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发布时间:2015-09-25 作者:网络 阅读:102次

 前面的我就不翻译了。老外操作的是Excel 2000。所有Excel的程序操作都来源于Excel的对象库Excel9.olb.本例也只是对这个东东做一个简单的操作了解。有告诫待于朋友们的具体了解:)也算是为我们站点上天天为Excel烦的兄弟们,指一条“明路”吧:) 
首先的一步就是使用Tlbimp这个工具将Excel9.0的对象库文件Excel8.olb转换成为dll,这样才能做为.Net平台Assembly来使用:)操作如下:

TlbImp Excel9.olb Excel.dll

只要有了这个Excel.dll,现在我们就能使用Excel的各种操作函数了。 
下面就让我们具体看看C#是如何使用这些东东吧。

1. 创建一个新Excel的Application:


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


2. 让这个工程可见:

exc.set_Visible(0, true);

3. 获取WorkBooks集合:

Workbooks workbooks = exc.Workbooks;

4. 加入新的WorkBook:

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

5. 获取WorkSheets集合:


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

6. 给单元格设置变量:


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; 

}

现在我们来看看如何使用数组,他有些类似于设置单元格。仅仅需要的改变只是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);


输出结果:

   大家需要了解Tlbimp这个工具的使用啊:)这个东东很有用,可以将普通Win32程序移植到.Net下面来:)


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