c# - Is there any way to make a method with more than one instance? -

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• should declare methods using overloads or optional parameters in c# 4.0? 11 answers

private void extractions(string htmlfilename, int offlinefilenumber, bool onlineoffline)         {             if (onlineoffline == false)             {                 offlinedownload.offhtmlfiles();                 page = offlinedownload.offlinefiles[offlinefilenumber];                 byte[] bytes1 = file.readallbytes(page);                 page = encoding.getencoding(1255).getstring(bytes1);                 textextractor.getdatetimelist(page);                 streamwriter w = new streamwriter(@"c:\temp\" + htmlfilename);//@"d:\rotterhtml\rotterscoops.html");                 w.write(page);                 w.close();                 extractlinks.links(@"c:\temp\" + htmlfilename);                 textextractor.extracttext(@"c:\temp\" + htmlfilename, newtext);             }             else             {                 client.encoding = system.text.encoding.getencoding(1255);                 page = client.downloadstring("http://rotter.net/scoopscache.html");                 textextractor.getdatetimelist(page);                 streamwriter w = new streamwriter(@"d:\rotterhtml\rotterscoops.html");                 w.write(page);                 w.close();                 extractlinks.links(@"d:\rotterhtml\rotterscoops.html");                 textextractor.extracttext(@"d:\rotterhtml\rotterscoops.html", newtext);             }         } 

if user calls method want him have 2 options call 3 variables:

string htmlfilename, int offlinefilenumber, bool onlineoffline 

or call without variables , if it's () automatic true.

you can "overload" method. have same name multiple parameter signatures.

private void extractions() {  } 

since method "void", don't know mean " if it's () automatic true."

unless meant was:

private void extractions(string htmlfilename, int offlinefilenumber) {      extractions(htmlfilename, offlinefilenumber, true); } 

of course make offline paremeter optional , give default of true.

private void extractions(string htmlfilename, int offlinefilenumber, bool onlineoffline = true) {      .... }