实现easyui的datagrid导出为excel的示例代码

时间:2020-05-15 人气:0

之前有介绍过如何实现easyui里datagrid内容的打印，今天给大家介绍下如何实现datagrid内容导出为excel文件。以下为代码实现：

export.js

function ChangeToTable(printDatagrid) {
  var tableString = '<table cellspacing="0" class="pb">';
  var frozenColumns = printDatagrid.datagrid("options").frozenColumns; // 得到frozenColumns对象
  var columns = printDatagrid.datagrid("options").columns;  // 得到columns对象
  var nameList = new Array();

  // 载入title
  if (typeof columns != 'undefined' && columns != '') {
    $(columns).each(function (index) {
      tableString += '\n<tr>';
      if (typeof frozenColumns != 'undefined' && typeof frozenColumns[index] != 'undefined') {
        for (var i = 0; i < frozenColumns[index].length; ++i) {
          if (!frozenColumns[index][i].hidden) {
            tableString += '\n<th width="' + frozenColumns[index][i].width + '"';
            if (typeof frozenColumns[index][i].rowspan != 'undefined' && frozenColumns[index][i].rowspan > 1) {
              tableString += ' rowspan="' + frozenColumns[index][i].rowspan + '"';
            }
            if (typeof frozenColumns[index][i].colspan != 'undefined' && frozenColumns[index][i].colspan > 1) {
              tableString += ' colspan="' + frozenColumns[index][i].colspan + '"';
            }
            if (typeof frozenColumns[index][i].field != 'undefined' && frozenColumns[index][i].field != '') {
              nameList.push(frozenColumns[index][i]);
            }
            tableString += '>' + frozenColumns[0][i].title + '</th>';
          }
        }
      }
      for (var i = 0; i < columns[index].length; ++i) {
        if (!columns[index][i].hidden) {
          tableString += '\n<th width="' + columns[index][i].width + '"';
          if (typeof columns[index][i].rowspan != 'undefined' && columns[index][i].rowspan > 1) {
            tableString += ' rowspan="' + columns[index][i].rowspan + '"';
          }
          if (typeof columns[index][i].colspan != 'undefined' && columns[index][i].colspan > 1) {
            tableString += ' colspan="' + columns[index][i].colspan + '"';
          }
          if (typeof columns[index][i].field != 'undefined' && columns[index][i].field != '') {
            nameList.push(columns[index][i]);
          }
          tableString += '>' + columns[index][i].title + '</th>';
        }
      }
      tableString += '\n</tr>';
    });
  }
  // 载入内容
  var rows = printDatagrid.datagrid("getRows"); // 这段代码是获取当前页的所有行
  for (var i = 0; i < rows.length; ++i) {
    tableString += '\n<tr>';
    for (var j = 0; j < nameList.length; ++j) {
      var e = nameList[j].field.lastIndexOf('_0');

      tableString += '\n<td';
      if (nameList[j].align != 'undefined' && nameList[j].align != '') {
        tableString += ' style="text-align:' + nameList[j].align + ';"';
      }
      tableString += '>';
      if (e + 2 == nameList[j].field.length) {
        tableString += rows[i][nameList[j].field.substring(0, e)];
      }
      else
        tableString += rows[i][nameList[j].field];
      tableString += '</td>';
    }
    tableString += '\n</tr>';
  }
  tableString += '\n</table>';
  return tableString;
}

function Export(strXlsName, exportGrid) {
  var f = $('<form action="/export.aspx" method="post" id="fm1"></form>');
  var i = $('<input type="hidden" id="txtContent" name="txtContent" />');
  var l = $('<input type="hidden" id="txtName" name="txtName" />');
  i.val(ChangeToTable(exportGrid));
  i.appendTo(f);
  l.val(strXlsName);
  l.appendTo(f);
  f.appendTo(document.body).submit();
  document.body.removeChild(f);
}

export.aspx

protected void Page_Load(object sender, EventArgs e)
    {
      Response.Clear();
      Response.Buffer = true;
      Response.Charset = "utf-8";
      Response.ContentEncoding = System.Text.Encoding.UTF8;
      Response.AppendHeader("content-disposition", "attachment;filename=\"" + HttpUtility.HtmlEncode(Request["txtName"]??DateTime.Now.ToString("yyyyMMdd")) + ".xls\"");
      Response.ContentType = "Application/ms-excel";
      Response.Write("<html>\n<head>\n");
      Response.Write("<style type=\"text/css\">\n.pb{font-size:13px;border-collapse:collapse;} "+
              "\n.pb th{font-weight:bold;text-align:center;border:0.5pt solid windowtext;padding:2px;} " +
              "\n.pb td{border:0.5pt solid windowtext;padding:2px;}\n</style>\n</head>\n");
      Response.Write("<body>\n" + Request["txtContent"] + "\n</body>\n</html>");
      Response.Flush();
      Response.End(); 
    }

其中export.aspx为了防止前台页面内容干扰，前台页面只留：

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="export.aspx.cs" Inherits="newland.WebUI.export" ValidateRequest="false" %>

这句话，其他的全部删除。

调用方法：

<a href="javascript:void(0);" onclick="Export('导出excel', $('#grid'));">导出</a>

以上就是小编为大家带来的实现easyui的datagrid导出为excel的示例代码全部内容了，希望大家多多支持~

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