Wpf 使用ResourceDictionary时无法使用XAML绑定到类实例的属性_Wpf_Xaml_Resourcedictionary

Wpf 使用ResourceDictionary时无法使用XAML绑定到类实例的属性

wpf xaml

Wpf 使用ResourceDictionary时无法使用XAML绑定到类实例的属性,wpf,xaml,resourcedictionary,Wpf,Xaml,Resourcedictionary,在我的WPF项目中，我使用自定义我的main窗口。当我尝试绑定Person.xaml.cscode-behind类的Person.xaml文件的属性LastName时，出现以下错误，如下所示：异常：找不到名为“prs”的资源。资源名称区分大小写备注该错误似乎是由于下面显示的ResourceDictionary.xaml文件中的引用引起的。并且错误发生在第InitializeComponent（）行如果我在App.xaml文件中引用，则会发生完全相同的错误但是，如果我不使用Resourc

在我的

WPF

项目中，我使用自定义我的

main窗口

。当我尝试绑定

Person.xaml.cs

code-behind类的

Person.xaml

文件的属性

LastName

时，出现以下错误，如下所示：

异常：找不到名为“prs”的资源。资源名称区分大小写

备注

该错误似乎是由于下面显示的

ResourceDictionary.xaml

文件中的

引用引起的。并且错误发生在第

InitializeComponent（）行类在下面显示的ResourceDictionary.xaml.cs`文件中定义的按钮单击事件中实例化时，Persona.xaml.cs
文件的code>


如果我在App.xaml
文件中引用
，则会发生完全相同的错误
但是，如果我不使用ResourceDictionary
自定义mainWindow
而在App.xaml文件中引用
，则不会发生错误
问题：我可能做错了什么，如何在仍然使用ResourceDictionary自定义主窗口的情况下解决问题
Person.xaml：
<Window x:Class="MyProject.Commands.Person"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
       xmlns:local="clr-namespace:MyProject">

    <Grid>
        <Label>Last Name:</Label>
        <TextBox Name="txtLastName">
            <TextBox.Text>
                <Binding Path="LastName" Source="{StaticResource prs}" UpdateSourceTrigger="PropertyChanged">
                </Binding>
            </TextBox.Text>
        </TextBox>
 </Grid>
</Window

namespace SciDoxViewer
{
    public partial class WindowStyle : ResourceDictionary
    {
        public WindowStyle()
        {
            InitializeComponent();
        }
     
        //Here: click events for other buttons in above ResourceDictionary.xaml file
        ...............
        ...............
        private void btnAddPerson_Click(object sender, RoutedEventArgs e)
        {
                Person person = new Person(); //This line first takes you to `InitializeComponent();` of the constructor of `Person` class where the above error occurs.

                if (person.ShowDialog() == true)
                {
                    .....
                }
        }
  }
}

<Window x:Class="MyProject.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:MyProject"
        mc:Ignorable="d"
        Style="{StaticResource CustomWindowStyle}">
<Grid>
....
</Grid>
</Window>

<Application x:Class="MyProject.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:local="clr-namespace:SciDoxViewer.Commands"
             xmlns:main="clr-namespace:MyProject"
             StartupUri="MainWindow.xaml">

    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="pack://application:,,,/MyProject;component/WindowStyle.xaml"/>
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>       
    </Application.Resources>
</Application>

ResourceDictionary.xaml：数据源
在第一行中引用
<ResourceDictionary x:Class="MyProject.WindowStyle"
                    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                    xmlns:local="clr-namespace:MyProject.Commands">

<local:Person x:Key="pers"/>

    <Style x:Key="CustomWindowStyle" TargetType="{x:Type Window}">
        <Setter Property="WindowChrome.WindowChrome">
            <Setter.Value>
                <WindowChrome CaptionHeight="30"
                              CornerRadius="4"
                              GlassFrameThickness="0"
                              NonClientFrameEdges="None"
                              ResizeBorderThickness="5"
                              UseAeroCaptionButtons="False" />
            </Setter.Value>
        </Setter>
        <Setter Property="BorderBrush" Value="Black" />
        <Setter Property="Background" Value="Gray" />
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type Window}">
                    <Grid>
                        <Border Background="{TemplateBinding Background}"
                                BorderBrush="{TemplateBinding BorderBrush}"
                                BorderThickness="5,30,5,5">
                            <AdornerDecorator>
                                <ContentPresenter />
                            </AdornerDecorator>
                        </Border>

                        <DockPanel Height="30"
                                   VerticalAlignment="Top"
                                   LastChildFill="False">

                            <TextBlock Margin="5,0,0,0"
                                       VerticalAlignment="Center"
                                       DockPanel.Dock="Left"
                                       FontSize="16"
                                       Foreground="White"
                                       Text="{TemplateBinding Title}" />

                            <Button x:Name="btnClose"
                                    Width="15"
                                    Margin="5"
                                    Click="CloseClick"
                                    Content="X"
                                    DockPanel.Dock="Right"
                                    WindowChrome.IsHitTestVisibleInChrome="True" />


