C＃创建Excel

Translated

View the article in English

使用C#编程创建Excel电子表格文件是C#开发人员的常见任务，今天我们将解决这个问题，包括学习如何创建新的Excel文件、设置单元格样式和插入数据。使用正确的代码，您可以完全自定义和设计您的表格以满足您的需求。我们将一步步讲解如何为您的 .NET 项目创建 C# Excel 工作簿。

C# Excel 工作簿操作步骤

下载适用于 C# 的 IronXL 库
以编程方式在单元格和区域中插入数据
将 Excel 文件保存到指定路径
从 DataTable 插入 Excel 数据
设置工作簿文本、单元格和页面样式等

步骤 1

1. 使用 IronXL 创建 C# Excel 电子表格

今天我们将使用IronXL，这是一个用于Excel功能的C#库，它使得处理Excel文件更加高效。它可免费用于开发项目。安装它并按照教程操作。

下载到您的项目或关注将 NuGet 安装到 Visual Studio.

Install-Package IronXL.Excel

教程

2. C# 创建 Excel 工作簿

一旦我们在项目中安装了IronXL，我们就可以创建一个Excel工作簿。使用 WorkBook.Create()IronXL 的功能。

WorkBook wb = WorkBook.Create();

WorkBook wb = WorkBook.Create();

Dim wb As WorkBook = WorkBook.Create()

VB C#

它将创建一个新的Excel工作簿wb。我们可以指定 XL WorkBook 的类型(.xlsx "或 "xls)在 WorkBook.Create'（创建工作簿）中使用ExcelFileFormat` 作为参数。()功能如下

/**
Create Csharp WorkBook 
anchor-c-num-create-excel-workbook
**/
//for creating .xlsx extension file
WorkBook wb = WorkBook.Create(ExcelFileFormat.XLSX);
//for creating .xls extension file
WorkBook wb = WorkBook.Create(ExcelFileFormat.XLS);

/**
Create Csharp WorkBook 
anchor-c-num-create-excel-workbook
**/
//for creating .xlsx extension file
WorkBook wb = WorkBook.Create(ExcelFileFormat.XLSX);
//for creating .xls extension file
WorkBook wb = WorkBook.Create(ExcelFileFormat.XLS);

'''
'''Create Csharp WorkBook 
'''anchor-c-num-create-excel-workbook
'''*
'for creating .xlsx extension file
Dim wb As WorkBook = WorkBook.Create(ExcelFileFormat.XLSX)
'for creating .xls extension file
Dim wb As WorkBook = WorkBook.Create(ExcelFileFormat.XLS)

VB C#

现在，我们可以使用 wb 创建工作表。

3. C# 创建 Excel 电子表格

要创建工作表，IronXL 提供了 Workbook.CreateWorkSheet 方法。()功能。该函数需要一个字符串参数，我们可以在其中指定WorkSheet的名称。

WorkSheet ws = wb.CreateWorkSheet("SheetName");

WorkSheet ws = wb.CreateWorkSheet("SheetName");

Dim ws As WorkSheet = wb.CreateWorkSheet("SheetName")

VB C#

wb "是工作簿(见上文)并且 ws 是一个新创建的工作表。同样，我们可以根据需要创建任意数量的工作表。例如

/**
Create Csharp WorkSheets 
anchor-c-num-create-excel-workbook
**/
WorkSheet ws1 = wb.CreateWorkSheet("Sheet1");
WorkSheet ws2 = wb.CreateWorkSheet("Sheet2");

/**
Create Csharp WorkSheets 
anchor-c-num-create-excel-workbook
**/
WorkSheet ws1 = wb.CreateWorkSheet("Sheet1");
WorkSheet ws2 = wb.CreateWorkSheet("Sheet2");

'''
'''Create Csharp WorkSheets 
'''anchor-c-num-create-excel-workbook
'''*
Dim ws1 As WorkSheet = wb.CreateWorkSheet("Sheet1")
Dim ws2 As WorkSheet = wb.CreateWorkSheet("Sheet2")

