If the ItemsPresenter is not the direct child. (The ItemsPresenter displays each item in the TreeView the ScrollViewer enables scrolling within the control). When an element is focused within a ScrollViewer (which is part of the TreeView template), the ScrollViewer is instructed to make the element visible. Sounds like this is an interaction with the scrollviewer and the focus system. When you create a ControlTemplate for an TreeView, your template might contain a ItemsPresenter within a ScrollViewer. It looks like I found a good clue on MSDN. ![]() We set the Orientation of the StackPanel to Horizontal because the default is Vertical. The TreeView control does not have any named parts. Inside the TreeViewItem.Header is a StackPanel with an Ellispe and a TextBlock. The TreeView control has its ItemTemplate property set to the key of the last resource in your Resources section.This shows us that we can stuff pretty much whatever we want to into the Header property instead of just a string and then have the TreeView render it â a great example of why itâs so easy to customize the look of WPF controls.â This is will the first and will start with a fe. ![]() ![]() As you can see, I can just specify a text string and then have it rendered directly without doing anything else, but this is WPF being nice to us â internally, it wraps the text inside of a TextBlock control, instead of forcing you to do it. Welcome To WPF Tutorials Tree View In WPFIn this part of WPF Tutorials, were going cover TreeView Control. WPF Tutorial says in their article A simple TreeView example: âThe Header is an interesting property, though.
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