How to delete a folder in an external drive in vb?
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
add a comment |
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
Are you executing this code on a secondary thread?
– TnTinMn
Nov 17 '18 at 4:52
add a comment |
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
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
.net vb.net
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
add a comment |
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
add a comment |
1 Answer
1
active
oldest
votes
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.
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 useControl.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
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
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.
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 useControl.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
add a comment |
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.
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 useControl.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
add a comment |
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.
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.
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 useControl.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
add a comment |
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 useControl.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
add a comment |
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Are you executing this code on a secondary thread?
– TnTinMn
Nov 17 '18 at 4:52