Hi,

It works finally!!
I have enter this code so as you said and the borders have disappeared :

private void printDoc_InitializeTree(object sender, InitializeTreeEventArgs e)
{
    e.Control.ImageList = _tree.ImageList;
    e.Control.UseAppStyling = false;
    e.Control.BorderStyle = Infragistics.Win.UIElementBorderStyle.None;
}

Thank you veruy much for all your help.

Regards

Hi,

In AppStylist there is a property for each component called ResolutionOrder. With this property you can control if the settings set on the control or the settings set in AppStylist have precedence. If for the UltraTree this property is set to ControlThanApplication then the settings that are set on the control will have precedence and the suggestion I gave you will work. In order to set it go to the Navigation tab, hover the UltraTree and press “C” when the tooltip pops up. Then you can find the property in the Property Grid in the bottom right.

Please let me know if you have any additional questions.

Yes, you're right, we are using many times this instruction in our application, the problem must come from there.

This therefore means that we can not do anything else for removing the borders?

The BorderStyle might be overridden by an isl. Are you loading a Style Library into your application? Check for "StyleManager.Load" in your code if you are not sure.

Hi,

I have tested your sample and it works by me too.

It's seems to be exactly the same code as by me but I will see it again.

Regards