我正在实现事件绘制以在datagridview上的所有单元格中绘制字符串并填充矩形。
但它也在topleftheadercell上画。我如何摆脱图像??
这是我的活动画画
private void dataGridView1_Paint(object sender, PaintEventArgs e)
{
///
/// Menggambar Header Column menjadi terlihat seperti di merge cells
///
string[] monthes = (string[])myKaryawan.getKaryawan().ToArray(typeof(string));
for (int j = 0; j < myKaryawan.CountKaryawan()* 2; )
{
Image newImage = Image.FromFile(Application.StartupPath+"\\SampImag.jpg",true);
Rectangle recBackground = this.dataGridView1.GetCellDisplayRectangle(j, -1, true);
Rectangle recImage = this.dataGridView1.GetCellDisplayRectangle(j, -1, true);
Rectangle recString = this.dataGridView1.GetCellDisplayRectangle(j, -1, true);
int w2 = this.dataGridView1.GetCellDisplayRectangle(j + 1, -1, true).Width;
recBackground.X += 1;
recBackground.Y += 1;
recImage.X += 1;
recImage.Y += 1;
recString.X += (recString.Width + w2) / 2;
recString.Y += 1;
recBackground.Width = recBackground.Width + w2 - 2;
recBackground.Height = recBackground.Height / 2 - 2;
recImage.Width = (recImage.Width + w2) / 2 - 2;
recImage.Height = recImage.Height / 2 - 2;
recString.Width = (recString.Width + w2) / 2 - 2;
recString.Height = recString.Height / 2 - 2;
e.Graphics.FillRectangle(new SolidBrush(this.dataGridView1.ColumnHeadersDefaultCellStyle.BackColor), recBackground);
StringFormat format = new StringFormat();
format.Alignment = StringAlignment.Center;
format.LineAlignment = StringAlignment.Center;
e.Graphics.DrawString(monthes[j / 2],
this.dataGridView1.ColumnHeadersDefaultCellStyle.Font,
new SolidBrush(this.dataGridView1.ColumnHeadersDefaultCellStyle.ForeColor),
recString,
format);
e.Graphics.DrawImage(newImage, recImage);
j += 2;
}
///
/// Initializing variable yang akan digunakan untuk menggambar
/// Flag untuk menandakan posisi koordinat untuk looping gambar
///
string awal = dataGridView1.Rows[0].HeaderCell.Value.ToString().Substring(6).ToString();
string akhir = dataGridView1.Rows[6].HeaderCell.Value.ToString().Substring(6).ToString();
tglAwal = Convert.ToDateTime(awal);
tglAkhir = Convert.ToDateTime(akhir);
var split = new String[25];
int countRows = myActivity.getActivityPagi(tglAwal, tglAkhir).Tables[0].Rows.Count;
int countColumns = myActivity.getActivityPagi(tglAwal, tglAkhir).Tables[0].Columns.Count;
Font font1 = new Font("Arial", 10, FontStyle.Bold, GraphicsUnit.Point);
Font font2 = new Font("Arial", 8, FontStyle.Regular, GraphicsUnit.Point);
int[,] flag = new int[dataGridView1.Rows.Count, dataGridView1.Columns.Count];
int[,] flag2 = new int[dataGridView1.Rows.Count, dataGridView1.Columns.Count];
int[,] flag3 = new int[dataGridView1.Rows.Count, dataGridView1.Columns.Count];
///
/// Draw Background Colour dan Draw String
/// Pertama Looping semua isi data set kedalam string array
/// Kemudian Looping per Cell untuk menggambar Stringnya dan Fill Rectangle
///
string[,] activity = new string[myActivity.getActivityPagi(tglAwal, tglAkhir).Tables[0].Rows.Count, 6];
for (int i = 0; i < countRows; i++)
{
for (int j = 0; j < countColumns; j++)
{
activity[i, j] = myActivity.getActivityPagi(tglAwal, tglAkhir).Tables[0].Rows[i][j].ToString();
}
}
for (int i = 0; i < dataGridView1.Rows.Count; i++)
{
for (int j = 0; j < dataGridView1.Columns.Count; j++)
{
for (int k = 0; k < countRows; k++)
{
headerValue = dataGridView1.Rows[i].HeaderCell.Value.ToString();
split = headerValue.Split(',');
time = DateTime.Parse(split[1]);
if (time == Convert.ToDateTime(activity[k, 5]) && dataGridView1.Columns[j].Name == activity[k, 3] + activity[k, 4])
{
Rectangle r1 = this.dataGridView1.GetCellDisplayRectangle(j, i, true);
Rectangle r2 = this.dataGridView1.GetCellDisplayRectangle(j, i, true);
Rectangle r3 = this.dataGridView1.GetCellDisplayRectangle(j, i, true);
int w2 = this.dataGridView1.GetCellDisplayRectangle(j, i, true).Width;
r1.X += 1;
r1.Y += flag[i, j]+1;
r1.Width = 65;
r1.Height = 15;
r2.X += 1;
r2.Y += flag2[i, j]+15;
r2.Width = 65;
r2.Height = 15;
r3.X += 1;
r3.Y += flag3[i, j] + 30;
r3.Width = 70;
r3.Height = 45;
flag[i, j] = flag[i, j]+75;
flag2[i, j] = flag2[i, j] + 75;
flag3[i, j] = flag3[i, j] + 75;
if (flag3[i, j] == dataGridView1.Rows[i].MinimumHeight -2)
{
dataGridView1.Rows[i].MinimumHeight += 75;
}
StringFormat format = new StringFormat();
StringFormat format2 = new StringFormat();
format2.Alignment = StringAlignment.Near;
format2.LineAlignment = StringAlignment.Near;
format.Alignment = StringAlignment.Center;
format.LineAlignment = StringAlignment.Center;
if (coloring.getColor(activity[k, 1]) == Color.Black)
{
e.Graphics.FillRectangle(new SolidBrush(Color.White), r1);
e.Graphics.DrawString(activity[k, 0],
font1,
new SolidBrush(this.dataGridView1.ColumnHeadersDefaultCellStyle.ForeColor),
r1,
format2);
e.Graphics.FillRectangle(new SolidBrush(coloring.getColor(activity[k, 1])), r2);
e.Graphics.DrawString(activity[k, 1],
font1,
new SolidBrush(Color.White),
r2,
format);
e.Graphics.DrawString(activity[k, 2],
font2,
new SolidBrush(this.dataGridView1.ColumnHeadersDefaultCellStyle.ForeColor),
r3,
format2);
}
else
{
e.Graphics.FillRectangle(new SolidBrush(Color.White), r1);
e.Graphics.DrawString(activity[k, 0],
font1,
new SolidBrush(this.dataGridView1.ColumnHeadersDefaultCellStyle.ForeColor),
r1,
format2);
e.Graphics.FillRectangle(new SolidBrush(coloring.getColor(activity[k, 1])), r2);
e.Graphics.DrawString(activity[k, 1],
font1,
new SolidBrush(this.dataGridView1.ColumnHeadersDefaultCellStyle.ForeColor),
r2,
format);
e.Graphics.DrawString(activity[k, 2],
font2,
new SolidBrush(this.dataGridView1.ColumnHeadersDefaultCellStyle.ForeColor),
r3,
format2);
}
}
}
}
}
}
答案 0 :(得分：1)
问题解决了，我只是在事件滚动中将datagridview.Invalidate();更改为
for (int i = 0; i < dataGridView1.Columns.Count; i++)
{
this.dataGridView1.InvalidateColumn(i);
}