我从 C# Windows 窗体中读取 Excel 文档。Excel 工作簿中有 25 个工作表。我可以成功读取第一个工作表。但是当我将其更改为工作表 2 时,它根本无法工作。我没有使用OLEDB..
我想在每张纸上阅读 100 行.. 以下是我的代码...
` dt.Columns.Add("Amount", typeof(double));
dt.Columns.Add("ChequeNo", typeof(int));
dt.Columns.Add("month", typeof(int));
int AmountRow = 100;
int ChequeNoRow = 101;
int Column = 3;
xlApp = new Excel.ApplicationClass();
xlWorkBook = xlApp.Workbooks.Open(path, 0, true, 5, "", "", true, Microsoft.Office.Interop.Excel.XlPlatform.xlWindows, "\t", false, false, 0, true, 1, 0);
xlWorkSheet = (Excel.Worksheet)xlWorkBook.Sheets[2];\\This place is the changing worksheets
range = xlWorkSheet.UsedRange;
double chequeAmount;
double chequeNo;
for (int i = Column; i < 15; i++)
{
chequeAmount = (double)(range.Cells[AmountRow, i] as Excel.Range).Value2;
chequeNo = (double)(range.Cells[ChequeNoRow, i] as Excel.Range).Value2;
if (chequeNo != 0.0)
{
dt.Rows.Add(Convert.ToDouble(chequeAmount), Convert.ToInt32(chequeNo), i);
}
}
dataGridView1.DataSource = dt;
xlWorkBook.Close(true, null, null);
xlApp.Quit();
releaseObject(xlWorkSheet);
releaseObject(xlWorkBook);
releaseObject(xlApp);`
releaseObject 方法不在这里......那些工作完美......
`xlWorkSheet = (Excel.Worksheet)xlWorkBook.Sheets[1];`
这就是我更改工作表的方式.. 以下行给出了一个异常.. [Null point Exception]
chequeAmount = (double)(range.Cells[AmountRow, i] as Excel.Range).Value2;
希望你会知道答案..