C#

static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new FormTester()); //From this line appears NullReferenceException
        }

memorexr wrote:

initGridView();

Abhinav S wrote:

This is probably where you are getting the error

Henry Minute wrote:

In what way does it not work?

Luc Pattyn wrote:

- start a thread that loops a combination of doUpdate and a Thread.Sleep

private void threadRunner() {
    while(!stopThreadRunner) {
        doIt();
        Thread.Sleep(3000);
    }
}

   private void bgw_DoWork(...) {
    while(!stopThreadRunner) {
        calculate();
        reportProgress(...);  // to update GUI
        Thread.Sleep(3000);
    }
}

public void
PopulateGrid
(
)
{
    foreach
    (
        System.Data.DataRow src
    in
        this.TableDef.DataTable.Rows
    )
    {
        System.Windows.Forms.DataGridViewButtonCell action =
            (System.Windows.Forms.DataGridViewButtonCell) src [ this.dgvData.Columns.Count - 1 ] ;

        System.Windows.Forms.DataGridViewRow dst =
            new System.Windows.Forms.DataGridViewRow() ;

        for ( int c = 0 ; c < this.dgvData.Columns.Count - 1 ; c++ )
        {
            System.Windows.Forms.DataGridViewTextBoxCell cell =
                new System.Windows.Forms.DataGridViewTextBoxCell() ;

            cell.Value = src [ c ] ;

            cell.Style.BackColor = action.Style.BackColor ;

            dst.Cells.Add ( cell ) ;
        }

        dst.Cells.Add ( action ) ;

        this.AddGridRow ( dst ) ;
    }

    return ;
}

this.AddGridRow = delegate
(
    System.Windows.Forms.DataGridViewRow Row
)
{
    if ( this.InvokeRequired )
    {
        this.Invoke ( this.AddGridRow , Row ) ;
    }
    else
    {
        this.dgvData.Rows.Add ( Row ) ;
    }

    return ;
} ;

System.Diagnostics.Debugger.Break();

using System.Diagnostics;
...
if(Debugger.IsAttached)
   {
   Debugger.Break();
   }