VB C#

4. 插入单元格数据

现在，我们可以在指定的工作表中插入数据。我们将使用Excel的单元格寻址系统：

/**
Insert Data in Cell Address
anchor-insert-cell-data
**/
WorkSheet ["CellAddress"].Value = "Value";

/**
Insert Data in Cell Address
anchor-insert-cell-data
**/
WorkSheet ["CellAddress"].Value = "Value";

'''
'''Insert Data in Cell Address
'''anchor-insert-cell-data
'''*
WorkSheet ("CellAddress").Value = "Value"

VB C#

5. 在范围内插入数据

此方法还允许我们在需要的任意数量的单元格中插入值。我们可以使用Range在一系列单元格中插入数据。

/**
Insert Data in Range
anchor-insert-data-in-range
**/
WorkSheet ["From Cell Address : To Cell Address"].Value="value";

/**
Insert Data in Range
anchor-insert-data-in-range
**/
WorkSheet ["From Cell Address : To Cell Address"].Value="value";

'''
'''Insert Data in Range
'''anchor-insert-data-in-range
'''*
WorkSheet ("From Cell Address : To Cell Address").Value="value"

VB C#

这将在指定范围内的所有单元格中插入value。您可以阅读更多关于C# Excel 范围供您的 .NET 项目使用。

6. 保存Excel文件

在插入数据后，我们需要将Excel文件保存在指定路径。

/**
Save Excel File
anchor-save-excel-file
**/
WorkBook.SaveAs("Path + Filename");

/**
Save Excel File
anchor-save-excel-file
**/
WorkBook.SaveAs("Path + Filename");

'''
'''Save Excel File
'''anchor-save-excel-file
'''*
WorkBook.SaveAs("Path + Filename")

VB C#

通过以上单行代码，新创建的Excel工作簿将保存在指定位置。深入了解C# 创建 Excel 电子表格示例.

7.创建、插入数据和保存示例

/**
Complete Example
anchor-create-insert-data-and-save-example
**/
using IronXL;
static void Main(string [] args)
{
    //Create new XL WorkBook
    WorkBook wb = WorkBook.Create(ExcelFileFormat.XLSX);
    //Create worksheet of specified WorkBook
    WorkSheet ws = wb.CreateWorkSheet("Sheet1");
    //insert data by cell addressing
    ws ["A1"].Value = "Welcome";
    ws ["A2"].Value = "To";
    ws ["A3"].Value = "IronXL";
    //insert data by range
    ws ["C3:C8"].Value = "Cell Value";
    //save the file in specified path
    wb.SaveAs("sample.xlsx");
    Console.WriteLine("successfully created.");
    Console.ReadKey();    
}

/**
Complete Example
anchor-create-insert-data-and-save-example
**/
using IronXL;
static void Main(string [] args)
{
    //Create new XL WorkBook
    WorkBook wb = WorkBook.Create(ExcelFileFormat.XLSX);
    //Create worksheet of specified WorkBook
    WorkSheet ws = wb.CreateWorkSheet("Sheet1");
    //insert data by cell addressing
    ws ["A1"].Value = "Welcome";
    ws ["A2"].Value = "To";
    ws ["A3"].Value = "IronXL";
    //insert data by range
    ws ["C3:C8"].Value = "Cell Value";
    //save the file in specified path
    wb.SaveAs("sample.xlsx");
    Console.WriteLine("successfully created.");
    Console.ReadKey();    
}

