I'm not sure where this is going wrong, but any help would be appreciated.

I'm trying to add a column to an edit column to a grid (I also want to add a delete column, but I haven't gotten that far yet). I can make the column display without a problem, but the moment I click the button I get very odd results - the button disappears, my column headers move across and one of the bits of content from another of my columns vanishes entirely. I found it rather funny at first, but then I couldn't find out why it was doing it.

My code is below.

• After each file is uploaded to the temp folder, prompt the user to enter additional info about the file (I can see how to do this from the posted demo)
• Persist the additional fields and file info until a specific button triggers a postback (I posted another thread asking how to use a PostbackTrigger when the triggering control is in a different user control)
• In the OnFileUploaded server-side event handler, prevent the file from being auto-saved to TargetFolder, and instead save the uploaded file to a SharePoint document library along with the metadata provided in the "additional fields" on the client

I know that this is not the exact wording of the pop-ups and drop-downs.
I get a drop-down from Telerik in visual studio stating that there is a new update; I select ok.  Even if I go and update the project from the menu bar, I get the error when I run up the page. Sometimes I will see the issue right when looking at the page in design mode.

The way I have been fixing the issue,  delete  the reference and reassociate the Telerik reference.  I believe that then the project is not using he newest Telerik controls.

 I have no custom skins or controls.

Error:

Telerik.Web.UI.RadTabStrip with ID='RadTabStrip1' was unable to find an embedded skin with the name 'Forest'. Please, make sure that the skin name is spelled correctly and that you have added a reference to the Telerik.Web.UI.Skins.dll assembly in your project. If you want to use a custom skin, set EnableEmbeddedSkins=false.

Sys.Application.add_init(function() {
    $create(Telerik.Web.UI.RadToolTip, {"_cssClass":"","_manualCloseButtonText":"Close","clientStateFieldID":"ctl00_ctl00_ContentPlaceholder1_MiddleColumn_ctl00_CandidateListGrid_ctl00_ctl04_MessageUSGToolTip_ctl00_ClientState","formID":"aspnetForm","relativeTo":1,"skin":"USGFOEXTelerik","targetControlID":"ctl00_ctl00_ContentPlaceholder1_MiddleColumn_ctl00_CandidateListGrid_ctl00_ctl04_MessageImage","text":"Dit is een bericht verkregen uit hercules:\u003cbr /\u003ede status is ToValidate"}, null, null, $get("ctl00_ctl00_ContentPlaceholder1_MiddleColumn_ctl00_CandidateListGrid_ctl00_ctl04_MessageUSGToolTip_ctl00"));
});