postback

问题 I am loading text into a textbox through jquery as so: $.ajax({ type: "POST", url: "../myfile.ascx/myfunction", data: "{variable:'" + value + "'}", contentType: "application/json", dataType: "json", success: function (response) { $('input[id$=txtMyTextBox]').val(response.d); } }); this portion works fine, but when I cause the page to postback from other controls I loose the value it had inserted in txtMyTextBox..Now I am using a user control so I have a databind instead of page load. I tried

问题 I am trying to populate a drop down list on partial post back, not sure why it's not working. this works, protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { populatemyDropDownList(); } this doesn't work, protected void Page_Load(object sender, EventArgs e) { if (IsPostBack) { populatemyDropDownList(); } Scenario * I click on button_1 in UpdatePanel_1, which then triggers a partial post back (no page refresh) and tries to populate DropDownList which is in UpdatePanel_2*

问题 I am writing a custom HTTP handler to provide an edit form for a grid using existing user controls. Basically, my handler creates the page, form, header, and other controls necessary to be able to render the existing user controls properly and at the end of ProcessRequest, I use Server.Execute to execute the page that was dynamically created. I am doing this because the solution where this resides is a user controls project and there are no pages, nor can we add any. This needs to be reusable

问题 i have gridview that uses template and i have two buttons inside the template. Here is my code for gridview: <asp:GridView ID="gvtransaction" runat="server" AutoGenerateColumns="False" Width="60%"> <Columns> <asp:TemplateField HeaderText=""> <ItemTemplate> <asp:Label ID="lblid" runat="server" Text='<%# Bind("id") %>' Visible="false"></asp:Label> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Consumer"> <ItemTemplate> <asp:Label ID="lblfirstname" runat="server" Text='<%#

问题 I have a form written in ASP.NET MVC4/Razor. The form post works perfectly well in Firefox and Chrome, but for some reason in Internet Explorer 10 and 11, the "Submit" button is unresponsive. (Internet Explorer 9 works also good). This is how my form in the view looks like: <div class="bla"> <table style="width:100%;"> @using (Html.BeginForm("MyAction","MyController", FormMethod.Post, new {id="myID"})) { <thead> <tr> <th class="heading highlight">Enter Registration</th> <th> <span style=

问题 I'm employing a solution similar to the answer of OnclientClick and OnClick is not working at the same time ? How this currently works is that a file is generated and returned to the client, however after the file is returned the button should become active again. so the response contains the file. But the button does not reactivate. I'm not certain if this can be done. Any thoughts? Thanks 回答1: You could set the Id mode of the button to static. Then choose a unique Id for the button.

问题 I have three div div1,div2div3 containing DataList control in each div . When i click on item in DataList1 then DataList2 will be loaded asynchronously which in UpdatePanel of div2 . Problem: When i click on control in DataList2 and try to access the Clicked Control Class using jquery it wont fire the Click event. Any idea? Sample output: Jquery Script: $('.imgOpaLevel2').click(function() { alert("hi"); //not able to get this message when clicked on DataList2 in div2 which is in updatepanel }

问题 Its driving me bit crazy on how to do a PostBack for CheckBoxList. I have an autocomplete textbox that triggers the Javascript (on an item selected) by which I'm adding items to checkboxlist dynamically using Javascript appendChild element from the resource: https://stackoverflow.com/a/3184505/1426121 But as told by the user in the answer, the added item disappears the very next moment, for which I have to do a PostBack (suggested by them). Also as in the comment for the answer, I need to

问题 I have a ListView inside a FormView that, for some strange reason, doesn't fire neither the ItemInsert nor the ItemCommand event. I'm populating the ListView with a generic list. I bind the list to the ListView on the OnPreRenderComplete. <asp:ListView runat="server" ID="lvReferences" DataKeyNames="idReference" OnItemInserting="ContractReferences_Inserting" OnItemDeleting="ContractReferences_Deleting" InsertItemPosition="LastItem" OnItemCommand="ContractReferences_Command" OnItemCreated=

问题 I have many events on a Windows Forms form. I have a feedback label, and I have to write feedbaxk.Text=""; at the beginning of each event. In ASP.NET, I have been using to write it only once in the page_load event which is fired on every postback, but Form Load fires only once. I have tried to search with the title of my question and found following two closest answers: WinForms equivalent of ASP.NET page load event (Bytes) WinForms equivalent of ASP.NET page load event (PC Review) There is