updatepanel

问题 I've got a web application working using VB and Ajax. I'm using updatepanels to avoid the irritating "flicker" on postbacks to the server. I would like to have a button control defined within the updatepanel itself (tried moving it outside and got some catastrophic error, so left it there) that makes the current panel not visible and a sibling panel visible. This works with the exception that the button must be clicked twice. Not double clicked, but clicked once than clicked again. In setting

问题 I've have a formview that is designed to update it's datasource each time a text_changed event or dropdown list has been changed. On every text_changed event and equivalent for other controls I call the formView.UpdateItem method and this causes the form to lose focus from the control I have tabbed down to. I've tried to implement this method but I get unknown runtime errors after I have tried to select a control for the second time. I can't help but think there is another way of dealing with

问题 I am working on asp.net web application. In one Page I have two asp buttons. I want to display them in one condition otherwise I don't want to display them. So I'm trying to do the same like this. But Its not working. I can't find the reason behind it. Please tell me where is the issue. To Hide Buttons if (!IsPostBack) { ButtonReplaceId.Style.Add("display", "none"); ButtonAssociateRules.Style.Add("display", "none"); } To display buttons protected void ApplyAssociation(object sender, EventArgs

问题 I've read through the net but haven't found a solution to the following problem. I have this example page (_ScriptManager.aspx) with a ScriptManager , an UpdatePanel , a MultiView with two Views and two LinkButtons two switch between the views. The second view contains some functionality which I want to load a JavaScript file for (_ScriptManager.js). Since I don't know whether the user will ever visit view 2 I don't want to include the javascript file statically on for every request. I only

问题 Hi I found code similiar to the following online. It's seems really great for getting a button buried in a repeater control to trigger a full cycle back to the server. <asp:ScriptManager ID="ScriptManager1" runat="server"> </asp:ScriptManager> <asp:UpdatePanel ID="UpdatePanel1" runat="server"> <ContentTemplate> <%=DateTime.Now.ToString() %> </ContentTemplate> <Triggers> <asp:PostBackTrigger ControlID="HiddenButton" /> </Triggers> </asp:UpdatePanel> <!--Make a hidden button to treat as the

问题 I am using bootstrap datepicker which is working inside update panel if i write Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler); function EndRequestHandler(sender, args) { $('.form-control.reqByDate').datepicker({ format: "dd-M-yyyy", changeMonth: true, changeYear: true, autoclose: true }); }; But I am also using : Response.write("<script>alert('something to alert ')</script>") ; (ignore syntax as it works fine without the endrequesthandler) which stops working

问题 I have a TextArea control in my content page which is inside an UpdatePanel: <asp:UpdatePanel runat="server" ClientIDMode="Static" ID="upTaskDetailRight" UpdateMode="Conditional"> <ContentTemplate> <div style="width: 98%; padding-bottom: 10px;" class="brClear"> <div style="width: 98%; height: 120px;"> <textarea id="taskNotes" runat="server" class="taskNotes" style="width: 100%; height: 100%; scrollbar-base-color: #A0A0A0; scrollbar-base-color: #A0A0A0; scrollbar-3dlight-color: #A0A0A0;

问题 I have a user control which has an update panel I am trying to execute a client side script from an async postback from a button inside the updatepanel I am using ScriptManager.RegisterStartupScript to execute the script but it never gets executed The scriptmanager proxy is not inside the user control itself it is in the page containing the user control Is there any way round this problem? Script registration: ScriptManager.RegisterStartupScript( this, this.GetType(), "CloseEdit",

问题 Is there a way to determine if an <asp:UpdatePanel /> has performed an Ajax postback similar to how we can use... if(!Page.IsPostBack) { ...snip } ... to determine if a postback from a button submit is taking place. I'm trying to detect Ajax requests from jQuery, but it's picking up UpdatePanel requests as well which I want to exclude eg... if (Request.IsAjaxRequest() && !Page.IsUpdatePanelPostback) { // Deal with jQuery Ajax } 回答1: I don't know if this will work any better than your solution

问题 I use update panels all the time when i wanna to update specific part of my page but recently i face performance problems ( i mean it 's slow in rendering the intended control and sometimes it doesn't work and need multiple click to work !! so my question is : Is the page method could be considered as an efficient alternative to the update panel and do the ajax magic ? What are the other alternatives? please if possible a simple example to clarify how to replace the update panel using with