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Prevent Users From Inserting Or. Here are the sample format and insert. Turn this feature on and Excel automatically changes the workbook to a shared workbook if it is not already shared.
2 You can use a trycatch block on the insert so when it fails on duplicates it will jump into the catch. Preventing Users from Inserting More Worksheets Excel lets you protect a workbooks structure so that users cannot delete worksheets rearrange the order in which they appear rename them and so forth. After I insert two records with the same tutorname the trigger does not block me from inserting it.
In the Group or user names list add the user or group that you want to set Deny permissions for.
Press Alt F11 to open a Microsoft Visual Basic for Application window. Turn this feature on and Excel automatically changes the workbook to a shared workbook if it is not already shared. To prevent other users from accidentally or deliberately changing moving or deleting data in a worksheet you can lock the cells on your Excel worksheet and then protect the sheet with a password. In the left VBAProject pane double click ThisWorkbook to open the Module then copy and paste the following code.