'''
'''Complete Example
'''anchor-create-insert-data-and-save-example
'''*
Imports IronXL
Shared Sub Main(ByVal args() As String)
	'Create new XL WorkBook
	Dim wb As WorkBook = WorkBook.Create(ExcelFileFormat.XLSX)
	'Create worksheet of specified WorkBook
	Dim ws As WorkSheet = wb.CreateWorkSheet("Sheet1")
	'insert data by cell addressing
	ws ("A1").Value = "Welcome"
	ws ("A2").Value = "To"
	ws ("A3").Value = "IronXL"
	'insert data by range
	ws ("C3:C8").Value = "Cell Value"
	'save the file in specified path
	wb.SaveAs("sample.xlsx")
	Console.WriteLine("successfully created.")
	Console.ReadKey()
End Sub

VB C#

下面是我们新创建的 Excel 工作簿的截图，名为 sample.xlsx：

8. 从 DataTable 到 C# Excel

在可能是复杂的代码行中，IronXL提供了一种高效的方法，可以将DataTable数据转换为Excel文件，并保存到指定位置。创建一个新的Excel文件，并从DataTable中填充数据。简单!

首先，让我们创建一个包含数据的新DataTable。然后，创建Excel文件，插入并保存。

/**
Excel from DataTable
anchor-c-num-excel-from-datatable
**/
using IronXL;
static void Main(string [] args)
{
    //create new datatable
    DataTable dt = new DataTable();
    dt.Columns.Add("id");
    dt.Columns.Add("name");
    dt.Columns.Add("phone");
    //fill data in datatable
    for (int i = 0; i < 5; i++)
    {
        dt.Rows.Add("id" + i.ToString(), "name" + i.ToString(), "phone" + i.ToString());
    }
    //Create new XL file
    WorkBook wb = WorkBook.Create(ExcelFileFormat.XLSX);
    //Create WorkSheet
    WorkSheet ws = wb.CreateWorkSheet("sheet1");
    //send data in worksheet from datatable
    int j = 1; 
    foreach (DataRow row in dt.Rows)
    {
        ws ["A" + j].Value = row ["id"].ToString();
        ws ["B" + j].Value = row ["name"].ToString();
        ws ["C" + j].Value = row ["phone"].ToString();
        j = j + 1;
    }
    //save the file
    wb.SaveAs("sample.xlsx");
}

/**
Excel from DataTable
anchor-c-num-excel-from-datatable
**/
using IronXL;
static void Main(string [] args)
{
    //create new datatable
    DataTable dt = new DataTable();
    dt.Columns.Add("id");
    dt.Columns.Add("name");
    dt.Columns.Add("phone");
    //fill data in datatable
    for (int i = 0; i < 5; i++)
    {
        dt.Rows.Add("id" + i.ToString(), "name" + i.ToString(), "phone" + i.ToString());
    }
    //Create new XL file
    WorkBook wb = WorkBook.Create(ExcelFileFormat.XLSX);
    //Create WorkSheet
    WorkSheet ws = wb.CreateWorkSheet("sheet1");
    //send data in worksheet from datatable
    int j = 1; 
    foreach (DataRow row in dt.Rows)
    {
        ws ["A" + j].Value = row ["id"].ToString();
        ws ["B" + j].Value = row ["name"].ToString();
        ws ["C" + j].Value = row ["phone"].ToString();
        j = j + 1;
    }
    //save the file
    wb.SaveAs("sample.xlsx");
}

'''
'''Excel from DataTable
'''anchor-c-num-excel-from-datatable
'''*
Imports IronXL
Shared Sub Main(ByVal args() As String)
	'create new datatable
	Dim dt As New DataTable()
	dt.Columns.Add("id")
	dt.Columns.Add("name")
	dt.Columns.Add("phone")
	'fill data in datatable
	For i As Integer = 0 To 4
		dt.Rows.Add("id" & i.ToString(), "name" & i.ToString(), "phone" & i.ToString())
	Next i
	'Create new XL file
	Dim wb As WorkBook = WorkBook.Create(ExcelFileFormat.XLSX)
	'Create WorkSheet
	Dim ws As WorkSheet = wb.CreateWorkSheet("sheet1")
	'send data in worksheet from datatable
	Dim j As Integer = 1
	For Each row As DataRow In dt.Rows
		ws ("A" & j).Value = row ("id").ToString()
		ws ("B" & j).Value = row ("name").ToString()
		ws ("C" & j).Value = row ("phone").ToString()
		j = j + 1
	Next row
	'save the file
	wb.SaveAs("sample.xlsx")
End Sub

