Using client side code

[cayates]

Hello, I'm trying to use client side code, however, whenever I add a client side event I get this javascript error:

Telerik.Web.UI.RadListBox is undefined

I've tried using RegisterWithScriptManager, that didn't help.  My script manager is in a master page file, if that makes a difference.

Please help, thanks.

[Veselin Vasilev]

Hello cayates,

Please post here some relevant code so we can try to find where is the problem.

Best wishes,
Veselin Vasilev
the Telerik team

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[cayates]

One other thing is that it's inside the form template of a RadGrid, which may make a difference.

<EditFormSettings EditFormType="Template">
                                <FormTemplate>
                                    <table class="formRow">
                                        <tr style="height: 36px;">
                                            <td class="inputFieldLeft">
                                                <div class="inputFieldLabel">Type</div>
                                                <telerik:RadListBox ID="ParticipantType" runat="server" Width="160" Height="150"
                                                    CheckBoxes="true" DataSourceID="ParticipantTypes" DataTextField="Name" DataValueField="Value"
                                                    />
                                            </td>

[Veselin Vasilev]

Hello cayates,

I cannot see any client-side events nor javascript code.

The more information you share with us - the faster resolution for you.

Kind regards,
Veselin Vasilev
the Telerik team

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Check out the tips for optimizing your support resource searches.

[Shinu]

Hi,

Inorder to access the RadListBox in a client event, you can try using the following code:

js:

var listbox = $telerik.findElement($get("RadGrid1"), "ParticipantType");

-Shinu.

[John Banian]

ASP.NET->RadGrid-><FormTemplate>.->RadListBox  with CheckBoxes="true"

I am using RadListBox  with CheckBoxes="true" inside RadGrid <FormTemplate>.

I am using ObjectDataSource to bind the data to RadListBox.
Queries:
1. How to retrive checked values from the RadListBox  which is inside
<FormTemplate> from Codebehind using c#..
2. How to set the checkboxes checked using the saved Table values  from Codebehind using c#.
3. I did not bind RadListBox to RadGrid Columns.  I am not using DataField property to bind to RadListBox.

Do you have any sample codes?

<EditFormSettings EditFormType="Template"> 
                                <FormTemplate> 
                                    <table class="formRow"> 
                                        <tr style="height: 36px;"> 
                                            <td class="inputFieldLeft"> 
                                                <div class="inputFieldLabel">Type</div> 
                                                <telerik:RadListBox ID="ParticipantType" runat="server" Width="160" Height="150" 
                                                    CheckBoxes="true" DataSourceID="ParticipantTypes" DataTextField="Name" DataValueField="Value" 
                                                    /> 
                                            </td> 

[Genady Sergeev]

Hi John Banian,

As an attachment you can find sample project that demonstrates:

1) how to obtain the RadListBox's checked items
2) how to check RadListBox items using C#.

Kind regards,
Genady Sergeev
the Telerik team

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