                            <Button x:Name="btnRestore"
                                    Width="15"
                                    Margin="5"
                                    Click="MaximizeRestoreClick"
                                    Content="#"
                                    DockPanel.Dock="Right"
                                    WindowChrome.IsHitTestVisibleInChrome="True" />

                            <Button x:Name="btnMinimize"
                                    Width="15"
                                    Margin="5"
                                    VerticalContentAlignment="Bottom"
                                    Click="MinimizeClick"
                                    Content="_"
                                    DockPanel.Dock="Right"
                                    WindowChrome.IsHitTestVisibleInChrome="True" />

                            <Button x:Name="btnAddPerson"
                                    Width="15"
                                    Margin="5"
                                    VerticalContentAlignment="Bottom"
                                    Click="btnAddPerson_Click"
                                    Content="_"
                                    DockPanel.Dock="Right"
                                    WindowChrome.IsHitTestVisibleInChrome="True" />

                        </DockPanel>

                    </Grid>

                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</ResourceDictionary>

更新[日期：2020年11月5日]
WindowStyle.xaml
在main窗口中引用（而不是在Person.xaml中），如下所示。
主窗口.xaml：
<Window x:Class="MyProject.Commands.Person"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
       xmlns:local="clr-namespace:MyProject">

    <Grid>
        <Label>Last Name:</Label>
        <TextBox Name="txtLastName">
            <TextBox.Text>
                <Binding Path="LastName" Source="{StaticResource prs}" UpdateSourceTrigger="PropertyChanged">
                </Binding>
            </TextBox.Text>
        </TextBox>
 </Grid>
</Window

namespace SciDoxViewer
{
    public partial class WindowStyle : ResourceDictionary
    {
        public WindowStyle()
        {
            InitializeComponent();
        }
     
        //Here: click events for other buttons in above ResourceDictionary.xaml file
        ...............
        ...............
        private void btnAddPerson_Click(object sender, RoutedEventArgs e)
        {
                Person person = new Person(); //This line first takes you to `InitializeComponent();` of the constructor of `Person` class where the above error occurs.

                if (person.ShowDialog() == true)
                {
                    .....
                }
        }
  }
}

<Window x:Class="MyProject.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:MyProject"
        mc:Ignorable="d"
        Style="{StaticResource CustomWindowStyle}">
<Grid>
....
</Grid>
</Window>

<Application x:Class="MyProject.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:local="clr-namespace:SciDoxViewer.Commands"
             xmlns:main="clr-namespace:MyProject"
             StartupUri="MainWindow.xaml">

    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="pack://application:,,,/MyProject;component/WindowStyle.xaml"/>
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>       
    </Application.Resources>
</Application>


....

App.xaml：
<Window x:Class="MyProject.Commands.Person"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
       xmlns:local="clr-namespace:MyProject">

    <Grid>
        <Label>Last Name:</Label>
        <TextBox Name="txtLastName">
            <TextBox.Text>
                <Binding Path="LastName" Source="{StaticResource prs}" UpdateSourceTrigger="PropertyChanged">
                </Binding>
            </TextBox.Text>
        </TextBox>
 </Grid>
</Window

namespace SciDoxViewer
{
    public partial class WindowStyle : ResourceDictionary
    {
        public WindowStyle()
        {
            InitializeComponent();
        }
     
        //Here: click events for other buttons in above ResourceDictionary.xaml file
        ...............
        ...............
        private void btnAddPerson_Click(object sender, RoutedEventArgs e)
        {
                Person person = new Person(); //This line first takes you to `InitializeComponent();` of the constructor of `Person` class where the above error occurs.

                if (person.ShowDialog() == true)
                {
                    .....
                }
        }
  }
}

<Window x:Class="MyProject.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:MyProject"
        mc:Ignorable="d"
        Style="{StaticResource CustomWindowStyle}">
<Grid>
....
</Grid>
</Window>

<Application x:Class="MyProject.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:local="clr-namespace:SciDoxViewer.Commands"
             xmlns:main="clr-namespace:MyProject"
             StartupUri="MainWindow.xaml">

    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="pack://application:,,,/MyProject;component/WindowStyle.xaml"/>
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>       
    </Application.Resources>
</Application>


您应该从资源字典中删除Person
资源，因为您已经在单击事件处理程序中创建了Person
窗口的另一个实例。该资源无论如何都没有被使用。
我在您发布的代码中没有看到任何东西会将WindowStyle
资源字典放入要引用该资源的Person
窗口的搜索路径中。你凭什么认为它应该起作用？另外，请不要省略代码示例的部分。如果省略的代码不重要，请不要提及它。请提供一个自包含、最小且完整的实际值。@PeterDuniho在阅读了您的评论之后，我刚刚添加了Person.xaml
文件的
标记中缺少的部分。这不起作用。不能让XAML为的Person类包含使用同一类的实例作为源的绑定。CustomWindowsStyle应该在Person.xaml中声明。@nam:ResourceDictionary
在哪里合并/引用到窗口？@nam:Yes，这是正确的。