c# - 通过代码将 MergedDictionaries 添加到样式

Question

我在资源文件中有这个样式:

<ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="Colors.xaml"/>
            </ResourceDictionary.MergedDictionaries>
            <Style TargetType="TextBox" x:Key="StandardTextBox"/>
                <Setter Property="Foreground" Value="{StaticResource Color1}"/>
            </Style>
</ResourceDictionary>

(Colors.xaml 包含我的画笔)

我的代码使用样式:

ResourceDictionary TetxboxStyles = new ResourceDictionary();
TetxboxStyles.Source = (new Uri("TextboxStyles.xaml", UriKind.RelativeOrAbsolute));
Resources.MergedDictionaries.Add(TetxboxStyles);
tb_input.Style = (Style)Find("StandardTextBox");

这没有问题，但是当我通过代码而不是在 TextboxStyles-File 中动态添加 Colors-Resource 时它不起作用:

ResourceDictionary TetxboxStyles = new ResourceDictionary();
TetxboxStyles.Source = (new Uri("TextboxStyles.xaml", UriKind.RelativeOrAbsolute));

//Adding the Colors.xaml Resource
ResourceDictionary Colors = new ResourceDictionary();
brushes.Source = (new Uri("Colors.xaml", UriKind.RelativeOrAbsolute));
TetxboxStyles.MergedDictionaries.Add(Colors);

Resources.MergedDictionaries.Add(TetxboxStyles);
tb_input.Style = (Style)Find("StandardTextBox");

输出错误:

System.Windows.Markup.XamlParseException

“{DependencyProperty.UnsetValue}”

Answer 1

我用 DynamicResource 替换了 StaticResource 并且它有效