Datagridview 添加checkbox列，并判断Datagridview 中的checkbox列是否被选中

DataGridViewCheckBoxColumn ChCol = new DataGridViewCheckBoxColumn();
ChCol.Name = "CheckBoxRow";
ChCol.HeaderText = "CheckboxSelection";
ChCol.Width = 50;
ChCol.TrueValue = "1";
ChCol.FalseValue = "0";
datagridview_tabpage1.Columns.Insert(0, ChCol);

private void button3_Click(object sender, EventArgs e)
{
string selectRows="";
for (int i = 0; i < dataGridView_tabPage1.Rows.Count - 1; i++) //循环datagridview每行
{
if ((bool)dataGridView_tabPage1.Rows[i].Cells[0].EditedFormattedValue == true)
{
selectRows = selectRows + "[" + i.ToString() + "]";

}
}

MessageBox.Show("Selected Rows:" + selectRows,"CheckBoxRows");

}

add check box in Datagridview

   // Initialize and add a check box column.
            DataGridViewColumn column = new DataGridViewTextBoxColumn();
            column = new DataGridViewCheckBoxColumn();
            column.DataPropertyName = "selection";
            column.Name = "selection";
            dataGridView_tabPage1.Columns.Add(column);