Umbraco DatePicker – Unknown server tag | Prolific Notion, Certified Umbraco Developer

Umbraco DatePicker – Unknown server tag

On 02 March 2010, In Umbraco, by Simon Dingley

I have recently needed to use the Umbraco datePicker control in a usercontrol I was creating however I kept getting presented with an “Unknown server tag ‘umbraco:datePicker” exception. After some digging around in the Umbraco Source it is confusingly not in the assembly I would have expected but it was in fact located in the cms.dll and not controls.dll. As a couple of other Umbracians posted this query a day or so after I found the solution I thought I would post it up for the benefit of others.

Simply include the following in your usercontrol:

<%@ Register TagPrefix="umbraco" Namespace="umbraco.controls" Assembly="cms" %>

and then use it as follows:

<umbraco:datePicker ID="datePicker1" runat="server" ShowTime="true"></umbraco:datePicker>

I hope this is of help to others and can be refactored asap to avoid any further confusion.

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One Response

deano004

03.02.10

Hello, sorry for commenting so long after the post, but this is the only place I could find anyting on this issue. However, if I try and use the datePicker control with the above method I still get “element datePicker is not a known element” message. I also get a compile error on the declaration of the datePicker control that “the type of namespace name datePicker does not exist in the namespace ‘umbraco.controls’. I have referenced cms.dll and controls.dll

Has the control been moved since your post? I’m using umbraco V4.5.2

Thanks for any assistance!