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| How to: Search files from a certain directory with Progressbar + Backgroundworker |
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Posted by: ryanshane91 - 10-31-2017, 07:25 AM - Forum: VB.NET
- Replies (1)
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Hello Everyone, Admin. I'm new to this Forum and i want to ask how to search files from a certain directory with progressbar & background worker?Â
Code: (from the Admin-(Brandonio)) :
----------------------------------------------------------------------------------------------------------
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
    BackgroundWorker1.RunWorkerAsync()
  End Sub
  Private Sub BackgroundWorker1_DoWork(ByVal sender As System.Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles BackgroundWorker1.DoWork
    Dim directory = "Path"
    Dim files() As System.IO.FileInfo
    Dim dirinfo As New System.IO.DirectoryInfo(directory)
    files = dirinfo.GetFiles("*", IO.SearchOption.AllDirectories)
    For Each file In files
      ListBox1.Items.Add(file)
    Next
  End Sub
----------------------------------------------------------------------------------------------------------
But whenever i click the button, i get an error saying :Â Cross-thread operation not valid: Control 'ListBox1' accessed from a thread other than the thread it was created on.
----------------------------------------------------------------------------------------------------------
I'm new in VB.NET and i'm making an application that cleans up the Temporary folder.
Thank you. and uh, i like this forum.
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| Database error anyone help? |
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Posted by: sc2142 - 01-24-2017, 03:54 PM - Forum: VB.NET
- Replies (2)
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Im trying to connect my vb.NET Application to my database witch is on my website. Im getting this error:Â
"An unhandled exception of type 'MySql.Data.MySqlClient.MySqlException' occurred in MySql.Data.dllÂ
Additional information: Unable to connect to any of the specified MySQL hosts."Â
The error is being called on "sconnection.open()"Â
Ive searched google and i cant find whats wrong. My site is through Hosting24. Code: http://pastebin.com/Gd4JCakQ
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| Character ammount |
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Posted by: .righteous - 04-25-2016, 06:32 AM - Forum: Java
- Replies (1)
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I've just finished watching your tenth "Learning Java" part and I want to limit the character number to five digits only.Â
I've tried this:
Code: import java.util.*;
public class digitExtractorTester {
static Scanner userInput = new Scanner(System.in);
public static void main(String[] args){
String rNumber = "12345";
System.out.print("Enter a custom, five digit number: ");
String nSequence = userInput.next();
System.out.println(" ");
if (nSequence.chars() != rNumber.chars()){
System.out.println("Your input contains too many or too less digits.\nOnly five digit numbers are allowed.");
}
else{
digitExtractor byMath = new digitExtractor(Integer.valueOf(nSequence));
byMath.returnNumberSequenceByMath();
System.out.println(" ");
digitExtractor byChar = new digitExtractor(nSequence);
byChar.returnNumberSequenceByChar();
}
}
}
Never mind. I solved my own problem.
If anyone's wondering, I was using chars() when I was supposed to be using length(). (Source of information)
Code: nSequence.length() != rNumber.length()
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