XML 命名空间 'clr-namespace:YYY' 中不存在标记 'XXX' [英] The tag 'XXX' does not exist in XML namespace 'clr-namespace:YYY'

问题描述

我已经实现了一个转换器来将 Int32 转换为 String 以便能够将属性绑定到文本框.

I have implemented a converter to convert Int32 to String to be able to binding a property to a textBox.

我在命名空间 MyApp.Converters 中实现了这个转换器，它被称为 Int32ToStringConverter.

I implement this converter in the namespace MyApp.Converters and it is called Int32ToStringConverter.

然后，在我的 axml 中，我添加了对转换器的引用，如下所示:

Then, in my axml I add the reference to my converter as follow:

<Window x:Class="MusicaDB.Views.PrincipalView"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:i="namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"
        **xmlns:converter="clr-namesapce:MyApp.Converters, aseembly=MyApp**">

后来，在 windows.Resources 我有:

Later, in windows.Resources I have:

<Window.Resources>
        <**converter:Int32ToStringConverter** x:Key="Int32ToStringConverter" />
</Window.Resources>

我收到错误消息，即命名空间 MyApp.Converters,assembly=MyApp 中不存在标记 Int32ToString 转换器.

I get the error that the tag Int32ToString converter does not exist in the namespace MyApp.Converters,assembly=MyApp.

我在本地硬盘中有项目，在项目属性中，目标 .NET 是框架 4.0，而不是框架 4.0 客户端配置文件，我尝试清除解决方案并重新编译，但问题仍然存在.

I have the project in the local hard drive, in the project properties, the destination .NET is framework 4.0, not framework 4.0 client profile and I try to clear the solution and recompile but the problem persists.

主要是，这是我一直找到的两个解决方案，但没有解决我的问题.

Mainly, this is the two solutions that I always find, but don't resolve my problem.

推荐答案

此处需要进行三个修复:

Three fixes to make here:

1. 没有空格 -> xmlns:converter="clr-namesapce:MyApp.Converters,aseembly=MyApp"
2. 没有拼写错误 -> xmlns:converter="clr-namespace:MyApp.Converters,assembly=MyApp"
3. 右分隔符 -> xmlns:converter="clr-namespace:MyApp.Converters;assembly=MyApp"

来自文档:

请注意，将 clr-namespace 标记与其值分隔开的字符是冒号 (:)，而将 assembly 标记与其值分隔开的字符是等号(=).在这两个标记之间使用的字符是分号.此外，请勿在声明中的任何地方包含任何空格.

Note that the character separating the clr-namespace token from its value is a colon (:) whereas the character separating the assembly token from its value is an equals sign (=). The character to use between these two tokens is a semicolon. Also, do not include any whitespace anywhere in the declaration.

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