ASP.net c# page_load firing twice?
protected void Page_Load(object sender, EventArgs e)
{
string menuIDdata = Page.Request.QueryString["mid"];
menuID = 0;
// Check the user is allowed here
if (!Roles.IsUserInRole("Admin"))
{
Response.Redirect("../default.aspx");
}
// Get the menu ID
if (int.TryParse(menuIDdata, out menuID))
{
menuID = int.Parse(menuIDdata);
}
else
{
menuID = 0;
}
debugLabel.Text = "WORKING";
var selectedMenu = this.Page.FindControl("mnu" + menuID) as Panel;
selectedMenu.CssClass = "navButtonO";
}
And on the page:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="admin.aspx.cs" Inherits="*******._Default" title="Administrat开发者_如何学Pythonion" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="mainHead" runat="server" >
<title>Administration</title>
<link rel="Stylesheet" href="../style/admin.css" />
</head>
<body>
<form id="mainForm" runat="server">
<div class="topMenu">
<asp:Panel id="mnu0" runat="server" class="navButton">
<a href="admin.aspx" class="navLink">Admin Home</a>
</asp:Panel>
<asp:Panel id="mnu1" runat="server" class="navButton">
<a href="admin.aspx" class="navLink">User Manager</a>
</asp:Panel>
<asp:Panel id="mnu2" runat="server" class="navButton">
<a href="admin.aspx" class="navLink">Products</a>
</asp:Panel>
</div>
<br /><br />
<div class="subMenu">
<a href="products.aspx" class="subLink">Products</a> <a href="productCats.aspx" class="subLink">Categories</a>
</div>
<br /><br />
Welcome to the Admin
<br /><br />
<asp:label id="debugLabel" runat="server" />
</form>
</body>
</html>
The debug label refuses to change it's value, I'm expecting it to show "WORKING" as it's text, what am I doing wrong?
Update:
When attempting to build I get 3 errors:
Error 1 Type '******._Default' already defines a member called 'Page_Load' with the same parameter types\Default.aspx.cs 12 24
x3 but on different pages
EDIT:
Ok here you go. You have a Default.aspx page that the Admin-Page most probably got copied from.
public partial class _Default : System.Web.UI.Page
So if you need some base functions from this Default-Page you need to inherit from this Page. Then change it like this:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="admin.aspx.cs" Inherits="_Default" title="Administration" %>
If that is not the case... (Asuming that the class of the pages is called like its file...)
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="admin.aspx.cs" Inherits="Admin" title="Administration" %>
Change your code...
// Get the menu ID
if (!int.TryParse(menuIDdata, out menuID))
{
menuID = 0;
}
Since TryParse is returning the parsed integer with the output paramter.
Put a debugger on the code and you would see that the code never reaches the " debugLabel.Text = "WORKING"; " line of code because of some exception happening before it. There's absolutely no problem with the way you are assigning the text to label
try
{
string menuIDdata = Page.Request.QueryString["mid"];
menuID = 0;
// Check the user is allowed here
if (!Roles.IsUserInRole("Admin")) Then
{
Response.Redirect("../default.aspx");
}
// Get the menu ID
if (int.TryParse(menuIDdata, out menuID))
{
menuID = int.Parse(menuIDdata);
}
else
{
menuID = 0;
}
}
catch { }
debugLabel.Text = "WORKING";
var selectedMenu = this.Page.FindControl("mnu" + menuID) as Panel;
selectedMenu.CssClass = "navButtonO";
This line:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="admin.aspx.cs" Inherits="*******._Default" title="Administration" %>
Confuses me. Do you have a file called admin.aspx.cs with a public class called *******._Default? That is a very unusual convention. Perhaps your codebehind reference or class name that this page inherits from is incorrect.
加载中,请稍侯......
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