HtmlSelect.Name Property
.NET Framework (current version)
Gets or sets the unique identifier name associated with the HtmlSelect control.
Assembly: System.Web (in System.Web.dll)
Property Value
Type: System.StringThe unique identifier name associated with the HtmlSelect control.
Use the Name property to determine the unique identifier name for an HtmlSelect control. In this implementation, the get accessor returns the value of the Control.UniqueID property. However, the set accessor does not assign a value to this property.
Note |
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The set accessor does not assign a value to this property because the Name property must have the same value as the Control.UniqueID property for the HtmlSelect control to work properly. |
The following code example demonstrates how to use the Name property of the HtmlSelect control to select a specific item in the Items list.
<%@ Page Language="VB" AutoEventWireup="True" %> <%@ Import Namespace="System.Data" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <script runat="server" > Sub Page_Load(sender as Object, e As EventArgs) ' Bind a data source to the Repeater control. Repeater1.DataSource = CreateRepeaterSource() Repeater1.DataBind() End Sub Sub Item_Bound(sender As Object, e As RepeaterItemEventArgs) ' Each item in the Repeater control contains an HtmlSelect ' control. This method binds a data source to the HtmlSelect ' control as each item in the Repeater control is being ' bound to data. ' The ItemDataBound event is raised when data is bound to an ' item in the Repeater control. Items can include the Header, ' Footer, and so on. Use the following logic only if the item ' being bound is an Item or AlternatingItem. If (e.Item.ItemType = ListItemType.Item) Or _ (e.Item.ItemType = ListItemType.AlternatingItem) Then ' Bind a data source to the HtmlSelect control. Dim selectControl As HtmlSelect = _ CType(e.Item.FindControl("Select1"), HtmlSelect) selectControl.DataSource = CreateHtmlSelectSource() selectControl.DataBind() ' The runtime automatically generates a unique identifier ' for each control embedded in a list control, such as the ' Repeater. The Name property of the HtmlSelect control ' contains this unique identifier and is commonly used ' to identify a specific control. ' Select the last item in the HtmlSelect control if the Name ' property contains the value "Repeater1:_ctl3:Select1". If selectControl.Name = "Repeater1:_ctl3:Select1" Then selectControl.SelectedIndex = selectControl.Items.Count - 1 End If End If End Sub Function CreateHtmlSelectSource() As DataView ' Create a DataTable that contains sample data for the ' HtmlSelect controls. Dim dt As DataTable = New DataTable() Dim dr As DataRow dt.Columns.Add(New DataColumn("Text", GetType(String))) dt.Columns.Add(New DataColumn("Value", GetType(String))) ' Populate the DataTable with sample values. Dim i As Integer For i = 0 To 4 dr = dt.NewRow() dr(0) = "Item " & i.ToString() dr(1) = i.ToString() dt.Rows.Add(dr) Next i ' Create a DataView from the DataTable. Dim dv As DataView = New DataView(dt) Return dv End Function Function CreateRepeaterSource() As DataView ' Create a DataTable that contains sample data for the ' Repeater control. Dim dt As DataTable = New DataTable() Dim dr As DataRow dt.Columns.Add(new DataColumn("Category", GetType(String))) ' Populate the DataTable with sample values. Dim i As Integer For i = 0 To 4 dr = dt.NewRow() dr(0) = "Category " & i.ToString() dt.Rows.Add(dr) Next i ' Create a DataView from the DataTable. Dim dv As DataView = new DataView(dt) return dv End Function </script> <head runat="server"> <title> HtmlSelect Name Example </title> </head> <body> <form id="form1" runat="server"> <h3> HtmlSelect Name Example </h3> Notice that Category 3 has a different item selected by default. <br /> <asp:Repeater id="Repeater1" OnItemDataBound="Item_Bound" runat="server"> <ItemTemplate> <h4><%# DataBinder.Eval(Container.DataItem, "Category") %></h4> Select Item: <br /> <select id="Select1" datatextfield="Text" datavaluefield="Value" runat="server"/> <br /><br /> <hr /> </ItemTemplate> </asp:Repeater> </form> </body> </html>
.NET Framework
Available since 1.1
Available since 1.1
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