ExportToExcel生成自定义列如何做？如何避免导出身份证号为数字？

2014-06-10 03:21:17 546 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

Excel VBA+Access搭建人事管理系统：员工档案录入查询一步到位在桌面办公环境中，Excel 是最普及的数据处理工具，而 Access 则提供了轻量级的关系型数据库能力。通过 Excel VBA 中的 ADODB 组件，可以将两者无缝连接，构建一套无需专业开发环境的企业人事信息管理系统。其核心原理是利用 VBA 编写 SQL 语句，经由 OLE DB 驱动访问 Access 数据库，实现员工档案的增删改查、按部门筛选、批量数据导入导出等功能。这种“界面+逻辑+数据”三层架构，既保留了 Excel 的操作便捷性，又借助 Access 获得更强的数据组织与查询能力，非常适合阅读详情

使用ExportToExcel函数，附后，
调用如下：
BLL.farmers bll = new BLL.farmers();
DataSet ds = bll.GetListForExcel(txtSQL.Text.ToString().Trim());
IList dList = ds.Tables[0].DefaultView;
string nl = DateTime.Now.ToString();
ExportHelper.ExportToExcel(dList, new string[] { "name", "sex", "birth", "idcard", "scores", "evaluate"}, new string[] { "姓名", "性别", "出生日期", "身份证号", "得分", "评价“ }, "综合查询结果");

需求一：还想生成一列为年龄，通过出生日期计算出来的，如何做啊？好像这个函数只支持生成已有数据库字段的？
需求二：导出身份证一列为数字型，例如3.40421E+17，
如何导出字符型？

public class ExportHelper
{

public static void ExportToExcel(IList dataList, string[] fields, string[] headTexts, string title)
{
GridView gvw = new GridView();
int ColCount, i;

//如果筛选的字段和对应的列头名称个数相对的情况下只导出指定的字段
if (fields.Length != 0 && fields.Length == headTexts.Length)
{
ColCount = fields.Length;
gvw.AutoGenerateColumns = false;

for (i = 0; i < ColCount; i++)
{
BoundField bf = new BoundField();
bf.DataField = fields[i];
bf.HeaderText = headTexts[i];
gvw.Columns.Add(bf);
}
}
else
{
gvw.AutoGenerateColumns = true;
}

SetStype(gvw);
gvw.DataSource = dataList;
gvw.DataBind();

ExportToExcel(gvw, title);
}
/// <summary>
/// 导出数据到Excel
/// </summary>
/// <param name="DataList">IList Data</param>
/// <param name="Fields">要导出的字段</param>
/// <param name="HeadName">字段对应显示的名称</param>
public static void ExportToExcel(IList dataList, string[] fields, string[] headTexts)
{
ExportToExcel(dataList, fields, headTexts, string.Empty);
}

/// <summary>
/// 设置样式
/// </summary>
/// <param name="gvw"></param>
private static void SetStype(GridView gvw)
{
gvw.Font.Name = "Verdana";
gvw.BorderStyle = System.Web.UI.WebControls.BorderStyle.Solid;
gvw.HeaderStyle.BackColor = System.Drawing.Color.LightCyan;
gvw.HeaderStyle.ForeColor = System.Drawing.Color.Black;
gvw.HeaderStyle.HorizontalAlign = System.Web.UI.WebControls.HorizontalAlign.Center;
gvw.HeaderStyle.Wrap = false;
gvw.HeaderStyle.Font.Bold = false;
gvw.HeaderStyle.Font.Size = 15;
gvw.RowStyle.Font.Size = 12;
gvw.RowStyle.HorizontalAlign = System.Web.UI.WebControls.HorizontalAlign.Center;
}
/// <summary>
/// 导出GridView中的数据到Excel
/// </summary>
/// <param name="gvw"></param>
/// <param name="DataList"></param>
private static void ExportToExcel(GridView gvw, string title)
{
string fileName;
HttpContext.Current.Response.Buffer = true;
HttpContext.Current.Response.ClearContent();
HttpContext.Current.Response.ClearHeaders();
HttpContext.Current.Response.Charset = "GB2312";
// HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.UTF8;
fileName = string.Format("{0:yyyy-MM-dd_HH_mm_ss}.xls", DateTime.Now);
HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + fileName);
HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");
HttpContext.Current.Response.ContentType = "application/vnd.ms-excel";
StringWriter tw = new System.IO.StringWriter();
HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter(tw);
gvw.RenderControl(hw);
if (!string.IsNullOrEmpty(title))
{
HttpContext.Current.Response.Write("<b><center><font size=5 face=Verdana color=#000>" + title + "</font></center></b>");
}
HttpContext.Current.Response.Write(tw.ToString());
HttpContext.Current.Response.Flush();
HttpContext.Current.Response.Close();
HttpContext.Current.Response.End();

gvw.Dispose();
tw.Dispose();
hw.Dispose();

gvw = null;
tw = null;
hw = null;

}

}

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