如何只绘制数据网格视图的单元格背景而不是其内容
本文关键字:背景 单元格 绘制 数据 数据网 视图 网格 | 更新日期: 2023-09-27 17:57:02
我只需要绘制 DataGridView 单元格的背景而不是其内容。但是当我在绘画时,它也绘制了它的内容。请帮帮我。
我的代码是这样的。
private void Daywisegrid_CellPainting(object sender, DataGridViewCellPaintingEventArgs e)
{
if (e.RowIndex == 0 )
{
using (Brush gridBrush = new SolidBrush(this.Daywisegrid.GridColor))
{
using (Brush backColorBrush = new SolidBrush(e.CellStyle.BackColor))
{
using (Pen gridLinePen = new Pen(gridBrush))
{
// Clear cell
e.Graphics.FillRectangle(backColorBrush, e.CellBounds);
//Bottom line drawing
e.Graphics.DrawLine(gridLinePen, e.CellBounds.Left, e.CellBounds.Bottom-1 , e.CellBounds.Right, e.CellBounds.Bottom-1);
e.Handled = true;
}
}
}
}
我不确定为什么您需要捕获 CellPainting 事件来更改单元格背景颜色,就像这样做
Daywisegrid.Rows[RowIndex].Cells[columnIndex].Style.BackColor = Color.Red;
但是如果你想在绘画中做到这一点,试试这个
private void Daywisegrid_CellPainting(object sender, DataGridViewCellPaintingEventArgs e)
{
if (e.RowIndex == 0 )
{
using (Brush gridBrush = new SolidBrush(this.Daywisegrid.GridColor))
{
using (Brush backColorBrush = new SolidBrush(e.CellStyle.BackColor))
{
using (Pen gridLinePen = new Pen(gridBrush))
{
// Clear cell
e.Graphics.FillRectangle(backColorBrush, e.CellBounds);
//Bottom line drawing
e.Graphics.DrawLine(gridLinePen, e.CellBounds.Left, e.CellBounds.Bottom-1 , e.CellBounds.Right, e.CellBounds.Bottom-1);
// here you force paint of content
e.PaintContent( e.ClipBounds );
e.Handled = true;
}
}
}
}
应该是
e.Graphics.DrawLine(gridLinePen, e.CellBounds.Left, e.CellBounds.Bottom-1 , e.CellBounds.Right - 1, e.CellBounds.Bottom - 1);
e.CellBounds.Right, e.CellBounds.Bottom - 1
点将被下一个单元格擦除。