disable a node in tree view

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hi dear's
i design a treeview which show my information,
i want when name node="sample" it's automaticaly disabled,
how i can??
sincerely yours

Posted 20-May-12 21:52pm

hanis29268

Updated 20-May-12 22:01pm

v3

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2 solutions

Solution 1

AFAIK, you can't do it automatically - there is no "Node added" event you can handle, so you would have to check manually every time you add a node.
The other problem is that TreeNodes doen't have an Enabled property, so you can't disable it without doing some slightly complicated processing.

What are you trying to achieve, that you think this would help? There may be a better solution.

Posted 20-May-12 22:07pm

OriginalGriff

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**JF2015** · Accepted Answer · 2012-05-20T22:10:00

Solution 2

Although there is no "enabled" property, you can simulate it by graying out the node and avoiding that anyone can click on it. Maybe this could work:

C#

private void treeView1_BeforeSelect(object sender, TreeViewCancelEventArgs e)
{
  if (Color.Gray == e.Node.ForeColor)
    e.Cancel = true;
}

private void Form1_Load(object sender, EventArgs e)
{
  foreach (TreeNode node in treeView1.Nodes)
    if (node.Text == "sample")
      node.ForeColor = Color.Gray;
}

Posted 20-May-12 22:10pm

JF2015

Updated 20-May-12 23:29pm

v2

Comments

VJ Reddy 21-May-12 4:47am

Good answer. 5!

JF2015 21-May-12 4:48am

Thank you very much!

Ana Valero 24-Nov-14 4:23am

Works perfectly!!