HtmlHelperSelectExtensions.DropDownListFor Method
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| DropDownListFor<TModel,TResult>(IHtmlHelper<TModel>, Expression<Func<TModel,TResult>>, IEnumerable<SelectListItem>) |
Returns a single-selection HTML <select> element for the |
| DropDownListFor<TModel,TResult>(IHtmlHelper<TModel>, Expression<Func<TModel,TResult>>, IEnumerable<SelectListItem>, Object) |
Returns a single-selection HTML <select> element for the |
| DropDownListFor<TModel,TResult>(IHtmlHelper<TModel>, Expression<Func<TModel,TResult>>, IEnumerable<SelectListItem>, String) |
Returns a single-selection HTML <select> element for the |
DropDownListFor<TModel,TResult>(IHtmlHelper<TModel>, Expression<Func<TModel,TResult>>, IEnumerable<SelectListItem>)
Returns a single-selection HTML <select> element for the expression. Adds
<option> elements based on selectList. Adds a "selected" attribute to an
<option> if its Value (if non-null) or
Text matches the first non-null value found in:
the ModelState entry with full name, or
the expression evaluated against Model.
See NameFor<TResult>(Expression<Func<TModel,TResult>>) for more information about a "full name".
public:
generic <typename TModel, typename TResult>
[System::Runtime::CompilerServices::Extension]
static Microsoft::AspNetCore::Html::IHtmlContent ^ DropDownListFor(Microsoft::AspNetCore::Mvc::Rendering::IHtmlHelper<TModel> ^ htmlHelper, System::Linq::Expressions::Expression<Func<TModel, TResult> ^> ^ expression, System::Collections::Generic::IEnumerable<Microsoft::AspNetCore::Mvc::Rendering::SelectListItem ^> ^ selectList);public static Microsoft.AspNetCore.Html.IHtmlContent DropDownListFor<TModel,TResult> (this Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper<TModel> htmlHelper, System.Linq.Expressions.Expression<Func<TModel,TResult>> expression, System.Collections.Generic.IEnumerable<Microsoft.AspNetCore.Mvc.Rendering.SelectListItem> selectList);static member DropDownListFor : Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper<'Model> * System.Linq.Expressions.Expression<Func<'Model, 'Result>> * seq<Microsoft.AspNetCore.Mvc.Rendering.SelectListItem> -> Microsoft.AspNetCore.Html.IHtmlContent<Extension()>
Public Function DropDownListFor(Of TModel, TResult) (htmlHelper As IHtmlHelper(Of TModel), expression As Expression(Of Func(Of TModel, TResult)), selectList As IEnumerable(Of SelectListItem)) As IHtmlContentType Parameters
- TModel
The type of the model.
- TResult
The type of the expression result.
Parameters
- htmlHelper
- IHtmlHelper<TModel>
The IHtmlHelper<TModel> instance this method extends.
- expression
- Expression<Func<TModel,TResult>>
An expression to be evaluated against the current model.
- selectList
- IEnumerable<SelectListItem>
A collection of SelectListItem objects used to populate the <select> element with
<optgroup> and <option> elements. If null, uses the ViewData
entry with full name and that entry must be a collection of SelectListItem objects.
Returns
A new IHtmlContent containing the <select> element.
Remarks
Combines HtmlFieldPrefix and the string representation of the expression to set <select> element's "name" attribute. Sanitizes the string representation of the expression to set element's "id" attribute.
Applies to
ASP.NET Core 9.0 and other versions
| Product | Versions |
|---|---|
| ASP.NET Core | 1.0, 1.1, 2.0, 2.1, 2.2, 3.0, 3.1, 5.0, 6.0, 7.0, 8.0, 9.0 |
DropDownListFor<TModel,TResult>(IHtmlHelper<TModel>, Expression<Func<TModel,TResult>>, IEnumerable<SelectListItem>, Object)
Returns a single-selection HTML <select> element for the expression. Adds
<option> elements based on selectList. Adds a "selected" attribute to an
<option> if its Value (if non-null) or
Text matches the first non-null value found in:
the ModelState entry with full name, or
the expression evaluated against Model.
See NameFor<TResult>(Expression<Func<TModel,TResult>>) for more information about a "full name".
public:
generic <typename TModel, typename TResult>
[System::Runtime::CompilerServices::Extension]
static Microsoft::AspNetCore::Html::IHtmlContent ^ DropDownListFor(Microsoft::AspNetCore::Mvc::Rendering::IHtmlHelper<TModel> ^ htmlHelper, System::Linq::Expressions::Expression<Func<TModel, TResult> ^> ^ expression, System::Collections::Generic::IEnumerable<Microsoft::AspNetCore::Mvc::Rendering::SelectListItem ^> ^ selectList, System::Object ^ htmlAttributes);public static Microsoft.AspNetCore.Html.IHtmlContent DropDownListFor<TModel,TResult> (this Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper<TModel> htmlHelper, System.Linq.Expressions.Expression<Func<TModel,TResult>> expression, System.Collections.Generic.IEnumerable<Microsoft.AspNetCore.Mvc.Rendering.SelectListItem> selectList, object htmlAttributes);static member DropDownListFor : Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper<'Model> * System.Linq.Expressions.Expression<Func<'Model, 'Result>> * seq<Microsoft.AspNetCore.Mvc.Rendering.SelectListItem> * obj -> Microsoft.AspNetCore.Html.IHtmlContent<Extension()>
Public Function DropDownListFor(Of TModel, TResult) (htmlHelper As IHtmlHelper(Of TModel), expression As Expression(Of Func(Of TModel, TResult)), selectList As IEnumerable(Of SelectListItem), htmlAttributes As Object) As IHtmlContentType Parameters
- TModel
The type of the model.
