title: Adding rows on datagridview manually
body: <p>I've inserted a checkbox column and textbox column on the datagridview.
  how can add rows manually on the textbox column.</p>
  
  <p>It should be like this:</p>
  
  <pre><code>checkbox | textbox
  ............................
  checkbox | item1
  checkbox | item2
  checkbox | item3
  checkbox | item4
  </code></pre>
  
  <p>Here is the code for checkbox and textbox on datagridview</p>
  
  <pre><code>public void loadgrid()
  {
      DataGridViewCheckBoxColumn checkboxColumn = new DataGridViewCheckBoxColumn();
      CheckBox chk = new CheckBox();
      checkboxColumn.Width = 25;
      dataGridView1.Columns.Add(checkboxColumn);
  
      DataGridViewTextBoxColumn textboxcolumn = new DataGridViewTextBoxColumn();
      TextBox txt = new TextBox();
      textboxcolumn.Width = 150;
      dataGridView1.Columns.Add(textboxcolumn);     
  }
  </code></pre>