MKPanchal
asked on
How to find child node in Treeview ASP.NET 2005
How to find the child node in the Treeview. I am using the Visual Studio 2005. I am able to find the Root Node by using the following, but how to find the child node.
Dim name As TreeNode
name = TreeView1.FindNode("Node2" )
If Not name Is Nothing Then
End If
Dim name As TreeNode
name = TreeView1.FindNode("Node2"
If Not name Is Nothing Then
End If
ASKER
Hello Archang3l
Thanks for the quick reply.
name.FirstNode , name.LastNode etc not a member of Treenode VS8. I am using the Visual Studio 2005 .Net Framework2.0
So in this some members removed.
Actually i am creating Treeview Dynamically which contains the Main Assembly Number (RootTree) and sub assembly Number(ChildTree). User enter the Serial number then i search same serial number in SQL database and find its Assembly Number. Now i want to find that assembly number exists in Treeview then want to mark as checked.
So i want to find the child node and then want to mark the checked.
Regards,
Mehul
Thanks for the quick reply.
name.FirstNode , name.LastNode etc not a member of Treenode VS8. I am using the Visual Studio 2005 .Net Framework2.0
So in this some members removed.
Actually i am creating Treeview Dynamically which contains the Main Assembly Number (RootTree) and sub assembly Number(ChildTree). User enter the Serial number then i search same serial number in SQL database and find its Assembly Number. Now i want to find that assembly number exists in Treeview then want to mark as checked.
So i want to find the child node and then want to mark the checked.
Regards,
Mehul
The following code will enumerate all child nodes in a treeview recursively.
StringBuilder sb = new StringBuilder(string.Empty );
private void EnumerateChildnodes()
{
foreach (TreeNode node in TreeView1.Nodes)
{
sb.Append("Node Text: " + node.Text);
sb.Append("<br>");
EnumerateChildnodes(node);
}
Response.Write(sb.ToString ());
}
private void EnumerateChildnodes(TreeNo de node)
{
foreach (TreeNode childnode in node.ChildNodes)
{
sb.Append("Node Text: " + childnode.Text);
sb.Append("<br>");
//childnode.ShowCheckBox = true;
//childnode.Checked = true;
EnumerateChildnodes(childn ode);
}
}
StringBuilder sb = new StringBuilder(string.Empty
private void EnumerateChildnodes()
{
foreach (TreeNode node in TreeView1.Nodes)
{
sb.Append("Node Text: " + node.Text);
sb.Append("<br>");
EnumerateChildnodes(node);
}
Response.Write(sb.ToString
}
private void EnumerateChildnodes(TreeNo
{
foreach (TreeNode childnode in node.ChildNodes)
{
sb.Append("Node Text: " + childnode.Text);
sb.Append("<br>");
//childnode.ShowCheckBox = true;
//childnode.Checked = true;
EnumerateChildnodes(childn
}
}
Here is the VB version.. place a treeview on a page and add childnodes .. use the following code in the codebehind to see the results.
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not IsPostBack Then
EnumerateChildnodes()
End If
End Sub
Dim sb As New StringBuilder
Private Sub EnumerateChildnodes()
For Each node As TreeNode In TreeView1.Nodes
sb.Append("Node Text: " & node.Text)
sb.Append("<br>")
EnumerateChildnodes(node)
Next
Response.Write(sb.ToString ())
End Sub
Private Sub EnumerateChildnodes(ByVal node As TreeNode)
For Each childnode As TreeNode In node.ChildNodes
sb.Append("Node Text: " & childnode.Text)
sb.Append("<br>")
EnumerateChildnodes(childn ode)
Next
End Sub
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not IsPostBack Then
EnumerateChildnodes()
End If
End Sub
Dim sb As New StringBuilder
Private Sub EnumerateChildnodes()
For Each node As TreeNode In TreeView1.Nodes
sb.Append("Node Text: " & node.Text)
sb.Append("<br>")
EnumerateChildnodes(node)
Next
Response.Write(sb.ToString
End Sub
Private Sub EnumerateChildnodes(ByVal node As TreeNode)
For Each childnode As TreeNode In node.ChildNodes
sb.Append("Node Text: " & childnode.Text)
sb.Append("<br>")
EnumerateChildnodes(childn
Next
End Sub
ASKER
Hi Codeclay,
Thanks for the same.
This code will make a string and in that i can know the Node name. Now i want to set the Checked property for that child node.
Regards,
Mehul
Thanks for the same.
This code will make a string and in that i can know the Node name. Now i want to set the Checked property for that child node.
Regards,
Mehul
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ASKER
Hi Codeclay,
Yes i found the answer. Thanks so much for your support.
Regards,
Mehul
Yes i found the answer. Thanks so much for your support.
Regards,
Mehul
The childnodes of the rootnode can be enumerated by using the nodes property.
The first child is accessible through FirstNode.
The last child is accesible through LastNode.
Dim name As TreeNode
Dim node As TreeNode
name = TreeView1.FindNode("Node2"
If Not name Is Nothing Then
name.FirstNode ' First Child node
name.LastNode ' Last Child node
' Enumerate children
For Each node In name.Nodes
node.FullPath ' Get path of node
Next node
End If
For more info see:
http://msdn2.microsoft.com/en-us/library/system.windows.forms.treenode.nodes(VS.71).aspx
Regards,
archang3l