C#打印datatable
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#region Members //成员
public String printName = String.Empty;
public Font prtTextFont = new Font("Verdana", 10);
public Font prtTitleFont = new Font("宋体", 10);
private String[] titles = new String[0];
public String[] Titles
{
set
{
titles = value as String[];
if (null == titles)
{
titles = new String[0];
}
}
get
{
return titles;
}
}
private Int32 left = 20;
private Int32 top = 100;
public Int32 Top { set { top = value; } get { return top; } }
public Int32 Left { set { left = value; } get { return left; } }
private DataTable printedTable;
private Int32 pheight;
private Int32 pWidth;
private Int32 pindex;
private Int32 curdgi;
private Int32[] width;
private Int32 rowOfDownDistance = 3;
private Int32 rowOfUpDistance = 2;
Int32 startColumnControls = 0;
Int32 endColumnControls = 0;
#endregion
#region Method for PrintDataTable //打印数据集
/// <summary>
/// 打印数据集
/// </summary>
/// <param name="table">数据集</param>
/// <returns></returns>
public Boolean PrintDataTable(DataTable table)
{
PrintDocument prtDocument = new PrintDocument();
try
{
if (printName != String.Empty)
{
prtDocument.PrinterSettings.PrinterName = printName;
}
prtDocument.DefaultPageSettings.Landscape = false;
prtDocument.OriginAtMargins = false;
//PrintDialog prtDialog = new PrintDialog();
//prtDialog.AllowSomePages = true;
//prtDialog.ShowHelp = false;
//prtDialog.Document = prtDocument;
printedTable = table;
pindex = 0;
curdgi = 0;
width = new Int32[printedTable.Columns.Count];
pheight = prtDocument.PrinterSettings.DefaultPageSettings.Bounds.Bottom + 400;
//pheight = prtDocument.PrinterSettings.DefaultPageSettings.Bounds.Bottom;
pWidth = prtDocument.PrinterSettings.DefaultPageSettings.Bounds.Right;
prtDocument.PrintPage += new PrintPageEventHandler(docToPrint_PrintPage);
prtDocument.Print();
}
catch (InvalidPrinterException ex)
{
MessageBox.Show("没有安装打印机");
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
prtDocument.Dispose();
return true;
}
#endregion
#region Handler for docToPrint_PrintPage //设置打印机开始打印的事件处理函数
/// <summary>
/// 设置打印机开始打印的事件处理函数
/// </summary>
/// <param name="sender"></param>
/// <param name="ev"></param>
private void docToPrint_PrintPage(object sender,System.Drawing.Printing.PrintPageEventArgs ev)//设置打印机开始打印的事件处理函数
{
StringFormat sf = new StringFormat();
sf.Alignment = StringAlignment.Center;//居中打印
ev.Graphics.DrawString("欢迎!", new Font("宋体", 15), Brushes.Black, new Point(ev.PageBounds.Width / 2, 20), sf);//打印标题
Int32 x = left;
Int32 y = top;
Int32 rowOfTop = top;
Int32 i;
Pen pen = new Pen(Brushes.Black, 1);
if (0 == pindex)
{
for (i = 0; i < titles.Length; i++)
{
ev.Graphics.DrawString(titles[i], prtTitleFont, Brushes.Black, left, y + rowOfUpDistance);
y += prtTextFont.Height + rowOfDownDistance;
}
rowOfTop = y;
foreach (DataRow dr in printedTable.Rows)
{
for (i = 0; i < printedTable.Columns.Count; i++)
{
Int32 colwidth = Convert.ToInt16(ev.Graphics.MeasureString(dr[i].ToString().Trim(), prtTextFont).Width);
if (colwidth > width[i])
{
width[i] = colwidth;
}
}
}
}
for (i = endColumnControls; i < printedTable.Columns.Count; i++)
{
String headtext = printedTable.Columns[i].ColumnName.Trim();
if (pindex == 0)
{
int colwidth = Convert.ToInt16(ev.Graphics.MeasureString(headtext, prtTextFont).Width);
if (colwidth > width[i])
{
width[i] = colwidth;
}
}
//判断宽是否越界
if (x + width[i] > pheight)
{
break;
}
ev.Graphics.DrawString(headtext, prtTextFont, Brushes.Black, x, y + rowOfUpDistance);
x += width[i];
}
startColumnControls = endColumnControls;
if (i < printedTable.Columns.Count)
{
endColumnControls = i;
ev.HasMorePages = true;
}
else
{
endColumnControls = printedTable.Columns.Count;
}
ev.Graphics.DrawLine(pen, left, rowOfTop, x, rowOfTop);
y += rowOfUpDistance + prtTextFont.Height + rowOfDownDistance;
ev.Graphics.DrawLine(pen, left, y, x, y);
//打印数据
for (i = curdgi; i < printedTable.Rows.Count; i++)
{
x = left;
for (Int32 j = startColumnControls; j < endColumnControls; j++)
{
ev.Graphics.DrawString(printedTable.Rows[i][j].ToString().Trim(), prtTextFont, Brushes.Black, x, y + rowOfUpDistance);
x += width[j];
}
y += rowOfUpDistance + prtTextFont.Height + rowOfDownDistance;
ev.Graphics.DrawLine(pen, left, y, x, y);
//判断高是否越界
if (y > pWidth - prtTextFont.Height - 400) //if (y > pWidth - prtTextFont.Height - 30)
{
break;
}
}
ev.Graphics.DrawLine(pen, left, rowOfTop, left, y);
x = left;
for (Int32 k = startColumnControls; k < endColumnControls; k++)
{
x += width[k];
ev.Graphics.DrawLine(pen, x, rowOfTop, x, y);
}
//判断高是否越界
if (y > pWidth - prtTextFont.Height - 400) //if (y > pWidth - prtTextFont.Height - 30)
{
pindex++; if (0 == startColumnControls)
{
curdgi = i + 1;
}
if (!ev.HasMorePages)
{
endColumnControls = 0;
}
ev.HasMorePages = true;
}
}
#endregion
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