Question

我在模型中有2个属性contractor1和contractor2，如何对它们使用单个远程验证

[Display(Name ="Contractor 1:")]
[Remote("ValidateContractor", "Contracts")]
public string Cntrctr1 {get; set;}

[Display(Name = "Contractor 2:")]
[Remote("ValidateContractor", "Contracts")]`enter code here`
public string Cntrctr2 {get; set;}

Controller中的远程验证功能

public JsonResult ValidateContractor1(string Cntrctr)
{
    var valid = Validations.ValidateContractor(Cntrctr);
    if (!valid)
    {return Json("Enter correct contractor", JsonRequestBehavior.AllowGet);}
    else{return Json(true, JsonRequestBehavior.AllowGet);}
}
public static bool ValidateContractor(string CntrctrNM)
{
    bool valid;
    using (var entities = new CAATS_Entities())
    {
        var result = (from t in entities.PS_VENDOR_V
                      where (t.VNDR_1_NM).Equals(CntrctrNM) 
                      select t).FirstOrDefault();
        if (result != null)
        {
            valid = true;
        }
        else
        {
            valid = false;
        }
    }
    return valid;

}

这不起作用。你能帮帮我吗？

Answer 1

调用远程验证时，查询字符串键是字段的名称，例如在您的情况下/Contracts/ValidateContractor1?Cntrctr1=foo。您需要一个更加动态的解决方案。

您可以这样做的一种方法是在ValidateContractor1中没有任何参数，而只是获取第一个查询字符串值。这未经过测试，但应该适合您：

public JsonResult ValidateContractor1()
{
   // gets the name of the property being validated, e.g. "Cntrctr1"
   string fieldName = Request.QueryString.Keys[0];

   // gets the value to validate
   string Cntrctr = Request.QueryString[fieldName];

   // carry on as before
   var valid = Validations.ValidateContractor(Cntrctr);
   if (!valid)
   {return Json("Enter correct contractor", JsonRequestBehavior.AllowGet);}
   else{return Json(true, JsonRequestBehavior.AllowGet);}
}

Answer 2

如果你发现他的方法不起作用，加入Rhumborls答案可能是因为你正在使用表格;如果是这种情况，则需要使用Form属性而不是QueryString。

public JsonResult ValidateContractor()
{
    // gets the name of the property being validated, e.g. "Cntrctr1"
    string fieldName = Request.Form.Keys[0];

    // gets the value to validate
    string Cntrctr = Request.Form[fieldName];

    // carry on as before
    var valid = Validations.ValidateContractor(Cntrctr);
    if (!valid)
    {return Json("Enter correct contractor", JsonRequestBehavior.AllowGet);}
    else{return Json(true, JsonRequestBehavior.AllowGet);}
}

对模型中的2个不同属性进行相同的远程验证

2 个答案: