Thank you for your feedback. We highly appreciate it.
Regarding the RadAjaxPanel issue we included it in our backlog items list for further consideration and investigation. As soon as we have any progress on the issue, we will contact you again.
With the UpdatePanel scenario you need to register the CSS styles that the RadColorPicker uses in the head of your page, for example:
| <title>Untitled Page</title>
| <link href="../Skins/Default/ColorPicker.Default.css" rel="stylesheet" type="text/css" />
| <link href="../Skins/ColorPicker.css" rel="stylesheet" type="text/css" />
As far as it is concerned to the problem with the wrong association RadColorPicker - textbox, you can set the ClientID of the corresponding textbox as an attribute of the color picker and get it later from the attributes collection of the color picker when you need it. I have attached a sample UserControl which demonstrates the above suggestion.
the Telerik team
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