具有实体框架的mvc3中dropdownlist的必需验证器 [英] Required validator for dropdownlist in mvc3 with entity frame work

问题描述

嘿，我很想念，我不知道mvc3中dropdownlist所需的验证器.

Hey, i am munish, i don''t know the required validator for dropdownlist in mvc3

推荐答案

你好，想念，

为此，您需要在模型中添加一个关键属性.并将您的下拉列表与该关键属性绑定到视图中.

然后在您在模型中定义的属性上方添加[Required(ErrorMessage =")]属性.请参阅下面的快速示例

在模型中

公共列表< selectedlistitem>值{get; set;}

[Required(ErrorMessage =选择值")]
public int KerProperty {get; set;}


可见

@ Html.Dropdownfor(model => model.KerProperty，Model.Values)
@ Html.ValidationMessageFor(model => model.KerProperty)

Hello munish,

For this you need to add one key property in your model. and bind your dropdownlist with that key property in view.

then add [Required(ErrorMessage="")] attribute above the property which is you have define in model. refer below quick example

In Model

public List<selectedlistitem> Values{get;set;}

[Required(ErrorMessage="Select the Value")]
public int KerProperty{get;set;}


In View

@Html.Dropdownfor(model=>model.KerProperty,Model.Values)
@Html.ValidationMessageFor(model=>model.KerProperty)

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