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Explenation needed about a methode

Posted on 2011-03-17
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Last Modified: 2013-12-17
Hi,

Can someone explain the following lines for me:

        private void tvNotes_AfterLabelEdit(object sender, NodeLabelEditEventArgs e)
        {
         try
         {
             if (e.Label.Trim().Length < 1) { e.CancelEdit = true; }  
             EditNode(tvNotes.SelectedNode,e.Label);                  <=====
             tvNotes.SelectedNode.EndEdit(false);          <=========
             tvNotes.LabelEdit = false;   <========
         }
         catch (Exception err) { MessageBox.Show(err.Message); }
         }


Grtz, Peter Kiers
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Question by:peterkiers
2 Comments
 
LVL 23

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by:
wdosanjos earned 500 total points
ID: 35159342
            EditNode(tvNotes.SelectedNode,e.Label);                  <=====

Calls a method named EditNode on the current class, passing the selected tree node and the new label string.

             tvNotes.SelectedNode.EndEdit(false);          <=========

Saves the changes to the selected tree node, and updates the screen with the change.

             tvNotes.LabelEdit = false;   <========

Indicates that the TreeView node labels cannot be edited.


I hope this helps.
0
 
LVL 11

Expert Comment

by:wrmichael
ID: 35159346
 private void tvNotes_AfterLabelEdit(object sender, NodeLabelEditEventArgs e)
        {
         try
         {
             if (e.Label.Trim().Length < 1) {

              //this cancels the labeledit if the length is of the label is less than 1 or blank
              e.CancelEdit = true;


 }  
             //this looks like a function.  do you have the code for it?
             EditNode(tvNotes.SelectedNode,e.Label);                  <=====
            //not sure
             tvNotes.SelectedNode.EndEdit(false);          <=========
//stop people from editing            
tvNotes.LabelEdit = false;   <========
         }
         catch (Exception err) {
//shows error
MessageBox.Show(err.Message); }
         }
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