ASP.NET Mobile SelectionList Control

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# ASP.NET Mobile SelectionList Control

Complete ASP.NET Mobile Reference

## Definition and Usage

The SelectionList control is used to create a list on a mobile device.

Differences between a SelectionList control and a List control:

- A SelectionList control supports multiple item selections and the List control only supports single item selections
- A SelectionList control supports drop-down lists, combo boxes, and radio buttons and the List control only supports common lists
- An item selected from a SelectionList control does not generate a server event
- A SelectionList control does not offer pagination

## Properties

Property | Value | Description
--- | --- | ---
Alignment | left center right | Optional. How to align the list
BackColor | rgb(x,x,x) #xxxxxx colorname | Optional. A background color for the list
DataMember | dataMember | Optional. Specifies the data member to extract in data binding to a data source
DataTextField | dataTextField | Optional.
DataValueField | dataValueField | Optional.
ForeColor | rgb(x,x,x) #xxxxxx colorname | Optional. A foreground color for the list
Font-Bold | false true | Optional. Specifies whether or not the text in the list should be bold
Font-Italic | false true | Optional. Specifies whether or not the text in the list should be italic
Font-Name | fontname | Optional. Specifies the font name of the text in the list
Font-Size | normal small large | Optional. Specifies the font size of the text in the list
id | unique_name | Optional. A unique id for the control
OnItemDataBind | function_name | Optional. The name of the function to be executed when an item is data bound to a MobileListItem object
OnSelectedIndexChanged | function_name | Optional. The name of the function to be executed when the index of the selected item has changed
Rows | rows | Optional. Specifies the number of rows to display. Default is "4"
runat | "server" | Required. Specifies that the control is a server control
SelectType | DropDown ListBox Radio MultiSelectListBox CheckBox | Optional. Specifies the type of list to display. "DropDown" is default.
StyleReference | name_of_style_element | Optional. Specifies a reference to a style to be applied to the control
Title | text | Optional. Specifies a title to display. Only for WML devices
Wrapping | wrap nowrap | Optional. Specifies whether or not the text in the list should wrap

### Example 1

The following example is an .aspx page with two forms. The first form has a list of cars. The second form is activated when a car is selected in the first form, and it displays the price of the selected car:

    <%@ Page
    Inherits="System.Web.UI.MobileControls.MobilePage"%>
    <%@ Register TagPrefix="Mobile"
    Namespace="System.Web.UI.MobileControls"
    Assembly="System.Web.Mobile" %>

    <script runat="server">
    Sub Car_Click(sender as Object, e as EventArgs)
    ActiveForm=f2
    t1.text=cars.Selection.Value
    End Sub
    </script>

    <Mobile:Form id="f1" runat="server">
      <Mobile:SelectionList runat="server" id="cars" >
        <Item Text="Volvo" Value="$30,000" />
        <Item Text="BMW" Value="$32,000" />
        <Item Text="Audi" Value="$34,000" />
      </Mobile:SelectionList>
      <Mobile:Command runat="server"
      OnClick="Car_Click" Text="Submit" />
    </Mobile:Form>

    <Mobile:Form id="f2" runat="server">
      <Mobile:Label id="t1" runat="server" />
    </Mobile:Form>

When this page is displayed on a mobile device, the navigation and display functions of the page will be compiled differently for different devices with different display characteristics.

Fore some devices, like a handheld PC, it might display a dropdown list to choose from. For a cell phone it might display a list of options to select from.

Complete ASP.NET Mobile Reference

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