uigetfile and fileread combined

Hi i can open my file by use of

 S = fileread('coord.txt')

but i want to combine this to my other code where i use

[filename,pathname] = uigetfile({'*.txt'},'Load Coordinates for structure');

so make S still read the file like before with fileread but i want to be able to combine this to a pop up window

Answer 1

[Walter Roberson]

fullname = fullfile(pathname, filename);
S = fileread(fullname);

[polo Mahmoud]

thank you :)