ASP.Net MVC:控制器中的访问验证错误消息? [英] ASP.Net MVC: Access validation error messages in the controller?

问题描述

是否有一种方法可以访问控制器中的验证错误消息.我在ModelState的任何地方都找不到它们.

Is there a way to access validation error messages in the controller. I'm not finding them anywhere in ModelState.

推荐答案

在ModelState上进行迭代用于此目的. 遵循以下原则:

Iterating over ModelState is used for this purpose. Something along these lines:

if (!ModelState.IsValid)
{
    StringBuilder result = new StringBuilder();

    foreach (var item in ModelState)
    {
        string key = item.Key;
        var errors = item.Value.Errors;

        foreach (var error in errors)
        {
            result.Append(key + " " + error.ErrorMessage);
        }
    }

    TempData["Errors"] = result.ToString();
}

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