HtmlHelperSelectExtensions Class¶

Inheritance Hierarchy¶

• System.Object
• Microsoft.AspNetCore.Mvc.Rendering.HtmlHelperSelectExtensions

Syntax¶

public class HtmlHelperSelectExtensions

class Microsoft.AspNetCore.Mvc.Rendering.HtmlHelperSelectExtensions

Methods¶

DropDownList(Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper, System.String)¶

Returns a single-selection HTML <select> element for the <em>expression</em>.

Arguments:	htmlHelper (Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper) – The Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper instance this method extends. expression (System.String) – Expression name, relative to the current model.
Return type:	Microsoft.AspNetCore.Html.IHtmlContent
Returns:	A new Microsoft.AspNetCore.Html.IHtmlContent containing the <select> element.

public static IHtmlContent DropDownList(this IHtmlHelper htmlHelper, string expression)

DropDownList(Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper, System.String, System.Collections.Generic.IEnumerable<Microsoft.AspNetCore.Mvc.Rendering.SelectListItem>)

Returns a single-selection HTML <select> element for the <em>expression</em>, using the specified list items.

Arguments:	htmlHelper (Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper) – The Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper instance this method extends. expression (System.String) – Expression name, relative to the current model. selectList (System.Collections.Generic.IEnumerable<Microsoft.AspNetCore.Mvc.Rendering.SelectListItem>) – A collection of Microsoft.AspNetCore.Mvc.Rendering.SelectListItem objects used to populate the <select> element with <optgroup> and <option> elements.
Return type:	Microsoft.AspNetCore.Html.IHtmlContent
Returns:	A new Microsoft.AspNetCore.Html.IHtmlContent containing the <select> element.

public static IHtmlContent DropDownList(this IHtmlHelper htmlHelper, string expression, IEnumerable<SelectListItem> selectList)

DropDownList(Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper, System.String, System.Collections.Generic.IEnumerable<Microsoft.AspNetCore.Mvc.Rendering.SelectListItem>, System.Object)

Returns a single-selection HTML <select> element for the <em>expression</em>, using the specified list items and HTML attributes.

Arguments:	htmlHelper (Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper) – The Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper instance this method extends. expression (System.String) – Expression name, relative to the current model. selectList (System.Collections.Generic.IEnumerable<Microsoft.AspNetCore.Mvc.Rendering.SelectListItem>) – A collection of Microsoft.AspNetCore.Mvc.Rendering.SelectListItem objects used to populate the <select> element with <optgroup> and <option> elements. htmlAttributes (System.Object) – An System.Object that contains the HTML attributes for the <select> element. Alternatively, an System.Collections.Generic.IDictionary`2 instance containing the HTML attributes.
Return type:	Microsoft.AspNetCore.Html.IHtmlContent
Returns:	A new Microsoft.AspNetCore.Html.IHtmlContent containing the <select> element.

public static IHtmlContent DropDownList(this IHtmlHelper htmlHelper, string expression, IEnumerable<SelectListItem> selectList, object htmlAttributes)

DropDownList(Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper, System.String, System.Collections.Generic.IEnumerable<Microsoft.AspNetCore.Mvc.Rendering.SelectListItem>, System.String)

Returns a single-selection HTML <select> element for the <em>expression</em>, using the specified list items and option label.

Arguments:	htmlHelper (Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper) – The Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper instance this method extends. expression (System.String) – Expression name, relative to the current model. selectList (System.Collections.Generic.IEnumerable<Microsoft.AspNetCore.Mvc.Rendering.SelectListItem>) – A collection of Microsoft.AspNetCore.Mvc.Rendering.SelectListItem objects used to populate the <select> element with <optgroup> and <option> elements. optionLabel (System.String) – The text for a default empty item. Does not include such an item if argument is <code>null</code>.
Return type:	Microsoft.AspNetCore.Html.IHtmlContent
Returns:	A new Microsoft.AspNetCore.Html.IHtmlContent containing the <select> element.

public static IHtmlContent DropDownList(this IHtmlHelper htmlHelper, string expression, IEnumerable<SelectListItem> selectList, string optionLabel)

DropDownList(Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper, System.String, System.String)

Returns a single-selection HTML <select> element for the <em>expression</em>, using the option label.

Arguments:	htmlHelper (Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper) – The Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper instance this method extends. expression (System.String) – Expression name, relative to the current model. optionLabel (System.String) – The text for a default empty item. Does not include such an item if argument is <code>null</code>.
Return type:	Microsoft.AspNetCore.Html.IHtmlContent
Returns:	A new Microsoft.AspNetCore.Html.IHtmlContent containing the <select> element.

public static IHtmlContent DropDownList(this IHtmlHelper htmlHelper, string expression, string optionLabel)

DropDownListFor<TModel, TResult>(Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper<TModel>, System.Linq.Expressions.Expression<System.Func<TModel, TResult>>, System.Collections.Generic.IEnumerable<Microsoft.AspNetCore.Mvc.Rendering.SelectListItem>)¶

Returns a single-selection HTML <select> element for the <em>expression</em>, using the specified list items.

