📄 defaultvb.aspx

📁 Telerik是很大的第三方软件制造商
💻 ASPX
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<%@ Register TagPrefix="radcb" Namespace="Telerik.WebControls" Assembly="RadComboBox" %>
<%@ Register TagPrefix="telerik" TagName="Footer" Src="~/Common/Footer.ascx" %>
<%@ Register TagPrefix="telerik" TagName="HeadTag" Src="~/Common/HeadTag.ascx" %>
<%@ Register TagPrefix="telerik" TagName="Header" Src="~/Common/Header.ascx" %>
<%@ Register TagPrefix="telerik" Namespace="Telerik.QuickStart" Assembly="Telerik.QuickStart" %>
<%@ Page AutoEventWireup="false" CodeBehind="DefaultVB.aspx.vb" Inherits="Telerik.ComboboxExamplesVB.MultipleComboBoxes.DefaultVB" Language="vb" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html>
  <head>
		<telerik:HeadTag runat="server" ID="Headtag1"></telerik:HeadTag>
		<!-- custom head section -->
		<!-- end of custom head section -->
  </head>
	<body class="BODY">
		<form runat="server" id="mainForm" method="post" style="WIDTH:100%">
			<telerik:Header runat="server" ID="Header1" NavigationLanguage="VB"></telerik:Header>
			<table style="HEIGHT: 300px">
				<tr>
					<td valign="top" class="text" style="height:250px">
						Select a continent:<br/>
						<radcb:radcombobox 
							id="RadComboBox1" 
							Runat="server"
							 Height="140px" 
							 Width="150px" 
							 Skin="WindowsXP" 
							 ShowToggleImage="True"
							OnClientSelectedIndexChanging="LoadCountries" />
					</td>
					<td valign="top" class="text" style="height:250px">
						Select a country:<br/>
						<radcb:radcombobox 
							id="RadComboBox2" 
							Runat="server" 
							Height="140px" 
							Width="150px" 
							Skin="WindowsXP" 
							ShowToggleImage="True"
							OnClientSelectedIndexChanging="LoadCities" 
							OnClientItemsRequested="ItemsLoaded"
						/>
					</td>
					<td valign="top" class="text" style="height:250px">
						Select a city:<br/>
						<radcb:radcombobox 
							id="RadComboBox3" 
							Runat="server" 
							Height="140px" 
							Skin="WindowsXP" 
							Width="150px"
							ShowToggleImage="True"
							OnClientItemsRequested="ItemsLoaded"
						/>
					</td>
				</tr>
			</table>
			<script type="text/javascript">

				var countriesCombo = <%= RadComboBox2.ClientID %>;	
				var citiesCombo = <%= RadComboBox3.ClientID %>;	

				function LoadCountries(item)
				{	
					countriesCombo.SetText("Loading...");
					citiesCombo.ClearSelection();
					
					if (item.Index > 0)
					{		
						countriesCombo.RequestItems(item.Value, false);								
					}
				}

				function LoadCities(item)
				{	
					citiesCombo.SetText("Loading...");
					citiesCombo.RequestItems(item.Value, false);					
				}
				
				function ItemsLoaded(combo)
				{
					if (combo.Items.length > 0)
					{
						combo.SetText(combo.Items[0].Text);
					}
					combo.ShowDropDown();
				}

			</script>
			<!-- content end -->
			<telerik:Footer runat="server" ID="Footer1"></telerik:Footer>
		</form>
	</body>
</html>
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