- TResult
The type of the expression result.
Parameters
- htmlHelper
- IHtmlHelper<TModel>
The IHtmlHelper<TModel> instance this method extends.
- expression
- Expression<Func<TModel,TResult>>
An expression to be evaluated against the current model.
- selectList
- IEnumerable<SelectListItem>
A collection of SelectListItem objects used to populate the <select> element with
<optgroup> and <option> elements. If null, uses the ViewData
entry with full name and that entry must be a collection of SelectListItem objects.
- htmlAttributes
- Object
An Object that contains the HTML attributes for the <select> element. Alternatively, an IDictionary<TKey,TValue> instance containing the HTML attributes.
Returns
A new IHtmlContent containing the <select> element.
Remarks
Combines HtmlFieldPrefix and the string representation of the expression to set <select> element's "name" attribute. Sanitizes the string representation of the expression to set element's "id" attribute.
Applies to
ASP.NET Core 9.0 and other versions
| Product | Versions |
|---|---|
| ASP.NET Core | 1.0, 1.1, 2.0, 2.1, 2.2, 3.0, 3.1, 5.0, 6.0, 7.0, 8.0, 9.0 |
DropDownListFor<TModel,TResult>(IHtmlHelper<TModel>, Expression<Func<TModel,TResult>>, IEnumerable<SelectListItem>, String)
Returns a single-selection HTML <select> element for the expression. Adds
<option> elements based on optionLabel and selectList. Adds a
"selected" attribute to an <option> if its Value (if non-null) or
Text matches the first non-null value found in:
the ModelState entry with full name, or
the expression evaluated against Model.
See NameFor<TResult>(Expression<Func<TModel,TResult>>) for more information about a "full name".
public:
generic <typename TModel, typename TResult>
[System::Runtime::CompilerServices::Extension]
static Microsoft::AspNetCore::Html::IHtmlContent ^ DropDownListFor(Microsoft::AspNetCore::Mvc::Rendering::IHtmlHelper<TModel> ^ htmlHelper, System::Linq::Expressions::Expression<Func<TModel, TResult> ^> ^ expression, System::Collections::Generic::IEnumerable<Microsoft::AspNetCore::Mvc::Rendering::SelectListItem ^> ^ selectList, System::String ^ optionLabel);public static Microsoft.AspNetCore.Html.IHtmlContent DropDownListFor<TModel,TResult> (this Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper<TModel> htmlHelper, System.Linq.Expressions.Expression<Func<TModel,TResult>> expression, System.Collections.Generic.IEnumerable<Microsoft.AspNetCore.Mvc.Rendering.SelectListItem> selectList, string optionLabel);static member DropDownListFor : Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper<'Model> * System.Linq.Expressions.Expression<Func<'Model, 'Result>> * seq<Microsoft.AspNetCore.Mvc.Rendering.SelectListItem> * string -> Microsoft.AspNetCore.Html.IHtmlContent<Extension()>
Public Function DropDownListFor(Of TModel, TResult) (htmlHelper As IHtmlHelper(Of TModel), expression As Expression(Of Func(Of TModel, TResult)), selectList As IEnumerable(Of SelectListItem), optionLabel As String) As IHtmlContentType Parameters
- TModel
The type of the model.
- TResult
The type of the expression result.
Parameters
- htmlHelper
- IHtmlHelper<TModel>
The IHtmlHelper<TModel> instance this method extends.
- expression
- Expression<Func<TModel,TResult>>
An expression to be evaluated against the current model.
- selectList
- IEnumerable<SelectListItem>
A collection of SelectListItem objects used to populate the <select> element with
<optgroup> and <option> elements. If null, uses the ViewData
entry with full name and that entry must be a collection of SelectListItem objects.
- optionLabel
- String
The text for a default empty item. Does not include such an item if argument is null.
Returns
A new IHtmlContent containing the <select> element.
Remarks
Combines HtmlFieldPrefix and the string representation of the expression to set <select> element's "name" attribute. Sanitizes the string representation of the expression to set element's "id" attribute.
Applies to
ASP.NET Core 9.0 and other versions
| Product | Versions |
|---|---|
| ASP.NET Core | 1.0, 1.1, 2.0, 2.1, 2.2, 3.0, 3.1, 5.0, 6.0, 7.0, 8.0, 9.0 |