所以我正在编写代码，以使用基于C＃表单的控件PRINT DOCUMENT打印报告。我面临的问题是第一次打印完美，但是如果我要再查询一次，代码在e.DrawImage行会出错。但是，如果我关闭我的应用程序并重新开始，它将为我提供完美的第一张照片。如何克服这个问题？
private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
{
//Start
Image image = Resources.Final_without_lines;
e.Graphics.DrawImage(image, 10, 0, 200, 200);
e.Graphics.DrawString("Printed Date: " + DateTime.Now, new Font("Arial", 12, FontStyle.Regular), Brushes.Black, new Point(540, 10));
//e.Graphics.DrawString("" + this.comboBox1.Text.Trim(), new Font("Arial", 18, FontStyle.Bold), Brushes.DarkBlue, new Point(320, 30));
e.Graphics.DrawString("Sales Report", new Font("Arial", 14, FontStyle.Bold), Brushes.SeaGreen, new Point(360, 180));
e.Graphics.DrawString("----------------------------------------------------------------------------------------------------------------------------------------------------------------------------", new Font("Arial", 12, FontStyle.Bold), Brushes.Black, new Point(0, 200));
e.Graphics.DrawString("Date From : " + theDateCustom + " to " + theDate2Custom, new Font("Arial", 14, FontStyle.Regular), Brushes.Black, new Point(270, 220));
e.Graphics.DrawString("----------------------------------------------------------------------------------------------------------------------------------------------------------------------------", new Font("Arial", 12, FontStyle.Bold), Brushes.Black, new Point(0, 245));
e.Graphics.DrawString("S.No", new Font("Arial", 12, FontStyle.Bold), Brushes.Black, new Point(10, 270));
e.Graphics.DrawString("Date", new Font("Arial", 12, FontStyle.Bold), Brushes.Black, new Point(140, 270));
e.Graphics.DrawString("Bill No", new Font("Arial", 12, FontStyle.Bold), Brushes.Black, new Point(400, 270));
e.Graphics.DrawString("Amount", new Font("Arial", 12, FontStyle.Bold), Brushes.Black, new Point(600, 270));
e.Graphics.DrawString("----------------------------------------------------------------------------------------------------------------------------------------------------------------------------", new Font("Arial", 12, FontStyle.Bold), Brushes.Black, new Point(0, 300));
int j = 335;
int c = 250;
while (totalnumber < dataGridView1.RowCount - 1)
{
e.Graphics.DrawString(counter.ToString(), new Font("Arial", 12, FontStyle.Bold), Brushes.Black, new Point(10, j));
DateTime Received;
DateTime.TryParse(dataGridView1.Rows[i].Cells[1].Value.ToString(), out Received);
e.Graphics.DrawString(Received.ToString("d"), new Font("Arial", 12, FontStyle.Bold), Brushes.Black, new Point(140, j));
e.Graphics.DrawString(dataGridView1.Rows[i].Cells[2].Value.ToString(), new Font("Arial", 12, FontStyle.Bold), Brushes.Black, new Point(400, j));
e.Graphics.DrawString(dataGridView1.Rows[i].Cells[3].Value.ToString(), new Font("Arial", 12, FontStyle.Bold), Brushes.Black, new Point(600, j));
//e.Graphics.DrawString(dataGridView1.Rows[i].Cells[4].Value.ToString(), new Font("Arial", 12, FontStyle.Bold), Brushes.Black, new Point(760, j));
j = j + 30;
i++;
counter++;
totalnumber++;
if (itemperpage < 24) // check whether the number of item(per page) is more than 20 or not
{
itemperpage += 1; // increment itemperpage by 1
e.HasMorePages = false; // set the HasMorePages property to false , so that no other page will not be added
}
else // if the number of item(per page) is more than 20 then add one page
{
itemperpage = 0; //initiate itemperpage to 0 .
e.HasMorePages = true; //e.HasMorePages raised the PrintPage event once per page .
return;//It will call PrintPage event again
}
}
//e.HasMorePages = false;
e.Graphics.DrawString("----------------------------------------------------------------------------------------------------------------------------------------------------------------------------", new Font("Arial", 12, FontStyle.Bold), Brushes.Black, new Point(0, j));
//e.Graphics.DrawString("Total Amount : Rs " + pro.ToString(), new Font("Arial", 12, FontStyle.Bold), Brushes.Black, new Point(550, j + 30));
Pen pen = new Pen(Color.Maroon, 2);
//total amount box
e.Graphics.DrawRectangle(pen, 590, j + 30, 150, 45);//debit box
e.Graphics.DrawString(pro.ToString(), new Font("Times New Roman", 20, FontStyle.Bold), Brushes.SeaGreen, new Rectangle(610, j + 35, 75, 40));
e.Graphics.DrawString("Powered By :Khawaja Tech", new Font("Arial", 12, FontStyle.Bold), Brushes.DarkBlue, new Point(280, j + 100));
e.Graphics.DrawString("0334-5521065,0312-9081883", new Font("Arial", 12, FontStyle.Bold), Brushes.DarkBlue, new Point(280, j + 130));
//Here
}
在datagridview中获取数据的函数
public void fake()
{
try
{
Connectivity s = new Connectivity();
//SqlConnection con = new SqlConnection(con1);
SqlCommand sql = s.sqlCon.CreateCommand();
//MySqlCommand sql = a.CreateCommand();
sql.CommandText = "select * from Sale where Date between'" + theDate + "' and '" + theDate2 + "' ";
SqlDataAdapter da = new SqlDataAdapter(sql);
DataSet ds = new DataSet();
try
{
da.Fill(ds);
dataGridView1.DataSource = ds.Tables[0];
//ds.Tables[0]
}
catch (Exception ex)
{
MessageBox.Show("Unexpected Exception occured. Please try again");
}
s.sqlCon.Close();
}
catch (Exception ex1)
{
MessageBox.Show("Connection to MYSQL databasse lost");
}
for (int i = 0; i < dataGridView1.RowCount - 1; i++)
{
pro = pro + double.Parse(dataGridView1.Rows[i].Cells[3].Value.ToString());
}
}
在这里我正在调用函数
private void bunifuFlatButton1_Click(object sender, EventArgs e)
{
fake();
Print_Bill(dataGridView1);
printPreviewDialog1.Document = printDocument1;
printPreviewDialog1.ShowDialog();
}