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我是菜鸟,我是新手。前几天写程序时,应客户要求加上打印和数据导出功能,在过去从未做过类似的,就在网上搜了一搜,结果云云,方法云云。试过好多都要出错。于是乎,拿过来好几个,相比对照之下,终于弄出来了,记录下来,以后会用得着,也给予同我一样的新手借鉴。 导出功能,还是并非我最想要的(怎么能把浏览器下载那个提示框取消了,就如同保存图片一样),有高手路过,请指点一二......
************导出GridView数据************
1、页面中添加: <asp:LinkButton ID="lbtn_Excel" runat="server" OnClick="lbtn_Excel_Click"><img src="../icon/excel.jpg" height="20" align="absmiddle" border="0" />导出</asp:LinkButton>
2、后置代码,lbtn_Excel_Click方法: protected void lbtn_Excel_Click(object sender, EventArgs e) { string FileName = "MateOutList(" + DateTime.Now.ToShortDateString()+"_" +DateTime.Now.ToShortTimeString() + ").xls"; //导出Excel Response.Clear(); Response.AddHeader("content-disposition", "attachment;filename=" + FileName); Response.Charset="GB2312"; Response.ContentType="application/vnd.xls"; Response.ContentEncoding=System.Text.Encoding.GetEncoding("GB2312"); System.IO.StringWriter strW=new System.IO.StringWriter(); System.Web.UI.HtmlTextWriter htmlTW=new HtmlTextWriter(strW); //GridView去样式 System.Drawing.Color oldbackcolor = gv_Excel.HeaderStyle.BackColor; System.Drawing.Color oldforecolor = gv_Excel.HeaderStyle.ForeColor;
GridView1.RenderControl(htmlTW); Response.Write(strW.ToString()); Response.End(); }
3、切记重写 VerifyRenderingInServerForm方法
public override void VerifyRenderingInServerForm(Control control) { // Confirms that an HtmlForm control is rendered for }
4、如果LinkButton是在UpdatePanel<ContentTemplate></ContentTemplate>之间,切记在触发器中写上去<asp:PostBackTrigger ControlID="lbtn_Excel" />,如:
<Triggers> <asp:PostBackTrigger ControlID="lbtn_Excel" /> </Triggers>
*************OK,原来导出就是如此简单。
**********打印************ 1、页面添加: <asp:LinkButton ID="lbtn_Print" runat="server" OnClientClick="return PintPage();"><img src="../icon/print.jpg" height="20" align="absmiddle" border="0" />打印</asp:LinkButton>
<script language="javascript" type="text/javascript"> function PintPage() { //指向打印页面 window.showModalDialog('PrintMateOut.aspx?MainID='+ document.getElementById('hid_billid').value+'&SubID='+document.getElementById('hid_sub_id').value,'','dialogHeight:375px;dialogWidth:740px;help:0;'); }
</script>
2、打印页面,后置代码并没什么东西,前台用JavaScript处理了: <meta http-equiv="Content-Type" content="text/html; charset=gb2312"></meta> <script language="javascript" type="text/javascript">
function doPage() { layLoading.style.display = "none"; } //设置网页打印的页眉页脚为空 function PageSetup_Null() { try { var Wsh=new ActiveXObject("WScript.Shell"); HKEY_Key="header"; Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,""); HKEY_Key="footer"; Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,""); } catch(e){} } //设置网页打印的页眉页脚为默认值 function PageSetup_Default() { try { var Wsh=new ActiveXObject("WScript.Shell"); HKEY_Key="header"; Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,"&w&b页码,&p/&P"); HKEY_Key="footer"; Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,"&u&b&d"); } catch(e){} } /*打印函数 *doType 页面页脚类型 0 设置为空,1 设置为默认 */ function PrintTable(doType) //打印函数 { if(doType == '0') { PageSetup_Null(); } else { PageSetup_Default(); } document.getElementById("btn_Print").style.display = "none"; document.getElementById("btn_NoPrint").style.display = "none"; window.print(); document.getElementById("btn_Print").style.display = ""; document.getElementById("btn_NoPrint").style.display = ""; window.location.reload(); } <body> <!-------------------------要打印部分------------------------ <table> 要打印的表格 </table> -------------------------要打印部分------------------------->
<table cellpadding="0" cellspacing="0" border="0" style="width: 666px;"> <tr> <td align="right" style="height: 27px;"> <asp:Button ID="btn_Print" runat="server" Text="确认打印" OnClientClick="PrintTable('0')" Height="25px" Width="80px" /> <asp:Button ID="btn_NoPrint" runat="server" Text="取消打印" OnClientClick="JavasCript:window.close();" Height="25px" Width="80px" /> </td> </tr> </table>
</body>
*************OK,打印也就此搞定。
如果有疑问或着有改进,可给我留言,呵呵,共同探讨,共同进步。
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