问题描述
我已经使用静态DROPDOWNLIST值的模型视图并试图从剃刀在MVC4调用print方法。但是,我不能选择DROPDOWNLIST值传递给德法行动,而我可以通过输入字段的其它参数。你能告诉我在哪里出错了?
ApplicantViewModel:
公共类ApplicantViewModel
{
公共IEnumerable的<申请人GT;申请人{搞定;组; } // codeS为DROPDOWNLIST值
公共字符串的SelectedValue {搞定;组; }
公共IEnumerable的< SelectListItem>值
{
得到
{
返回新的[]
{
新SelectListItem {值=PDF,文本=PDF},
新SelectListItem {值=创先争优,文本=创先争优},
新SelectListItem {值=字,文本=字}
};
}
}
}
ApplicantController:
公开的ViewResult报告()
{
VAR模型=新ApplicantViewModel();
返回查看(模型);
}公众的ActionResult RenderReport(字符串类型,字符串名称,字符串文件名,字符串数据源,字符串表,字符串过滤器)
{
// codeS渲染报告
...
}
Reporting.cshtml:
@model MyProject.Models.ApplicantViewModel@using(Html.BeginForm())
{
< DIV>
@ Html.DropDownListFor(型号=> model.SelectedValue,Model.Values - 选择一个选项 - 新{类型= Model.SelectedValue,名称=类型,ID =输入}) <输入类型=按钮称号=渲染报告VALUE =P的onclick ='location.href=@Url.Action(RenderReport,申请人,
新{
// TYPE =PDF,//如果我在这里没问题的指定类型值。但我想通过DROPDOWNLIST被assined值
键入= Model.SelectedValue,//它传递的SelectedValue = null来控制器
NAME =报告1
文件名=申请表,
数据源=ApplicantDataset
表=ApplicantsView
过滤器=大卫ID = item.ID})/>
< / DIV>
}
}
名称您下拉列表必须在你的行动等于参数名。
编辑:
我再说一遍,你code,所有的正常工作,如果有RenderReport 字符串的SelectedValue
参数
公众的ActionResult RenderReport(字符串的SelectedValue,字符串名称,字符串文件名,字符串数据源,字符串表,字符串过滤器)
{
// codeS渲染报告
...
}
或使用 @ Html.DropDownList 并设置自定义命名为DropDownList的
@ Html.DropDownList(类型,Model.Values - 选择一个选项 - 新{ID =输入})
I have used a ModelView for static Dropdownlist values and tried to call print method from Razor in MVC4. However, I cannot pass the selected Dropdownlist value to teh Action method while I could pass the other parameters in input field. Could you please tell me where I made mistake?
ApplicantViewModel:
public class ApplicantViewModel
{
public IEnumerable<Applicant> Applicants { get; set; }
//Codes for Dropdownlist values
public string SelectedValue { get; set; }
public IEnumerable<SelectListItem> Values
{
get
{
return new[]
{
new SelectListItem { Value = "pdf", Text = "Pdf" },
new SelectListItem { Value = "excel", Text = "Excel" },
new SelectListItem { Value = "word", Text = "Word" }
};
}
}
}
ApplicantController:
public ViewResult Reporting()
{
var model = new ApplicantViewModel();
return View(model);
}
public ActionResult RenderReport(string type, string name, string fileName, string dataSource, string table, string filter)
{
//Codes for rendering report
...
}
Reporting.cshtml:
@model MyProject.Models.ApplicantViewModel
@using (Html.BeginForm())
{
<div>
@Html.DropDownListFor(model => model.SelectedValue, Model.Values, "-- select an option --", new { type=Model.SelectedValue, name = "type", id = "type"})
<input type="button" title="Render Report" value="P" onclick="'location.href=@Url.Action("RenderReport", "Applicant",
new { "
//type="pdf", //if I assign type value at here no problem. But I want the value to be assined by Dropdownlist
type=Model.SelectedValue, //It pass SelectedValue = null to the Controller
name="Report1",
fileName="Applicant list",
dataSource="ApplicantDataset",
table="ApplicantsView",
filter="David"id = item.ID }) "/>
</div>
}
}
Name you dropdown list must be equals parameter name in your Action.
Edit:I repeat you code, all work fine if RenderReport have string SelectedValue
parameter
public ActionResult RenderReport(string SelectedValue, string name, string fileName, string dataSource, string table, string filter)
{
//Codes for rendering report
...
}
or Use @Html.DropDownList and set custom Name for DropDownList
@Html.DropDownList("type", Model.Values, "-- select an option --", new {id = "type"})
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