaxSetting  >  
 
 <   telerik：AjaxSetting     AjaxControlID   =  rgdsecUsers >  
 <   UpdatedControls  >  
 <   telerik：AjaxUpdatedControl     ControlID   =  rgdsecUsers    /  >  
 
 <   / UpdatedControls  >  
 <   / telerik：AjaxSetting  >  
 <   / AjaxSettings  >  
 <   / telerik：RadAjaxManager  >  
 <   Telerik的：RadAjaxL oadingPanel     ID   =  rgdUsrManagerLoadingPanel    runat   =  server   皮肤  = 默认 >  
 
 <跨度类= 代码关键字><  <跨度类= 代码leadattribute> / Telerik的：RadAjaxLoadingPanel  <跨度类= 代码关键字>>  

//Actually i am taking telerik:radgrid to display users information.at the top of the telerik:radgrid addnew_link_button is there by clicking on the link button it will expand a form in the telerik:radgrid in that we have to enter details for one telerik:RadComboBox i binded groups.this total telerik:radgrid is in update panel like below

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
        <AjaxSettings>
            <telerik:AjaxSetting AjaxControlID="rgdUsrManager">
                <UpdatedControls>
                    <telerik:AjaxUpdatedControl ControlID="rgdUsrManager" />

                </UpdatedControls>
            </telerik:AjaxSetting>

//when ever i selected the group in telerik:RadComboBox i fired an CmbUGrp_SelectedIndexChanged event like below

<telerik:RadComboBox runat="server" ID="CmbUGrp"  Width="150px" Skin="Windows7"

                               DropDownWidth="200px" Height="200px" AutoPostBack="true"  CausesValidation="false"

                              SelectedValue='<%# Eval("GroupID") %>'   DataSourceID="DS_Groups"   DataTextField="GroupName" DataValueField="GroupID"

                                        AppendDataBoundItems="true"  OnSelectedIndexChanged="CmbUGrp_SelectedIndexChanged">

//so my problem was the grid is in update panel so thats why when ever the CmbUGrp_SelectedIndexChanged event fired it is not showing the loading symbol...so i need to put ajax loader while that event fired is it possible.....

解决方案

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
        <AjaxSettings>
            <telerik:AjaxSetting AjaxControlID="rgdUsrManager">
                <UpdatedControls>
                    <telerik:AjaxUpdatedControl ControlID="rgdUsrManager" LoadingPanelID="rgdUsrManagerLoadingPanel" />

                </UpdatedControls>
            </telerik:AjaxSetting>

              <telerik:AjaxSetting AjaxControlID="rgdsecUsers">
                <UpdatedControls>
                    <telerik:AjaxUpdatedControl ControlID="rgdsecUsers" />

                </UpdatedControls>
            </telerik:AjaxSetting>
            </AjaxSettings>
            </telerik:RadAjaxManager>
            <telerik:RadAjaxLoadingPanel ID="rgdUsrManagerLoadingPanel" runat="server" Skin="Default">

            </telerik:RadAjaxLoadingPanel>

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