Background worker thread

http://msdn.microsoft.com/en-us/library/system.componentmodel.backgroundworker.aspx
public partial class ProgressDialog : Form


{

public delegate void CancelEventHandler();

public event CancelEventHandler CancelButtonClick;



public ProgressDialog()

{

InitializeComponent();

}



private void buttonCancel_Click(object sender, EventArgs e)

{

if (CancelButtonClick != null)

{

CancelButtonClick();

}

this.Close();

}



public void UpdateProgressMessage(string progressMessage)

{

lblProgressMessage.Text = progressMessage;

}





}
 
private delegate void ShowProgressDialog_Delegate(string progressDialogCaption, ProgressDialog.CancelEventHandler progressCancelled, bool reportProgress);


private void ShowProgressDialog(string progressDialogCaption, ProgressDialog.CancelEventHandler progressCancelled, bool reportProgress)

{

if (InvokeRequired)

{

BeginInvoke(new ShowProgressDialog_Delegate(ShowProgressDialog), new object[] { progressDialogCaption, progressCancelled, reportProgress });

}

else

{

try

{

progressDialog = new ProgressDialog();

progressDialog.Owner = base.FindForm();

progressDialog.CancelButtonClick += progressCancelled;

progressDialog.Text = progressDialogCaption;

if (reportProgress)

{

progressDialog.progressBar.Style = ProgressBarStyle.Continuous;

}

progressDialog.Show();

}

catch { }

}



}

///

/// Close the Progress Dialog

///

private delegate void StopProgressDialog_Delegate();

private void StopProgressDialog()

{

if (InvokeRequired)

{

BeginInvoke(new StopProgressDialog_Delegate(StopProgressDialog), new object[] { });

}

else

{

if (!progressDialog.IsDisposed)

{

progressDialog.Close();

}

}



}



private void backgroundWorker1_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)

{

StopProgressDialog();



if (e.Cancelled == true)

{

MessageBox.Show("Installation Cancelled!");

}

else if (e.Error != null)

{

MessageBox.Show("Installation Error: " + e.Error.Message);

}

else

{

MessageBox.Show("Installed successfully!");

}



}



void progress_CancelButtonClick()

{

TestsOptionChanged_Click(null, null);

abortFlag = true;

}