使用c＃读取excel表格数据

我有几个Excel表excel文件。 我想读取Excel表格中的所有数据，并将其复制到不同的Excel表格中。 一个Excel表可能有几个表

我通过VBA做到了这一点。 我想find一个C＃代码来实现它。 这是我使用的VBA代码。

Dim tableObject As ListObject Dim oLastRow As ListRow Dim srcRow As Range Set sheet = ThisWorkbook.Worksheets("Sheet1") For Each tableObject In sheet.ListObjects Set srcRow = tableObject.DataBodyRange Set oLastRow = Worksheets("Sheet2").ListObjects("table1").ListRows.Add srcRow.Copy oLastRow.Range.PasteSpecial xlPasteValues Next 

Answer 1

我想你会发现Excel的COM接口与VBA非常相似，因为类库是完全相同的。 唯一的挑战是抓住Excel实例，然后pipe理语法差异（例如，VBA使用括号作为索引器，而C＃使用方括号）。

假设你的VBA工作，这应该是C＃中相同的代码来获取一个开放的Excel实例，并做你所做的。 如果你想打开一个新的Excel实例，这实际上更容易（对Google来说很简单）：

 Excel.Application excel; Excel.Workbook wb; try { excel = (Excel.Application)Marshal.GetActiveObject("Excel.Application"); excel.Visible = true; wb = (Excel.Workbook)excel.ActiveWorkbook; } catch (Exception ex) { ErrorMessage = "Trouble Locating Open Excel Instance"; return; } Excel.Worksheet sheet = wb.Worksheets["Sheet1"]; foreach (Excel.ListObject lo in sheet.ListObjects) { Excel.Range srcRow = lo.DataBodyRange; Excel.ListRow oLastRow = wb.Worksheets["Sheet2"].ListObjects["table1"].ListRows.Add(); srcRow.Copy(); oLastRow.Range.PasteSpecial(Excel.XlPasteType.xlPasteValues); } 

这一切都假设你已经引用Excel COM并设置你的使用：

 using Excel = Microsoft.Office.Interop.Excel; 

Answer 2

尝试遵循这一点：

 public static DataTable exceldata(string filePath) { DataTable dtexcel = new DataTable(); bool hasHeaders = false; string HDR = hasHeaders ? "Yes" : "No"; string strConn; if (filePath.Substring(filePath.LastIndexOf('.')).ToLower() == ".xlsx") strConn = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filePath + ";Extended Properties=\"Excel 12.0;HDR=" + HDR + ";IMEX=0\""; else strConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filePath + ";Extended Properties=\"Excel 8.0;HDR=" + HDR + ";IMEX=0\""; OleDbConnection conn = new OleDbConnection(strConn); conn.Open(); DataTable schemaTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "TABLE" }); //Looping Total Sheet of Xl File /*foreach (DataRow schemaRow in schemaTable.Rows) { }*/ //Looping a first Sheet of Xl File DataRow schemaRow = schemaTable.Rows[0]; string sheet = schemaRow["TABLE_NAME"].ToString(); if (!sheet.EndsWith("_")) { string query = "SELECT * FROM [" + sheet3 + "]"; OleDbDataAdapter daexcel = new OleDbDataAdapter(query, conn); dtexcel.Locale = CultureInfo.CurrentCulture; daexcel.Fill(dtexcel); } conn.Close(); return dtexcel; } 

您还可以使用以下代码部分从Excel表格中导入数据

 static void Main(string[] args) { try { ReadInData readInData = new ReadInData(@"C:\SC.xlsx", "sc_2014"); IEnumerable<Recipient> recipients = readInData.GetData(); } catch (Exception ex) { if(!(ex is FileNotFoundException || ex is ArgumentException || ex is FileToBeProcessedIsNotInTheCorrectFormatException)) throw; Console.WriteLine(ex.Message); } Console.Write(Press any key to continue...); Console.ReadKey(true); } public static class ReadInData { public static IEnumerable<Recipient> GetData(string path, string worksheetName, bool isFirstRowAsColumnNames = true) { return new ExcelData(path).GetData(worksheetName, isFirstRowAsColumnNames) .Select(dataRow => new Recipient() { Municipality = dataRow["Municipality"].ToString(), Sexe = dataRow["Sexe"].ToString(), LivingArea = dataRow["LivingArea"].ToString() }); } } private static IExcelDataReader GetExcelDataReader(string path, bool isFirstRowAsColumnNames) { using (FileStream fileStream = File.Open(path, FileMode.Open, FileAccess.Read)) { IExcelDataReader dataReader; if (path.EndsWith(".xls")) dataReader = ExcelReaderFactory.CreateBinaryReader(fileStream); else if (path.EndsWith(".xlsx")) dataReader = ExcelReaderFactory.CreateOpenXmlReader(fileStream); else throw new FileToBeProcessedIsNotInTheCorrectFormatException("The file to be processed is not an Excel file"); dataReader.IsFirstRowAsColumnNames = isFirstRowAsColumnNames; return dataReader; } } private static DataSet GetExcelDataAsDataSet(string path, bool isFirstRowAsColumnNames) { return GetExcelDataReader(path, isFirstRowAsColumnNames).AsDataSet(); } private static DataTable GetExcelWorkSheet(string path, string workSheetName, bool isFirstRowAsColumnNames) { DataTable workSheet = GetExcelDataAsDataSet(path, isFirstRowAsColumnNames).Tables[workSheetName]; if (workSheet == null) throw new WorksheetDoesNotExistException(string.Format("The worksheet {0} does not exist, has an incorrect name, or does not have any data in the worksheet", workSheetName)); return workSheet; } private static IEnumerable<DataRow> GetData(string path, string workSheetName, bool isFirstRowAsColumnNames = true) { return from DataRow row in GetExcelWorkSheet(path, workSheetName, isFirstRowAsColumnNames).Rows select row; }