Return Value: A Boolean, returns true if multiple selection in the drop-down list is enabled, otherwise it returns falseMore ExamplesExample Find out if more than one option in a drop-down list can be selected: var x = document.getElementById("mySelect").multiple; Try it Yourself »...
For windows: Hold down the control (ctrl) button to select multiple options For Mac: Hold down the command button to select multiple optionsBecause of the different ways of doing this, and because you have to inform the user that multiple selection is available, it is more user-friendly to...
Dropdown (select element) With Multi-line Options? dropdown list default value set to null dropdown list error - Object reference not set to an instance of an object. DropDown List Selection to Populate TextBox dropdown list with checkbox c# .net Dropdown list with multiple columns Dropdown...
Auto populate text field based on selection in a dropdown list Auto Post Back Page On CheckBox Onclick Auto-Complete TextBox Automapper Error - Missing type map configuration or unsupported mapping Avoid insert duplicate data into database by MVC5 C# Background job run in asp.net mvc Bad Requ...
control to program against the HTML<select>element. By default, this control renders as a drop-down list box. However, if you allow multiple selections (by specifying theMultipleattribute) or specify a value for theSizeproperty that is greater than 1, the control is displayed as a list box...
(by setting theSizeproperty to a value greater than1), the control is displayed as a list box. If a drop-down list box is displayed, an item is always selected. If a list box is displayed, you can programmatically clear the selection from all items by setting theSelectedIndexproperty to...
如果您将以下代码中的"SelectList“替换为"MultiSelectList”,它将生成相同的HTML:var leftSelectList = new SelectList(Model.LeftSideSortedDictionary<string, object> {{"class", "ui-widget"}}; MvcHtmlString disabledStyle = MvcHtmlString.Create(Html.Encodemultiple&quo ...
Applicable on bothSelectList&MultipleSelectListComponents NameTypeDescription boxStylesObjectAdditional styles for select box parent wrapper inputStylesObjectAdditional styles for text of selection box dropdownStylesObjectAdditional styles for dropdown scrollview ...
<td> <div class="caption">options, selectedOptions, optionsText, optionsValue</div> <div>select (multiple selection dropdowns)</div> </td> <td><select data-bind="options: colors,selectedOptions: selectedColorsForDropdown, optionsText: 'name', optionsValue: 'key'...
If you allow multiple selections (by setting the Multiple property to true) or specify a height greater than one row (by setting the Size property to a value greater than 1), the control is displayed as a list box.To determine the selected item in a single-selection HtmlSelect control, ...