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ComboBox with CheckBox in Q2 2011

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ComboBox

This is a migrated thread and some comments may be shown as answers.

3 Answers, 1 is accepted

answered on 22 Jul 2011, 05:40 PM

Hello Marco,

I created a test page I tried to reproduce the issue that you describe, but without success.

Please take a look at the code that I've used (I suppose that there is something different in your page that causes the issue):

<body>

<form id="form1" runat="server">

<div>

<asp:ScriptManager ID="ScriptManager1" runat="server" />

<telerik:RadComboBox ID="RadComboBox1" runat="server"

CheckBoxes="true" >

</telerik:RadComboBox>

</div>

</form>

</body>

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

this.RadComboBox1.Items.Add(new RadComboBoxItem("Session 1", "1"));

this.RadComboBox1.Items.Add(new RadComboBoxItem("Session 2", "2"));

}

Could you please provide us more details about your implementation and paste here a simplified working code that represents it?
How do you populate the RadComboBox with items?

Best wishes,
Kalina
the Telerik team

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answered on 22 Jul 2011, 07:23 PM

Dear Kalina,

I updated your example to the following:

asxp:

<form>

<telerik:RadScriptManager ID="RadScriptManager1" runat="server">

</telerik:RadScriptManager>

<telerik:RadComboBox ID="RadComboBox1" runat="server" CheckBoxes="true">

</telerik:RadComboBox>

</form>

Server-Side code:

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

Me.RadComboBox1.Items.Add(New RadComboBoxItem("Session 1", "1"))

Me.RadComboBox1.Items.Add(New RadComboBoxItem("Session 2", "2"))

End Sub

Protected Sub RadComboBox1_ItemCreated(sender As Object, e As Telerik.Web.UI.RadComboBoxItemEventArgs) Handles RadComboBox1.ItemCreated

If e.Item.Index = 0 Then

e.Item.Checked = True

e.Item.Enabled = False

End If

End Sub

In the ItemCreated event I make the first in the list Checked = true and Enabled = false
The text is disabled but the checkbox is not, I can still change the checkbox
I assume that the checkbox also has to be disabled or do I miss something else to disable the checkbox of that item?

hopes this helps

Best regards Marco

Accepted

answered on 27 Jul 2011, 04:42 PM

Hello Marco,

Thank you for providing me a clear test case of the issue.
I successfully reproduced it and it looks like a bug - so we will research it and log it for fixing.

Let me suggest you overcome the issue by disable the RadComboBox item at client-side in this manner:

<head runat="server">

<title></title>

<script type="text/javascript">

function OnClientLoad(sender) {

// disable the first item :

sender.get_items().getItem(0).disable();

}

</script>

</head>

<body>

<form id="form1" runat="server">

<asp:ScriptManager ID="ScriptManager1" runat="server" />

<telerik:RadComboBox ID="RadComboBox1" runat="server"

OnItemCreated="RadComboBox1_ItemCreated"

OnClientLoad="OnClientLoad"

CheckBoxes="true" >

</telerik:RadComboBox>

</form>

</body>

protected void Page_Load(object sender, EventArgs e)

{

this.RadComboBox1.Items.Add(new RadComboBoxItem("Session 1", "1"));

this.RadComboBox1.Items.Add(new RadComboBoxItem("Session 2", "2"));

}

protected void RadComboBox1_ItemCreated(object sender, Telerik.Web.UI.RadComboBoxItemEventArgs e)

{

if (e.Item.Index == 0)

{

e.Item.Checked = true;

// e.Item.Enabled = false;

}

You will not need this workaround once we fix the issue.
Thank you for taking your time to report this - please find your Telerik points updated.

Kind regards,
Kalina
the Telerik team

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