How to make my code read the input values in appdesigner?

Hi all

I am making an application that should get some input values from UI. But then should run some mfiles that need to know those values. What should I do ? make those variables global ? how ?

[Mehmet Ziya KESKIN]

Call the function(mfiles) from the callback of the UI element. Something like;

funToCall(uin1,uin2)

There is a lot of ways to do it I suggest you search for it!

[farzad]

Thank you , but the mfile I am calling is a main file and is not a function. should I make it a function ? I did run(filename)

and put the

global input1

in both the mfile and under UI call function, is that wrong ?

[Mehmet Ziya KESKIN]

If the your script is non-related to your app, I dont think global would work. Instead use

getappdata/setappdata

or

assignin

to base. Using a function is always better I think, and would solve your problems easily.

[farzad]

ok , since I am doing it from appdesigner, I get the input from one pushbutton , but I should pass it through another push button, should be be global between them ? how ?

[Mehmet Ziya KESKIN]

Global would work. Define global in opening function, define it in pushbutton callbacks, as well. Then set the values.

See this;

https://matlab.fandom.com/wiki/FAQ#How_can_I_share_data_between_callback_functions_in_my_GUI.28s.29.3F

[farzad]

Thank you very much

I am having a problem with the push button , shall you please help me first with this ? cause this is the vlaue I need to pass :

my code in appdesigner :

 % Button pushed function: ChooseDirectoryButton
        function ChooseDirectoryButtonPushed(app, event)
            global currentFolder
            app.ChooseDirectory.value=uigetdir;
            currentFolder= app.ChooseDirectory.value;
            cd(currentFolder)

and throught the other button I do :

% Button pushed function: StartButton
        function StartButtonPushed(app, event)
            run(filename)
        end

But when I press the StartButton , I get the Error :

No appropriate method, property, or field 'ChooseDirectory' for class 'app1'.

Error in app1/ChooseDirectoryButtonPushed (line 15)
            app.ChooseDirectory.value=uigetdir;
 
Error using matlab.ui.control.internal.controller.ComponentController/executeUserCallback (line 309)
Error while evaluating Button PrivateButtonPushedFcn.

[Mehmet Ziya KESKIN]

Try starting with the basics, may be a tutorial. There exist syntax error in your code like

% app.ChooseDirectory.value
app.ChooseDirectory.Value

You can't set a directory(string) to a value etc. Try sth like this, I havent tested;

function ChooseDirectoryButtonPushed(app, event)
    global currentFolder;
    currentFolder = uigetdir;  
    
function StartButtonPushed(app, event)
    global currentFolder;
    assignin('base','currentFolder',currentFolder);
    goFolder = strcat(currentFolder,'\filename.m');
    run(goFolder);

I am not really familiar with app designer, you may find more resources if you work with GUIDE.

[farzad]

Dear Mehmet , I would've not got to this point without your help , app designer is the same as GUIDE but only has made things a bit easier to handle, but the code is exactly the same in both.

still with your solution I get the same error. Somehow it's like pushbutton can not pass the ugetdir into the code

[farzad]

The problem in both cases is the Push buttons. I changed the ChangeDirectory push button to Edit Field Text, and it worked smoothly.

but then the Start button did nor run the mfile

Attempt to execute SCRIPT Fsolver as a function:
E:\filename.m

Error in app1/StartButtonPushed (line 18)
            run(filename)
 
Error using matlab.ui.control.internal.controller.ComponentController/executeUserCallback (line 309)
Error while evaluating Button PrivateButtonPushedFcn.