linkbutton

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 following stack trace [System.ArgumentException: Untrapped Exception: Invalid postback or callback

Why when I set enabled=false on a button does it not render correctly in Firefox? Instead of graying out the link it is still blue. [UPDATE] ASP.net already removes such tags on the link so the only thing that is needed is to grey out he link. In other words a CSS style change not a functionality change. The following effectively resolved the disabled buttons not showing up as grayed out in firefox and google chrome. I put this into my style sheet and now all my link buttons render correctly. a[disabled]{ color:Grey !important; text-decoration:none !important; } a[disabled] { color:Grey; text

I'm constructing a LinkButton from my codebehind, and I need to assign the onclick to a method, and pass a parameter with it too. I have this so far: LinkButton lnkdel = new LinkButton(); lnkdel.Text = "Delete"; The method I want to pass it to looks like this: protected void delline(string id) { } Well you can't pass it to that method, you need to assign the click event delegate to a method capable of handling it. Like this: public void DynamicClick(object sender, EventArgs e) { // do something } Assign the click event like any event: lnkdel.Click += new EventHandler(DynamicClick); If you want

I am binding link button with title data in aspgridview and also binding hidden label which holds the ID value. when user click on this link button I would like to access the ID value. This I need because, if user logs in then only I popup detail window else alert message to login for details. in lnkTitle_Click() event I am trying to access the selected row to find the label control. GridViewRow grdSelRow = GridView1.SelectedRow; Label lblID = (Label)grdSelRow.FindControl("lblID"); But I am getting grdSelRow as null. How to get the selected row when click on linkbutton of gridview? The problem

i want to use href='News.aspx?id=<%#Eval("id")%>' in linkbutton but it is dosent work pleas help me You could use the following: <a href="News.aspx?id=<%#Eval("id")%>">Click me</a> or if you have a LinkButton: <asp:LinkButton runat="server" PostBackUrl='<%# string.Format("~/News.aspx?id={0}", Eval("id")) %>' Text="Click me" /> 来源： https://stackoverflow.com/questions/9348006/href-news-aspxid-evalid-not-work-in-linkbutton-asp-net