使用 VB.Net Core 8.0，其中 Microsoft.Office.Interop.Excel 不适用于 MS Excel 2016

Question

在我的控制台应用程序中，我想使用 Microsoft.Office.Interop.Excel 库。我使用 Visual Studio 2022 和 Microsoft Office 2016。我添加了一个参考 Microsoft.Excel 16.0 Object Library ，并在我的班级中安装了 Microsoft.Office.Interop.Excel nuget 包后使用 Excel = Microsoft.Office.Interop.Excel 添加了；当我单击构建时，它不会显示任何错误并告诉构建完成，但是当我运行我的应用程序时，我在中断模式下收到此错误

System.IO.FileNotFoundException: 'Could not load file or assembly 'office, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c'. The system cannot find the file specified.'

这是程序的样子

using Microsoft.Office.Interop.Excel;

class ExcelInteropExample
{
    static void Main()
    {
        // Create Excel application instance
        Microsoft.Office.Interop.Excel._Application app = new Microsoft.Office.Interop.Excel.Application();
        Microsoft.Office.Interop.Excel._Workbook workbook = app.Workbooks.Add(Type.Missing);
        Microsoft.Office.Interop.Excel._Worksheet worksheet = null;
        worksheet = (Microsoft.Office.Interop.Excel._Worksheet)workbook.Sheets["Sheet1"];
        worksheet = (Microsoft.Office.Interop.Excel._Worksheet)workbook.ActiveSheet;
        worksheet.Name = "Exported from DataTable";

        // Create and populate a System.Data.DataTable for testing
        System.Data.DataTable Dt = new System.Data.DataTable();
        Dt.Columns.Add("Column1", typeof(string));
        Dt.Columns.Add("Column2", typeof(int));

        // Add some sample data to the DataTable
        Dt.Rows.Add("Data1", 1);
        Dt.Rows.Add("Data2", 2);

        // Write data from DataTable to Excel worksheet
        for (int i = 0; i < Dt.Rows.Count; i++)
        {
            for (int j = 0; j < Dt.Columns.Count; j++)
            {
                worksheet.Cells[i + 1, j + 1] = Dt.Rows[i][j].ToString();
            }
        }

        // Save the workbook
        workbook.SaveAs("C:\\Users\\lenovo\\Downloads\\ExcelInteropExample.xlsx", XlFileFormat.xlWorkbookNormal, Type.Missing, Type.Missing, Type.Missing, Type.Missing, XlSaveAsAccessMode.xlExclusive, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
    }
}

Answer 1

如果您想从任何基于 .Net 8 的应用程序自动化 Office 应用程序，则无需使用任何特定的 NuGet 包。您所需要的只是添加对所需类型库的 COM 引用：

然后将所需的COM引用添加到项目中：

因此，对于控制台应用程序，您的项目文件应如下所示：

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net8.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>

  <ItemGroup>
    <COMReference Include="Microsoft.Office.Interop.Excel">
      <WrapperTool>tlbimp</WrapperTool>
      <VersionMinor>9</VersionMinor>
      <VersionMajor>1</VersionMajor>
      <Guid>00020813-0000-0000-c000-000000000046</Guid>
      <Lcid>0</Lcid>
      <Isolated>false</Isolated>
      <EmbedInteropTypes>true</EmbedInteropTypes>
    </COMReference>
  </ItemGroup>

</Project>