I transferred the C# code from an application page (SharePoint 2010) to an identical application in C# under SharePoint 2013. Issue: the peopleeditor is blank but has a value behind.
peopleeditor.CommaSeparatedAccount = SPContext.Current.Web.CurrentUser.LoginName; peopleeditor.Validate();
After the above code I don't see anything in the peopleeditor "text box". I created a new textbox below - the next code however shows me that the value is there but is not visible:
txtValue.Text = peopleeditor.CommaSeparatedAccount; //I can see the value here.
Also what is strange is that the "Check Names" button located on the right side of the peopleeditor doesn't validate anymore the value in the "text box". Also the "Browse" button on the right side of the peopleeditor doesn't work properly anymore (it allows me to find the correct person but when I double-click on it the value is not transferred to the peopleeditor "text box").
I tried everything ... I'm out of ideas :(