C# 操作 Excel 要点

1、 引用Microsoft.Office.Interop.Excel.dll

打开VS2008的“解决方案资源管理器”，在“引用”文件夹下点击鼠标右键，选择“添加引用”，打开“添加引用”对话框。

 

 

 

在“组件名称”那里找到“Microsoft.Office.Interop.Excel”，如上图所示。这里显示有两个可供选择的“Microsoft.Office.Interop.Excel”版本，我们选择其中的一个就可以了。单击“确定”，该组件就被正确引用进来了，如下图所示。

 

2、引用命名空间、使用别名

using System.Reflection;

using Excel = Microsoft.Office.Interop.Excel;

 

3、简单例子

public void ToExcel(string strTitle)

{

int rowCount = nMax - nMin + 1;//总行数

const int columnCount = 4;//总列数

 

//创建Excel对象

Excel.Application excelApp = new Excel.ApplicationClass();

 

//新建工作簿

Excel.Workbook workBook = excelApp.Workbooks.Add(true);

 

//新建工作表

Excel.Worksheet worksheet = workBook.ActiveSheet as Excel.Worksheet;

 

//设置标题

Excel.Range titleRange = worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[1, columnCount]);//选取单元格

titleRange.Merge(true);//合并单元格

titleRange.Value2 = strTitle; //设置单元格内文本

titleRange.Font.Name = "宋体";//设置字体

titleRange.Font.Size = 18;//字体大小

titleRange.Font.Bold = true;//加粗显示

titleRange.HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter;//水平居中

titleRange.VerticalAlignment = Excel.XlVAlign.xlVAlignCenter;//垂直居中

titleRange.Borders.LineStyle = Excel.XlLineStyle.xlContinuous;//设置边框

titleRange.Borders.Weight = Excel.XlBorderWeight.xlMedium;//边框常规粗细

 

//设置表头

string[] strHead = new string[columnCount] { "序号", "分组", "频数", "相对频数" };

int[] columnWidth = new int[4] { 8, 16, 8, 10 };

for (int i = 0; i < columnCount; i++)

{

Excel.Range headRange = worksheet.Cells[2, i + 1] as Excel.Range;//获取表头单元格

headRange.Value2 = strHead[i];//设置单元格文本

headRange.Font.Name = "宋体";//设置字体

headRange.Font.Size = 12;//字体大小

headRange.Font.Bold = true;//加粗显示

headRange.HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter;//水平居中

headRange.VerticalAlignment = Excel.XlVAlign.xlVAlignCenter;//垂直居中

headRange.ColumnWidth = columnWidth[i];//设置列宽

headRange.Borders.LineStyle = Excel.XlLineStyle.xlContinuous;//设置边框

headRange.Borders.Weight = Excel.XlBorderWeight.xlMedium;//边框常规粗细

}

 

//设置每列格式

for (int i = 0; i < columnCount; i++)

{

Excel.Range contentRange = worksheet.get_Range(worksheet.Cells[3, i+1], worksheet.Cells[rowCount-1 + 3, i+1]);

contentRange.HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter;//水平居中

contentRange.VerticalAlignment = Excel.XlVAlign.xlVAlignCenter;//垂直居中

contentRange.Borders.LineStyle = Excel.XlLineStyle.xlContinuous;//设置边框

contentRange.Borders.Weight = Excel.XlBorderWeight.xlMedium;//边框常规粗细

contentRange.WrapText = true;//自动换行

contentRange.NumberFormatLocal = "@";//文本格式

}

 

//填充数据

for (int i = nMin; i <= nMax; i++)

{

int k = i - nMin;

excelApp.Cells[k + 3, 1] = string.Format("{0}", k + 1);

excelApp.Cells[k + 3, 2] = string.Format("{0}-{1}", i - 0.5, i + 0.5);

excelApp.Cells[k + 3, 3] = string.Format("{0}", subordinativeValues[k].count);

excelApp.Cells[k + 3, 4] = string.Format("{0:0.0000}", subordinativeValues[k].frequency);

}

 

//设置Excel可见

excelApp.Visible = true;

}