C # methods and code for generating Excel files

Source: Internet
Author: User
Tags visual studio

An example:

Class Apptest


Private Excel.applicationclass _x;

public static void Main0 ()


Apptest a = new Apptest ();

a._x = new Excel.applicationclass ();

A._x.usercontrol = false;

for (int i = 0; i < 4; i++)


A.savetoxls ("d://test//" + i + ". xls"); This example is the test folder created under D disk


A._x.quit ();

System.Runtime.InteropServices.Marshal.ReleaseComObject ((object) a._x);

System.GC.Collect ();


private void Savetoxls (string filename)


Excel.workbookclass WB = (excel.workbookclass) this._x.workbooks.add (System.Reflection.Missing.Value);

for (int i = 1;i <= 4; i++)


This._x.cells[i,1]=i.tostring ();

this._x.cells[i,2]= "' Bbb2";

this._x.cells[i,3]= "' ccc3";

this._x.cells[i,4]= "' Aaa4";


Wb. Saved = true;

This._x.activeworkbook.savecopyas (filename);



"Note: Running in vs.net is to add Excel.dll components, the Excel component Vs.net itself is not, and the following is the method for generating Excel.dll." 】

1. To ensure that the machine itself to install Office.

2. Copy the Excel9.olb file under [C:/Program files/microsoft office/office: Default installation path] to the [c:/visual studio.net/sdk/v1.1/bin:vs.net installation path] path.

3. Open Visual Studio. Net2003 command prompt, run tlbimp excel9.olb Excel.dll, the C:/visual component is generated under [Studio.net/sdk/v1.1/bin Excel.dll].

4. Adding a Excel.dll reference to the project is OK.

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