first, non-strong type:
Controller:
viewdata["Areid"] = from A in Rp. Getarea ()
Select New SelectListItem {
Text=a.areaname,
Value=a.areaid.tostring ()
};
View:
@Html. DropDownList ("Areid")
You can also add a default option: @Html. DropDownList ("Areid", "Please select");
second, strong type:
Dropdownlistfor frequently uses overloads of two parameters, the first is the name of the generated select, and the second is the data used to bind the data source to Dropdownlistfor
Modle:
public class Settingsviewmodel
{
Repository RP =new Repository ();
public string ListName {get; set;}
Public ienumerable<selectlistitem> getselectlist ()
{
var selectlist = Rp. Getarea (). Select (A = new SelectListItem {
Text=a.areaname,
Value=a.areaid.tostring ()
});
return selectlist;
}
}
Controller:
Public ActionResult Index ()
{
Return View (New Settingsviewmodel ());
}
View:
@model Mvc3Applicationtest2.Models.SettingsViewModel
@Html. Dropdownlistfor (M=>m.listname,model.getselectlist (), "Please select")
Drop-down boxes html.dropdownlist and dropdownlistfor regular usage
