[UWP]如何在C#代码中更改App.Resources颜色? [英] [UWP] How to Change App.Resources Color in C# Code?
问题描述
<Color x:Key="ThemeColorMain">#FF0E777B</Color>
//我想改变ThemeColorMain到c#代码。
//I want to change the ThemeColorMain through c# code.
(
应用 。Current.Resources [ " ThemeColorMain" ]
as SolidColorBrush )。颜色
=颜色;
Application.Current.Resources["ThemeColorMain"] asSolidColorBrush).Color = color;
//更改ThemeColorMain中的ThemeColor
//Change also the ThemeColor from ThemeColorMain
<
SolidColorBrush x : 键 =" ThemeColor" 颜色 =" { StaticResource ThemeColorMain }" >< / SolidColorBrush >
SolidColorBrushx:Key="ThemeColor"Color="{StaticResourceThemeColorMain}"></SolidColorBrush>
推荐答案
您好,
对于第一个以下代码生成空引用异常。
For first following code generate null reference exception.
应用 。Current.Resources [ " ThemeColorMain" ] as SolidColorBrush )。颜色
=颜色;
Application.Current.Resources["ThemeColorMain"] as SolidColorBrush).Color = color;
因为你的ThemeColorMain是颜色类型。
because of your ThemeColorMain is Color type.
使用以下
use following
< SolidColorBrush x : 键 =" ThemeColor" 颜色 ="#FF0E777B " >< / SolidColorBrush >
<SolidColorBrushx:Key="ThemeColor"Color="#FF0E777B"></SolidColorBrush>
应用 。Current.Resources [ " ThemeColor" ] as SolidColorBrush )。颜色
=颜色;
Application.Current.Resources["ThemeColor"] as SolidColorBrush).Color = color;
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