DataGrid(WinForm)显示行号最简单的方法-.NET教程,数据库应用

同样是重载onpaint 方法,但是方法应该是比较巧妙的!而且不用担心标题是不是有显示,也不用去计算坐标,很方便的说!

protected override void onpaint(painteventargs e)

{

base.onpaint(e);

if(this.datasource!=null)

{

if( this.visiblerowcount == 0 )return;

rectangle currrct;

int irowcount = this.visiblerowcount;

string stext = "";

int nowy = 0;

for( int i = 0 ; i < irowcount ; i++ )

{

currrct = (rectangle)this.getcellbounds( i, 0 );

nowy = currrct.y + 2;

stext = string.format( " {0}", i+1 );

e.graphics.drawstring( stext, this.font, new solidbrush(color.black), 10, nowy );

}

}

}