- C# WPF Introduction
- C# WPF First Program
- C# WPF without XAML – Window Class
- C# WPF First Window Introduction
- C# WPF Create a Simple Binding Object in Code Behind
- C# WPF Data Binding
- C# WPF Data Binding and Triggers
- C# WPF Data Binding and Binding Direction
- C# WPF Data Binding and Triggers MouseOvers
- C# WPF Value Converters
- C# WPF ComboBox Control
- C# WPF Bindings and ItemsControls
- C# WPF Styles
- C# WPF RGB Colour Viewer
- C# WPF XAML Background Colour
- C# WPF Events
- C# WPF Dynamic Binding to External Objects
- C# WPF Multiple Bindings on an Object
In your Windows program, how do you set the background colour of a control, such as a rectangle, using XAML?
The XAML code below shows you how to set a custom colour using XAML.
WE have another post that goes into a lot more detail. It is called WPF RGB Color Viewer.
<Rectangle Name="Rect" HorizontalAlignment="Left" Height="185" Stroke="Black" VerticalAlignment="Top" Width="71" Canvas.Left="416" Canvas.Top="65">
<Rectangle.Fill>
<SolidColorBrush>
<SolidColorBrush.Color>
<!-- Describes the brush's color using RGB values. Each value has a range of 0-255.
R is for red, G is for green, and B is for blue. A is for alpha which controls
transparency of the color. Therefore, to make a completely transparent
color (invisible), use a value of 0 for Alpha. -->
<Color>
<Color.A>255</Color.A>
<Color.R>100</Color.R>
<Color.G>200</Color.G>
<Color.B>150</Color.B>
</Color>
</SolidColorBrush.Color>
</SolidColorBrush>
</Rectangle.Fill>
</Rectangle>
The next question is how do you allow the user of the program to set the colour of the rectangle? You could provide three text boxes for them to enter in the values. Have a look at a more complete program at this post called RGB Colour Viewer.