Close a form from another thread?

Close a form from another thread?

• PhilipHaugaard

  Ok... I dont understand what you are telling me, maybe you dont understand me either.

  The code speak for itself. ^_^ better then I

  Form2 FormStatus = new Form2 ();

  private void DoSomething()

  {

  FormStatus.Show("Please Wait a LOT!!");

  ThreadStart ThrStart = new ThreadStart(Cuadra);

  Thread DoThread = new Thread(ThrStart);

  DoThread.Name = "Thread1";

  DoThread.Start();

  }

  private void Cuadra()

  {

  SqlConnection Conn = new SqlConnection(Form2.RutaConn + ";Asynchronous Processing=true");

  SqlCommand command = new SqlCommand("cuadra_accthist", Conn);

  command.CommandType = CommandType.StoredProcedure;

  SqlParameter Periodo = command.Parameters.Add("@Periodo", SqlDbType.VarChar, 6);

  command.CommandTimeout = 60;

  Periodo.Value = textBox1.Text.Trim();

  try

  {

  Conn.Open();

  AsyncCallback callback = new AsyncCallback(HandleCallback);

  command.BeginExecuteNonQuery(callback, command);

  isExecuting = true;

  }

  catch (SqlException SqlEx)

  {

  MessageBox.Show("Ha Ocurrido el siguiente Error :" + Environment.NewLine + SqlEx.Message, "Error al ejecutar el SP", MessageBoxButtons.OK, MessageBoxIcon.Error);

  }

  }

  private void HandleCallback(IAsyncResult result)

  {

  try

  {

  SqlCommand command = (SqlCommand)result.AsyncState;

  int rowCount = command.EndExecuteNonQuery(result);

  string rowText = " Filas Afectadas.";

  if (rowCount == 1)

  {

  rowText = " Fila Afectada.";

  }

  rowText = rowCount + rowText;

  isExecuting = false;

  //Here i want close the FormStatus (Form2) and i get the Exception Cross-Thread.

  MessageBox.Show("Proceso Terminado Correctamente" + Environment.NewLine + rowText, "Terminado", MessageBoxButtons.OK, MessageBoxIcon.Information);

  }

  catch (Exception Ex)

  {

  MessageBox.Show("Proceso Erroneo" + Ex.Message, "Fallo", MessageBoxButtons.OK, MessageBoxIcon.Information);

  }

  }

  
  
  

• Reva

  public delegate void CloseDelagate();

  Add this line before Form2 class. To close form, you need form reference. If it is called "FormStatus", instead of:

  FormStatus.Close();

  write:

  FormStatus.Invoke(new CloseDelegate(Form2.Close));

  
  

• Damir Dobric

  delegate void CloseDelagate();

  Having Form reference in another thread, you can close it by the following way:

  form.Invoke(new CloseDelegate(form.Close));

  
  

• mveeravagu

  I really need help! so please Help.
  
  

• Jesper L. Nielsen

  Alex Farber & ahmedilyas thank you! i start to read again and now i understand very well.

  
  
  

• Kiwi_Ant

  take a look, particular to my answer, on how to Invoke the UI from another thread:

  http://forums.microsoft.com/MSDN/ShowPost.aspx PostID=564275&SiteID=1

  
  
  
• Close a form from another thread?