C# &引用；SelectedValue"；WPF中comboBox的值正确，但包含名称空间的附加文本

WPF中comboBox的“SelectedValue”具有正确的值，但带有命名空间的附加文本。我正在跟踪MVVM，“SelectedValue”绑定到“SelectedImage”属性

如果选择第一个comboBoxItem，其值为“System.Windows.Controls.ComboBox:Firmware Image 1”

如何仅获取选定值？

            <ComboBox Grid.Row="1"
              Grid.Column="1"
              Width="150"
              Height="30"
              ToolTip="Store Identification"
              Margin="0,2,10,0"
              HorizontalAlignment="Right"
              VerticalAlignment="Top"
              Background="#FF1649A0"
              BorderBrush="White"
              Foreground="White"

              SelectedValue="{Binding SelectedImage}">
            <ComboBox.Items>
                <ComboBoxItem Content="Firmware Image 1 " />
                <ComboBoxItem Content="Firmware Image 2" />
            </ComboBox.Items>
        </ComboBox>

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如果将项目绑定到

列表

或

可观察收集

中，则完成操作

<ComboBox ItemsSource="{Binding Images}" SelectedValue="{Binding SelectedImage}" />

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绑定到codebehind中的对象，您可以执行

内容

属性。

使用字符串，就这样：

 <ComboBox Grid.Row="1"
          Width="150"
          Height="30"
          ToolTip="Store Identification"
          Margin="0,2,10,0"
          HorizontalAlignment="Right"
          VerticalAlignment="Top"
          Background="#FF1649A0"
          BorderBrush="White"
          Foreground="White"
           SelectedValue="{Binding SelectedImage}" >
        <ComboBox.Items>
            <sys:String>Firmware Image 1</sys:String>
            <sys:String>Firmware Image 2</sys:String>
        </ComboBox.Items>
    </ComboBox>

<ComboBox SelectedItem="{Binding SelectedImage}">
    <ComboBox.Items>
        <ComboBoxItem Content="DisplayText1" />
        <ComboBoxItem Content="DisplayText2" />
    </ComboBox.Items>
</ComboBox>

//to get the text use: (SelectedImage as ComboBoxItem).Content
public object SelectedImage { get; set; }

 <ComboBox Grid.Row="1"
          Width="150"
          Height="30"
          ToolTip="Store Identification"
          Margin="0,2,10,0"
          HorizontalAlignment="Right"
          VerticalAlignment="Top"
          Background="#FF1649A0"
          BorderBrush="White"
          Foreground="White"
           SelectedValue="{Binding SelectedImage}" >
        <ComboBox.Items>
            <sys:String>Firmware Image 1</sys:String>
            <sys:String>Firmware Image 2</sys:String>
        </ComboBox.Items>
    </ComboBox>

  xmlns:sys="clr-namespace:System;assembly=mscorlib"