interop c#

. runtime. interopservices. Marshal. releasecomobject (m_objexcel );GC. Collect ();}} [Note: You need to add the Excel. dll component to run vs. net. The Excel component vs. Net itself does not exist. The following describes how to generate EXCEL. dll .]1. Make sure that the machine itself needs to install office.2. copy the excel9.olb file under [c: \ Program Files \ Microsoft Office \ Office: default installation path] to [

The VBA method can call the C # object method through COM InterOP. The basic method is to expose the. NET object through COM InterOP, and then you can call the. NET object method and pass the parameter. However, if the parameter contains a double array, VBA will see the following error message."Function or interface marked as restricted, or the function uses an a

Reading notepad is common and difficult. As follows: /// /// Read notepad/// /// /// Private string Txt2Text (string path){StreamReader srFile = null;String msg = string. Empty;Try{ SrFile = new StreamReader (path, System. Text. Encoding. Default );Msg = srFile. ReadToEnd ();}Catch (Exception ex){Msg = ex. Message;}Finally{If (srFile! = Null){SrFile. Dispose ();SrFile. Close ();}}Return msg;} I have referred to relevant materials for processing Word documents. I think the following methods are

(targetfolder, source ); Break ; Case " . Doc " : Document = New Worddocument (targetfolder, source ); Break ; Case " . Xls " : Document = New Eexceldocument (targetfolder, source ); Break ; Default : Document = New Jsondocument (targetfolder, source ); Break ;}} Else {Console. writeline ( " File not found " );} Return Document ;}} 3.4 create Excell operation class eexceldocument: BaseDocument, icdocument View code Public Class Eexceldocument: Base

C + + in relation to the C language support function overloading is its great feature, I believe that in the use of C language when you want to write a function to implement two integral data to add the functions of adding a floating point data, then the names of the two functions must not be the same, This undoubtedly adds complexity when we use this function, b

except comments, namespace definitions, and references: // ----------------------------------------------------------------------- // Compile the C # source file in the command line: gmcs Invoke.cs In this way, an executable mono-based file Invoke.exe is compiled. Iii. Execution Copy libtest. so to the/lib directory so that our program can find it. Why put it in this directory? This is based on the Linux operating system's search for dynamic l

Sophomore writing next semester, now graduated one months, finishingWell, the previous writing is very naïve, only self-understanding, online a lot of, probably the meaning of the next barmysql=========================================http://user.qzone.qq.com/652768664/blog/1347859952To connect MySQL needs to install MySQL, in the MySQL C-disk installation directory has a connection lib, will change the Lib Add reference with the project OK; static

.. Net micro framework is different from the wince system. From the perspective of application development, only C # development is supported (VB is supported since v4.2... net, you can also use EVC and other tools for C/C ++ development. For the. NET micro Framework Platform, because C # And other. NET languages are h

This series mainly introduces a series of thoughts and experiences from C # development on a Windows platform to Apple development on a Mac platform. This series of articles is gradually accumulated in the initial stage, we hope to provide you with a better and more real experience on the conversion process. In the previous article "from C # To Object C, I learne

Error C1853: "debug\consoleapplication1.pch" Precompiled header file comes from an earlier version of the compiler, or the precompiled header is C + + and uses it in C (or vice versa)Related information:Http://blog.sina.com.cn/s/blog_674cc1fd0100jirq.htmlIf the call is unsuccessful as above, remove the precompiled. C FileRight-click the.

C #4.0IntroducedName Parameter(Msdn translates the name as "named real parameter". I personally think that the name parameter is more vivid, and the optional parameter is also) andOptional Parameter(Optional ). ClientCodeUsing a named parameter means that the parameter name in the method is also part of the public interface. If you modify the name of a public parameter, the caller's code may be damaged. This means that the caller should try to avoid u

Public class excelhelper { # Region member variables Private string templetfile = NULL; Private string outputfile = NULL; Private object missing = missing. value; Private datetime Beforetime; // time before Excel start Private datetime aftertime; // time after Excel startup Microsoft. Office. InterOP. Excel. Application app; Microsoft. Office. InterOP. Excel. Workbook workbook; Microsoft. Office.

1. Many of the features of the C language are built for the convenience of the compiler designer. So the language features of C language are: array subscript starting from 0 instead of 1; The basic data type of C language corresponds directly to the underlying hardware; the Auto keyword is only meaningful for compiler designers who create symbol table portals; Ar