How to delete a folder in an external drive in vb?












0















I'm having some issues with this program I'm trying to make. It's a simple program that deletes a folder from my SD card. But when I go to run it, click the button that does this action, it spits out this error:




Could not find a part of the path 'C:sdcafiine'.




This is the code I used:



Dim path As String = Form1.ComboBox1.Text & "sdcafiine"
System.IO.Directory.Delete(path, True)


I have another form that has a combobox in it with drive letters in it. This line of code basically reads the drive number and merges it with the path, to create something like "L:sdcafiine", or "O:sdcafiine."



For some reason, it replaces that read drive letter with "C:".










share|improve this question

























  • Are you executing this code on a secondary thread?

    – TnTinMn
    Nov 17 '18 at 4:52
















0















I'm having some issues with this program I'm trying to make. It's a simple program that deletes a folder from my SD card. But when I go to run it, click the button that does this action, it spits out this error:




Could not find a part of the path 'C:sdcafiine'.




This is the code I used:



Dim path As String = Form1.ComboBox1.Text & "sdcafiine"
System.IO.Directory.Delete(path, True)


I have another form that has a combobox in it with drive letters in it. This line of code basically reads the drive number and merges it with the path, to create something like "L:sdcafiine", or "O:sdcafiine."



For some reason, it replaces that read drive letter with "C:".










share|improve this question

























  • Are you executing this code on a secondary thread?

    – TnTinMn
    Nov 17 '18 at 4:52














0












0








0








I'm having some issues with this program I'm trying to make. It's a simple program that deletes a folder from my SD card. But when I go to run it, click the button that does this action, it spits out this error:




Could not find a part of the path 'C:sdcafiine'.




This is the code I used:



Dim path As String = Form1.ComboBox1.Text & "sdcafiine"
System.IO.Directory.Delete(path, True)


I have another form that has a combobox in it with drive letters in it. This line of code basically reads the drive number and merges it with the path, to create something like "L:sdcafiine", or "O:sdcafiine."



For some reason, it replaces that read drive letter with "C:".










share|improve this question
















I'm having some issues with this program I'm trying to make. It's a simple program that deletes a folder from my SD card. But when I go to run it, click the button that does this action, it spits out this error:




Could not find a part of the path 'C:sdcafiine'.




This is the code I used:



Dim path As String = Form1.ComboBox1.Text & "sdcafiine"
System.IO.Directory.Delete(path, True)


I have another form that has a combobox in it with drive letters in it. This line of code basically reads the drive number and merges it with the path, to create something like "L:sdcafiine", or "O:sdcafiine."



For some reason, it replaces that read drive letter with "C:".







.net vb.net






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edited Nov 17 '18 at 6:04









James Z

11.2k71935




11.2k71935










asked Nov 17 '18 at 4:49









w60w60

165




165













  • Are you executing this code on a secondary thread?

    – TnTinMn
    Nov 17 '18 at 4:52



















  • Are you executing this code on a secondary thread?

    – TnTinMn
    Nov 17 '18 at 4:52

















Are you executing this code on a secondary thread?

– TnTinMn
Nov 17 '18 at 4:52





Are you executing this code on a secondary thread?

– TnTinMn
Nov 17 '18 at 4:52












1 Answer
1






active

oldest

votes


















0














Nevermind, I got it to work.



It was in a BackgroundWorker, which may have not been a smart choice. I removed the BGWorker and put the code directly in the Button.Click method, and it works now.






share|improve this answer
























  • For future reference: You should NEVER access the user interface directly from a background thread/task. If you need to interact with the UI from the background you must use Control.Invoke() in order to marshal the call to execute on the UI thread itself. For more information see: How can I run code in a background thread and still access the UI?

    – Visual Vincent
    Nov 17 '18 at 8:12













  • The golden rule of WinForms is: Leave all UI related work on the UI thread!

    – Visual Vincent
    Nov 17 '18 at 8:13











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1 Answer
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active

oldest

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oldest

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0














Nevermind, I got it to work.



It was in a BackgroundWorker, which may have not been a smart choice. I removed the BGWorker and put the code directly in the Button.Click method, and it works now.






share|improve this answer
























  • For future reference: You should NEVER access the user interface directly from a background thread/task. If you need to interact with the UI from the background you must use Control.Invoke() in order to marshal the call to execute on the UI thread itself. For more information see: How can I run code in a background thread and still access the UI?

    – Visual Vincent
    Nov 17 '18 at 8:12













  • The golden rule of WinForms is: Leave all UI related work on the UI thread!

    – Visual Vincent
    Nov 17 '18 at 8:13
















0














Nevermind, I got it to work.



It was in a BackgroundWorker, which may have not been a smart choice. I removed the BGWorker and put the code directly in the Button.Click method, and it works now.






share|improve this answer
























  • For future reference: You should NEVER access the user interface directly from a background thread/task. If you need to interact with the UI from the background you must use Control.Invoke() in order to marshal the call to execute on the UI thread itself. For more information see: How can I run code in a background thread and still access the UI?

    – Visual Vincent
    Nov 17 '18 at 8:12













  • The golden rule of WinForms is: Leave all UI related work on the UI thread!

    – Visual Vincent
    Nov 17 '18 at 8:13














0












0








0







Nevermind, I got it to work.



It was in a BackgroundWorker, which may have not been a smart choice. I removed the BGWorker and put the code directly in the Button.Click method, and it works now.






share|improve this answer













Nevermind, I got it to work.



It was in a BackgroundWorker, which may have not been a smart choice. I removed the BGWorker and put the code directly in the Button.Click method, and it works now.







share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 17 '18 at 4:52









w60w60

165




165













  • For future reference: You should NEVER access the user interface directly from a background thread/task. If you need to interact with the UI from the background you must use Control.Invoke() in order to marshal the call to execute on the UI thread itself. For more information see: How can I run code in a background thread and still access the UI?

    – Visual Vincent
    Nov 17 '18 at 8:12













  • The golden rule of WinForms is: Leave all UI related work on the UI thread!

    – Visual Vincent
    Nov 17 '18 at 8:13



















  • For future reference: You should NEVER access the user interface directly from a background thread/task. If you need to interact with the UI from the background you must use Control.Invoke() in order to marshal the call to execute on the UI thread itself. For more information see: How can I run code in a background thread and still access the UI?

    – Visual Vincent
    Nov 17 '18 at 8:12













  • The golden rule of WinForms is: Leave all UI related work on the UI thread!

    – Visual Vincent
    Nov 17 '18 at 8:13

















For future reference: You should NEVER access the user interface directly from a background thread/task. If you need to interact with the UI from the background you must use Control.Invoke() in order to marshal the call to execute on the UI thread itself. For more information see: How can I run code in a background thread and still access the UI?

– Visual Vincent
Nov 17 '18 at 8:12







For future reference: You should NEVER access the user interface directly from a background thread/task. If you need to interact with the UI from the background you must use Control.Invoke() in order to marshal the call to execute on the UI thread itself. For more information see: How can I run code in a background thread and still access the UI?

– Visual Vincent
Nov 17 '18 at 8:12















The golden rule of WinForms is: Leave all UI related work on the UI thread!

– Visual Vincent
Nov 17 '18 at 8:13





The golden rule of WinForms is: Leave all UI related work on the UI thread!

– Visual Vincent
Nov 17 '18 at 8:13


















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