DataGridView checkbox column - value and functionality

Question

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 s

Answer 1

1) How do I make it so that the whole column is "checked" by default?

var doWork = new DataGridViewCheckBoxColumn();
doWork.Name = "IncludeDog" //Added so you can find the column in a row
doWork.HeaderText = "Include Dog";
doWork.FalseValue = "0";
doWork.TrueValue = "1";

//Make the default checked
doWork.CellTemplate.Value = true;
doWork.CellTemplate.Style.NullValue = true;

dataGridView1.Columns.Insert(0, doWork);

2) How can I make sure I'm only getting values from the "checked" rows?

foreach (DataGridViewRow row in dataGridView1.Rows)
{
    if (row.IsNewRow) continue;//If editing is enabled, skip the new row

    //The Cell's Value gets it wrong with the true default, it will return         
    //false until the cell changes so use FormattedValue instead.
    if (Convert.ToBoolean(row.Cells["IncludeDog"].FormattedValue))
    {
        //Do stuff with row
    }
}