How to Bind Menus in asp.menu control

Posted by Jayakumars under C# on 3/18/2017 | Points: 10 | Views : 2154 | Status : [Member] [MVP] | Replies : 4

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Hi

How to list collection binded asp.net menu control like DNF site
for ex: Home,articles etc

My Code this here then my list have more records then i bind my asp:menu control
i meet error which i have given below. any one guide how to
assign list menus assign asp:menu control

List<Menus> lstMenus;
<asp:Menu id=mnuid

mnuid.DataSource = lstMenus;
mnuid.DataBind();

This is error

An exception of type 'System.InvalidOperationException' occurred in System.Web.dll but was not handled in user code

Additional information: HierarchicalDataBoundControl only accepts data sources that implement IHierarchicalDataSource or IHierarchicalEnumerable.

Mark as Answer if its helpful to you

Kumaraspcode2009@gmail.com

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Posted by: A2H on: 3/19/2017 [Member] [MVP] Silver | Points: 25

0	You cannot assign items to menu control like we do in Gridview or repeater.You need to loop the list and add items like below foreach (Menus item in lstMenus) { mnuid.Items.Add(new MenuItem(item.MenuName.ToString())); } Sample Code: <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> </head> <body> <form id="form1" runat="server"> <div> <asp:Menu ID="mnuid" runat="server"></asp:Menu> </div> </form> </body> </html> C#: protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { //Sample Data to load the menu items List<Menus> lstMenus = new List<Menus>(); Menus objMenu = new Menus(); objMenu.MenuName = "Menu1"; lstMenus.Add(objMenu); Menus objMenu2 = new Menus(); objMenu2.MenuName = "Menu2"; lstMenus.Add(objMenu2); Menus objMenu3 = new Menus(); objMenu3.MenuName = "Menu3"; lstMenus.Add(objMenu3); //Menu1.DataSource = lstMenus; //Menu1.DataBind(); //loop through the list and add items to menu control foreach (Menus item in lstMenus) { mnuid.Items.Add(new MenuItem(item.MenuName.ToString())); } } } //Class created public class Menus { public string MenuName { get; set; } } Thanks, A2H My Blog Jayakumars, if this helps please login to Mark As Answer. \| Alert Moderator

You cannot assign items to menu control like we do in Gridview or repeater.You need to loop the list and add items like below

  foreach (Menus item in lstMenus)
                {
                    mnuid.Items.Add(new MenuItem(item.MenuName.ToString()));
                }

Sample Code:

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:Menu ID="mnuid" runat="server"></asp:Menu>
    
    </div>
    </form>
</body>
</html>

C#:

protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                //Sample Data to load the menu items
                List<Menus> lstMenus = new List<Menus>();
                Menus objMenu = new Menus();
                objMenu.MenuName = "Menu1";
                lstMenus.Add(objMenu);
                Menus objMenu2 = new Menus();
                objMenu2.MenuName = "Menu2";
                lstMenus.Add(objMenu2);
                Menus objMenu3 = new Menus();
                objMenu3.MenuName = "Menu3";
                lstMenus.Add(objMenu3);

                //Menu1.DataSource = lstMenus;
                //Menu1.DataBind();

                //loop through the list and add items to menu control
                foreach (Menus item in lstMenus)
                {
                    mnuid.Items.Add(new MenuItem(item.MenuName.ToString()));
                }
            }
        }

        //Class created
        public class Menus
        {
            public string MenuName { get; set; }
        }

Thanks,
A2H
My Blog

Jayakumars, if this helps please login to Mark As Answer. | Alert Moderator

Posted by: A2H on: 3/19/2017 [Member] [MVP] Silver | Points: 25

0	If you want to load child menu then you can refer this link https://www.codeproject.com/Tips/354696/Dynamically-populating-menu-items-from-the-databas Thanks, A2H My Blog Jayakumars, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Jayakumars on: 3/20/2017 [Member] [MVP] Bronze | Points: 25

0	Hi A2H thnaks for your reply But my menus shows like this with Bootstrap then menuitems binded from Db in C# can you guide me. How to create menu like this https://www.visualstudio.com/downloads/ Mark as Answer if its helpful to you Kumaraspcode2009@gmail.com Jayakumars, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: A2H on: 3/22/2017 [Member] [MVP] Silver | Points: 25

0	You can refer the below link to add menu from database https://www.aspsnippets.com/Articles/Bootstrap-Responsive-ASPNet-Menu-control-for-Mobile-Phone-Tablet-and-Desktop-display.aspx Thanks, A2H My Blog Jayakumars, if this helps please login to Mark As Answer. \| Alert Moderator

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