linkbutton

问题 in an asp.net page I have a list of Link buttons: <asp:LinkButton ID="LinkButton1" runat="server" OnClick="Link_Click">Link 1</asp:LinkButton> <asp:LinkButton ID="LinkButton3" runat="server" OnClick="Link_Click">Link 2</asp:LinkButton> <asp:LinkButton ID="LinkButton5" runat="server" OnClick="Link_Click">Link 3</asp:LinkButton> I am using them as triggers for an update panel on the site. When a user clicks on a link a control gets loaded on the page. What I want is this: Whne the user clicks

问题 Ok my first post and i hope the title makes sense. I have an updatepanel, and inside it resides a fileupload control with a button to trigger an upload. Beneath that i have a ListView which is databinded in the behind file with a list of files that is uploaded. The updatepanel has a "PostBackTrigger" pointed to the upload button. All of this works just as it should. For each item that is listed, there is a linkbutton which deletes that specific file. That also works as it should BUT here is

问题 Ok my first post and i hope the title makes sense. I have an updatepanel, and inside it resides a fileupload control with a button to trigger an upload. Beneath that i have a ListView which is databinded in the behind file with a list of files that is uploaded. The updatepanel has a "PostBackTrigger" pointed to the upload button. All of this works just as it should. For each item that is listed, there is a linkbutton which deletes that specific file. That also works as it should BUT here is

问题 i want to use an asp:LinkButton , since it looks like a link, yet also has server-side Click handler. But the web-server seems unable to detect if javascript is disabled on the client, and doesn't render into a mechanism that still works. Is it possible to have a link that looks like a link, but has server-side OnClick event handler? Answer The answer is no, but below are some workaround ideas. Accepted the one with non-zero up-votes. 回答1: You could use CSS to style a button to look like a

问题 So I get the exception Invalid postback or callback argument. Event validation is enabled using in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation. With the

问题 I have a "cart" Repeater , where every item has a couple of controls in it. The ones we're focusing on are two DropDownLists , a LinkButton and a TextBox . The lists are on one validation group and the button & textbox are on another. Both lists have an OnSelectedIndexChanged event handler which does some calculations based on the selections in both DropDownLists . Both lists also have AutoPostBack="True" . The button has an OnClick handler which also does some calculations according to the

问题 How do I check which LinkButton is clicked in the Page_Load of the page. This is to avoid calls to service so that it only executes what is present in its event. 回答1: The only thing that should be running in your Page_Load is the code you want to happen always with everyt request, OR have the code that you only want to run once wrapped in a post back check. For example: protected void Page_Load(object sender, EventArgs e) { // Put the all code you need to run with EVERY request here // Then

问题 I have a LinkButton that I need to perform a click on to cause a postback. The actual link target is: javascript:__doPostBack('ctl00$c1$btnRefreshGrid',''); Clicking the link does perform the postback, as verified by a breakpoint in the code-behind. Also pasting javascript:__doPostBack('ctl00$c1$btnRefreshGrid','') in the address bar of the browser works with the same effect. I've tried the following with no effect at all: __doPostBack('ctl00$c1$btnRefreshGrid',''); $('#ctl00$c1

问题 I am having a problem with dynamic link buttons which I need help with. I am creating a dynamic asp.net table based on records in a datatable. I am also using dynamic linkbuttons. protected System.Web.UI.WebControls.LinkButton lb; protected override void OnInit(EventArgs e) { // Build controls before page load lb = new LinkButton(); lb.Text = "Update Image"; // LinkButton obj for updating record lb.ID = "UpdateImg"; lb.Click += new EventHandler(UpdateImg); this.Controls.Add(lb); base.OnInit(e

问题 I am having a problem with dynamic link buttons which I need help with. I am creating a dynamic asp.net table based on records in a datatable. I am also using dynamic linkbuttons. protected System.Web.UI.WebControls.LinkButton lb; protected override void OnInit(EventArgs e) { // Build controls before page load lb = new LinkButton(); lb.Text = "Update Image"; // LinkButton obj for updating record lb.ID = "UpdateImg"; lb.Click += new EventHandler(UpdateImg); this.Controls.Add(lb); base.OnInit(e