如何在mvc 4.0中获取Dropdownlist选择的值 [英] How to get Dropdownlist selected value in mvc 4.0

问题描述

我是MVC的新手。我希望控制器上的下拉列表选择值提交按钮Click.How得到这个？下面是我的代码



COntroller： -

 public ActionResult BindDropdown（）
 {
 List <   SelectListItem  >  obj = new List <   SelectListItem  > （）; 
 obj = TU.Getlist（）; 
 
 ViewBag.StateType = obj; 
 return View（）; 
} 

 [HttpPost] 
  public  ActionResult Bindgrid（）
 {
  int  id = 转换 .ToInt32（请求[  StateType]。ToString （））; 
  int  id = Convert.ToInt32（Request.Form [  StateType]的ToString（））; 
} 

查看:: -

用户名：

@ Html.DropDownList（StateType，请选择用户）

@using（Html.BeginForm（ Bindgrid，新））

{

< input type =submitvalue =Get Queriesstyle ='width：300px'/>

}

解决方案

你好，

你可以在HttpPost方法中传递

 FormCollection来获取值。< br /> 
< pre lang =cs> [HttpPost]< br /> 
 public ActionResult Bindgrid（FormCollection frm）< br /> 
 {< br /> 
 var id = frm [StateType];< br /> 
< br /> 
 //做其他事情< br /> 
返回View（）;< br /> 
}< br /> 
< / pre> 

Hi,

I am novice to MVC. I want to get dropdownlist selected value on Controller on submit button Click.How to get this?below is my code

COntroller:-

public ActionResult BindDropdown()
       {
           List<SelectListItem> obj = new List<SelectListItem>();
           obj = TU.Getlist();

           ViewBag.StateType = obj;
           return View();
       }

[HttpPost]
       public ActionResult Bindgrid()
       {
           int id = Convert.ToInt32(Request["StateType"].ToString());
          int  id =Convert.ToInt32( Request.Form["StateType"].ToString());
}

VIEW::-

User Name:
@Html.DropDownList("StateType", "Please select an User")
@using (Html.BeginForm("Bindgrid", "New"))
{
<input type="submit" value="Get Queries" style='width:300px'/>
}

解决方案

Hello ,
You may pass the

FormCollection in the HttpPost  method  to get the value.<br />
<pre lang="cs">[HttpPost]<br />
public ActionResult Bindgrid(FormCollection frm)<br />
{<br />
    var id= frm["StateType"];<br />
    <br />
    //do other stuffs <br />
    return View();<br />
}<br />
</pre>

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