Using C# variable to set XAML attributes-CodePudding

I have been trying to use C# variables to set the values of XAML attributes, but haven't had success. I have a variable holding the value "Verdana", the font I'd like to use on the buttons of the application, however when trying to compile the code I get an exception:

"ArgumentException: "Verdana" is not a valid value for the attribute "FontFamily".

The same exception appears for every attribute with a value coming from a variable, besides width and height. I'm grateful for any suggestions on how to solve this.

I used the following code:

C# Class

namespace Ueb21d_SplitPanel
{
    public static class AzoConst
    {
        public static readonly double FONTSIZE_BUTTON = 16;
        public static readonly string BACKGROUND_BUTTON = "Green";
        public static readonly string FONT_BUTTON = "Verdana";
        public static readonly string FONTCOLOR_BUTTON = "White";
        public static readonly double WIDTH_BUTTON = 70;
        public static readonly double HEIGHT_BUTTON = 30;
    }
}

XML Namespace

xmlns:local="clr-namespace:Ueb21d_SplitPanel;assembly=Ueb21d_SplitPanel"

XAML code for one button

<Button x:Name="btnClose" Content="Close" 
        Width="{x:Static local:AzoConst.WIDTH_BUTTON}"
        Height="{x:Static local:AzoConst.HEIGHT_BUTTON}" Margin="5,0,0,0"
        IsCancel="True" RenderTransformOrigin="0.5,0.5" 
        FontFamily="{x:Static local:AzoConst.FONT_BUTTON}"
        Foreground="{x:Static local:AzoConst.FONTCOLOR_BUTTON}"
        Background="{x:Static local:AzoConst.BACKGROUND_BUTTON}"
        FontSize="{x:Static local:AzoConst.FONTSIZE_BUTTON}"/>

CodePudding user response：

Use the appropriate types that match the types of the dependency properties and it will work.

FontFamily is of type FontFamily
Foreground is of type Brush
Background is of type Brush

public static class AzoConst
{
   public static readonly double FONTSIZE_BUTTON = 16;
   public static readonly Brush BACKGROUND_BUTTON = Brushes.Green;
   public static readonly FontFamily FONT_BUTTON = new FontFamily("Verdana");
   public static readonly Brush FONTCOLOR_BUTTON = Brushes.White;
   public static readonly double WIDTH_BUTTON = 70;
   public static readonly double HEIGHT_BUTTON = 30;
}