能实现如上图的的打印功能。
·所有字体，边距，header 高，行高，都可以自定义。
·支持自动计算每页行数与每页固定行数。
·支持页脚显示页数。
由于自己用和本人比较懒，所以把属性都设置成公有，赋值的时候小心。
using system;
using system.collections;
using system.componentmodel;
using system.drawing;
using system.drawing.printing;
using system.data;
using system.windows.forms;
namespace cjmanager
{
public class cuteprinter
{
private datagrid datagrid;
private printdocument printdocument;
private pagesetupdialog pagesetupdialog;
private printpreviewdialog printpreviewdialog;
private string title="";
int currentpageindex=0;
int rowcount=0;
int pagecount=0;
int titlesize=16;
bool iscustomheader=false;
//brush alertbrush=new solidbrush(color.red);
string[] header=null;//如果自定义就填入字符串，如果需要斜线分隔，就用/表示，例如：个数#名字 其中#为splitchar
string[] uplineheader=null;//上行文字数组
int[] uplineheaderindex=null;//上行的文字index,如果没有上行就设为-1；
//bool iseverypageprinthead=true;//是否每一页都要打印列头。
public bool iseverypageprinttitle=false;//是否每一页都要打印标题。
public int headerheight=50;//标题高度。
public int topmargin=60; //顶边距
public int celltopmargin=6;//单元格顶边距
public int cellleftmargin=4;//单元格左边距
public char splitchar='#';//当header要用斜线表示的时候
public string falsestr="×";//如果传进来的datagrid中有 false,把其转换得字符。
public string truestr="√";//如果传进来的datagrid中有 true,把其转换得字符。
public int pagerowcount=7;//每页行数
public int rowgap = 30;//行高
public int colgap = 5;//每列间隔
public int leftmargin = 50;//左边距
public font titlefont=new font("arial",14);//标题字体
public font font = new font("arial", 10);//正文字体
public font headerfont = new font("arial", 9, fontstyle.bold);//列名标题
public font footerfont=new font("arial",8);//页脚显示页数的字体
public font uplinefont=new font("arial",9, fontstyle.bold);//当header分两行显示的时候，上行显示的字体。
public font underlinefont=new font("arial",8);//当header分两行显示的时候，下行显示的字体。
public brush brush = new solidbrush(color.black);//画刷
public bool isautopagerowcount=true;//是否自动计算行数。
public int buttommargin=80;//底边距
public bool needprintpageindex=true;//是否打印页脚页数
//string filterstr="";
public cuteprinter(datagrid datagrid,string title,int titlesize)
{
this.title=title;
//this.titlesize=titlesize;
this.datagrid = datagrid;
printdocument = new printdocument();
printdocument.printpage += new printpageeventhandler(this.printdocument_printpage);
}
public cuteprinter(datagrid datagrid,string title)
{
this.title=title;
this.datagrid = datagrid;
printdocument = new printdocument();
printdocument.printpage += new printpageeventhandler(this.printdocument_printpage);
}
public cuteprinter(datagrid datagrid)
{
this.datagrid = datagrid;
printdocument = new printdocument();
printdocument.printpage += new printpageeventhandler(this.printdocument_printpage);
}
public bool settowlineheader(string[] uplineheader,int[] uplineheaderindex)
{
this.uplineheader=uplineheader;
this.uplineheaderindex=uplineheaderindex;
this.iscustomheader=true;
return true;
}
public bool setheader(string[] header)
{
this.header=header;
return true;
}
private void printdocument_printpage(object sender, system.drawing.printing.printpageeventargs e)
{
int width=e.pagebounds.width;
int height=e.pagebounds.height;
if(this.isautopagerowcount)
pagerowcount=(int)((height-this.topmargin-titlesize-this.headerfont.height-this.headerheight-this.buttommargin)/this.rowgap);
pagecount=(int)(rowcount/pagerowcount);
if(rowcount%pagerowcount>0)
pagecount++;
int xoffset=(int)((width-e.graphics.measurestring(this.title,this.titlefont).width)/2);
int colcount = 0;
int x = 0;
int y =topmargin;
string cellvalue = "";
int startrow=currentpageindex*pagerowcount;
