ComponentOne TreeView for ASP.NET WebForms
Task-Based Help / Adding a Top-Level Node
In This Topic
    Adding a Top-Level Node
    In This Topic

    This topic illustrates how to add a top-level node to a C1TreeView control in Design view, in Source view, and in code.

    In Design View

    Complete the following steps:

    1. Click the smart tag to open the C1TreeView Tasks menu. Select Edit TreeView.

      The C1TreeView Designer Form dialog box opens.

    2. Click the Add Child Item button   to add a C1TreeViewNode to the C1TreeView control.
    3. Click OK to close the C1TreeView Design Form dialog box.

    In Source View

    Add the following markup between the <cc1:C1TreeView> tags:

    Markup
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    <cc1:C1TreeViewNode ID="Node1" runat="server" Text="Node1">
    </cc1:C1TreeViewNode>
    

    In Code View

    Complete the following steps:

    1. Import the following namespace into your project:

      To write the code in Visual Basic:

      Visual Basic
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      Imports C1.Web.Wijmo.Controls.C1TreeView

      To write the code in C#:

      C#
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      using C1.Web.Wijmo.Controls.C1TreeView;
    2. Add the following code to the Page_Load event:

      To write the code in Visual Basic:

      Visual Basic
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      Dim TreeViewNode1 As New C1TreeViewNode()
      C1TreeViewNode1.Text = "C1TreeViewNode1"
      C1TreeView1.Nodes.Add(C1TreeViewNode1)

      To write the code in C#:

      C#
      Copy Code
      C1TreeViewNode TreeViewNode1 = new C1TreeViewNode();
      C1TreeViewNode1.Text = "C1TreeViewNode1";
      C1TreeView1.Nodes.Add(C1TreeViewNode1);
    3. Run the program.
    See Also