我要评论主窗体代码如下:
public partial class printfileform : form
{
public printfileform()
{
initializecomponent();
printfile prinfile = new printfile();
prinfile.print();
}
}
打印文件类如下:
class printfile
{
streamreader sr = null;
font printfont = new font("宋体", 12);
public void print()
{
try
{
sr = new streamreader(@"f:\temp.txt");
try
{
printdocument printdoc = new printdocument();
printdoc.printpage += printdoc_printpage;
printdoc.print();
}
finally
{
sr.close();
}
}
catch (exception ex)
{
console.writeline(ex.message);
}
}
void printdoc_printpage(object sender, printpageeventargs e)
{
string line = null;
//设置一页的行数=打印区域的高度除以字体高度.
float pageline = e.marginbounds.height / printfont.getheight(e.graphics);
//循环打印每一行
for (int count = 0; count < pageline && ((line=sr.readline())!=null); count++)
{
float singleline=e.marginbounds.top+(count*printfont.getheight(e.graphics));
e.graphics.drawstring(line, printfont, brushes.black, e.marginbounds.left, singleline);
}
//判断是否继续打印
if (line != null)
e.hasmorepages = true;
else
e.hasmorepages = false;
}
}
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