c# - XamlObjectWriterException : Cannot create unknown type '{http://schemas.microsoft.com/winfx/2006/xaml/presentation}Ribbon'

Question

当我在 wpf 应用程序中添加功能区控件时出现此异常。有人可以给我一些关于如何克服它的建议吗？在我的 xaml 代码中，功能区添加在最后一个选项卡中，如您在后面的代码中所见。一切正常，当我添加功能区时问题开始了。

<Window
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:v="clr-namespace:Views;assembly=DemoDataGrid"
Title="Testing GUI app" Width="1200" Height="768">
<Grid>
    <Grid.RowDefinitions>
        <RowDefinition Height="Auto" />
        <RowDefinition Height="Auto" />
        <RowDefinition Height="*" />
        <RowDefinition Height="Auto" />
    </Grid.RowDefinitions>
    <Menu Margin="0" Grid.Row="0" VerticalAlignment="Top" Background="#FFEAF1FB">
        <MenuItem Header="File" IsTabStop="False">
            <MenuItem Header="Exit" Command="{Binding FileExit}" />
        </MenuItem>
        <MenuItem Header="Tools" IsTabStop="False"/>
        <MenuItem Header="Help" IsTabStop="False"/>
    </Menu>
    <ToolBarTray Grid.Row="1" Background="DarkGray"/>
    <UserControl Grid.Row="2" IsTabStop="False">
        <TabControl Margin="10,50,10,10">
            <TabItem Header="Date Picker">
                <Grid Background="#FFE5E5E5">
                    <v:DatePickerView/>
                </Grid>
            </TabItem>
            <TabItem Header="Color Picker">
                <Grid Background="#FFE5E5E5">
                    <v:ColorPickerView/>
                </Grid>
            </TabItem>
            <TabItem Header="Combo Box">
                <Grid Background="#FFE5E5E5">
                    <v:ComboBoxView/>
                </Grid>
            </TabItem>
            <TabItem Header="ExtendedDataGrid">
                <Grid Background="#FFE5E5E5">
                    <v:DGridXtendedView/>
                </Grid>
            </TabItem>
            <TabItem Header="RibbonMenu">
                <Grid Background="#FFE5E5E5">
                    <Ribbon/>
                </Grid>
            </TabItem>
        </TabControl>
    </UserControl>
    <StatusBar Grid.Row="3" VerticalAlignment="Bottom"  Background="#FFEAF1FB">
        <StatusBarItem Content="{Binding User}"/>
        <Separator />
        <StatusBarItem Content="{Binding Status}"/>
    </StatusBar>
</Grid>

Answer 1

1.添加对 System.Windows.Controls.Ribbon

的引用

2。将命名空间添加到您的 xaml 文件

xmlns:ribbon="clr-namespace:System.Windows.Controls.Ribbon;assembly=System.Windows.Controls.Ribbon"