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Excel custom Ribbon tab disappears after embedding RRS feed

  • Question

  • 1. Create new VSTO Excel 2010 add-in for .NET 4.0 project

    2. Add Ribbon with 1 button through designer

    3. Build on Windows 7 SP1 64 bit 

    4. Open Windows Explorer and Preview xlsx file (Show Preview Pane)

    5. Hide Preview Pane

    6. Open xlsx file

    7. Close opened file

    7. Open another xlsx file

    Expected: Custom Add-in tab visible

    Actual: Custom Add-in tab is not visible, add-in unloaded







    Monday, May 14, 2012 1:30 PM

All replies

  • please add big try/catch in add-in startup event to catch all sorts of exceptions (and log or show them). Usually plugin gets disabled if unhandled exception excapes sratup procedure and bubbles up to VSTOR
    Monday, May 14, 2012 2:26 PM
  • please add big try/catch in add-in startup event to catch all sorts of exceptions (and log or show them). Usually plugin gets disabled if unhandled exception excapes sratup procedure and bubbles up to VSTOR

    Thanks for your reply.

    My add-in startup is 

            private void ThisAddIn_Startup(object sender, System.EventArgs e)
            {
            }

    Monday, May 21, 2012 7:49 AM
  • The same issue reproduced when

    1. Create new VSTO Excel 2010 add-in for .NET 4.0 project

    2. Add Ribbon with 1 button through designer

    3. Build on Windows 7 SP1 64 bit 

    4. Open Windows Explorer and Preview xlsx file (Show Preview Pane)

    5. Click on xlsm file (No preview available) and open it

    6. Close opened file

    7. Open another xlsx file

    Expected: Custom Add-in tab visible

    Actual: Custom Add-in tab is not visible, add-in unloaded

    Does anybody knows reported issue of this kind or any workaround?




    Monday, May 21, 2012 7:54 AM