int endrow=startrow+this.pagerowcount<rowcount?startrow+pagerowcount:rowcount;
int currentpagerowcount=endrow-startrow;
if(this.currentpageindex==0 || this.iseverypageprinttitle)
{
e.graphics.drawstring(this.title,titlefont,brush,xoffset,y);
y+=titlesize;
}
colcount = datagrid.tablestyles[0].gridcolumnstyles.count;
y += rowgap;
x = leftmargin;
drawline(new point(x,y),new point(x,y+currentpagerowcount*rowgap+this.headerheight),e.graphics);//最左边的竖线
int lastindex=-1;
int lastlength=0;
int indexj=-1;
for(int j = 0; j < colcount; j++)
{
int colwidth=datagrid.tablestyles[0].gridcolumnstyles[j].width;
if( colwidth> 0)
{
indexj++;
if(this.header==null || this.header[indexj]=="")
cellvalue = datagrid.tablestyles[0].gridcolumnstyles[j].headertext;
else
cellvalue=header[indexj];
if(this.iscustomheader)
{
if(this.uplineheaderindex[indexj]!=lastindex)
{
if(lastlength>0 && lastindex>-1)//开始画上一个upline
{
string uplinestr=this.uplineheader[lastindex];
int upxoffset=(int)((lastlength-e.graphics.measurestring(uplinestr,this.uplinefont).width)/2);
if(upxoffset<0)
upxoffset=0;
e.graphics.drawstring(uplinestr,this.uplinefont,brush,x-lastlength+upxoffset,y+(int)(this.celltopmargin/2));
drawline(new point(x-lastlength,y+(int)(this.headerheight/2)),new point(x,y+(int)(this.headerheight/2)),e.graphics);//中线
drawline(new point(x,y),new point(x,y+(int)(this.headerheight/2)),e.graphics);
}
lastindex=this.uplineheaderindex[indexj];
lastlength=colwidth+colgap;
}
else
{
lastlength+=colwidth+colgap;
}
}
//int currenty=y+celltopmargin;
int xoffset=10;
int yoffset=20;
int leftwordindex=cellvalue.indexof(this.splitchar);
if(this.uplineheaderindex!=null && this.uplineheaderindex[indexj]>-1)
{
if(leftwordindex>0)
{
string leftword=cellvalue.substring(0,leftwordindex);
string rightword=cellvalue.substring(leftwordindex+1,cellvalue.length-leftwordindex-1);
//上面的字
xoffset=(int)(colwidth+colgap-e.graphics.measurestring(rightword,this.uplinefont).width);
yoffset=(int)(this.headerheight/2-e.graphics.measurestring("a",this.underlinefont).height);
//xoffset=6;
//yoffset=10;
e.graphics.drawstring(rightword,this.underlinefont,brush,x+xoffset-4,y+(int)(this.headerheight/2));
e.graphics.drawstring(leftword,this.underlinefont,brush,x+2,y+(int)(this.headerheight/2)+(int)(this.celltopmargin/2)+yoffset-2);
drawline(new point(x,y+(int)(this.headerheight/2)),new point(x+colwidth+colgap,y+headerheight),e.graphics);
x += colwidth + colgap;
drawline(new point(x,y+(int)(this.headerheight/2)),new point(x,y+currentpagerowcount*rowgap+this.headerheight),e.graphics);
}
else
{
e.graphics.drawstring(cellvalue, headerfont, brush, x, y+(int)(this.headerheight/2)+(int)(this.celltopmargin/2));
x += colwidth + colgap;
drawline(new point(x,y+(int)(this.headerheight/2)),new point(x,y+currentpagerowcount*rowgap+this.headerheight),e.graphics);
}
}
else
{
if(leftwordindex>0)
{
string leftword=cellvalue.substring(0,leftwordindex);
string rightword=cellvalue.substring(leftwordindex+1,cellvalue.length-leftwordindex-1);
//上面的字
xoffset=(int)(colwidth+colgap-e.graphics.measurestring(rightword,this.uplinefont).width);
yoffset=(int)(this.headerheight-e.graphics.measurestring("a",this.underlinefont).height);
e.graphics.drawstring(rightword,this.headerfont,brush,x+xoffset-4,y+2);
e.graphics.drawstring(leftword,this.headerfont,brush,x+2,y+yoffset-4);
drawline(new point(x,y),new point(x+colwidth+colgap,y+headerheight),e.graphics);
x += colwidth + colgap;
drawline(new point(x,y),new point(x,y+currentpagerowcount*rowgap+this.headerheight),e.graphics);
