C#

<br />
private void button1_Click(object sender, EventArgs e)<br />
        {<br />
           <br />
<br />
           //mymethod(this.dataGridView1.CurrentCell.Value);<br />
<br />
           int row, col;<br />
           row = 3;<br />
           col = 2;<br />
<br />
           mymethod(this.dataGridView1[col, row].Value);        <br />
<br />
        }<br />
 public void mymethod(Object obj)<br />
        {<br />
            MessageBox.Show(obj.ToString());<br />
        }

JoeRip wrote:

Now, the last line is going to fail, because dt.Columns[dc2].AllowDBNull is false.

public bool FillOutMyRow(out DataRow dr)
{
     if (dr == null)
     {
          return false;     
     }
     // fill out the data
     dr["first_column"] = 1;
     return true;
}

static void Main()
{
  int i = 1;
  NoRef(i);
  Console.WriteLine(i); // prints '1'

  WithRef(ref i);
  Console.WriteLine(i); // prints '2'
}

static void NoRef(int i)
{
 i = i +1;
}

static void WithRef(ref int i)
{
 i = i + 1;
}

static void Main()
{
   int i = 0;
   SetOut(out i);
   Console.WriteLine(i); // prints '1'
}

static vouid SetOut(out int i)
{
 i = 1;
}