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Jason McIntosh
944
Events in a WinTree
posted

Hi,

I have a WinTree that is populated at runtime based on the users selection. Once populated the user of course selects a node, and then the program continues from there.

However, the issue I have is that I have used the example code from the Infragistics Help file to determine which node was selected and the event fires even when the user simply clicks on the Plus (+) to expand a node.

private void ultraTree1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
{
UltraTree tree;
tree = sender as UltraTree;

UltraTreeNode aNode;
aNode = tree.GetNodeFromPoint(e.X, e.Y);

if (aNode != null)
this.ultraTextEditor1.Text = aNode.Text; 
}

How can I determine the selected node with the event only firing when the user clicks on the node itself instead of on the expand/collapse node symbol.

 Cheers

Jason

  • 21382
    Verified Answer
    posted

    Jason,

    You could add a filter to your code based on what UIElement recieved the mouse event. 

    private void ultraTree1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
    {
    UltraTree tree;
    tree = sender as UltraTree;

                Infragistics.Win.UIElement ui = tree.UIElement.ElementFromPoint( new System.Drawing.Point(e.X, e.Y));

                if (ui is Infragistics.Win.UltraWinTree.NodeSelectableAreaUIElement || null != ui.GetAncestor(typeof(Infragistics.Win.UltraWinTree.NodeSelectableAreaUIElement)))
                {


                    UltraTreeNode aNode;
                    aNode = tree.GetNodeFromPoint(e.X, e.Y);

                if (aNode != null)
                this.ultraTextEditor1.Text = aNode.Text; 

             }
    }

     


    That should allow you to concentrate on the text area of the node rather than the expansion indicator.