我正在寻找将用户控件添加到datagridview单元格的技巧，并找到了以下代码。我只是复制粘贴代码，但是当我尝试添加时，CustomColumn我得到了错误。
这样我尝试将CustomColumn列添加到网格。
private void button1_Click(object sender, EventArgs e)
{
CustomColumn cc=new CustomColumn();
dataGridView1.Columns.Add(cc);
dataGridView1.Rows.Add("");
}
public class CustomColumn : DataGridViewColumn {
public CustomColumn() : base(new CustomeCell()) { }
public override DataGridViewCell CellTemplate
{
get
{
return base.CellTemplate;
}
set
{
// Ensure that the cell used for the template is a CalendarCell.
if (value != null &&
!value.GetType().IsAssignableFrom(typeof(CustomeCell)))
{
throw new InvalidCastException("It should be a custom Cell");
}
base.CellTemplate = value;
}
}
}
public class CustomeCell : DataGridViewCell
{
public CustomeCell() : base() { }
public override Type ValueType
{
get
{
return typeof(CustomUserControl);
}
}
protected override void Paint(Graphics graphics, Rectangle clipBounds, Rectangle cellBounds, int rowIndex, DataGridViewElementStates cellState, object value, object formattedValue, string errorText, DataGridViewCellStyle cellStyle, DataGridViewAdvancedBorderStyle advancedBorderStyle, DataGridViewPaintParts paintParts)
{
CustomUserControl ctrl = (CustomUserControl)value;
Bitmap img = new Bitmap(cellBounds.Width, cellBounds.Height);
ctrl.DrawToBitmap(img, new Rectangle(0, 0, ctrl.Width, ctrl.Height));
graphics.DrawImage(img, cellBounds.Location);
}
protected override void OnClick(DataGridViewCellEventArgs e)
{
List<InfoObject> objs = this.DataGridView.DataSource as List<InfoObject>;
if (objs != null)
{
if (e.RowIndex >= 0 && e.RowIndex < objs.Count) {
CustomUserControl ctrl = objs[e.RowIndex].Ctrl;
// Take any action - I will just change the color for now.
ctrl.BackColor = Color.Red;
ctrl.Refresh();
this.DataGridView.InvalidateCell(e.ColumnIndex, e.RowIndex);
}
}
}
}
请告诉我如何使用上面的代码添加自定义列。我创建了一个用户控件和名称，CustomUserControl但没有运气。谢谢