InputExtensions.RadioButton Method (HtmlHelper, String, Object)
Returns a radio button input element that is used to present mutually exclusive options.
Namespace: System.Web.Mvc.Html
Assembly: System.Web.Mvc (in System.Web.Mvc.dll)
'Declaration <ExtensionAttribute> _ Public Shared Function RadioButton ( _ htmlHelper As HtmlHelper, _ name As String, _ value As Object _ ) As MvcHtmlString 'Usage Dim htmlHelper As HtmlHelper Dim name As String Dim value As Object Dim returnValue As MvcHtmlString returnValue = htmlHelper.RadioButton(name, _ value)
Parameters
- htmlHelper
- Type: System.Web.Mvc.HtmlHelper
The HTML helper instance that this method extends.
- name
- Type: System.String
The name of the form field and the ViewDataDictionary key that is used to look up the value.
- value
- Type: System.Object
If this radio button is selected, the value of the radio button that is submitted when the form is posted. If the value of the selected radio button in the ViewDataDictionary or the ModelStateDictionary object matches this value, this radio button is selected.
Return Value
Type: System.Web.Mvc.MvcHtmlStringAn input element whose type attribute is set to "radio".
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type HtmlHelper. When you use instance method syntax to call this method, omit the first parameter. For more information, see https://msdn.microsoft.com/en-us/library/bb384936(v=vs.108) or https://msdn.microsoft.com/en-us/library/bb383977(v=vs.108).| Exception | Condition |
|---|---|
| ArgumentException | The name parameter is Nothing or empty. |
| ArgumentNullException | The value parameter is Nothing. |
The difference between calling the RadioButton method and using an input element is that the RadioButton method is designed to make it easy to bind to view data or model data.