Add check boxes to leaf nodes (VB) : TreeView « Asp Control « ASP.Net






Add check boxes to leaf nodes (VB)


<%@ Page Language="VB" %>

<script runat="server">    
   Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs)
        If TreeView1.CheckedNodes.Count > 0 Then
            For Each node As TreeNode In TreeView1.CheckedNodes
                Label1.Text += node.Text & " " & node.Parent.Text & "<br>"
            Next
        Else
            Label1.Text = "You didn't select anything. Sorry!"
        End If
   End Sub
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>Latest Hardware</title>
</head>
<body>
    <form id="Form1" runat="server">
        <asp:TreeView ID="Treeview1" Runat="server" Font-Underline="False" 
         DataSourceID="XmlDataSource1" ShowCheckBoxes="Leaf">
            <DataBindings>
                <asp:TreeNodeBinding DataMember="Hardware"
                 Text="Computer Hardware" />
                <asp:TreeNodeBinding DataMember="Item" TextField="Category" />
                <asp:TreeNodeBinding DataMember="Option" TextField="Choice" />
            </DataBindings>
        </asp:TreeView>
        <p>
        <asp:Button ID="Button1" Runat="server" Text="Submit Choices" 
         OnClick="Button1_Click" />
        </p>
        <asp:XmlDataSource ID="XmlDataSource1" Runat="server"     
         DataFile="Data.xml">
        </asp:XmlDataSource>
       </p>
       <asp:Label ID="Label1" Runat="Server" />
    </form>
</body>
</html>

File: Data.xml

<?xml version="1.0" encoding="utf-8"?>
<Hardware>
  <Item Category="A">
    <Option Choice="A1" />
    <Option Choice="A2" />
  </Item>
  <Item Category="B">
    <Option Choice="B1" />
    <Option Choice="B2" />
    <Option Choice="B3" />
  </Item>
</Hardware>

 








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