title: The name 'btn2' does not exist in the current context
body: <p>Below i put some part of the code the problem is btn2.tag.
  it says " The name 'btn2' does not exist in the current context "  how can i fix the issue? what is(are) the way(s)? </p>
  
  <pre><code>    public Main()
      {
          InitializeComponent();
  
          // bla bla bla
  
          int NumOfButtons = 12;
  
          int loc = 20; 
          int k = 5;
  
          for (int i = 1; i &lt;= NumOfButtons; i++)
          {
              Button btn = new Button();
              {
                  lst.Location = new Point(4, 4);
                  btn.Size = new Size(55, 55);
                  btn.Tag = i;
  
                  command.CommandText = "select product_Name from T_Product where PRODUCT_ID = " + btn.Tag;
                  btn.Text = command.ExecuteScalar().ToString();  
  
                  btn.Location = new Point(k, loc);
              }
  
  
              btn.Click += Buttons_Click;  
  
      }
  
      private void Buttons_Click(System.Object sender, System.EventArgs e)
      {
          isclicked = true;
          // Used "Sender" to know which button was clicked ?
          Button btn = sender as Button;
  
          Button btn2 = sender as Button;
          btn2.Tag = btn.Tag;
  
  
      }
  
      private void button5_Click(object sender, EventArgs e)
      {
          if (textBox1.Text != "")
          {
              SqlConnection conn = new SqlConnection(@"server=.\SQLEXPRESS;Initial Catalog=DUK1;Integrated Security=True;Pooling=False");
              command.Connection = conn;
              conn.Open();      
              command.CommandText = "select product_PRIZE from T_Product where PRODUCT_ID = " + btn2.Tag;   // here problem occurs
  
              textBox5.Text = comando.ExecuteScalar().ToString();
          }
  </code></pre>
  
  <p>}</p>
  
  <p>////// </p>
  
  <p>i have some buttons(12) in this example and when i click on the button5 and when i click on the button5, i want to display prize according to the btn2.Tag ( which is one of the 12 button's tag) .</p>
  
  <p>how will i make it.</p>