asp.net-mvc-3 – 向@ Html.ValidationSummary添加错误消息

function YourCustomValidator() {
    // do your validation logic here via JavaScript
    return true; // or false based on your validation logic
}
$(document).ready(function () {
    // take your own form-SELEctor like ("form",this)
    $("form",this).first().submit(function () {
        return (YourCustomValidator() && $(this).valid());
    });
});

或在服务器端：

认为你有这样的模型：

public class Test {
    [required]
    [StringLength(100)]
    public String FullName { get; set; }
}

当您验证它时：

if(ModelState.IsValid) { // default validations run here
    if(/* some custom validations run here,there is an error about "FullName" */){
        // you should set the "key" for Model-Error to "FullName"
        ModelState.AddModelError("FullName","error-message goes here")
    }
    if(/* some custom validations run here,the error is global,not on "FullName" */){
        // you should set the "key" for Model-Error to an empty-String
        ModelState.AddModelError("","error-message goes here")
    }
    // also you can test for model-errors again like this:
    if(ModelState.IsValid) { // if you add any error above,this will be "false"

    }
}