title: DataGridView checkbox column - value and functionality
body: <p>I've added a checkbox column to a DataGridView in my C# form. The function needs to be dynamic - you select a customer and that brings up all of their items that could be serviced, and you select which of them you wish to be serviced this time around.</p>
  
  <p>Anyway, the code will now add a chckbox to the beginning of the DGV. What I need to know is the following:</p>
  
  <p>1) How do I make it so that the whole column is "checked" by default?
  2) How can I make sure I'm only getting values from the "checked" rows when I click on a button just below the DGV?</p>
  
  <p>Here's the code to get the column inserted:</p>
  
  <pre><code>DataGridViewCheckBoxColumn doWork = new DataGridViewCheckBoxColumn();
              doWork.HeaderText = "Include Dog";
              doWork.FalseValue = "0";
              doWork.TrueValue = "1";
              dataGridView1.Columns.Insert(0, doWork);
  </code></pre>
  
  <p>So what next?
  Any help would be greatly appreciated!</p>