VB C#

下面是我们的输出结果：

现在，让我们使用 IronXL 设置 XL WorkBook 的单元格属性。

9. 设置 Excel 工作簿样式

现在，让我们设置单元格属性。有时我们需要以多种不同的要求以编程方式设置样式。 IronXL允许我们使用多种不同的功能轻松设置单元格样式。

我们可以使用Excel文件的单元格寻址系统来指定应用样式的位置。让我们设置一些日常生活中经常使用的基本样式属性。

//bold the text of specified cell
WorkSheet ["CellAddress"].Style.Font.Bold =true;

//Italic the text of specified cell
WorkSheet ["CellAddress"].Style.Font.Italic =true;

//Strikeout the text of specified cell
WorkSheet ["CellAddress"].Style.Font.Strikeout = true;

//border style of specific cell 
WorkSheet ["CellAddress"].Style.BottomBorder.Type = IronXL.Styles.BorderType.Dotted;

//border color of specific cell 
WorkSheet ["CellAddress"].Style.BottomBorder.SetColor("color value");

//bold the text of specified cell
WorkSheet ["CellAddress"].Style.Font.Bold =true;

//Italic the text of specified cell
WorkSheet ["CellAddress"].Style.Font.Italic =true;

//Strikeout the text of specified cell
WorkSheet ["CellAddress"].Style.Font.Strikeout = true;

//border style of specific cell 
WorkSheet ["CellAddress"].Style.BottomBorder.Type = IronXL.Styles.BorderType.Dotted;

//border color of specific cell 
WorkSheet ["CellAddress"].Style.BottomBorder.SetColor("color value");

'bold the text of specified cell
WorkSheet ("CellAddress").Style.Font.Bold =True

'Italic the text of specified cell
WorkSheet ("CellAddress").Style.Font.Italic =True

'Strikeout the text of specified cell
WorkSheet ("CellAddress").Style.Font.Strikeout = True

'border style of specific cell 
WorkSheet ("CellAddress").Style.BottomBorder.Type = IronXL.Styles.BorderType.Dotted

'border color of specific cell 
WorkSheet ("CellAddress").Style.BottomBorder.SetColor("color value")

VB C#

IronXL还提供了一种在指定范围内设置所有上述属性的方法。单元格样式将应用于该范围内的所有单元格，如下所示：

//bold the text of specified range cells
WorkSheet ["FromCellAddress : ToCellAddress"].Style.Font.Bold =true;

//Italic the text of specified range cells
WorkSheet ["FromCellAddress : ToCellAddress"].Style.Font.Italic =true;

//Strikeout the text of specified range cells
WorkSheet ["FromCellAddress : ToCellAddress"].Style.Font.Strikeout = true;

//border style of specified range cells 
WorkSheet ["FromCellAddress : ToCellAddress"].Style.BottomBorder.Type = IronXL.Styles.BorderType.Dotted;

//border color of specified range cells 
WorkSheet ["FromCellAddress : ToCellAddress"].Style.BottomBorder.SetColor("color value");

//bold the text of specified range cells
WorkSheet ["FromCellAddress : ToCellAddress"].Style.Font.Bold =true;

//Italic the text of specified range cells
WorkSheet ["FromCellAddress : ToCellAddress"].Style.Font.Italic =true;

//Strikeout the text of specified range cells
WorkSheet ["FromCellAddress : ToCellAddress"].Style.Font.Strikeout = true;

//border style of specified range cells 
WorkSheet ["FromCellAddress : ToCellAddress"].Style.BottomBorder.Type = IronXL.Styles.BorderType.Dotted;

