使用C＃将表从SQL Server导出到Excel 2007
我在SQL中的表看起来像这样：
CREATE TABLE InjuryScenario ( InjuryScenario_id int identity(1,1), InjuryDay int, InjuryMonth int, InjuryYear int, InjuryDesc varchar(80), InjuryComments varchar(50), AlmostInjury int, InjuryInSchool varchar(20), ProductInjury varchar(20), Cause_id int, CauseType_id int, CauseChar_id int, Place_id int, PlaceType_id int, InjuryDate_id int, Username varchar(50), TimeStamp datetime default (getdate()), constraint pk_InjuryScenario_id primary key (InjuryScenario_id), constraint fk_Cause_InjuryScenario foreign key(Cause_id) references Cause(Cause_id) on delete cascade, constraint fk_CauseType_InjuryScenario foreign key(CauseType_id) references CauseType(CauseType_id) on delete no action, constraint fk_CauseChar_InjuryScenario foreign key(CauseChar_id) references CauseChar(CauseChar_id) on delete no action, constraint fk_Place_InjuryScenario foreign key(Place_id) references Place(Place_id) on delete cascade, constraint fk_PlaceType_InjuryScenario foreign key(PlaceType_id) references PlaceType(PlaceType_id) on delete no action, constraint fk_InjuryDate_InjuryScenario foreign key(InjuryDate_id) references InjuryDate(InjuryDate_id) on delete cascade, constraint fk_Users_InjuryScenario foreign key(Username) references Users(Username) on delete cascade ) 我用数据填充此表，我想在Excel 2007中显示此表。我怎样才能使用C＃？ 谢谢！
protected void insertBTN(object sender, EventArgs e) {string conString = @"Data Source =XXXX; Initial Catalog=XXXX; Persist Security Info=True;User ID=XXXX; Password=XXXX";SqlConnection sqlCon = new SqlConnection(conString); sqlCon.Open(); SqlDataAdapter da = new SqlDataAdapter("SELECT * from InjuryScenario", sqlCon); System.Data.DataTable dtMainSQLData = new System.Data.DataTable(); da.Fill(dtMainSQLData); DataColumnCollection dcCollection = dtMainSQLData.Columns; // Export Data into EXCEL Sheet Microsoft.Office.Interop.Excel.ApplicationClass ExcelApp = new Microsoft.Office.Interop.Excel.ApplicationClass(); ExcelApp.Application.Workbooks.Add(Type.Missing); // ExcelApp.Cells.CopyFromRecordset(objRS); for (int i = 1; i < dtMainSQLData.Rows.Count + 2; i++) { for (int j = 1; j < dtMainSQLData.Columns.Count + 1; j++) { if (i == 1) { ExcelApp.Cells[i, j] = dcCollection[j - 1].ToString(); } else ExcelApp.Cells[i, j] = dtMainSQLData.Rows[i - 2][j - 1].ToString(); } } ExcelApp.ActiveWorkbook.SaveCopyAs("C:\\Users\\Mor Shivek\\Desktop\\test.xls"); ExcelApp.ActiveWorkbook.Saved = true; ExcelApp.Quit();}
这是为C＃VS-2013 Premium的百分之百工作。 只需复制并粘贴代码就是这样。 它适用于SQL Server数据库您可以将数据保存为xls，xlsx或csv，并可以使用相同的csv进行参数化。 您需要安装以下软件包以使其正常工作。
使用System.Data.SqlClient
使用Excel = Microsoft.Office.Interop.Excel
使用SQL = System.Data
/// ***从这里复制////
SqlConnection cnn; string connectionstring = null; string sql = null; string data = null; int i = 0; int j = 0; ////*** Preparing excel Application Excel.Application xlApp; Excel.Workbook xlWorkBook; Excel.Worksheet xlWorkSheet; object misValue = System.Reflection.Missing.Value; ///*** Opening Excel application xlApp = new Microsoft.Office.Interop.Excel.Application(); xlWorkBook = xlApp.Workbooks.Open(@"Fullpath\Book1.csv"); xlWorkSheet = (Excel.Worksheet)(xlWorkBook.ActiveSheet as Excel.Worksheet); ////*** It will always remove the prvious result from the CSV file so that we can get always the updated data xlWorkSheet.UsedRange.Select(); xlWorkSheet.UsedRange.Delete(Excel.XlDeleteShiftDirection.xlShiftUp); xlApp.DisplayAlerts = false; //xlWorkBook.Save(); /////***Opening