【发布时间】:2016-05-22 07:51:27
【问题描述】:
我正在尝试从我父亲的业务申请中打印发票,我正在使用以下代码打印发票。
我的尝试如下:
{
int y = 470;
while (i < dataGridView1.RowCount)
{
e.Graphics.DrawString(dataGridView1.Rows[i].Cells["ProductName"].Value.ToString(), DefaultFont, Brushes.Black, new Point(35, y));
e.Graphics.DrawString(dataGridView1.Rows[i].Cells["Desc"].Value.ToString(), new Font("Arial", 15, FontStyle.Bold), Brushes.Black, new Point(250, y));
e.Graphics.DrawString(dataGridView1.Rows[i].Cells["Quantity"].Value.ToString(), new Font("Arial", 15, FontStyle.Bold), Brushes.Black, new Point(600, y));
e.Graphics.DrawString(dataGridView1.Rows[i].Cells["UnitPrice"].Value.ToString(), new Font("Arial", 15, FontStyle.Bold), Brushes.Black, new Point(650, y));
e.Graphics.DrawString(dataGridView1.Rows[i].Cells["Tax"].Value.ToString(), new Font("Arial", 15, FontStyle.Bold), Brushes.Black, new Point(700, y));
e.Graphics.DrawString(dataGridView1.Rows[i].Cells["Total"].Value.ToString(), new Font("Arial", 15, FontStyle.Bold), Brushes.Black, new Point(650, y));
y = y + 20;
if (y >= pageHeight)
{
e.HasMorePages = true;
y = 0;
i++;
return;
}
else
{
e.HasMorePages = false;
}
i++;
}
}
这里是一个全局变量
private int i = 0;
当我点击预览按钮时,我得到了预期的输出,但是当我在纸上打印它时,只有 while 循环中的内容没有打印出来。我尝试使用局部变量而不是全局变量 j,如下所示,它起作用了。
for (int j=0; j < dataGridView1.RowCount; j++)
{
e.Graphics.DrawString(dataGridView1.Rows[j].Cells["ProductName"].Value.ToString(), DefaultFont, Brushes.Black, new Point(35, y));
e.Graphics.DrawString(dataGridView1.Rows[j].Cells["Desc"].Value.ToString(), new Font("Arial", 15, FontStyle.Bold), Brushes.Black, new Point(250, y));
e.Graphics.DrawString(dataGridView1.Rows[j].Cells["Quantity"].Value.ToString(), new Font("Arial", 15, FontStyle.Bold), Brushes.Black, new Point(600, y));
e.Graphics.DrawString(dataGridView1.Rows[j].Cells["UnitPrice"].Value.ToString(), new Font("Arial", 15, FontStyle.Bold), Brushes.Black, new Point(650, y));
e.Graphics.DrawString(dataGridView1.Rows[j].Cells["Tax"].Value.ToString(), new Font("Arial", 15, FontStyle.Bold), Brushes.Black, new Point(700, y));
e.Graphics.DrawString(dataGridView1.Rows[j].Cells["Total"].Value.ToString(), new Font("Arial", 15, FontStyle.Bold), Brushes.Black, new Point(650, y));
y = y + 20;
}
但如果要包含的项目超过页面高度,我不知道如何添加新页面。请帮忙。
【问题讨论】:
-
为了避免本质上只有链接的答案,dreamincode 有一篇关于将多页打印到打印机的好文章。 MSDN 也有一个不错的例子,如果你会说微软的话。