用.NET 操作Excel編程;

引用：D:\Program Files\Microsoft Office\Office\EXCEL9.OLB 

1. 創建一個新Excel的Application: 

Application exc = new Application(); 
if (exc == null) { 
Console.WriteLine("ERROR: EXCEL couldn't be started"); 
return 0; 
} 


2. 讓這個工程可見: 

exc.set_Visible(0, true); 

3. 獲取WorkBooks集合: 

Workbooks workbooks = exc.Workbooks; 

4. 加入新的WorkBook: 

_Workbook workbook = workbooks.Add(XlWBATemplate.xlWBATWorksheet, 0); 

5. 獲取WorkSheets集合: 


_Worksheet worksheet = (_Worksheet) sheets.get_Item(1); 
if (worksheet == null) { 
Console.WriteLine ("ERROR in worksheet == null"); 
} 

6. 給單元格設置變量： 


Range range1 = worksheet.get_Range("C1", Missing.Value); 
if (range1 == null) { 
Console.WriteLine ("ERROR: range == null"); 
} 
const int nCells = 1; 
Object[] args1 = new Object[1]; 
args1[0] = nCells; 
range1.GetType().InvokeMember("Value", BindingFlags.SetProperty, null, range1, args1); 


例程: 


using System; 
using System.Reflection; 
using System.Runtime.InteropServices; 
using Excel; 

class Excel { 
public static int Main() { 
Application exc = new Application(); 
if (exc == null) { 
Console.WriteLine("ERROR: EXCEL couldn't be started!"); 
return 0; 
} 

exc.set_Visible(0, true); 
Workbooks workbooks = exc.Workbooks; 
_Workbook workbook = workbooks.Add(XlWBATemplate.xlWBATWorksheet, 0); 
Sheets sheets = workbook.Worksheets; 

_Worksheet worksheet = (_Worksheet) sheets.get_Item(1); 
if (worksheet == null) { 
Console.WriteLine ("ERROR: worksheet == null"); 
} 

Range range1 = worksheet.get_Range("C1", Missing.Value); 
if (range1 == null) { 
Console.WriteLine ("ERROR: range == null"); 
} 
const int nCells = 1; 
Object[] args1 = new Object[1]; 
args1[0] = nCells; 
range1.GetType().InvokeMember("Value", BindingFlags.SetProperty, null,range1, args1); 
return 100; 
} 
} 

現在我們來看看如何使用數組，他有些類似於設置單元格。僅僅需要的改變只是args2[0] = array2; 
const int nCell = 5; 
Range range2 = worksheet.get_Range("A1", "E1"); 
int[] array2 = new int [nCell]; 
for (int i=0; i < array2.GetLength(0); i++) { 
array2[i] = i+1; 
} 
Object[] args2 = new Object[1]; 
args2[0] = array2; 
range2.GetType().InvokeMember("Value", BindingFlags.SetProperty, null, range2, args2);