How to demonstrate analysis time in app designer window ?

Hi all

I have tic;toc in my code. How can I display the analysis time in an edit field as : hrs:minutes:seconds ?

should it be numeric or text edit field ?

Answer 1

[Ameer Hamza]

Text edit field will be more suitable. See the attached app.

[farzad]

Thank you very much Ameer, I create an editfield value changed, and using the toc, nothing appears.

my main calculations are under a push button and when after the for loop I do :

app.AnalysisTimeEditField.Value = char(duration(0,0,toc));

nothing appears

[Ameer Hamza]

Is this line inside a callback function? Can you share your file where this issue happen?

[farzad]

well not the whole file, but yes, this line is inside a pushbutton

function ExecuteButtonPushed(app, event)

[Ameer Hamza]

Then it should run as documented. Can you add the checkpoint at this line, and see if this line is executed.

[farzad]

How do I do that exactly ?

[Ameer Hamza]

You can find information about breakpoint here: https://www.mathworks.com/help/matlab/matlab_prog/set-breakpoints.html

Also read my answer here: https://www.mathworks.com/matlabcentral/answers/401446-where-are-the-variables-in-app-designer-stored-and-how-can-i-view-them

[farzad]

I did it,all variables are brought into workspace, except the problematic line

[Ameer Hamza]

What happen at that line, if you run it step by step.

[farzad]

Just nothing. since it comes from editfield into pushbutton callback, maybe I should create public property ?

[farzad]

I got it, it has the value, but does not appear on the field

[Ameer Hamza]

You can add breakpoint inside the callback too.

[farzad]

Well I just got this window by hovering over the equation. The problem now is that this value does not move from push button function to the edit field function. I think one of the two sides of the equation should be a public property

[Ameer Hamza]

app.AnalysisTimeEditField.Value

is the property of the app. It should update the edit field.

[farzad]

Yes right

[farzad]

I see the variable in WS as

AnalysisTimeEditField: [1×1 struct]

but the edit field is not updated : a point : I can click into this field and write in it. should it be like that ? am I using the write editfield or maybe the right setttings ?

[Ameer Hamza]

I suggest you make a simple app with just a button and edit filed, that will make it easy to debug the issue. Because I cannot see any issue with the syntax, so this is likely some unrelated problem. I guess you are directly trying to update a pre-existing app. That is making it difficult to debug this issue.

[farzad]

Thank you very much. by the way, I have this question that is not being viewed, may you kindly check it ?

https://uk.mathworks.com/matlabcentral/answers/521105-how-do-i-draw-barh-using-both-axes-values

[farzad]

dear Ameer, I think this method works because you put the analysistime.Value under the StartUpFcn(app) function ,

I guess it will be different if you put it under pushbutton function. for simple cases it might work. but for my structure under pushbutton , after I finish a for loop, I do the toc

and matlab demostrates that value in workspace, the problem is that the value toc is not public property ( and I actually made it public property but it did not work again ), I mean I tried to assign the value by migrating toc under the editfunction value.

and also putting it under the pushbutton the editfield value does not update.

also : I have a close all command after that, does it do anything ?

[Ameer Hamza]

Check the attached app. It shows that the toc works inside the callback.

[farzad]

ok , there is clearly a difference, in your code, you have only one function for push button.

But in my code, I have one Value Changed function for the edit field , and then under the pushbutton function I try the line to change its value. aren't they overwriting ?

[farzad]

dear Ameer, since I still have not been successfull in applying this analysis time in my code :

strangely I can update a UITable contents from my calculation, so can't understand why this one is not working.

since I had created the edit fields a few times, their callbacks are left as junk in my code while I have deleted the editfield from interface. their names do not appear on component browser but I see the function in the code and it's not ediable any solution to this ?

[Ameer Hamza]

Can you check the code browser pane? Are the callback functions still mentioned there?

[farzad]

what do you mean by code browser pane ? where I write the code ? Yes ! Exactly and that's the problem that I can not solve.those functions can not be deleted from the code

[Ameer Hamza]

If you go to the code view. You find the code browser pane on the left. See if those functions still exist here.

[farzad]

Thank you ! yes ! this was resolved.

I tried to create it again, without callback, and only used its handle. actually it correctly gets the value when I use break point to check the parameters :

K>> app.AnalysisTimeEditField

ans = 

  struct with fields:

    Value: '00:22:06'

but it is not demonstrated on the Edit Field. I don't know what is preventing it.

the structure of my code is :

if condition

tic

for

try

CatchME

end

end

end

close all

app.AnalysisTimeEditfield= char(duration(0,0,te))

[Ameer Hamza]

Can you create a new app and try with just an edit field, without any other elements. If it still does not work, please attach the smaller app so that I can inspect it to find the problem.

[farzad]

I did, there it works. Simply. but not in my code !! even despite doing exactly the same thing

[Ameer Hamza]

There must be some other elements, which is affecting the textEdit field.

[farzad]

so you mean , no guesses ?

[Ameer Hamza]

Without inspecting the actual app, there is not much that can be done. As you have also observed that it works in a standalone app. So there must be some other thing in that app that is preventing that.

[farzad]

All I have after finishing the loop :

te=toc  
waitbar(1, h1, 'msg')
close all
h2 = waitbar(1,'msg');
app.EditField_7.Value = char(duration(0,0,te))