How to select current menu in master pages?

In my web app (asp.net C#) I have menus as "All", "Education", "Fun", "Comedy". I want when I select All then it should be displayed as current menu, for which I have a CSS class current.

In case of WebUserControls I can do it easily by passing parameter of current page to select as below:

mywebpage.aspx

<uc:header ID="header1" runat="server" selectedMenu="comedy" />

header.ascx (code (c#))

public string selectedMenu
{
    get { return strSelected; }
    set { strSelected = value; }
}

header.ascx (html)

<ul>
   <li><a href="/all/" title="All Videos" <%if (strSelected == "all"){%>class="current"<%} %>><span>All</span></a></li>
   <li><a href="/fun/" title="Fun Videos" <%if (strSelected == "fun"){%>class="current"<%} %>><span>Fun</span></a></li>
   <li><a href="/comedy/" title="Comedy Videos" <%if (strSelected == "comedy"){%>class="current"<%} %>><span>Comedy</span></a></li>
</ul>

When I'll pass comedy from my webpage to usercontrol then it will select comedy menu. I want to implement the same kind of functionality in case of master pages, could anyone tell me how to achieve this type of facility for master pages.

One way what I feel is to pass a query string parameter http://example.com/all/?select=all, I'll check on master page_load function if select parameter is "all" or fun or comedy then select corresponding menu. But this is not good, because I don't开发者_StackOverflow want to add an extra query string parameter to my URLs.

Please tell me how to solve this issue.

Thanks

You can access master page properties from your content page after casting the master to the correct type:

public class MyMasterPage : MasterPage
{
    public string MyMenuProperty { get; set; }

    protected void Page_PreRender(object sender, EventArgs e)
    {
        if (MyMenuProperty == "comedy")
        {
            /* do your menu stuff */
        }
    }
}

public class MyContentPage : Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        var myMaster = Page.Master as MyMasterPage;
        if (myMaster != null)
        {
            myMaster.MyMenuProperty = "comedy";
        }
    }

One way i have done simular in the past is add this to the page derivatives of any content pages:

<%@ MasterType VirtualPath="~/YourMaster.master" %>

Then in the master i exposed this:

 private PageTypes currentPageType;

public PageTypes CurrentPageType
{
    get { return currentPageType; }
    set { currentPageType = value; }
}

On this job this was used so the master knew what type of page it was on and therefore changed a few things, colours, controls etc. So from a contents pageload i did

Master.CurrentPageType = PageTypes.System;

One thing to note however, VS tends to moan about the MasterType derivative until you do a rebuild all.

I'm thinking that maybe a completely different approach might be easier to implement and maintain.

How about you just parse the URL in your header.ascx?

For example:

<li><a href="/all/" title="All Videos" runat="server" class='<%= Request.Url.ToString().Contains("/all/") ? "current" : "" %>' ><span>All</span></a></li>

That way, you won't have to worry about setting properties, accessing/casting master pages etc...

Hai prashant,

I had the same issue a month back and i posted in stack overflow check this one it may help you Find a UnorderedList <UL> control inside a master page from a content page in asp.net