在代码中解析XAML样式并加载自定义控件

Posted 2021-03-28

我有一个使用Roslyn解析C＃代码的c ++程序。我需要将我的样式和自定义控件转换为“代码隐藏”。

例如，我有一个简单的自定义控件包含一个按钮。

XAML风格：

<ResourceDictionary
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="clr-namespace:CUSTOM_LIBRARY_PARSE">
    <Style TargetType="{x:Type local:CustomControl1}">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type local:CustomControl1}">
                    <Border Background="{TemplateBinding Background}"
                            BorderBrush="{TemplateBinding BorderBrush}"
                            BorderThickness="{TemplateBinding BorderThickness}">
                        <Button Background="#FF487DF0" >
                            <Label VerticalContentAlignment="Center" HorizontalContentAlignment="Center" OpacityMask="#FFC3C3C3" Content="{Binding text_of_button_Value, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type local:CustomControl1}}}" />
                        </Button>
                    </Border>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</ResourceDictionary>

控制代码：

using System;
using System.Windows;
using System.Windows.Controls;
namespace CUSTOM_LIBRARY_PARSE
{
    public class CustomControl1 : Control
    {
        public static readonly DependencyProperty text_of_button
= DependencyProperty.Register(
"text_of_button_Value",
typeof(string),
typeof(CustomControl1),
new PropertyMetadata(Environment.UserName)
);
        public string text_of_button_Value
        {
            get { return (string)GetValue(text_of_button); }
            set { SetValue(text_of_button, value); }
        }
        static CustomControl1()
        {
            DefaultStyleKeyProperty.OverrideMetadata(typeof(CustomControl1), new FrameworkPropertyMetadata(typeof(CustomControl1)));
        }
    }
}

现在，我需要知道如何在代码中嵌入xaml代码作为字符串，如：

  string code_xaml = "<ResourceDictionary
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="clr-namespace:CUSTOM_LIBRARY_PARSE">
    <Style TargetType="{x:Type local:CustomControl1}">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type local:CustomControl1}">
                    <Border Background="{TemplateBinding Background}"
                            BorderBrush="{TemplateBinding BorderBrush}"
                            BorderThickness="{TemplateBinding BorderThickness}">
                        <Button Background="#FF487DF0" >
                            <Label VerticalContentAlignment="Center" HorizontalContentAlignment="Center" OpacityMask="#FFC3C3C3" Content="{Binding text_of_button_Value, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type local:CustomControl1}}}" />
                        </Button>
                    </Border>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</ResourceDictionary>
";

然后使用XamlParser解析它并将其加载到customcontrol1

那可能吗 ？谢谢

答案

答案是 ：

1. 创建自定义控件的公共版本： public CustomControl1() { }
2. 创建自定义控件的公共版本： public CustomControl1() { ResourceDictionary Parse_Resource = XamlReader.Parse(code_xaml) as ResourceDictionary; this.Resources = Parse_Resource; }

解决了：D