模型中 2 个不同属性的相同远程验证

Same Remote Validation for 2 different properties in a model

我在一个模型中有 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;}

控制器中的远程验证功能

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;

}

这行不通。你能帮我解决这个问题吗?

调用远程验证时,querystring键是字段的名称,例如在你的情况下 /Contracts/ValidateContractor1?Cntrctr1=foo。您需要一个更动态的解决方案。

实现此目的的一种方法是在 ValidateContractor1 中不包含任何参数,而是只获取第一个查询字符串值。这未经测试,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);}
}

添加到 Rhumborls 答案中,如果您发现他的方法不起作用,可能是因为您使用的是表格;如果是这种情况,您需要使用 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);}
}