SQL Database using Windows Authentication connectionstring = "Integrated Security = SSPI;Initial Catalog=DatabaseName; Data Source=ServerName;"; cnn = new SqlConnection(connectionstring); cnn.Open(); ////** Write your Sql Query here sql = "SELECT TOP 10 [FirstName],[MiddleName],[LastName],[Email],[AltEmail],[AuthorizedUserName] From Tablename"; ///*** Preparing to retrieve value from the database SQL.DataTable dtable = new SQL.DataTable(); SqlDataAdapter dscmd = new SqlDataAdapter(sql, cnn); SQL.DataSet ds = new SQL.DataSet(); dscmd.Fill(dtable); ////*** Generating the column Names here string[] colNames = new string[dtable.Columns.Count]; int col = 0; foreach (SQL.DataColumn dc in dtable.Columns) colNames[col++] = dc.ColumnName; char lastColumn = (char)(65 + dtable.Columns.Count - 1); xlWorkSheet.get_Range("A1", lastColumn + "1").Value2 = colNames; xlWorkSheet.get_Range("A1", lastColumn + "1").Font.Bold = true; xlWorkSheet.get_Range("A1", lastColumn + "1").VerticalAlignment = Excel.XlVAlign.xlVAlignCenter; /////*** Inserting the Column and Values into Excel file for (i = 0 ; i <= dtable.Rows.Count - 1; i++) { for (j = 0; j <= dtable.Columns.Count-1; j++) { data = dtable.Rows[i].ItemArray[j].ToString(); xlWorkSheet.Cells[i + 2, j + 1] = data; } } ///**Saving the csv file without notification. xlApp.DisplayAlerts = false; xlWorkBook.Save(); xlWorkBook.Close(true, misValue, misValue); xlApp.Quit(); releaseObject(xlWorkSheet); releaseObject(xlWorkBook); releaseObject(xlApp); } private void releaseObject(object obj) { try { System.Runtime.InteropServices.Marshal.ReleaseComObject(obj); obj = null; } catch (Exception ex) { obj = null; MessageBox.Show("Exception Occured while releasing object " + ex.ToString()); } finally { GC.Collect(); } }
我试过这个代码工作。
private void button1_Click(object sender, EventArgs e) { SqlConnection cnn; string connectionstring = null; string sql = null; string data = null; int i = 0; int j = 0; Excel.Application xlApp; Excel.Workbook xlWorkBook; Excel.Worksheet xlWorkSheet; object misValue = System.Reflection.Missing.Value; xlApp = new Microsoft.Office.Interop.Excel.Application(); xlWorkBook = xlApp.Workbooks.Add(misValue); xlWorkSheet = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item(1); connectionstring ="Data Source=IN-WTS-SAM;Initial Catalog=MSNETDB;Integrated Security=True;Pooling=False"; cnn = new SqlConnection(connectionstring); cnn.Open(); sql = "SELECT * FROM Emp"; SqlDataAdapter dscmd = new SqlDataAdapter(sql, cnn); DataSet ds = new DataSet(); dscmd.Fill(ds); for (i = 0; i <= ds.Tables[0].Rows.Count - 1; i++) { for (j = 0; j <= ds.Tables[0].Columns.Count - 1; j++) { data = ds.Tables[0].Rows[i].ItemArray[j].ToString(); xlWorkSheet.Cells[i + 1, j + 1] = data; } } xlWorkBook.SaveAs("informations.xls", Excel.XlFileFormat.xlWorkbookNormal, misValue, misValue, misValue, misValue, Excel.XlSaveAsAccessMode.xlExclusive, misValue, misValue, misValue, misValue, misValue); xlWorkBook.Close(true, misValue, misValue); xlApp.Quit(); releaseObject(xlWorkSheet); releaseObject(xlWorkBook); releaseObject(xlApp); MessageBox.Show("Excel file created , you can find the file D:\\Sam-informations.xls"); } private void releaseObject(object obj) { try { System.Runtime.InteropServices.Marshal.ReleaseComObject(obj); obj = null; } catch (Exception ex) { obj = null; MessageBox.Show("Exception Occured while releasing object " + ex.ToString()); } finally { GC.Collect(); } } }
试试这个，如果它适合你。