For any converters or brush resources mentioned here, you can find them throughout our OfficeBlue files, or customize them yourself. You can change the size, position and border of this however you like. Resources> The Border with a width and height of 14 is the element that displays the color. This namespace is defined in the XAML to use the cnv prefix like this. If you want to avoid boxing, build a dictionary up to start with for the standard names (still using ColorConverter) and then use the dictionary for subsequent lookups. Call ColorConverter.ConvertFromString and cast the result. So to customize this, you simply need to create a custom ColorButtonStyle. Of course, ColorConverter is the way to go. The size of the colored square is fixed in our default ColorButton styles.
#Wpf colorconverter xaml codeIf you need help, send me the styling code of how far you get, and I'll point you in the right direction. The color of the button can be binding to the result of the color picker. Alternatively (instead of replacing the DropDownEditBox), you could create a custom DropDownEditBox style which does not disply the header - only the drop down button, and style this button how you want. Look at the DropDownEditBox to see how we do the popup shadows. And have a popup on the button containing the color picker bits, and open the popup when the button is checked. The easiest way would be to replace the DropDownEditBox with a Toggle button with IsChecked binding to IsDropDownOpen. Search for DropDownColorPicker in one of the files that ends with. You can do this by creating a custom DropDownColorPicker style by copying and modifying one of the default themes that can be found in the Themes folder of the installation directory. Do you want the popup section of the color picker to appear underneath the button? If so, you'll probably want the button to actually be a DropDownColorPicker. Seems you need literally all the steps explained.You are right, building the ColorPicker in the model is not the way to go. So, here's how I changed my XAML into what you suggested: I don't think that it's returning a valid Brush. It's something about the converter I think.Ĭonsole.WriteLine("ColorConverter Convert Exception: " + ex.Message) It is interesting that if I set the background color in XAML without a converter, the color does change (just not every row). I just don't see where the error is? Any clues? I believe I used exactly what you suggested. WPF exposes type converters as classes deriving from TypeConverter (BrushConverter, ColorConverter, and so on). Just adjust your HierarchicalDataTemplate design for your TreeView and you should do fine.īummer! I have to figure this out. You do not have to worry since you do not have ui virtualization enabled. I tried it with virtualization enabled just out of interest and sometimes TreeView applies wrong container to wrong place so things get messy (nr 15 and 16). Magnus solution with static int value gets the job done and works as long the TreeView doesn't start virtualizing items. Lets face it, it looks ugly, but at least it works and background is being changed. I couldn't test your code so I copy pasted few snippets from Magnus code. It seems to me your HierarchicalDataTemplate is wrong.Ĭonsider changing the HierarchicalDataTemplate. Public object ConvertBack(object value, Type targetType, object parameter, culture) Public object Convert(object value, Type targetType, object parameter, culture) It's unclear what colour you mean but if you for example want to have alternating background colours for the nodes, you could use a converter: class ColorConverter : IValueConverter
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