Asp.net mvc 将dropdownlist与数据库表绑定并从MVC中获取所选项
我是asp.NETMVC新手 我有一个员工注册视图,其中有一个部门的Asp.net mvc 将dropdownlist与数据库表绑定并从MVC中获取所选项,asp.net-mvc,html-select,dropdownlistfor,Asp.net Mvc,Html Select,Dropdownlistfor,我是asp.NETMVC新手 我有一个员工注册视图,其中有一个部门的下拉列表,我想将下拉列表绑定到数据库表tblDepartment,我已经完成了。但是我不知道如何在post back上获取列表中的select项 员工控制员 [HttpGet] public ActionResult AddEmployee() { ViewBag.Departments = new SelectList(_department.GetAll(), "id", "name"); return Vi
下拉列表
,我想将下拉列表
绑定到数据库表tblDepartment
,我已经完成了。但是我不知道如何在post back
上获取列表中的select项
员工控制员
[HttpGet]
public ActionResult AddEmployee()
{
ViewBag.Departments = new SelectList(_department.GetAll(), "id", "name");
return View(_employee.Get());
}
[HttpPost]
public ActionResult AddEmployee(FormCollection data)
{
var emp = _employee.Get();
emp.name = data["name"];
emp.age = Convert.ToInt32(data["age"]);
emp.dept_id = Convert.ToInt32(data["dept_id"]); // return dept_id 0 always.
emp.city = data["city"];
_employee.Insert(emp);
return RedirectToAction("Index");
}
查看
@using (Html.BeginForm())
{
@Html.AntiForgeryToken()
<div class="form-horizontal">
<hr />
@Html.ValidationSummary(true, "", new { @class = "text-danger" })
<div class="form-group">
@Html.LabelFor(model => model.name, "Name", htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.name, new { htmlAttributes = new { @class = "form-control" } })
@Html.ValidationMessageFor(model => model.name, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.age, "Age", htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.age, new { htmlAttributes = new { @class = "form-control" } })
@Html.ValidationMessageFor(model => model.age, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.dept_id, "Department", htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.DropDownList("Departments", "Select Department")
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.city, "City", htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.city, new { htmlAttributes = new { @class = "form-control" } })
@Html.ValidationMessageFor(model => model.city, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
<input type="submit" value="Create" class="btn btn-default" />
</div>
</div>
</div>
}
@使用(Html.BeginForm())
{
@Html.AntiForgeryToken()
@Html.ValidationSummary(true,“,new{@class=“text danger”})
@LabelFor(model=>model.name,“name”,htmlAttributes:new{@class=“controllabel col-md-2”})
@EditorFor(model=>model.name,new{htmlAttributes=new{@class=“form control”})
@Html.ValidationMessageFor(model=>model.name,“,new{@class=“text danger”})
@LabelFor(model=>model.age,“age”,htmlAttributes:new{@class=“controllabel col-md-2”})
@EditorFor(model=>model.age,new{htmlAttributes=new{@class=“form control”})
@Html.ValidationMessageFor(model=>model.age,“,new{@class=“text danger”})
@LabelFor(model=>model.dept_id,“Department”,htmlAttributes:new{@class=“controllabel col-md-2”})
@Html.DropDownList(“部门”、“选择部门”)
@LabelFor(model=>model.city,“city”,htmlAttributes:new{@class=“controllabel col-md-2”})
@EditorFor(model=>model.city,new{htmlAttributes=new{@class=“form control”})
@Html.ValidationMessageFor(model=>model.city,“,new{@class=“text danger”})
}
您正在使用名称DropDownLists定义您的dropdownlist,即@Html.dropdownlist(“部门”
),它将是下拉列表的名称,因此呈现如下:
<select name="Departments">
</select>
旁注:
您应该使用强类型助手将值直接发布到模型中,并让模型绑定器为您发挥作用,而不是手动填充模型
为此,您的助手方法将是:
在动作方法中,将参数设置为模式对象:
[HttpPost]
public ActionResult AddEmployee(Employee employee)
{
If(ModelState.IsValid)
{
_employee.Insert(employee);
return RedirectToAction("Index");
}
else
{
return View(employee);
}
}
您正在使用名称DropDownLists定义您的dropdownlist,即
@Html.dropdownlist(“部门”
),这将是下拉列表的名称,因此它将呈现为:
<select name="Departments">
</select>
旁注:
您应该使用强类型助手将值直接发布到模型中,并让模型绑定器为您发挥作用,而不是手动填充模型
为此,您的助手方法将是:
在动作方法中,将参数设置为模式对象:
[HttpPost]
public ActionResult AddEmployee(Employee employee)
{
If(ModelState.IsValid)
{
_employee.Insert(employee);
return RedirectToAction("Index");
}
else
{
return View(employee);
}
}