ASP.NET MVC 输出ModelState中的所有错误信息:
StringBuilder sb = new StringBuilder ();
var Keys = ModelState.Keys.ToList();
foreach (var key in Keys)
{
var errors = ModelState[key].Errors.ToList();
//将错误描述添加到sb中
foreach (var error in errors)
{
sb.AppendLine(error.ErrorMessage);
}
}
ViewBag.err = sb.ToString();
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