I am using the RadXmlHttpPanel to load a dropdown based on teh value of other dropdown. Below is my case.
I have a state comobo. when user select a value then the county dropdown should list the counties for that state. Both State and County is coming from the DB.
I have the county dropdown in the RadXmlHttpPanel.
My problem is. When the choose the state dropdown for the first time I am seeing the counties populated correctly and I am able to choose from the county list.
But then when I try to change the state then I am not able to do with the mouse. The list of state show in the dropdown but not able to choose from the list. But I am able to use the key board and select and the county dropdown populates accordingly.
Here is the code I am using.
<telerik:RadComboBox ID="cmbState" runat="server" Width="50px" OnClientSelectedIndexChanged="ComboChanged"> </telerik:RadComboBox> <telerik:RadXmlHttpPanel ID="CountyXmlHttpPanel" runat="server" OnServiceRequest="CountyXmlHttpPanel_ServiceRequest" EnableClientScriptEvaluation ="true"> <telerik:RadComboBox ID="cmbCounty" runat="server" Width="100px" DropDownWidth="250px" > </telerik:RadComboBox> </telerik:RadXmlHttpPanel> function ComboChanged(sender, args) { var foundPanel = $find("<%=CountyXmlHttpPanel.ClientID %>"); var stateCombo = $find("<%= cmbState.ClientID %>"); var stateVal = stateCombo.get_value(); foundPanel.set_value(stateVal); } protected void CountyXmlHttpPanel_ServiceRequest(object sender, Telerik.Web.UI.RadXmlHttpPanelEventArgs e) { //Bind county here }
Thanks
1 Answer, 1 is accepted
0
Hello Sam,
I tested the code you provided locally, and I didn't experience any problems. Here is the full source code:
.aspx
.cs
Please note that you should take into consideration the known issues of the RadXmlHttpPanel control, described in our online help.
Kind regards,
Pero
the Telerik team
I tested the code you provided locally, and I didn't experience any problems. Here is the full source code:
.aspx
<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><head id="Head1" runat="server"> <title></title> <telerik:RadScriptBlock ID="RadScriptBlock1" runat="server"> <script type="text/javascript"> function SetValue() { var panel = $find("<%=XmlPanel1.ClientID %>"); panel.set_value("Bind ComboBox"); } </script> </telerik:RadScriptBlock></head><body> <form id="form1" runat="server"> <asp:ScriptManager ID="ScriptManager1" runat="server"> </asp:ScriptManager> <telerik:RadComboBox ID="RadComboBox1" runat="server" Width="100px" DropDownWidth="250px"> <Items> <telerik:RadComboBoxItem Text="State1" /> <telerik:RadComboBoxItem Text="State2" /> <telerik:RadComboBoxItem Text="State3" /> <telerik:RadComboBoxItem Text="State4" /> </Items> </telerik:RadComboBox> <div> <input value="Set Value" onclick="SetValue(); return false;" type="button" /> <telerik:RadXmlHttpPanel ID="XmlPanel1" runat="server" OnServiceRequest="XmlPanel1_ServiceRequest" EnableClientScriptEvaluation="true"> <telerik:RadComboBox ID="cmbCounty" runat="server" Width="100px" DropDownWidth="250px"> </telerik:RadComboBox> </telerik:RadXmlHttpPanel> </div> </form></body></html>.cs
using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.Script.Serialization;public partial class Default_Callback : System.Web.UI.Page{ protected void XmlPanel1_ServiceRequest(object sender, Telerik.Web.UI.RadXmlHttpPanelEventArgs e) { cmbCounty.DataSource = new string[] { "ComboItem 1", "ComboItem 2", "ComboItem 3", "ComboItem 4" }; cmbCounty.DataBind(); }}Please note that you should take into consideration the known issues of the RadXmlHttpPanel control, described in our online help.
Kind regards,
Pero
the Telerik team
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