Hi all,
keep getting this problem and it's driving me nuts. I keep getting "updatepanel is undefined" in the designer file. This occurs for every update panel that I have in te .aspx. To clear it I just edit the designer file, delete the offending lines and it builds. The prolem is that whenever I edit the .aspx again the error reappears. This never happened before but it's driving me crazy. I'm using VS 2013.
any ideas?
A quick update - the designer file is defining the updatepanel as Global.System.Web.UI.WebControls.UpdatePanel. Shouldn't this be Global.System.Web.UI.UpdatePanel (no .webcontrols.). If I change it, VS keeps reverting back to .webcontrols.