How can I change the background and foreground colors of a WPF Textbox programmatically in C#?
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8 Answers
textBox1.Background = Brushes.Blue;
textBox1.Foreground = Brushes.Yellow;
WPF Foreground and Background is of type System.Windows.Media.Brush. You can set another color like this:
using System.Windows.Media;
textBox1.Background = Brushes.White;
textBox1.Background = new SolidColorBrush(Colors.White);
textBox1.Background = new SolidColorBrush(Color.FromArgb(0xFF, 0xFF, 0, 0));
textBox1.Background = System.Windows.SystemColors.MenuHighlightBrush;
4 Comments
Sauron
If we want to set a hex value to the color attribute , how it can be done??
Timbo
You could use something like Brush brush = new SolidColorBrush( Color.FromRgb( r, g, b ) );
BlueRaja - Danny Pflughoeft
There is also the much prettier
LinearGradientBrush :)
mack
Be sure to include System.Windows.Media.
If you want to set the background using a hex color you could do this:
var bc = new BrushConverter();
myTextBox.Background = (Brush)bc.ConvertFrom("#FFXXXXXX");
Or you could set up a SolidColorBrush resource in XAML, and then use findResource in the code-behind:
<SolidColorBrush x:Key="BrushFFXXXXXX">#FF8D8A8A</SolidColorBrush>
myTextBox.Background = (Brush)Application.Current.MainWindow.FindResource("BrushFFXXXXXX");
2 Comments
Contango
It is much preferable to use
(System.Windows.Media.Brush)Application.Current.FindResource("BrushFFXXXXX"); as your application will not throw a threading exception if it is upgraded to use multiple dispatcher threads in the future.
amy
Where should
<SolidColorBrush x:Key="BrushFFXXXXXX">#FF8D8A8A</SolidColorBrush> be declared? When I try do so inside <Window x:Class ... I get error: "The property 'Content' is set more than once"I take it you are creating the TextBox in XAML?
In that case, you need to give the text box a name. Then in the code-behind you can then set the Background property using a variety of brushes. The simplest of which is the SolidColorBrush:
myTextBox.Background = new SolidColorBrush(Colors.White);
Comments
You can convert hex to RGB:
string ccode = "#00FFFF00";
int argb = Int32.Parse(ccode.Replace("#", ""), NumberStyles.HexNumber);
Color clr = Color.FromArgb(argb);
1 Comment
Pawel
System.Windows.Media.Color FromArgb is accepting byte a, byte r, byte g, byte b, not int
You can use hex colors:
your_contorl.Color = DirectCast(ColorConverter.ConvertFromString("#D8E0A627"), Color)
Comments
I know this has been answered in another SOF post. However, you could do this if you know the hexadecimal.
textBox1.Background = (SolidColorBrush)new BrushConverter().ConvertFromString("#082049");
Comments
Have you taken a look at Color.FromRgb?
Comments
BrushConverter bc = new BrushConverter();
textName.Background = (Brush)bc.ConvertFrom("#FF7BFF64");
buttonName.Foreground = new SolidColorBrush(Colors.Gray);
