如何将一些数据写入excel文件（.xlsx）

Question

这就是我想要做的。

1.创建Excel文件（.XLSX）C：//test/files/work1_4.13.14.xlsx与名称+值（日期）

例如：work1_4.13.14.xlsx

2。将标题设置为文件示例：[名称] [年龄] [城市]。

3.我有3个名单，年龄，城市，我需要填写到excel工作表。

这是我的目标

Name Age City 
Ben 20 xyz 
Jack 25 xyz 
Mike 45 zyx 

任何想法？

Answer 1

试试这个代码

Microsoft.Office.Interop.Excel.Application oXL; 
Microsoft.Office.Interop.Excel._Workbook oWB; 
Microsoft.Office.Interop.Excel._Worksheet oSheet; 
Microsoft.Office.Interop.Excel.Range oRng; 
object misvalue = System.Reflection.Missing.Value; 
try 
{ 
    //Start Excel and get Application object. 
    oXL = new Microsoft.Office.Interop.Excel.Application(); 
    oXL.Visible = true; 

    //Get a new workbook. 
    oWB = (Microsoft.Office.Interop.Excel._Workbook)(oXL.Workbooks.Add("")); 
    oSheet = (Microsoft.Office.Interop.Excel._Worksheet)oWB.ActiveSheet; 

    //Add table headers going cell by cell. 
    oSheet.Cells[1, 1] = "First Name"; 
    oSheet.Cells[1, 2] = "Last Name"; 
    oSheet.Cells[1, 3] = "Full Name"; 
    oSheet.Cells[1, 4] = "Salary"; 

    //Format A1:D1 as bold, vertical alignment = center. 
    oSheet.get_Range("A1", "D1").Font.Bold = true; 
    oSheet.get_Range("A1", "D1").VerticalAlignment = 
     Microsoft.Office.Interop.Excel.XlVAlign.xlVAlignCenter; 

    // Create an array to multiple values at once. 
    string[,] saNames = new string[5, 2]; 

    saNames[0, 0] = "John"; 
    saNames[0, 1] = "Smith"; 
    saNames[1, 0] = "Tom"; 

    saNames[4, 1] = "Johnson"; 

    //Fill A2:B6 with an array of values (First and Last Names). 
    oSheet.get_Range("A2", "B6").Value2 = saNames; 

    //Fill C2:C6 with a relative formula (=A2 & " " & B2). 
    oRng = oSheet.get_Range("C2", "C6"); 
    oRng.Formula = "=A2 & \" \" & B2"; 

    //Fill D2:D6 with a formula(=RAND()*100000) and apply format. 
    oRng = oSheet.get_Range("D2", "D6"); 
    oRng.Formula = "=RAND()*100000"; 
    oRng.NumberFormat = "$0.00"; 

    //AutoFit columns A:D. 
    oRng = oSheet.get_Range("A1", "D1"); 
    oRng.EntireColumn.AutoFit(); 

    oXL.Visible = false; 
    oXL.UserControl = false; 
    oWB.SaveAs("c:\\test\\test505.xls", Microsoft.Office.Interop.Excel.XlFileFormat.xlWorkbookDefault, Type.Missing, Type.Missing, 
     false, false, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, 
     Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing); 

    oWB.Close(); 

    //... 

Answer 2

您可以使用ClosedXML。

Store中的数据表中的表，你可以导出表通过这个简单的代码片段擅长：

XLWorkbook workbook = new XLWorkbook(); 
DataTable table = GetYourTable(); 
workbook.Worksheets.Add(table); 

您可以阅读ClosedXML的文档，以了解更多信息。希望这可以帮助！

Answer 3

希望这里是确切的是我们所期待的。

private void button2_Click(object sender, RoutedEventArgs e) 
{ 
    UpdateExcel("Sheet3", 4, 7, "Namachi@gmail"); 
} 

private void UpdateExcel(string sheetName, int row, int col, string data) 
{ 
    Microsoft.Office.Interop.Excel.Application oXL = null; 
    Microsoft.Office.Interop.Excel._Workbook oWB = null; 
    Microsoft.Office.Interop.Excel._Worksheet oSheet = null; 

    try 
    { 
     oXL = new Microsoft.Office.Interop.Excel.Application(); 
     oWB = oXL.Workbooks.Open("d:\\MyExcel.xlsx"); 
     oSheet = String.IsNullOrEmpty(sheetName) ? (Microsoft.Office.Interop.Excel._Worksheet)oWB.ActiveSheet : (Microsoft.Office.Interop.Excel._Worksheet)oWB.Worksheets[sheetName]; 

     oSheet.Cells[row, col] = data; 

     oWB.Save(); 

     MessageBox.Show("Done!"); 
    } 
    catch (Exception ex) 
    { 
     MessageBox.Show(ex.ToString()); 
    } 
    finally 
    { 
     if (oWB != null) 
     oWB.Close(); 
    } 
} 

Answer 4

有可能写入到一个Excel文件，而无需使用Microsoft.Jet.OLEDB.4.0和OleDb打开它。使用OleDb，它的行为就像使用sql写入表一样。

这是我用来创建和写入新的excel文件的代码。没有多余的引用，需要

var connectionString = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\SomePath\ExcelWorkBook.xls;Extended Properties=Excel 8.0"; 
using (var excelConnection = new OleDbConnection(connectionString)) 
{ 
    // The excel file does not need to exist, opening the connection will create the 
    // excel file for you 
    if (excelConnection.State != ConnectionState.Open) { excelConnection.Open(); } 

    // data is an object so it works with DBNull.Value 
    object propertyOneValue = "cool!"; 
    object propertyTwoValue = "testing"; 

    var sqlText = "CREATE TABLE YourTableNameHere ([PropertyOne] VARCHAR(100), [PropertyTwo] INT)"; 

    // Executing this command will create the worksheet inside of the workbook 
    // the table name will be the new worksheet name 
    using (var command = new OleDbCommand(sqlText, excelConnection)) { command.ExecuteNonQuery(); } 

    // Add (insert) data to the worksheet 
    var commandText = $"Insert Into YourTableNameHere ([PropertyOne], [PropertyTwo]) Values (@PropertyOne, @PropertyTwo)"; 

    using (var command = new OleDbCommand(commandText, excelConnection)) 
    { 
     // We need to allow for nulls just like we would with 
     // sql, if your data is null a DBNull.Value should be used 
     // instead of null 
     command.Parameters.AddWithValue("@PropertyOne", propertyOneValue ?? DBNull.Value); 
     command.Parameters.AddWithValue("@PropertyTwo", propertyTwoValue ?? DBNull.Value); 

     command.ExecuteNonQuery(); 
    } 
} 

Answer 5

只要按照下面的步骤：

//启动Excel并得到应用对象。

oXL = new Microsoft.Office.Interop.Excel.Application(); 

oXL.Visible = false;