void cell_OnCheckBox2Clicked(object sender, DataGridviewCheckboxHeaderEventHander e)
{
foreach (DataGridViewRow row in this.dataGridView1.Rows)
{
if (e.CheckedState)
{
row.Cells[0].Value = true;
}
else
{
row.Cells[0].Value = false;
}
}
}
/// <summary>
/// 响应点击列头checkbox单击事件
/// </summary>
protected override void OnMouseClick(DataGridViewCellMouseEventArgs e)
{
Point p = new Point(e.X + cellLocation.X, e.Y + cellLocation.Y);
if (p.X >= checkBoxLocation.X && p.X <= checkBoxLocation.X + checkBoxSize.Width && p.Y >= checkBoxLocation.Y && p.Y <= checkBoxLocation.Y + checkBoxSize.Height)
{
isChecked = !isChecked;
//获取列头checkbox的选择状态
DataGridviewCheckboxHeaderEventHander ex = new DataGridviewCheckboxHeaderEventHander();
ex.CheckedState = isChecked;
//此处不代表选择的列头checkbox，只是作为参数传递。应该列头checkbox是绘制出来的，无法获得它的实例
object sender = new object();
if (OnCheckBoxClicked != null)
{
//触发单击事件
OnCheckBoxClicked(sender, ex);
this.DataGridView.InvalidateCell(this);
}
}
base.OnMouseClick(e);
}
