将多个表格视图导出到多个Excel选项卡（表格）

Question

我的网站上有6个gridview，我需要导出这些表格以使其表现出色，但是每个视图都放在一个不同的工作表中。

此链接“ 将GridView导出到多个Excel工作表”使用的方法非常相似，但他使用的是数据集，而我没有。 我是C＃的新手，所以我无法更改它以适合我的解决方案。

我的代码将所有gridviews导出到同一张工作表。 我创建了一个循环以遍历我的gridviews，现在我需要放置一个代码来为每个excel工作表生成一个代码。

protected void btExcel_Click(object sender, EventArgs e)
{
    Response.Clear();
    Response.Buffer = true;
    Response.AddHeader("content-disposition", "attachment;filename=FARPOP_Mensal_" + txDt.Text + ".xls");
    Response.ContentEncoding = System.Text.Encoding.GetEncoding("Windows-1252");
    Response.Charset = "ISO-8859-1";
    Response.ContentType = "application/vnd.ms-excel";

    using (StringWriter sw = new StringWriter())
    {
        HtmlTextWriter hw = new HtmlTextWriter(sw);
        GridView[] gvExcel = new GridView[] { gvAnual, gvPorUF, gvPorFarmacia, gvPorMunicipio, gvPorPV, gvPorCNPJ };
        for (int i = 0; i < gvExcel.Length; i++)
        {
            GridView gv = gvExcel[i];

            // 
            // Need to redirect to each sheet here?
            //

            gvExcel[i].HeaderRow.BackColor = Color.White;
            gvExcel[i].UseAccessibleHeader = false;
            gvExcel[i].AllowPaging = false;
            for (int x = 0; x < gvExcel[i].Columns.Count; x++)
            {
                gvExcel[i].Columns[x].Visible = true;
            }

            gvExcel[i].DataBind();
            foreach (TableCell cell in gvExcel[i].HeaderRow.Cells)
            {
                cell.BackColor = Color.CadetBlue;
                cell.Enabled = false;
            }

            foreach (GridViewRow row in gvExcel[i].Rows)
            {
                row.BackColor = Color.White;
                foreach (TableCell cell in row.Cells)
                {

                    cell.Controls.Clear();
                    if (row.RowIndex % 2 == 0)
                    {
                        cell.BackColor = Color.White;
                    }
                    else
                    {
                        cell.BackColor = Color.LightBlue;
                    }
                    cell.CssClass = "textmode";
                }
            }

            gvExcel[i].RenderControl(hw);
        }

        //style to format numbers to string
        string style = @"<style> .textmode { } </style>";
        Response.Write(style);
        Response.Output.Write(sw.ToString());
        Response.Flush();
        Response.End();
    }
}

Answer 1

我遵循maniak1982的评论，找到了一个好的解决方案。

因此，如果您需要使用.NET的多个gridview到多个工作表，则需要下载ClosedXML以及DocumentFormat.OpenXml.dll 。

引用dll后，使用以下代码：

 protected void btExcel_Click(object sender, EventArgs e)
{
    XLWorkbook wb = new XLWorkbook();
    GridView[] gvExcel = new GridView[] { GridView1, GridView2, GridView3, GridView4, GridView5, GridView6};
    string[] name = new string[] { "Name1", "Name2", "Name3", "Name4", "Name5", "Name6" };
    for (int i = 0; i < gvExcel.Length; i++)
    {
        if (gvExcel[i].Visible)
        {
            gvExcel[i].AllowPaging = false;
            gvExcel[i].DataBind();
            DataTable dt = new DataTable(name[i].ToString());
            for (int z = 0; z < gvExcel[i].Columns.Count; z++)
            {
                dt.Columns.Add(gvExcel[i].Columns[z].HeaderText);
            }

            foreach (GridViewRow row in gvExcel[i].Rows)
            {
                dt.Rows.Add();
                for (int c = 0; c < row.Cells.Count; c++)
                {
                    dt.Rows[dt.Rows.Count - 1][c] = row.Cells[c].Text;
                }
            }

            wb.Worksheets.Add(dt);
            gvExcel[i].AllowPaging = true;

        }

    }
    Response.Clear();
    Response.Buffer = true;
    Response.Charset = "";
    Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
    Response.AddHeader("content-disposition", "attachment;filename=Workbook_Name.xlsx");
    using (MemoryStream MyMemoryStream = new MemoryStream())
    {
        wb.SaveAs(MyMemoryStream);
        MyMemoryStream.WriteTo(Response.OutputStream);
        Response.Flush();
        Response.End();
    }
}

我花了几天的时间搜寻...但是运作良好。 要开心