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  • Excel_To_DataTable

    /// <summary>
            /// Read data in excel file to datatable
            /// </summary>
            /// <param name="filename">Excel file name</param>
            /// <param name="sheetNum">Which sheet to read</param>
            /// <returns></returns>
            public System.Data.DataTable GetExcelTable(string filename, int sheetNum)
            {
                Microsoft.Office.Interop.Excel.Application myExcel = new Microsoft.Office.Interop.Excel.Application();
                object missing = Missing.Value;
                Workbook myBook = myExcel.Application.Workbooks.Open(filename, missing, missing, missing,
                 missing, missing, missing, missing, missing, missing,
                 missing, missing, missing, missing, missing);  //open excel file
    
                if (myBook != null)
                {
                    myExcel.Visible = false;
    
                    Worksheet mySheet = (Worksheet)myBook.Worksheets[sheetNum];
                    System.Data.DataTable dt = new System.Data.DataTable();
    
                    for (int j = 1; j <= mySheet.Cells.CurrentRegion.Columns.Count; j++)
                        dt.Columns.Add();
    
                    for (int i = 1; i <= mySheet.Cells.CurrentRegion.Rows.Count; i++)
                    {
                        DataRow myRow = dt.NewRow();
    
                        for (int j = 1; j <= mySheet.Cells.CurrentRegion.Columns.Count; j++)
                        {
                            Microsoft.Office.Interop.Excel.Range temp = (Microsoft.Office.Interop.Excel.Range)mySheet.Cells[i, j];
                            string strValue = temp.Text.ToString();
                            myRow[j - 1] = strValue;
                        }
                        dt.Rows.Add(myRow);
                    }
                    myExcel.Quit();
    
                    //Kill excel process
                    System.Diagnostics.Process[] myProcesses = System.Diagnostics.Process.GetProcessesByName("EXCEL");
                    foreach (System.Diagnostics.Process instance in myProcesses)
                    {
                        instance.Kill();
                    }
    
                    return dt;
                }
    
                return null;
            }
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  • 原文地址:https://www.cnblogs.com/johnsmith/p/3180006.html
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