Question

当我尝试在datagridview中选择完整行时，最后一列的单元格背景颜色不会改变。最后一个单元格具有使用单元绘制方法绘制的图像。如何在这些情况下选择Full行。

private void dgvMobileOperators_CellPainting(object sender, DataGridViewCellPaintingEventArgs e)
        {

            if (e.RowIndex >= 0 && e.ColumnIndex == 8 && dgvMobileOperators.Rows[e.RowIndex ].Cells[e.ColumnIndex+1].Value.ToString()=="1"  /*&& Convert.ToInt32(e.Value.ToString()) == 1*/)
             {
                 e.PaintBackground(e.ClipBounds, false);
                 dgvMobileOperators[e.ColumnIndex, e.RowIndex].ToolTipText = e.Value.ToString();
                 PointF p = e.CellBounds.Location;
                 // p.X += imageList1.ImageSize.Width;
                 p.X += 24;
                 // string path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, @"EasySMPP\App\Images\sms.ico");
                 string path = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location)) + "\\Images\\connect_established.png";
                 e.Graphics.DrawImage(Image.FromFile(path), e.CellBounds.X, e.CellBounds.Y, 73, 18);
                 e.Graphics.DrawString(e.Value.ToString(), e.CellStyle.Font, Brushes.Black, p);
                 e.Handled = true;
             }
            else if (e.RowIndex >= 0 && e.ColumnIndex == 8 && dgvMobileOperators.Rows[e.RowIndex].Cells[e.ColumnIndex +1].Value.ToString() == "0"/*&& Convert.ToInt32(e.Value.ToString()) == 0*/)
             {
                 e.PaintBackground(e.ClipBounds, false);
                 dgvMobileOperators[e.ColumnIndex, e.RowIndex].ToolTipText = e.Value.ToString();
                 PointF p = e.CellBounds.Location;
                 // p.X += imageList1.ImageSize.Width;
                 p.X += 24;
                 // string path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, @"EasySMPP\App\Images\sms.ico");
                 string path = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location)) + "\\Images\\connect_no.png";
                 e.Graphics.DrawImage(Image.FromFile(path), e.CellBounds.X, e.CellBounds.Y, 73, 18);
                 e.Graphics.DrawString(e.Value.ToString(), e.CellStyle.Font, Brushes.Black, p);
                 e.Handled = true;
             }



        }

Answer 1

关闭。但是这个：

 e.PaintBackground(e.ClipBounds, false);

告诉它不显示选择。

改为使用：

 e.PaintBackground(e.ClipBounds, true);

Answer 2

我能够解决问题。在我更改条件的图像后，我检查了if条件是否选择了当前行。最后添加了两个具有所选背景颜色的图像

 private void dgvMobileOperators_CellPainting(object sender, DataGridViewCellPaintingEventArgs e)
        {
            if (dgvMobileOperators.SelectedRows[0].Index != e.RowIndex)
            {
                if (e.RowIndex >= 0 && e.ColumnIndex == 8 && dgvMobileOperators.Rows[e.RowIndex].Cells[e.ColumnIndex + 1].Value.ToString() == "1"  /*&& Convert.ToInt32(e.Value.ToString()) == 1*/)
                {
                    e.PaintBackground(e.ClipBounds, false);
                    dgvMobileOperators[e.ColumnIndex, e.RowIndex].ToolTipText = e.Value.ToString();
                    PointF p = e.CellBounds.Location;
                    // p.X += imageList1.ImageSize.Width;
                    p.X += 24;
                    // string path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, @"EasySMPP\App\Images\sms.ico");
                    string path = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location)) + "\\Images\\connect_established.png";
                    e.Graphics.DrawImage(Image.FromFile(path), e.CellBounds.X, e.CellBounds.Y, 79,23);
                    e.Graphics.DrawString(e.Value.ToString(), e.CellStyle.Font, Brushes.Black, p);
                    e.Handled = true;
                }
                else if (e.RowIndex >= 0 && e.ColumnIndex == 8 && dgvMobileOperators.Rows[e.RowIndex].Cells[e.ColumnIndex + 1].Value.ToString() == "0"/*&& Convert.ToInt32(e.Value.ToString()) == 0*/)
                {
                    e.PaintBackground(e.ClipBounds, false);
                    dgvMobileOperators[e.ColumnIndex, e.RowIndex].ToolTipText = e.Value.ToString();
                    PointF p = e.CellBounds.Location;
                    // p.X += imageList1.ImageSize.Width;
                    p.X += 24;
                    // string path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, @"EasySMPP\App\Images\sms.ico");
                    string path = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location)) + "\\Images\\connect_no.png";
                    e.Graphics.DrawImage(Image.FromFile(path), e.CellBounds.X, e.CellBounds.Y, 79, 23);
                    e.Graphics.DrawString(e.Value.ToString(), e.CellStyle.Font, Brushes.Black, p);
                    e.Handled = true;
                }
            }
            else
            {
                if (e.RowIndex >= 0 && e.ColumnIndex == 8 && dgvMobileOperators.Rows[e.RowIndex].Cells[e.ColumnIndex + 1].Value.ToString() == "1"  /*&& Convert.ToInt32(e.Value.ToString()) == 1*/)
                {
                    e.PaintBackground(e.ClipBounds, false);
                    dgvMobileOperators[e.ColumnIndex, e.RowIndex].ToolTipText = e.Value.ToString();
                    PointF p = e.CellBounds.Location;
                    // p.X += imageList1.ImageSize.Width;
                    p.X += 24;
                    // string path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, @"EasySMPP\App\Images\sms.ico");
                    string path = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location)) + "\\Images\\connect-ok.png";
                    e.Graphics.DrawImage(Image.FromFile(path), e.CellBounds.X, e.CellBounds.Y, 79, 23);
                    e.Graphics.DrawString(e.Value.ToString(), e.CellStyle.Font, Brushes.Black, p);
                    e.Handled = true;
                }
                else if (e.RowIndex >= 0 && e.ColumnIndex == 8 && dgvMobileOperators.Rows[e.RowIndex].Cells[e.ColumnIndex + 1].Value.ToString() == "0"/*&& Convert.ToInt32(e.Value.ToString()) == 0*/)
                {
                    e.PaintBackground(e.ClipBounds, false);
                    dgvMobileOperators[e.ColumnIndex, e.RowIndex].ToolTipText = e.Value.ToString();
                    PointF p = e.CellBounds.Location;
                    // p.X += imageList1.ImageSize.Width;
                    p.X += 24;
                    // string path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, @"EasySMPP\App\Images\sms.ico");
                    string path = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location)) + "\\Images\\connect-fail.png";
                    e.Graphics.DrawImage(Image.FromFile(path), e.CellBounds.X, e.CellBounds.Y, 79, 23);
                    e.Graphics.DrawString(e.Value.ToString(), e.CellStyle.Font, Brushes.Black, p);
                    e.Handled = true;
                }
            }



        }

用于在datagridview单元格中绘制图像的单元素绘制事件后，整行选择无法正常工作

2 个答案: