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  1. POasp.net built runtime Menu with offsite link
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    <p>I hope you can help me. First, I'd like to tell you I am a desktop app guy, which means I mostly develop my apps in desktop. Now I am trying to build some web app but it leads me to am not sure if confusion or just am doing it wrong.</p> <p>I have a code here that it <strong>populates a menu at runtime</strong>. Runtime because they the menu items are populated at code behind and the items are fetched in database.</p> <p>here's the code behind:</p> <pre><code>protected void Page_Load(object sender, EventArgs e) { if (!Page.IsPostBack) { Menus menu = new Menus(); imgMainLogo.ImageUrl = VARIABLES.MainLogoImage; menu.PopulateMenuControl(ref mainmenu, 2); menu.PopulateMenuControl(ref footermenu, 9); } else { System.Diagnostics.Debug.WriteLine("link: " + footermenu.SelectedValue); if (footermenu.SelectedValue != null) { Response.Redirect(footermenu.SelectedValue, true); } } } </code></pre> <p>and the code in PopulateMenuControl</p> <pre><code>public void PopulateMenuControl(ref Menu menucontrol, int menuparentid) { //menucontrol.Items.Clear(); foreach (MenuFields mf in GetMenusByParentID(menuparentid)) { MenuItem menuitem = new MenuItem(mf.MenuName, ReplaceSystemNameLink(mf.Link)); menucontrol.Items.Add(menuitem); foreach (MenuFields cmf in GetMenusByParentID(mf.MenuID)) { MenuItem childmenuitem = new MenuItem(cmf.MenuName, ReplaceSystemNameLink(cmf.Link)); menuitem.ChildItems.Add(childmenuitem); } } } </code></pre> <p>So <code>Page.IsPostBack</code> is the very basic thing I should learn when doing something in a page. But the problem here is, one of my menu item in "footermenu" has an offsite link, and it should redirect the page into my blog.. but what's happening was, <code>footermenu.SelectedValue</code> is empty once I clicked on the "Blog" link. </p> <p>What's going on?</p> <hr> <p>UPDATE</p> <p>I have updated the code still stuck, the SelectedValue is still empty</p> <pre> protected void Page_Load(object sender, EventArgs e) { System.Diagnostics.Debug.WriteLine("Page_Load IsPostBack: " + Page.IsPostBack.ToString()); if (Page.IsPostBack) { if(footermenu.SelectedValue != null) { System.Diagnostics.Debug.WriteLine("link: " + footermenu.SelectedValue); } } } protected void Page_Init(object sender, EventArgs e) { System.Diagnostics.Debug.WriteLine("Page_Init IsPostBack: " + Page.IsPostBack.ToString()); if (!Page.IsPostBack) { Menus menu = new Menus(); imgMainLogo.ImageUrl = VARIABLES.MainLogoImage; menu.PopulateMenuControl(ref mainmenu, 2); menu.PopulateMenuControl(ref footermenu, 9); } } </pre>
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