Application screenupdating

12-Aug-2017 15:34

Disabled Enabled 0.61909653 2.105066913 0.619555829 2.106865363 0.620805767 2.106866315 0.625528325 2.102403315 0.625319976 2.0991179 0.621287448 2.105103142 0.621540236 2.101392665 0.624537531 2.106866716 0.620401789 2.109004449 There is one important thing to know about screen updating which I didn’t see in any previous answer.

From my own test I find out that turning screen updating off and on takes about 15ms (tested in C# via Excel Interop).

Screen Updating = False 'swap between sheets 1/2 (need both sheets or this will crash) For i = 1 To numb Switches Sheets(1 (i Mod 2)). Screen Updating = True 'get results for part two results = results & vb Cr Lf & "Screen Updating IS disabled: " & Format(Time - start Time, "hh:mm:ss") & " seconds" 'show results Msg Box results End Sub Firstly I've been using the script written by Richie (UK) Post #7 Here It simply iterates through a loop changing the value of i in one cell.

I have changed it slightly so it loops 10,000 times and I execute it 10 times for sample size.

The grater the amount of screen changes the bigger the impact will be. Other application settings that can make a difference to execution time are Calculation and Event handling. Enable Events = False ' Code here Clean Up: On Error Resume Next Application. Calculation = xl Calculation Automatic Application. Enable Events = True Exit Sub EH: ' Do error handling Go To Clean Up End Sub Sub test Screen Updating() Dim i As Integer Dim numb Switches As Integer Dim results As String 'swap between sheets this number of times numb Switches = 1000 'keep track of time Dim start Time As Double start Time = Time 'swap between sheets 1/2 (need both sheets or this will crash) For i = 1 To numb Switches Sheets(1 (i Mod 2)).

Use this code template as a starting point (the error handler ensures that these properties are turned back on at the end of the sub, even if it errors) Sub Your Sub() On Error Go To EH Application. Select Next i 'get results results = "Screen Updating not disabled: " & Format(Time - start Time, "hh:mm:ss") & " seconds" start Time = Time 'scenario 2 - screenupdating disabled Application.

This can happen with recorded macros that have the word Select used frequently.

If this does happen, you may need to repeat the line: Application.

The reason it speeds up code is because Excel no longer needs to repaint the screen whenever it encounters such commands as Select, Activate, Large Scroll, Small Scroll and many others. Screen Updating=False should be placed at the Start of your macro like shown below Note how we have set the Screen Updating back to True on completion.

Display Vertical Scroll Bar = False End With Application. Enable Events = True End Sub Sub Back To Normal() Application.

Display Vertical Scroll Bar = True End With Application.

Na funkci to sice nemá vliv, ale je to uživatelsky nepříjemné.

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The reason it speeds up code is because Excel no longer needs to repaint the screen whenever it encounters such commands as Select, Activate, Large Scroll, Small Scroll and many others. Screen Updating=False should be placed at the Start of your macro like shown below Note how we have set the Screen Updating back to True on completion.

Display Vertical Scroll Bar = False End With Application. Enable Events = True End Sub Sub Back To Normal() Application.

Display Vertical Scroll Bar = True End With Application.

Na funkci to sice nemá vliv, ale je to uživatelsky nepříjemné.

A VBA add-in to quickly insert any of the sample code found on our site directly into the Visual Basic Editor, save your own frequently used code, and more!

Lorsque vous commencerez à écrire des applications "sérieuses", ou le temps d'exécution devient important, il peut être judicieux d'optimiser votre code.