Arguments:	htmlHelper (Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper<TModel>) – The Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper`1 instance this method extends. expression (System.Linq.Expressions.Expression<System.Func<TModel, TResult>>) – An expression to be evaluated against the current model. selectList (System.Collections.Generic.IEnumerable<Microsoft.AspNetCore.Mvc.Rendering.SelectListItem>) – A collection of Microsoft.AspNetCore.Mvc.Rendering.SelectListItem objects used to populate the <select> element with <optgroup> and <option> elements.
Return type:	Microsoft.AspNetCore.Html.IHtmlContent
Returns:	A new Microsoft.AspNetCore.Html.IHtmlContent containing the <select> element.

public static IHtmlContent DropDownListFor<TModel, TResult>(this IHtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TResult>> expression, IEnumerable<SelectListItem> selectList)

DropDownListFor<TModel, TResult>(Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper<TModel>, System.Linq.Expressions.Expression<System.Func<TModel, TResult>>, System.Collections.Generic.IEnumerable<Microsoft.AspNetCore.Mvc.Rendering.SelectListItem>, System.Object)

Returns a single-selection HTML <select> element for the <em>expression</em>, using the specified list items and HTML attributes.

Arguments:	htmlHelper (Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper<TModel>) – The Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper`1 instance this method extends. expression (System.Linq.Expressions.Expression<System.Func<TModel, TResult>>) – An expression to be evaluated against the current model. selectList (System.Collections.Generic.IEnumerable<Microsoft.AspNetCore.Mvc.Rendering.SelectListItem>) – A collection of Microsoft.AspNetCore.Mvc.Rendering.SelectListItem objects used to populate the <select> element with <optgroup> and <option> elements. htmlAttributes (System.Object) – An System.Object that contains the HTML attributes for the <select> element. Alternatively, an System.Collections.Generic.IDictionary`2 instance containing the HTML attributes.
Return type:	Microsoft.AspNetCore.Html.IHtmlContent
Returns:	A new Microsoft.AspNetCore.Html.IHtmlContent containing the <select> element.

public static IHtmlContent DropDownListFor<TModel, TResult>(this IHtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TResult>> expression, IEnumerable<SelectListItem> selectList, object htmlAttributes)

DropDownListFor<TModel, TResult>(Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper<TModel>, System.Linq.Expressions.Expression<System.Func<TModel, TResult>>, System.Collections.Generic.IEnumerable<Microsoft.AspNetCore.Mvc.Rendering.SelectListItem>, System.String)

Returns a single-selection HTML <select> element for the <em>expression</em>, using the specified list items and option label.

Arguments:	htmlHelper (Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper<TModel>) – The Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper`1 instance this method extends. expression (System.Linq.Expressions.Expression<System.Func<TModel, TResult>>) – An expression to be evaluated against the current model. selectList (System.Collections.Generic.IEnumerable<Microsoft.AspNetCore.Mvc.Rendering.SelectListItem>) – A collection of Microsoft.AspNetCore.Mvc.Rendering.SelectListItem objects used to populate the <select> element with <optgroup> and <option> elements. optionLabel (System.String) – The text for a default empty item. Does not include such an item if argument is <code>null</code>.
Return type:	Microsoft.AspNetCore.Html.IHtmlContent
Returns:	A new Microsoft.AspNetCore.Html.IHtmlContent containing the <select> element.

public static IHtmlContent DropDownListFor<TModel, TResult>(this IHtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TResult>> expression, IEnumerable<SelectListItem> selectList, string optionLabel)

ListBox(Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper, System.String)¶

Returns a multi-selection <select> element for the <em>expression</em>.

Arguments:	htmlHelper (Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper) – The Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper instance this method extends. expression (System.String) – Expression name, relative to the current model.
Return type:	Microsoft.AspNetCore.Html.IHtmlContent
Returns:	A new Microsoft.AspNetCore.Html.IHtmlContent containing the <select> element.

public static IHtmlContent ListBox(this IHtmlHelper htmlHelper, string expression)

ListBox(Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper, System.String, System.Collections.Generic.IEnumerable<Microsoft.AspNetCore.Mvc.Rendering.SelectListItem>)

Returns a multi-selection <select> element for the <em>expression</em>, using the specified list items.

Arguments:	htmlHelper (Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper) – The Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper instance this method extends. expression (System.String) – Expression name, relative to the current model. selectList (System.Collections.Generic.IEnumerable<Microsoft.AspNetCore.Mvc.Rendering.SelectListItem>) – A collection of Microsoft.AspNetCore.Mvc.Rendering.SelectListItem objects used to populate the <select> element with <optgroup> and <option> elements.
Return type:	Microsoft.AspNetCore.Html.IHtmlContent
Returns:	A new Microsoft.AspNetCore.Html.IHtmlContent containing the <select> element.

public static IHtmlContent ListBox(this IHtmlHelper htmlHelper, string expression, IEnumerable<SelectListItem> selectList)

ListBoxFor<TModel, TResult>(Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper<TModel>, System.Linq.Expressions.Expression<System.Func<TModel, TResult>>, System.Collections.Generic.IEnumerable<Microsoft.AspNetCore.Mvc.Rendering.SelectListItem>)¶

Returns a multi-selection <select> element for the <em>expression</em>, using the specified list items.

Arguments:	htmlHelper (Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper<TModel>) – The Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper`1 instance this method extends. expression (System.Linq.Expressions.Expression<System.Func<TModel, TResult>>) – An expression to be evaluated against the current model. selectList (System.Collections.Generic.IEnumerable<Microsoft.AspNetCore.Mvc.Rendering.SelectListItem>) – A collection of Microsoft.AspNetCore.Mvc.Rendering.SelectListItem objects used to populate the <select> element with <optgroup> and <option> elements.
Return type:	Microsoft.AspNetCore.Html.IHtmlContent
Returns:	A new Microsoft.AspNetCore.Html.IHtmlContent containing the <select> element.

public static IHtmlContent ListBoxFor<TModel, TResult>(this IHtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TResult>> expression, IEnumerable<SelectListItem> selectList)