Hi,
I added a RadCombobox to a page with Datasource pointed to a LINQDataSource. Then I add a Javascript to set its value on load:
It works fine, but then I add the following code to add a blank line to the Combobox:
Then the set_value script doesn't works anymore.
Any advice? Thanks.
Andy
I added a RadCombobox to a page with Datasource pointed to a LINQDataSource. Then I add a Javascript to set its value on load:
<script type="text/javascript"> var combox = $find("<%=dfDocuments.clientID %>"); combox.set_value('3'); </script>It works fine, but then I add the following code to add a blank line to the Combobox:
Protected Sub dfDocuments_DataBound(ByVal sender As Object, ByVal e As System.EventArgs) Handles dfDocuments.DataBound Dim li As New RadComboBoxItem li.Value = "0" li.Text = "--Select--" li.Selected = False dfDocuments.Items.Insert(0, li) End SubThen the set_value script doesn't works anymore.
Any advice? Thanks.
Andy
3 Answers, 1 is accepted
0
Hi Andy Ho,
I tried to create a sample page and reproduce the issue using the code snippet provided here - but without success.
Could you please paste here a working code that fully illustrates your implementation?
Thank you in advance.
Best wishes,
Kalina
the Telerik team
I tried to create a sample page and reproduce the issue using the code snippet provided here - but without success.
Could you please paste here a working code that fully illustrates your implementation?
Thank you in advance.
Best wishes,
Kalina
the Telerik team
Registration for Q1 2011 What’s New Webinar Week is now open. Mark your calendar for the week starting March 21st and book your seat for a walk through all the exciting stuff we ship with the new release!
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Andy Ho
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answered on 07 Mar 2011, 02:20 AM
Kalina,
My VB Code:
<body><form id="form1" runat="server">
<telerik:RadScriptManager ID="RadScriptManager1" runat="server"> </telerik:RadScriptManager>
<telerik:RadComboBox ID="dfDocuments" runat="server" DataSourceID="ldsDocuments" DataTextField="Subject" DataValueField="FileID" Width="250px"> </telerik:RadComboBox> <asp:LinqDataSource ID="ldsDocuments" runat="server" ContextTypeName="dcLAPDataContext" OrderBy="PageID" Select="new (FileID, Subject)" TableName="LAP_Files"></asp:LinqDataSource>
</form><script type="text/javascript"> // Tried to set the defalut value to 3 with Javascript
var combox = $find("<%=dfDocuments.clientID%>"); combox.set_value('3'); </script>
</body></html>My VB Code:
Partial Class Testing_ComboText
Inherits System.Web.UI.Page
Protected Sub dfDocuments_DataBound(ByVal sender As Object, ByVal e As System.EventArgs) Handles dfDocuments.DataBound
Dim li As New RadComboBoxItem
li.Value = "0"
li.Text ="--Select--"
li.Selected = False
'If I remark the line below, the Javascript works ok, otherwise failed
dfDocuments.Items.Insert(0,li)
End Sub
End Class0
Hello Andy Ho,
As I understand, you are trying to preselect an item in the RadComboBox.
Let me suggest you handle the OnClientLoad event or the RadComboBox in this way.
Kind regards,
Kalina
the Telerik team
As I understand, you are trying to preselect an item in the RadComboBox.
Let me suggest you handle the OnClientLoad event or the RadComboBox in this way.
<telerik:RadComboBox runat="server" ID="dfDocuments"DataSourceID="ldsDocuments" OnClientLoad="OnClientLoad" ...<script type="text/javascript">function OnClientLoad(sender){ var item = sender.findItemByValue('3'); item.select();}</script>Kind regards,
Kalina
the Telerik team
Registration for Q1 2011 What’s New Webinar Week is now open. Mark your calendar for the week starting March 21st and book your seat for a walk through all the exciting stuff we ship with the new release!