Question

在我的c＃程序中，我使用excel add in将数据写入excel文件，下面只是我试图访问excel表的一个例子。

 private void button1_Click(object sender, EventArgs e)
        {
                Excel.Application xl_app = (Microsoft.Office.Interop.Excel.Application)System.Runtime.InteropServices.Marshal.GetActiveObject("Excel.Application");
                Excel.Workbook xl_workbook = null;
                xl_workbook = xl_app.ActiveWorkbook;
                Excel.Worksheet sheet = null;
                sheet = (Excel.Worksheet)xl_workbook.Worksheets.get_Item("Sheet1");
                sheet.Cells[1, 1] = "Name";

        }

当我运行这个时，我得到一个错误，说“对象引用没有设置为对象的实例”对于工作表对象。（我使用了这些Microsoft.Office.Interop.Excel， Microsoft.Office.Core;）我是c＃的新手，任何人都可以帮助我，谢谢

Answer 1

  sheet = (Excel.Worksheet)xl_workbook.Worksheets.get_Item(1);

Answer 2

如果您想使用工作表的名称而不是索引，并使用Linq，如下所示：

var xlSheet = xl_workbook.Cast<_Worksheet>().FirstOrDefault(x => x.Name == "Sheet1")

如果找不到工作表，则xlsheet变量将为null

Answer 3

我就是这样做的：

private void button1_Click(object sender, EventArgs e)
{
    Excel.Application xlApp = (Microsoft.Office.Interop.Excel.Application)System.Runtime.InteropServices.Marshal.GetActiveObject("Excel.Application");
    Excel.Workbook xlWorkbook = xlApp.ActiveWorkbook;
    Excel.Worksheet xlWorksheet = xlWorkbook.Sheets[1];
    xlWorksheet.Cells[1,1] = "Name";
}

我使用Visual C＃2010 Express和一个打开的Excel工作簿进行了测试，它对我有用。

Answer 4

没有人回答所以正确的答案，我检查了它并且有效：

Excel.Worksheet activeWorksheet = ((Excel.Worksheet)Application.ActiveSheet);
Excel.Range firstRow = activeWorksheet.get_Range("A1");
firstRow.EntireRow.Insert(Excel.XlInsertShiftDirection.xlShiftDown);
Excel.Range newFirstRow = activeWorksheet.get_Range("A1");
newFirstRow.Value2 = "This text was added by using code";

Answer 5

Excel.Application xlAppToExport = new Excel.Application();
xlAppToExport.Workbooks.Add("");

Excel.Worksheet xlWorkSheetToExport;

xlWorkSheetToExport =(Excel.Worksheet)xlAppToExport.Application.Worksheets.Add();
xlWorkSheetToExport.Name = "customer";

Excel加载项，如何写入Excel工作表

5 个答案: