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How To Create A Nested LinkButtons Inside A Repeater?

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死守一世寂寞
死守一世寂寞 2021-01-24 14:04

I need to create a nested linkbuttons in a asp.net page that looks like a treeview, but all are linkbuttons. Example is shown below:

ParentLinkButton1
    ChildL
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  • 感情败类
    感情败类 (楼主)
    2021-01-24 14:13

    The following example uses a ListView instead of a Repeater. ListViews are great because they'll give you much more flexibility over a Repeater. Moreover, as you can see in the sample code below, binding the nested/child ListView can all be done declaratively without any code-behind.

    Example of what the following code will produce

    enter image description here

    ASPX 

    
    
        
      
            
    • 
        
    
        
    
        
  •     
            <%# Eval("Name")%>
            
                
                    
      
                        
    • 
                    
    
                    
                
                    
  • <%# Eval("Name")%>
    •

    • C#

    lvw.DataSource = personList;
lvw.DataBind();

    As you can see, in the C# code, I've created a list of "Person" as follows. Each Person object has a list of child Person objects. By creating your objects in this manner, binding the ListView is really as simple as I've shown. Use the Person object below to run a quick sample so you can see for yourself.

    Person object

    public class Person
{
    public string name { get; set; }
    public List Children { get; set; }
}

    For your test, you can create a Page_Load method as follows:

    protected void Page_Load(object sender, EventArgs e)
    {
        List personList = new List();
        Person person1 = new Person() { name = "Child 1" };
        Person person2 = new Person() { name = "Child 2" };
        List childPersonList1 = new List();
        childPersonList1.Add(person1);
        childPersonList1.Add(person2);
        Person person3 = new Person() { name = "Person 1" };
        person3.Children = childPersonList1;
        personList.Add(person3);
        Person person4 = new Person() { name = "Child 3" };
        Person person5 = new Person() { name = "Child 4" };
        List childPersonList2 = new List();
        childPersonList2.Add(person4);
        childPersonList2.Add(person5);
        Person person6 = new Person() { name = "Person 2" };
        person6.Children = childPersonList2;
        personList.Add(person6);
        Person person7 = new Person() { name = "Child 5" };
        Person person8 = new Person() { name = "Child 6" };
        List childPersonList3 = new List();
        childPersonList3.Add(person7);
        childPersonList3.Add(person8);
        Person person9 = new Person() { name = "Person 3" };
        person9.Children = childPersonList3;
        personList.Add(person9);

        lvw.DataSource = personList;
        lvw.DataBind();
    }

    See the following StackOverflow question to learn more about the differences between a Repeater and a ListView: Repeater, ListView, DataList, DataGrid, GridView ... Which to choose?

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