thanks for all the info. I've been using DataReaders so far and just came across the adapter. So I'll stick with the reader.

ok, solved it. The idea is to have treeview beginupdate in the begginning of the textchanged delegate invocation and endupdate at the end when all nodes are updated. public class TagObject {... public event EventHandler TextChanged; public int TextChangedCount; public bool startOfInvocation; ... public void OnTextChanged(TextChangedEventArgs e) { if (TextChanged != null) { this.TextChangedCount = TextChanged.GetInvocationList().GetLength(0); this.startOfInvocation = true; TextChanged(this, e); } } *******************************************************************8 public class MyTreeNode : TreeNode {... public void UpdateTagText(string text) { ((TagObject)this.Tag).Name = text; }... public void UpdateText(object sender, EventArgs e) { TagObject tagObj = (TagObject)this.Tag; if (tagObj.startOfInvocation) { this.TreeView.BeginUpdate(); tagObj.startOfInvocation = false; } this.Text = ((TextChangedEventArgs)e).Text; tagObj.TextChangedCount--; if (tagObj.TextChangedCount == 0) { this.TreeView.EndUpdate(); } } takes about a sec for 500 nodes.

xilefxilef wrote: is also good. It's just more memory-intensive, I'd prefer to try the CPU-intensive solution and then decide whether or not it provides good performance

You could try cleaning your solution, sometimes old settings 'stick'. It's on the Build menu. Then build it again. Other than that it is very difficult to diagnose. I have occasionally had things like that and the only solution I have found is to start again in a new solution. Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.”

You;re looking for RectangleF, then you can use floats eg. X = 1.4f Dave If this helped, please vote & accept answer! Binging is like googling, it just feels dirtier. (Pete O'Hanlon) BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)

xilefxilef wrote: I need to draw them myself That's what 'OwnerDrawm' is all about ;) Dave If this helped, please vote & accept answer! Binging is like googling, it just feels dirtier. (Pete O'Hanlon) BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)

A good answer. It helps me to resolve my question. :-D :-D

I don't think any one is going to answer this as this is a Microsoft platform site. Try posting your question to a Java forum. Regards, ma se

i think you can build a usercontrol, that ok.;)

As a deep copy (with all the children nodes).

u should put the data to be copied in the active form in the somthing liake a clipboard (ie: an object) and pass this object to the main form

One way is to have each opening form pass an instance of itself to the form it opens and have that new form store that instance. If you want to access you form class's methods and properties, define the field in the new form as the type of your form and not simply Form (otherwise you'll have to cast your field to the right type before calling non-overridden methods and properties). Such a property does already exist and allows owned forms to be minimized and restored along with the owning form. Read the documentation[^] for the Form.Owner property for more information. This posting is provided "AS IS" with no warranties, and confers no rights. Software Design Engineer Developer Division Customer Product-lifecycle Experience Microsoft [My Articles] [My Blog]

thanx for the answer but can you elaborate on this topic, just a bit more detail of where to start to fix this problem.

You can use the KeyDown event

Results are not consistent because of different font types. You might like to use system font. - ashish

Here is a part of my code. I'm using e.Panel.Width to get the width of the panel. Is there a difference between this and what you suggested? ...this.statusBar1.Panels[0].Style = StatusBarPanelStyle.OwnerDraw; this.statusBar1.DrawItem += new StatusBarDrawItemEventHandler(Parent_DrawItem); ... private void Parent_DrawItem(object sender, StatusBarDrawItemEventArgs e) { SizeF stringSize = e.Graphics.MeasureString(e.Panel.Text, e.Font); ... From here on I'm using stringSize.Width and e.Panel.Width, but when visually panel ends where the text ends their actual widths are very different, eventhough visually they are the same. Why such difference? Thank you for all the help