How to save a file with a dialog box

hi everyone, I want to save a MyFile.txt from the current folder in another folder with a dialog box so that I can change the name and the folder. i used

[file,path] = uiputfile('MyFile.txt','Save my file');

hier the dialog box get opened but there is no saved file when i save. so I thought I could used this one

copyfile('MyFile.txt',uigetdir('C\:',); 

 but it doesn't work either. how can i do that?
Thank you

Answer 1

[Azzi Abdelmalek]

[file,path]=uigetfile
name=fullfile(path,file)  % The file name with the path
df='destination'   % Your destination folder
nameF=fullfile(df,file);
copyfile(name,nameF)