如何给客户端验证MVC [英] How to give client side validation MVC

问题描述

我已经在服务器端进行了验证，但我需要验证输入本身。输入错误时必须显示错误信息。

控制器

 if（！string.IsNullOrEmpty（学生） .FirstName））
 {
 string nameRegex = @^（[a-zA-Z]）+ $; 
 Regex re = new Regex（nameRegex）; 
 if（！re.IsMatch（student.FirstName））
 {
 ModelState.AddModelError（FirstName，FirstName only be letters）; 
} 
} 
 else 
 {
 ModelState.AddModelError（FirstName，FirstName is required）; 
} 

我在正则表达式中给出了验证在控制器部分中这样的确认



我需要验证名称，它应该只接受字母和数字而不是特殊字符



model

 public string FirstName {get;组; } 
 

我该怎么做？有人可以帮我这么做吗？



我尝试了什么：



已搜索但未正确完成如何操作

解决方案

;
Regex re = new Regex（nameRegex）;
if（！re.IsMatch（student.FirstName））
{
ModelState.AddModelError（FirstName，FirstName only be letters）;
}
}
else
{
ModelState.AddModelError（FirstName，FirstName is required）;
}

我已经在正则表达式中给出了验证在控制器部分中这样做



我需要对名称进行验证，它只接受字母和数字而不是特殊字符



型号

公共字符串FirstName {get; set;} 
 

怎么可以我这样做？有人可以帮我这么做吗？



我尝试了什么：



已搜索但未正确完成此操作

mvc客户端验证正则表达式 - Google搜索 [ ^ ]



MVC4中的模型验证 [ ^ ]

I have given validation on server side but I need validation on typing itself. It must show the error message when typing is wrong.
controller

if (!string.IsNullOrEmpty(student.FirstName))
            {
                string nameRegex = @"^([a-zA-Z ])+$";
                Regex re = new Regex(nameRegex);
                if (!re.IsMatch(student.FirstName))
                {
                    ModelState.AddModelError("FirstName", "FirstName only be letters");
                }
            }
            else
            {
                ModelState.AddModelError("FirstName", "FirstName is required");
            }

I have given validation in regular expression Like this in controller part

I need to give validation for name that it should accept only letters and numbers and no special characters

model

public string FirstName { get; set; }

how can I do this ?? can anyone please help me to do this ?

What I have tried:

Have searched but didn't get correctly how to do this

解决方案

"; Regex re = new Regex(nameRegex); if (!re.IsMatch(student.FirstName)) { ModelState.AddModelError("FirstName", "FirstName only be letters"); } } else { ModelState.AddModelError("FirstName", "FirstName is required"); }

I have given validation in regular expression Like this in controller part

I need to give validation for name that it should accept only letters and numbers and no special characters

model

public string FirstName { get; set; }

how can I do this ?? can anyone please help me to do this ?

What I have tried:

Have searched but didn't get correctly how to do this

mvc client validation regex - Google Search[^]

Model Validation in MVC4[^]

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