Change File Extension Using C

Question

I have many file types  pdf  tiff  jpeg  bmp  etc  My question is how can I change file extension  I tried this   my file  c  my documents my images cars a jpg  string extension   Path GetExtension myffile   myfile replace extension   Jpeg      No matter what type of file it is  the format I specify must be with the file name  But it does not work  I get file path from browser like c        a jpg  and the file format is a jpeg  So  when I try to delete it  it gives me an error  Cannot find the file on specified path   So  I am thinking it has something to do with the file extension that does not match  So  I am trying to convert  jpg to  jpeg and delete the file then

User · Answer

try this   filename   Path ChangeExtension   blah      in you Case   myfile  c  my documents my images cars a jpg  string extension   Path GetExtension myffile   filename   Path ChangeExtension myfile   blah      You should look this post too   http   msdn microsoft com en-us library system io path changeextension aspx

User · Answer

The method GetFileNameWithoutExtension  as the name implies  does not return the extension on the file   In your case  it would only return  a    You want to append your   Jpeg  to that result   However  at a different level  this seems strange  as image files have different metadata and cannot be converted so easily

User · Answer

You should do a move of the file to rename it  In your example code you are only changing the string  not the file   myfile   c  my documents my images cars a jpg   string extension   Path GetExtension myffile    myfile replace extension   Jpeg      you are only changing myfile  which is a string   To move the actual file  you should do  FileInfo f   new FileInfo myfile   f MoveTo Path ChangeExtension myfile    Jpeg       See FileInfo MoveTo

User · Answer

There is  Path ChangeExtension method  E g    var result   Path ChangeExtension myffile    jpg      In the case if you also want to physically change the extension  you could use File Move method   File Move myffile  Path ChangeExtension myffile    jpg

User · Answer

Convert file format to png  string newfilename     string filename      Photo      lbl ImgPath Text ToString     get filename from specific path where we store image    string newfilename   Path ChangeExtension filename    png     Convert file format from jpg to png

[c#] Change File Extension Using C#

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