How to save a variable from a function and use it in another function in MATLAB GUI?

Hi,

I have made a MATLAB GUI which has two buttons. I want to perform some tasks on CallBack event of both these buttons.

I have obtained a variable FileName when the first button is pressed. But as soon as the function of first button ends, the variable gets deleted. I want to use this variable when the second button is pressed which is obviously a different function. Since, the first function variable is deleted as soon as the function ends, how can I use this variable within the second button's function.

I know how to do it by saving it as .mat and recalling it but it will make the GUI interface unfriendly. Can you please tell me another way to save a variable before the first function ends and recall it later in the second function?

Thank you.

Answer 1

[Gerd]

Hi Asad,

before the "first button" function end use

mydata.value = "directory result"
setappdata(gcf,'mydata',mydata);

At the beginning of the "second button" function use

mydata = getappdata(gcf, 'mydata');
disp(mydata.value); % shows the value

[Muhammad Asad]

Actually the first button is the browse button. So, in the first button function, I have this code:

[FileName,PathName]=uigetfile

FullPath=[PathName FileName]

Now, I want to use this FullPath variable to be passed to second function. Can you tell me how the above code lines should be modified according to these variable names?

[Muhammad Asad]

Okay, I did it. Thanks :)

Answer 2

[Sean de Wolski]

FAQ

[Krishna Kumar]

Yes.I had suggested the same

in OP's thread in newsgroup-http://www.mathworks.com/matlabcentral/newsreader/view_thread/309582