C# 使用 Microsoft.Office.Interop.Excel 从 excel 2010 读取数据
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Reading data from excel 2010 using Microsoft.Office.Interop.Excel
提问by Coolenough
I am not able to read data in Excel. Here is the code I am using:
我无法读取 Excel 中的数据。这是我正在使用的代码：
using Excel = Microsoft.Office.Interop.Excel;
Excel.Application xlApp = new Excel.Application();
Excel.Workbook xlWorkbook = xlApp.Workbooks.Open(@"Book1.xlsx", 0, true, 5, "", "", true, Excel.XlPlatform.xlWindows, "\t", false, false, 0, true, 1, 0);
Excel._Worksheet xlWorksheet = (Excel._Worksheet)xlWorkbook.Sheets[1];
Excel.Range xlRange = xlWorksheet.UsedRange;
int rowCount = xlRange.Rows.Count;
int colCount = xlRange.Columns.Count;
for (int i = 1; i <= rowCount; i++)
{
for (int j = 1; j <= colCount; j++)
{
MessageBox.Show(xlWorksheet.Cells[i,j].ToString());
}
}
I get a message box that says something about System.__ComObjectinstead of a value.
How can I fix this?
我收到一个消息框，上面写着一些内容System.__ComObject而不是一个值。
我怎样才能解决这个问题？
采纳答案by Coolenough
I found the solution for above, here is the code:
我找到了上面的解决方案，这是代码：
string temp = (string)(xlRange.Cells[i, j] as Excel.Range).Value2;
MessageBox.Show(temp);
回答by user1204121
Haven′t tested it, but I think it should read
还没有测试过，但我认为它应该阅读
MessageBox.Show(xlRange.Cells[i,j].ToString());
or alternatively
或者
MessageBox.Show(xlRange.Cells[i,j].Value.ToString());
回答by Rakesh
Try this code:
试试这个代码：
MessageBox.Show(((Excel.Range)xlRange.Cells[i,j]).Value2.ToString());
This code works sucessfully for me.
这段代码对我来说很成功。
回答by neverwinter
Try this:
尝试这个：
MessageBox.Show(xlRange.Cells[i][j].Value);
回答by Malek Tubaisaht
use the following function to get data as DATATABLE object for N'th sheet :
使用以下函数将数据作为第 N 个工作表的 DATATABLE 对象获取：
public DataTable GetWorkSheet(int workSheetID)
{
string pathOfExcelFile = fileFullName;
DataTable dt = new DataTable();
try
{
excel.Application excelApp = new excel.Application();
excelApp.DisplayAlerts = false; //Don't want Excel to display error messageboxes
excel.Workbook workbook = excelApp.Workbooks.Open(pathOfExcelFile, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing); //This opens the file
excel.Worksheet sheet = (excel.Worksheet)workbook.Sheets.get_Item(workSheetID); //Get the first sheet in the file
int lastRow = sheet.Cells.SpecialCells(excel.XlCellType.xlCellTypeLastCell, Type.Missing).Row;
int lastColumn = sheet.Cells.SpecialCells(excel.XlCellType.xlCellTypeLastCell, Type.Missing).Column;
excel.Range oRange = sheet.get_Range(sheet.Cells[1, 1], sheet.Cells[lastRow, lastColumn]);//("A1",lastColumnIndex + lastRow.ToString());
oRange.EntireColumn.AutoFit();
for (int i = 0; i < oRange.Columns.Count; i++)
{
dt.Columns.Add("a" + i.ToString());
}
object[,] cellValues = (object[,])oRange.Value2;
object[] values = new object[lastColumn];
for (int i = 1; i <= lastRow; i++)
{
for (int j = 0; j < dt.Columns.Count; j++)
{
values[j] = cellValues[i, j + 1];
}
dt.Rows.Add(values);
}
workbook.Close(false, Type.Missing, Type.Missing);
excelApp.Quit();
}
catch (Exception ex)
{
System.Windows.Forms.MessageBox.Show(ex.Message, "Error", System.Windows.Forms.MessageBoxButtons.OK, System.Windows.Forms.MessageBoxIcon.Error);
}
return dt;
}
