出现绑定错误但没有绑定集？

发布于 2024-12-11 23:24:10 字数 663 浏览 0 评论 0原文

我的 WPF 窗口中有这个控件；

<TextBlock Name="txtMyTextBlock"
          Text="{x:Static Resources:Strings.SOME_LABEL_IDENTIFIER}"
          Margin="10,10,10,0" HorizontalAlignment="Left" VerticalAlignment="Top"
          Style="{StaticResource WindowTitleStyle}" />

当加载窗口时，我在输出窗口中收到此错误；

Windows.Data 错误：40：BindingExpression 路径错误：“文本”属性在“对象”“MyViewModelClass”(HashCode=7754709)”上找不到。绑定表达式：路径=文本； DataItem='MyViewModelClass' （哈希码=7754709）；目标元素是“TextBlock” (名称='txtMyTextBlock');目标属性为“NoTarget”（类型“Object”）

据我所知，TextBlock“txtMyTextBlock”上的“Text”属性设置为嵌入式资源字符串...为什么我会在这里收到绑定错误？

原文

I have this control in my WPF window;

<TextBlock Name="txtMyTextBlock"
          Text="{x:Static Resources:Strings.SOME_LABEL_IDENTIFIER}"
          Margin="10,10,10,0" HorizontalAlignment="Left" VerticalAlignment="Top"
          Style="{StaticResource WindowTitleStyle}" />

and when the window is loaded, I get this error in the Output Window;

Windows.Data Error: 40 : BindingExpression path error: 'Text' property
not found on 'object' ''MyViewModelClass' (HashCode=7754709)'.
BindingExpression:Path=Text; DataItem='MyViewModelClass'
(HashCode=7754709); target element is 'TextBlock'
(Name='txtMyTextBlock'); target property is 'NoTarget' (type 'Object')

As far as I can tell, the 'Text' property on the TextBlock 'txtMyTextBlock' is set to an Embedded Resource string... why am I getting binding errors here?

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演多会厌 2024-12-18 23:24:10

在您的 Text="" 中，您绑定到静态资源。这是可以做到的，但你的语法是错误的。你想要的是这样的：

<Window.Resources>
   <System:String x:Key="FirstName">Jared</System:String>
</Window.Resources>

<TextBox Text="{StaticResource FirstName}"/>

in your Text="" you are binding to a static resource. this can be done, but your syntax is wrong. what you want is something like this:

<Window.Resources>
   <System:String x:Key="FirstName">Jared</System:String>
</Window.Resources>

<TextBox Text="{StaticResource FirstName}"/>

here is a good walk-though/tutorial

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來不及說愛妳 2024-12-18 23:24:10

问题不应该出现在这段代码中，x:Static 不会导致绑定错误，我怀疑您应用的样式中存在失败的绑定，例如

<Style x:Key="WinTitleStyle" TargetType="TextBlock">
    <Setter Property="Text" Value="{Binding ThisFails}" />
</Style>
<!-- ... -->
<TextBlock Name="myTB" Text="{x:Static prop:Resources.WinTitle}"
           Style="{StaticResource WinTitleStyle}"/>

即使样式设置器没有优先级我从中收到错误绑定：

System.Windows.Data 错误：40：BindingExpression 路径错误：
在“对象”“MainWindow”上找不到“ThisFails”属性
（名称='窗口'）'。 BindingExpression:Path=ThisFails;
DataItem='主窗口'（名称='窗口'）；目标元素是“TextBlock”
(名称='myTB');目标属性是“文本”（类型“字符串”）

The problem should not be in this bit of code, x:Static does not cause binding errors, i suspect that there is a failing binding in the style you applied, e.g.

<Style x:Key="WinTitleStyle" TargetType="TextBlock">
    <Setter Property="Text" Value="{Binding ThisFails}" />
</Style>
<!-- ... -->
<TextBlock Name="myTB" Text="{x:Static prop:Resources.WinTitle}"
           Style="{StaticResource WinTitleStyle}"/>

Even though the style setter does not have precedence i get an error from that binding:

System.Windows.Data Error: 40 : BindingExpression path error:
'ThisFails' property not found on 'object' ''MainWindow'
(Name='Window')'. BindingExpression:Path=ThisFails;
DataItem='MainWindow' (Name='Window'); target element is 'TextBlock'
(Name='myTB'); target property is 'Text' (type 'String')

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