c# - Hilighting the current page in an asp.net 3.5 master page -

-

in project master page contains repeater that's used menu xml file data source repeater.

<asp:repeater id="admin_menus" runat="server">     <headertemplate><div id="navmenu"><ul></headertemplate>     <footertemplate>|</ul></div></footertemplate>     <itemtemplate>         |<li>         <a href="<%# databinder.eval(container.dataitem, "url")%>"             class="link6" id="<%# databinder.eval(container.dataitem, "id")%>">                <strong>                    <%# databinder.eval(container.dataitem, "title")%>                </strong>          </a>         </li>     </itemtemplate> </asp:repeater>

urls in xml file 

<menuitems>     <item id="1" url="employee.aspx" title="employee" description="employee" />     <item id="2" url="location.aspx" title="location"  description="location" /> </menuitems>

here want change css style of current page in menu.

one solution can opt handle itemcreated event of <asp:repeater> control. need add event handler:

in .master markup:

    <asp:repeater id="admin_menus" runat="server" onitemcreated="admin_menus_itemcreated">         <headertemplate>             <div id="navmenu">                 <ul>         </headertemplate>         <footertemplate>             |</ul></div></footertemplate>         <itemtemplate>             |<li runat="server" id="hyperlink"><a href="<%# databinder.eval(container.dataitem, "url")%>" class="link6" id="<%# databinder.eval(container.dataitem, "id")%>">                 <strong>                     <%# databinder.eval(container.dataitem, "title")%></strong> </a></li>         </itemtemplate>     </asp:repeater>

in .master.cs codebehind:

protected void admin_menus_itemcreated(object sender, repeateritemeventargs e) {     // ensure itemcreated not null, first 1 (header?) gets      // returned null     if (e.item.dataitem != null)     {         // extract "url" attribute xml that's being used          // databinding particular row, via casting down          // ixpathnavigable concrete type of e.item.dataitem isn't available         // us.         var currenturl = ((ixpathnavigable)e.item.dataitem).createnavigator().getattribute("url", "");          if (request.url.pathandquery.contains(currenturl))         {             // adds background color of "red" selected              // menu item. entirely                             var hyperlink = (htmlgenericcontrol) e.item.findcontrol("hyperlink");             hyperlink.style.add(htmltextwriterstyle.backgroundcolor, "red");         }     } }

note i've added runat="server" id="hyperlink" <li> tag in itemtemplate code in itemcreated handler can find style it.


Comments

Post a Comment

Popular posts from this blog

javascript - Enclosure Memory Copies -

-
function myclass() { //lots , lots of vars , code here. this.bar = function() { //do numerous enclosed myclass vars } this.foo = function() { alert('hello'); //don't enclosed variables. } } each instance of myclass gets own copy of bar , foo, why prototyped methods use less memory. however, know more memory use of inner methods. it seems obvious me (1) below must true. agree? not distinct myclass instances have own distinct copies of bar, must have own distinct copies of myclass enclosure. (or else how bar method keep myclass variables straight on per instance basis?) now (2) question i'm after. since inner foo method doesn't use in myclass enclosure natural qustion is: javascript smart enough not keep myclass enclosure in memory use of foo? this depend entirely on implementation not language. naive implementations keep far more around others. answer true e.g. v8 (chrome's js engine) may not true spider...
Read more

php - Replacing tags in braces, even nested tags, with regex -

-
example preg_replace('/\{[a-za-z.,\(\)0-9]+\}/', 'replaced', 'lorem ipsum dolor sit {tag1({tag2()})}, consectetur adipiscing elit.'); the result: lorem ipsum dolor sit {tag1(replaced)}, consectetur adipiscing elit. question as can see "tag2" has been replaced, want replace "tag1" know how can this? (in cases might this: {tag1({tag2({tag3()})})}) , on.) btw using preg_replace_callback, easier show preg_replace here site can test code: http://www.spaweditor.com/scripts/regex/index.php you need add curly braces character set. here's pattern used: /\{[a-za-z.,\(\)\{\}0-9]+\}/ and here result: "lorem ipsum dolor sit replaced, consectetur adipiscing elit."
Read more