Question

I have a CopyFile and Directory project. But when I started to copy Gui, it freezes. I can’t do anything with file copying. So I found my solution at BackgroundWorker Component. But I have a problem with this component too.

There are 3 radio buttons and command button. When I click the command button, it’s checking if radiobutton1 is checked or else if radiobutton2 checked or else if radiobutton3 is checked. If radiobutton1 is checked, do a lot things, or if radiobutton2 checked, do another thing, etc. There are 3 backgroundworkers for 3 radiobuttons. When I checked radiobutton1, backgroundworker1 dowork event working. When I checked radiobutton2, backgroundworker2 dowork event working. etc…

My problem is when I checked radiobutton1 and click commmand button. Starting backgroundworker1 do work event but it’s also continuing to control if radiobutton2 is checked or not. It is not stopping, so I am getting errors. My code is below:

private void button1_Click(object sender, EventArgs e) {     if (radioButton1.Checked)     {         backgroundWorker1.RunWorkerAsync();     }      if (radioButton2.Checked)     {         StreamReader sr = new StreamReader(Application.StartupPath + @'\hakimler.txt');          while ((satir = sr.ReadLine()) != null)         {             try             {                 bool copy = CopyDirectory(DosyaYolu.kaynak, @'\\' + satir + @'' + DosyaYolu.hedef, true);                 if (copy)                 {                     kopya += 1;                 }                 else                 {                     sw.WriteLine(satir);                 }             }             catch (Exception)             {              }         }          sw.Close();         MessageBox.Show('İşlem tamamlandı', 'İşlem Sonu', MessageBoxButtons.OK, MessageBoxIcon.Information);         lblkopya.Text = 'Başarıyla tamamlanan iş sayısı : ' + kopya.ToString();         return;     }      if (chkPersonel.Checked == true)     {         StreamReader sr = new StreamReader(Application.StartupPath + @'\personel.txt');          while ((satir = sr.ReadLine()) != null)         {             try             {                 bool copy = CopyDirectory(DosyaYolu.kaynak, @'\\ab04500-' + satir + @'' + DosyaYolu.hedef, true);                 //bool copy = CopyDirectory(Application.StartupPath + @'\TELEFON REHBERİ', @'\\' + satir + @'\c$\Documents and Settings\All Users\Start Menu', true);                 if (copy)                 {                     kopya += 1;                 }                 else                 {                     sw.WriteLine(satir);                 }             }             catch (Exception)             {              }         }          sw.Close();          MessageBox.Show('İşlem tamamlandı', 'İşlem Sonu', MessageBoxButtons.OK, MessageBoxIcon.Information);         lblkopya.Text = 'Başarıyla tamamlanan iş sayısı : ' + kopya.ToString();         return;     }     else     {         if (txtBilgisayar.Text == '' && txtDongu.Text == '')         {             MessageBox.Show('Boşlukları dolduralım bi zahmet :@', 'Bilgisayar Kodlarını girelim lütfen!', MessageBoxButtons.OK, MessageBoxIcon.Warning);             return;         }          bilgisayar = Convert.ToInt32(txtBilgisayar.Text);         dongu = Convert.ToInt32(txtDongu.Text);          for (int i = bilgisayar; i <= dongu; i++)         {             try             {                 bool copy = CopyDirectory(DosyaYolu.kaynak, @'\\ab04500-' + bilgisayar + @'' + DosyaYolu.hedef, true);                 if (copy)                 {                     kopya += 1;                 }                 else                 {                 sw.WriteLine(satir);                 }             }             catch (Exception)             {              }              if (i == dongu)             {                 sw.Close();                 MessageBox.Show('İşlem tamamlandı', 'İşlem Sonu', MessageBoxButtons.OK, MessageBoxIcon.Information);                 lblkopya.Text = 'Başarıyla tamamlanan iş sayısı : ' + kopya.ToString();             }              bilgisayar += 1;         }  }   private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e) {     sw = new StreamWriter(DateTime.Today.ToShortDateString().ToString() + '_ulasmayanlar.txt', true);     StreamReader sr = new StreamReader(Application.StartupPath + @'\savcilar.txt');      while ((satir = sr.ReadLine()) != null)     {         try         {             bool copy = CopyDirectory(DosyaYolu.kaynak, @'\\' + satir + @'' + DosyaYolu.hedef, true);             //bool copy = CopyDirectory(Application.StartupPath + @'\TELEFON REHBERİ', @'\\' + satir + @'\c$\Documents and Settings\All Users\Start Menu', true);             if (copy)             {                 kopya += 1;             }             else             {                 sw.WriteLine(satir);             }         }         catch (Exception)         {          }     } }  private void backgroundWorker1_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e) {     sw.Close();      MessageBox.Show('İşlem tamamlandı', 'İşlem Sonu', MessageBoxButtons.OK, MessageBoxIcon.Information);     lblkopya.Text = 'Başarıyla tamamlanan iş sayısı : ' + kopya.ToString(); } 

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its control if radiobutton1 chechked or not if its checked true its start bgworkers do work event and its going to continue if radiobutton2 checked or not if radiobutton3 checked or not blabla its not stopping when its see radiobutton1 checked true.

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yes i want to stop controlling the another radiobutton’s chechked true or not.if radiobutton1’s chechked is true only do backgroundworkers dowork event and STOP.

Answer 1

I’m not quite sure what your problem exactly is, but in your code if your radioButton1 is Checked then the Background worker will do it’s thing, else it won’t. Isn’t that what you want?

I don’t see any code for other radio buttons you mention.

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Ah, so you want to stop the background workers when you check antoher radio button? In your dowork() method you’ll have to check if bg.CancellationPending == true and exit the method if it is.

Also you have to set WorkerSupportsCancellation to true after you initialize the BG worker.