recursion function for generating menu in C#

Jak

908 Points

132 Posts

Hi,

I am working arround menu. I need to generate html multi level menu (using ul/li tags). I have following menu table

MenuID	MenuName	ParentMenuID	Link
1	about us	NULL
2	services	NULL
3	about company	1
4	goal of company	1
5	technical consult	2
6	contact us	NULL

..like that.

I want recursive function to generate menu with all child as:

<ul>

<li>contact us</li>

<li>about us

<ul>

<li>about company</li>

<li>goal of company</li>

</ul>

</li>

<li>services

<ul>

<li>technical consult

<ul>

</ul>

</li>

</ul>

</li>

</ul>

.net c#recursive function for menu

Views: 10491
Total Answered: 1
Total Marked As Answer: 0
Posted On: 15-Jan-2016 00:19

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Answers

beginer

1576 Points

53 Posts

Use following logic to build menu

private HtmlGenericControl RenderMenu(Nodes nodes)
{
    if (nodes == null)
        return null;

    var ul = new HtmlGenericControl("ul");

    foreach (Node node in nodes)
    {
        var li = new HtmlGenericControl("li");
        li.InnerText = node.Name;

        if(node.Children != null)
        {
            li.Controls.Add(RenderMenu(node.Children));
        }

        ul.Controls.Add(li);
    }

    return ul;
}