//border color of specified range cells 
WorkSheet ["FromCellAddress : ToCellAddress"].Style.BottomBorder.SetColor("color value");

'bold the text of specified range cells
WorkSheet ("FromCellAddress : ToCellAddress").Style.Font.Bold =True

'Italic the text of specified range cells
WorkSheet ("FromCellAddress : ToCellAddress").Style.Font.Italic =True

'Strikeout the text of specified range cells
WorkSheet ("FromCellAddress : ToCellAddress").Style.Font.Strikeout = True

'border style of specified range cells 
WorkSheet ("FromCellAddress : ToCellAddress").Style.BottomBorder.Type = IronXL.Styles.BorderType.Dotted

'border color of specified range cells 
WorkSheet ("FromCellAddress : ToCellAddress").Style.BottomBorder.SetColor("color value")

VB C#

让我们来看一个完整的示例，包括创建新的 XL WorkBook 和应用单元格样式。

/**
Set Workbook Styling
anchor-set-excel-workbook-style
**/
using IronXL;
static void Main(string [] args)
{
    WorkBook wb = WorkBook.Create(ExcelFileFormat.XLSX);
    WorkSheet ws = wb.CreateWorkSheet("Sheet1");
    ws ["B2:G2"].Value = "Range1";          
    ws ["B4:G4"].Value = "Range2";
    //------setting the styles----------
    ws ["B2:D2"].Style.Font.Bold = true;
    ws ["E2:G2"].Style.Font.Italic = true;
    ws ["B4:D4"].Style.Font.Strikeout = true;
    ws ["E4:G4"].Style.BottomBorder.Type = IronXL.Styles.BorderType.Dotted;
    ws ["E4:G4"].Style.BottomBorder.SetColor("#ff6600");
    wb.SaveAs("sample.xlsx");
    Console.WriteLine("successfully created.");
    Console.ReadKey();
}

/**
Set Workbook Styling
anchor-set-excel-workbook-style
**/
using IronXL;
static void Main(string [] args)
{
    WorkBook wb = WorkBook.Create(ExcelFileFormat.XLSX);
    WorkSheet ws = wb.CreateWorkSheet("Sheet1");
    ws ["B2:G2"].Value = "Range1";          
    ws ["B4:G4"].Value = "Range2";
    //------setting the styles----------
    ws ["B2:D2"].Style.Font.Bold = true;
    ws ["E2:G2"].Style.Font.Italic = true;
    ws ["B4:D4"].Style.Font.Strikeout = true;
    ws ["E4:G4"].Style.BottomBorder.Type = IronXL.Styles.BorderType.Dotted;
    ws ["E4:G4"].Style.BottomBorder.SetColor("#ff6600");
    wb.SaveAs("sample.xlsx");
    Console.WriteLine("successfully created.");
    Console.ReadKey();
}

'''
'''Set Workbook Styling
'''anchor-set-excel-workbook-style
'''*
Imports IronXL
Shared Sub Main(ByVal args() As String)
	Dim wb As WorkBook = WorkBook.Create(ExcelFileFormat.XLSX)
	Dim ws As WorkSheet = wb.CreateWorkSheet("Sheet1")
	ws ("B2:G2").Value = "Range1"
	ws ("B4:G4").Value = "Range2"
	'------setting the styles----------
	ws ("B2:D2").Style.Font.Bold = True
	ws ("E2:G2").Style.Font.Italic = True
	ws ("B4:D4").Style.Font.Strikeout = True
	ws ("E4:G4").Style.BottomBorder.Type = IronXL.Styles.BorderType.Dotted
	ws ("E4:G4").Style.BottomBorder.SetColor("#ff6600")
	wb.SaveAs("sample.xlsx")
	Console.WriteLine("successfully created.")
	Console.ReadKey()
End Sub

VB C#

下面是我们新创建的名为 sample.xlsx 的 Excel 工作簿的样子：