How to Highlite Active Tree View Node

Sourabh Sharma

Hello friends,

I am using a Tree View which have many nodes,Now my problem is dat when I made any data entry against any of the node,color of that node should changed so dat I know against which node I am doing entry .. means onle active node's color should be changed.

2 Replies

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Sourabh Sharma18y ago
Hi Scott,

thanks for ur reply...I hope so it will work, but i choose another way to know my answer...Guess wat??

I put the value of current style into a label and make it visible wen clicking on any particular style...bu now I will try to use ur method.

Thanks 4 ur help.
Scott Lysle18y ago

The following code will find a node and highlight it.

private void btnFindNode_Click(object sender, EventArgs e)

{

   ClearBackColor();

   try

   {

      TreeNode[] tn = treeView1.Nodes[0].Nodes.Find(txtNodeSearch.Text, true);

      for (int i = 0; i < tn.Length; i++)

      {

         treeView1.SelectedNode = tn[i];

         treeView1.SelectedNode.BackColor = Color.Yellow;

      }

   }

   catch { }

}

// recursively move through the treeview nodes

// and reset backcolors to white

private void ClearBackColor()

   {

      TreeNodeCollection nodes = treeView1.Nodes;

      foreach (TreeNode n in nodes)

      {

         ClearRecursive(n);

      }

   }

// called by ClearBackColor function

private void ClearRecursive(TreeNode treeNode)

{

   foreach (TreeNode tn in treeNode.Nodes)

   {

      tn.BackColor = Color.White;

      ClearRecursive(tn);

   }

}