[英]View with complex view model
我正在使用ASP.NET MVC 3,並且具有如下視圖模型:
public class RegistrationViewModel
{
public IList<LicenseViewModel> Licenses { get; set; }
}
public class LicenseViewModel
{
public string LicensedState { get; set; }
public string LicenseType { get; set; }
}
可以在多個州為用戶授予許可,並且LicensedState和LicenseType值都應在網格頁腳上顯示為下拉列表。 如何使用RegistrationViewModel創建視圖?
該模型
public class RegistrationViewModel
{
public IList<LicenseViewModel> Licenses { get; set; }
}
public class LicenseViewModel
{
public string LicensedState { get; set; }
public string LicenseType { get; set; }
public IEnumerable<LicenseState> LicenseStates { get; set; }
public IEnumerable<LicenseType> LicenseTypes { get; set; }
}
風景
@model RegistrationViewModel
@foreach (var item in Model)
{
@Html.DropDownListFor(model => model.LicensedState, new SelectList(item.LicenseStates, item.LicenseState))
@Html.DropDownListFor(model => model.LicenseType, new SelectList(item.LicenseTypes, item.LicenseType))
}
您可以使用如下視圖模型:
public class LicenseViewModel
{
public IEnumerable<SelectListItem> LicensedState { get; private set; }
public IEnumerable<SelectListItem> LicenseType { get; private set; }
public LicenseViewModel(string licensedState = null, string licenseType = null)
{
LicensedState = LicensedStatesProvider.All().Select(s=> new SelectListItem
{Selected = licensedState!= null && s == licensedState, Text = s, Value = s} );
LicenseType = LicenseTypesProvider.All().Select(t => new SelectListItem
{ Selected = licenseType != null && t == licenseType, Text = t, Value = t });
}
}
LicensedStatesProvider
和LicenseTypesProvider
是獲取所有LicensedStates和LicenseTypes的簡單方法,這取決於您如何獲取它們。
而且,您會看到類似以下的內容:
@foreach (var license in Model.Licenses)
{
//other stuff...
@Html.DropDownList("LicensedState", license.LicensedState)
@Html.DropDownList("LicenseType", license.LicenseType)
}
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