i work on VS05 C#
I have a treeview derived control, and I want this tree view to be
shown with a background image.What should I do in order to display a background image behind the tree and still view the tree nodes?
the default TreeView control doesn't support backgrounds
Related
Setup
I have a series of drag and drop elements (WPF Controls) on a template. When those template elements are stacked I offer the user the ability to unstack them through the context menu. The context menu items are generated in the behind code in an extension class I created.
Problem
I would like to offer an image of the element as the icon in the context menu, next to the corresponding menu item header. Currently I have tried a series of solutions, none of which work.
Atempted solutions
How can I convert a WPF control into an image?
Get a bitmap image from a Control view
The MenuItem.Icon takes a visual object. Unfortunately when I just hand it my element, which is a visual, it bombs because the element is part of another visual tree.
So I tried cloaning it and then providing it the same DataContext. Which worked, kinda. Without going into to much depth, the size of the element is bound to the datacontext so it's VERY difficult to adjust the size from the behind code without it looking like a giant hack.
Desired outcome
I want to render an image of my WPF control and assign that to the MenuItem.Icon property. Also I need to be able to do this in the behind code.
To get an image of a control, you can do using a VisualBrush, with Visual bound to the control. An example of this with transforms (stretching, etc) can be found at MSDN here.
I have a ListView control which is behind other controls. I cant set parent nor use BringInFront function like in winforms to make it front. How I can achieve this in WPF? Bring ListView control in top of other controls.
You can set the ZIndex Property to the maximum.
Read this
OR
Alternatively, just move the ListView control to the bottom of the declarations inside the Grid (z-order is bottom (highest) to top (lowest)). Perhaps a bit counterintuitive.
You can do this,
Goto View->Designer (Shift+f7)
Right Click your ListView ,
Order->Bring To Front
I have a grid view which has multiple items.
Each Item is a Webview. Now My issue is that I have a ComboBox above the GridView. When I select Combobox the drop down hides behind the GridView item (i.e Webview). Now I cannot use a WebViewBrush since I have multiple WebView items inside the grid view. Any suggestions?
XAML UI is always behind a WebView window - this is a typical airspace issue. You have to use WebViewBrush for any WebViews that might obscure your XAML controls. Some alternatives include modifying your UI layout - e.g. going to a separate page to display your selector control or moving ui elements about so they don't collide or implementing all of it in HTML.
Im creating a user control, for searching a treeview.
I would like to add the usercontrol to the top of the treeview.
I can achieve this by treeview.controls.add(mycontrol);
However my user control i placed on top of the tree and hidding parts of the tree. Can I somehow change placement of the tree inside the treeview. Or do i need another approach?
Just to clearify I do not want the usercontrol to be a part of the tree. I only want to display it on the top of the treeview
I am wondering if anyone knows of a WPF control that can serve the following functions.
Is a treeview that contains treenodes
Can display different numbers of treeviews depending on how wide the parent window is expanded
Can be bound with an ItemSource
You can try the DevExpress TreeList control:
http://www.devexpress.com/Products/NET/Controls/WPF/Tree_List/
Or
Telerik's TreeView control:
http://www.telerik.com/products/wpf/treeview.aspx
Check out their demos and you can even download and try them.