dt.Columns.Add(dc);
range = (Excel.Range)worksheet.Cells[1, ++ColumnID];
}
//End
for (int iRow = 2; iRow <= iRowCount; iRow++)
{
DataRow dr = dt.NewRow();
for (int iCol = 1; iCol <= iColCount; iCol++)
{
range = (Excel.Range)worksheet.Cells[iRow, iCol];
cellContent = (range.Value2 == null) ? "" : range.Text.ToString();
dr[iCol - 1] = cellContent;
}
dt.Rows.Add(dr);
}
wath.Stop();
TimeSpan ts = wath.Elapsed;
//将数据读入到DataTable中——End
return dt;
}
catch
{
return null;
}
finally
{
workbook.Close(false, oMissiong, oMissiong);
System.Runtime.InteropServices.Marshal.ReleaseComObject(workbook);
workbook = null;
app.Workbooks.Close();
app.Quit();
System.Runtime.InteropServices.Marshal.ReleaseComObject(app);
app = null;
GC.Collect();
GC.WaitForPendingFinalizers();
}
}
/// <summary>
/// 使用COM,多线程读取Excel(1 主线程、4 副线程)
/// </summary>
/// <param name="excelFilePath">路径</param>
/// <returns>DataTabel</returns>
public System.Data.DataTable ThreadReadExcel(string excelFilePath)
{
Excel.Application app = new Excel.Application();
Excel.Sheets sheets = null;
Excel.Workbook workbook = null;
object oMissiong = System.Reflection.Missing.Value;
System.Data.DataTable dt = new System.Data.DataTable();
wath.Start();
try
{
if (app == null)
{
return null;
}
workbook = app.Workbooks.Open(excelFilePath, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong,