C#

private void Form1_FormClosing(object sender,EventArgs e)
   {
   DialogResult ds = MessageBox.Show("exit?", "exit", MessageBoxButtons.YesNo);
   FormClosingEventArgs ee = (FormClosingEventArgs)e;
   if (ds == DialogResult.Yes)
      {
      ee.Cancel = false;
      }
   else
      {
      ee.Cancel = true;
      }
   }

private void Form1_Load(object sender, EventArgs e)
   {
   button1_Click+= Form1_FormClosing;
   }

private void Form1_FormClosing(object sender,EventArgs e)
   {
   DialogResult ds = MessageBox.Show("exit?", "exit", MessageBoxButtons.YesNo);
   if (e is FormClosingEventArgs)
      {
      FormClosingEventArgs ee = e as FormClosingEventArgs;
      ee.Cancel = (ds == DialogResult.No);
      }
   }

private void Button1_Click(object sender, EventArgs e)
   {
   this.Close();
   }

Label_0104:
foreach (Character character in this.charSet)///Error of stack overflow execption in Charset//
{
   foreach (CharClass class2 in classArray)
   {
      if (character.type == class2)
      {
         num17++;
         goto Label_0104;
      }
   }
}

Label_0104:
foreach (Character character in this.charSet) ///Error of stack overflow execption in Charset//
   {
   foreach (CharClass class2 in classArray)
      {
      if (character.type == class2)
         {
         num17++;
         goto Label_0104;
         }
      }
   }

Label_0104:
foreach (Character character in this.charSet)
{
    foreach (CharClass class2 in classArray)
    {
      if (character.type == class2)
      {
        num17++;
        goto Label_0104;
      }
    }
}

radhikasharma wrote:

Label_0104:
foreach (Character character in this.charSet)///Error of stack overflow execption in Charset//
{
foreach (CharClass class2 in classArray)
{
if (character.type == class2)
{
num17++;
goto Label_0104;
}
}
}

for(char ch = (char) 0; ch < 128; ch++)
{
    // do something with char
}

private void button1_Click(object sender, EventArgs e)
       {
           SqlConnection co = new SqlConnection();
           co.ConnectionString = @"Server=.\SQLEXPRESS;initial catalog='NORTHWND.MDF';Trusted_Connection=Yes";
           SqlCommand cmdSelect = new SqlCommand();
           cmdSelect.Connection = co;
           cmdSelect.CommandText = "SELECT (FirstName+' '+LastName) AS Fullname FROM Employees";
           SqlDataAdapter da = new SqlDataAdapter(cmdSelect);
           DataTable dt = new DataTable();
           co.Open();
           da.Fill(dt);
           comboBox1.DataSource = null;
           comboBox1.DataSource = dt;
           comboBox1.ValueMember = "Fullname";
           co.Close();
       }
       private void button2_Click(object sender, EventArgs e)
       {
           DataTable dt = (DataTable)comboBox1.DataSource;
           DataRow dr = dt.NewRow();
           dr[0] = "< select item >";
           dt.Rows.InsertAt(dr, 0);
           comboBox1.DataSource = dt;

           comboBox1.SelectedIndex = 0;
       }