Question

我有WCF Service以DataTable类型返回数据。我想在Workbook_Startup事件中将此数据插入Excel工作簿。

最好的方法是什么？

（VS .NET 3.5 Excel 2010工作簿项目）

WCF服务代码：

public DataTable GetQuarterTargetAchievement()
{
    var dt = new DataTable("TargetAchievement");

    using (var conn = new SqlConnection(GetConnectionString()))
    {
        using (var da = new SqlDataAdapter("SELECT fld1, fld2, ... , fldN FROM dbo.ReportTable; ", conn))
        {
            da.Fill(dt);
        }
    }

    return dt;
}

客户代码：

var dt = proxy.GetQuarterTargetAchievement();

Answer 1

试试这个例子，这应该足以让你入门在顶部的使用部分添加此

using Microsoft.Office.Interop.Excel; 
using System.Runtime.InteropServices;

您可能还需要在项目级别添加参考确保在选择参考 - ＆gt;时订购列表加 - ＆GT;并根据您已安装的版本

选择正确版本的Microsoft Office Interop程序集可能是12或14版，我猜...

private static void Excel_FromDataTable(DataTable dt)
{
    // Create an Excel object and add workbook...
    Excel.ApplicationClass excel = new Excel.ApplicationClass();
    Excel.Workbook workbook = excel.Application.Workbooks.Add(true); // true for object template???

    // Add column headings...
    int iCol = 0;
    foreach (DataColumn c in dt.Columns)
    {
        iCol++;
        excel.Cells[1, iCol] = c.ColumnName;
    }
    // for each row of data...
    int iRow = 0;
    foreach (DataRow r in dt.Rows)
    {
        iRow++;

        // add each row's cell data...
        iCol = 0;
        foreach (DataColumn c in dt.Columns)
        {
            iCol++;
            excel.Cells[iRow + 1, iCol] = r[c.ColumnName];
        }
    }

    // Global missing reference for objects we are not defining...
    object missing = System.Reflection.Missing.Value;

    // If wanting to Save the workbook...
    workbook.SaveAs("MyExcelWorkBook.xls",
    Excel.XlFileFormat.xlXMLSpreadsheet, missing, missing,
    false, false, Excel.XlSaveAsAccessMode.xlNoChange,
    missing, missing, missing, missing, missing);

    // If wanting to make Excel visible and activate the worksheet...
    excel.Visible = true;
    Excel.Worksheet worksheet = (Excel.Worksheet)excel.ActiveSheet;
    ((Excel._Worksheet)worksheet).Activate();

    // If wanting excel to shutdown...
    ((Excel._Application)excel).Quit();
}

Answer 2

最终解决方案：

var dt = proxy.GetQuarterTargetAchievement();

int
    column = 0,
    row = 0;

foreach (DataColumn col in dt.Columns)
{
    this.Application.Cells[1, ++column] = col.ColumnName;
}

foreach (DataRow r in dt.Rows)
{
    row++;
    column = 0;
    foreach (DataColumn c in dt.Columns)
    {
        this.Application.Cells[row + 1, ++column] = r[c.ColumnName];
    }
}

Answer 3

旧格式或无效类型库。（HRESULT异常：0x80028018（TYPE_E_INVDATAREAD））

Microsoft.Office.Interop.Excel.Workbook workbook = 
    excel.Application.Workbooks.Add(true); // true for object template???

Answer 4

有一个名为EPPlus的开源库，我找到了一个教程。它可能对你有所帮助。

DataTable to Excel

如何将DataTable插入（绑定）到Excel工作簿（VS Excel 2010工作簿项目）

4 个答案: