How can I make my webpage run JavaScript code when an ASP.net control is clicked?
Question
I have a web page that uses the ASP.net Tree View web control. As the web page is currently programmed, when the user clicks on a node on the tree view, the page posts back and a C# function executes to handle the event.
Can I make my web page run some Javascript code and not post back when a tree view node is clicked?
Suppose my page looks like the one below. 假设我的页面如下图所示。 How can I make it so that clicking on node_A is handled by Javascript client-side instead of C# server-side?
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm2.aspx.cs" Inherits="WebApplication3.WebForm2" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<body>
<form id="form1" runat="server">
<div>
<asp:TreeView runat="server" ID="myTreeView">
<Nodes>
<asp:TreeNode Text="node_A" Value="1" />
<asp:TreeNode Text="node_B" Value="2" />
<asp:TreeNode Text="node_C" Value="3" />
</Nodes>
</asp:TreeView>
</div>
</form>
</body>
</html>
2 answers
solution1
2 2010-10-12 19:43:41
Bind a click event on your elements, get the event object and call preventDefault() .
element.onclick = function(e) {
var evt = window.event || e;
evt.preventDefault();
/* Your code */
}
jQuery shortcut
$("element").click(function(e){ e.preventDefault(); });
solution2
0 2010-10-12 22:41:32
Did you try:
EnableViewState="False"
or
can you remove the runat server ?
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