title: How to bind DataTable to DataGridView that consists of a DatagridViewTextBoxColumn and a DataGridViewComboBoxColumn?
body: <p>I want to ask you a question about my project.</p>
  
  <p>I have a <code>DataGridView</code> in my C# project which has two columns: One is <code>DataGridViewTextBoxColumn</code>, the other is <code>DataGridViewComboBoxColumn</code>. </p>
  
  <p>I have <strong><em>usernames</em></strong> and <strong><em>authorities</em></strong> columns in my DB. <strong><em>Usernames</em></strong> are email addresses like <strong><em>abc@domain.com</em></strong> and <strong><em>authorities</em></strong> are either <strong>user</strong> or <strong>admin</strong>. </p>
  
  <p>I want to bind via <code>DataTable</code> <strong><em>usernames</em></strong> to <code>DataGridViewTextBoxColumn</code> and <strong><em>authorities</em></strong> to <code>DataGridViewComboBoxColumn</code> but combo boxes must show usernames' authority by default and also have the option to change it between <strong><em>user</em></strong> and <strong><em>admin</em></strong>.</p>
  
  <p>Thanks for any help.</p>