}
else
{
e.graphics.drawstring(cellvalue, headerfont, brush, x, y+celltopmargin);
x += colwidth + colgap;
drawline(new point(x,y),new point(x,y+currentpagerowcount*rowgap+this.headerheight),e.graphics);
}
}
}
}
////循环结束，画最后一个的upline
if(this.iscustomheader)
{
if(lastlength>0 && lastindex>-1)//开始画上一个upline
{
string uplinestr=this.uplineheader[lastindex];
int upxoffset=(int)((lastlength-e.graphics.measurestring(uplinestr,this.uplinefont).width)/2);
if(upxoffset<0)
upxoffset=0;
e.graphics.drawstring(uplinestr,this.uplinefont,brush,x-lastlength+upxoffset,y+(int)(this.celltopmargin/2));
drawline(new point(x-lastlength,y+(int)(this.headerheight/2)),new point(x,y+(int)(this.headerheight/2)),e.graphics);//中线
drawline(new point(x,y),new point(x,y+(int)(this.headerheight/2)),e.graphics);
}
}
int rightbound=x;
drawline(new point(leftmargin,y),new point(rightbound,y),e.graphics); //最上面的线
//drawline(new point(leftmargin,y+this.headerheight),new point(rightbound,y+this.headerheight),e.graphics);//列名的下面的线
y+=this.headerheight;
//print all rows
for(int i = startrow; i < endrow; i++)
{
x = leftmargin;
for(int j = 0; j < colcount; j++)
{
if(datagrid.tablestyles[0].gridcolumnstyles[j].width > 0)
{
cellvalue = datagrid[i,j].tostring();
if(cellvalue=="false")
cellvalue=falsestr;
if(cellvalue=="true")
cellvalue=truestr;
e.graphics.drawstring(cellvalue, font, brush, x+this.cellleftmargin, y+celltopmargin);
x += datagrid.tablestyles[0].gridcolumnstyles[j].width + colgap;
y = y + rowgap * (cellvalue.split(new char[] {'/r', '/n'}).length - 1);
}
}
drawline(new point(leftmargin,y),new point(rightbound,y),e.graphics);
y += rowgap;
}
drawline(new point(leftmargin,y),new point(rightbound,y),e.graphics);
currentpageindex++;
if(this.needprintpageindex)
e.graphics.drawstring("共 "+pagecount.tostring()+" 页,当前第 "+this.currentpageindex.tostring()+" 页",this.footerfont,brush,width-200,(int)(height-this.buttommargin/2-this.footerfont.height));
string s = cellvalue;
string f3 = cellvalue;
if(currentpageindex<pagecount)
{
e.hasmorepages=true;
}
else
{
e.hasmorepages=false;
this.currentpageindex=0;
}
//ipagenumber+=1;
}
private void drawline(point sp,point ep,graphics gp)
{
pen pen=new pen(color.black);
gp.drawline(pen,sp,ep);
}
public printdocument getprintdocument()
{
return printdocument;
}
public void print()
{
rowcount=0;
if(datagrid.datasource.gettype().tostring() == "system.data.datatable")
{
rowcount = ((datatable)datagrid.datasource).rows.count;
}
else if(datagrid.datasource.gettype().tostring() == "system.collections.arraylist")
{
rowcount = ((arraylist)datagrid.datasource).count;
}
try
{
pagesetupdialog = new pagesetupdialog();
pagesetupdialog.document = printdocument;
pagesetupdialog.showdialog();
printpreviewdialog = new printpreviewdialog();
printpreviewdialog.document = printdocument;
printpreviewdialog.height = 600;
printpreviewdialog.width = 800;
printpreviewdialog.showdialog();
}
catch(exception e)
{
throw new exception("printer error." + e.message);
}
}
}
}
//用法示例，显示结果如顶图。
private void bnprint_click(object sender, system.eventargs e)
{
cuteprinter dgp=new cuteprinter(this.datagrid1,this.dlsearchyear.text+"年"+"专业",16);
string[] uplinestr={"呵呵,hehe","xixi"};
string[] header={"呵呵#xixi","hee#xcc","kdfj#djjj","kk#jj","kdjf","","","",""};
dgp.setheader(header);//如果不用改原header就不用赋值。
//注意，这里的列不包括width==0的列
int[] uplineindex={-1,-1,0,0,0,-1,1,1};//注意，这里的列不包括width==0的列
dgp.settowlineheader(uplinestr,uplineindex);
dgp.print();
}
