[英]DataAnnotationsModelBinder with MVC2 RTM
Trying to validate models with DataAnnotations but DefaulModelBinder overrides my Required property error messages and never uses my error messages for invalid data entry. 尝试使用DataAnnotations验证模型,但DefaulModelBinder会覆盖我的Required属性错误消息,并且永远不会将我的错误消息用于无效数据输入。 Always show 'value' is invalid for 'property name'.
始终显示“值”对于“属性名称”无效。
In another question I saw that MVC 2 uses DataAnnotationsModelBinder but I couldn't find any class in MVC 2 binaries. 在另一个问题中,我看到MVC 2使用DataAnnotationsModelBinder,但是在MVC 2二进制文件中找不到任何类。 I downloaded the source for MVC futures and changed some source to compile it for .Net 4.0 but although I had success to compile, it has compatability problems and doesn't work as expected.
我下载了MVC期货的源代码,并更改了一些源代码以针对.Net 4.0进行编译,但是尽管我可以成功进行编译,但是它存在兼容性问题,并且无法按预期工作。
Any help is aprreciated. 任何帮助表示赞赏。
Do not try to use the DataAnnotationsModelBinder with MVC 2 RTM. 不要尝试将DataAnnotationsModelBinder与MVC 2 RTM一起使用。 MVC 2 RTM's DefaultModelBinder already contains all of the logic that was present in the DataAnnotationsModelBinder sample.
MVC 2 RTM的DefaultModelBinder已经包含DataAnnotationsModelBinder示例中存在的所有逻辑。
This is happening because an exception is thrown in the DefaultModelBinder
when it tries to cast the input value to the type of the receiving model property. 发生这种情况是因为,当
DefaultModelBinder
尝试将输入值转换为接收模型属性的类型时,将引发异常。
You can either use string
as type for the properties on the receiving model or make a custom Model binder by implementing IModelBinder
and handle the validation. 您可以将
string
用作接收模型上属性的类型,也可以通过实现IModelBinder
并处理验证来创建自定义模型绑定器。
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