winform DataGridView中设置CheckBox全选和取消全选

1、winform DataGridView控件中添加复选框列，设置复选框全选的代码如下：

 

          for (int i = 0; i < DataGridView1.Rows.Count; i++)
            {

                //判断复选框是否选中

                if ((DataGridView1.Rows[i].Cells[2].EditedFormattedValue.ToString().Trim()).Equals("False"))
                {

                    //设置复选框选中
                    DataGridView1.Rows[i].Cells[2].Value = "True";
                }
            }

 

2、winform DataGridView控件中添加复选框列，设置复选框取消全选的代码如下：

 

          for (int i = 0; i < DataGridView1.Rows.Count; i++)
            {

                //判断复选框是否选中

                if ((DataGridView1.Rows[i].Cells[2].EditedFormattedValue.ToString().Trim()).Equals("True"))
                {

                    //设置取消复选框的选中状态
                    DataGridView1.Rows[i].Cells[2].Value = "False";
                }
            }