whats wrong with my app?

I have declared app2 as the input argument in my startup for visualiseringsapp2_1 because it is using the public property from app2 (called antall_soner), and the callingapp is app 3 . ( meaning the visualiseringsapp2_1 is called from app3), as you can see.

I am gettin this error message when I run the app:

Error using visualiseringsapp2_1/startupFcn (line 23)

Not enough input arguments.

Error in visualiseringsapp2_1 (line 115)

runStartupFcn(app, @(app)startupFcn(app, varargin{:}))

Error in app3/DisplayallresultsButtonPushed (line 1855)

visualiseringsapp2_1(app)

Error using matlab.ui.control.internal.controller.ComponentController/executeUserCallback (line 335)

Error while evaluating Button PrivateButtonPushedFcn.

Dot indexing is not supported for variables of this type.

Error in visualiseringsapp2_1/SwitchValueChanged (line 42)

for i = 1:app.Callingapp.antall_soner

Error using matlab.ui.control.internal.controller.ComponentController/executeUserCallback (line 378)

Error while evaluating Switch PrivateValueChangedFcn.

[Kojiro Saito]

How do you call visualiseringsapp2_1.mlapp?

function startupFcn(app, app2, app3) requires two additional input arguments (app2 and app3).

[Muazma Ali]

@Kojiro Saito I have intentionally not sent app2 and app3 as these requires other functions to run and nobody would like to look at the problem then and I know my problem lies in visualiseringsapp2_1.

But I was unsure whether I should have both app2 and app3 as input parameters; app3 is the one where the visuaiseringsapp2_1 is called from meaning a buttom from app3 leads to visualiseringsapp2_1 . I have put app2 as an input parameter because I am using a public property from that app.

[Kojiro Saito]

It's because "Not enough input arguments" occurs in the startupFcn of visualiseringsapp2_1, which means there is an issue in calling the visualiseringsapp2_1 from other apps.

I think app3/DisplayallresultsButtonPushed (line 1855) is the root cause.

How about changing from

visualiseringsapp2_1(app)

to

visualiseringsapp2_1(antall_soner, app)

in DisplayallresultsButtonPushed callback in app3?

antall_soner is app2 and app is app3 in this context.

[Muazma Ali]

but you havent written app2 in the parenthesis but antall_soner instead..?

[Muazma Ali]

@Kojiro Saito I think I understand it now, I will try, :)

[Muazma Ali]

@Kojiro Saito Hi! :)

I have done some changes following your guidelines:

• Please see the visualiseringsapp2_1.
• In app3 in the displayallresults button callback I have these inputs:

visualiseringsapp2_1(app.Callingapp.antall_soner,app) because antall_soner comes from app2 which is callingapp for app3.

But then I get this error when I run my apps, and the error is related to visualiseringsapp2_1:

No appropriate method, property, or field 'antall_soner' for class

'visualiseringsapp2_1'.

Error in visualiseringsapp2_1/SwitchValueChanged (line 43)

for i = 1:app.antall_soner

Error using matlab.ui.control.internal.controller.ComponentController/executeUserCallback (line 378)

Error while evaluating Switch PrivateValueChangedFcn.

>>

[Kojiro Saito]

@Muazma Ali

"No appropriate method, property, or field 'antall_soner' for class 'visualiseringsapp2_1'." means there is no difinition of antall_soner in visualiseringsapp2_1.mlapp.

Could you confirm app.antall_soner exists in the Public Property in visualiseringsapp2_1.mlapp?

[Muazma Ali]

@Kojiro Saito Are you sure that I have to write app.antall_soner in the public proberty field in visualiseringsapp2_1 and not antall_soner. As I have understood you declare the variables there and use app. in front of them when you use the variables in the callbacks..

[Kojiro Saito]

@Muazma Ali

I'm a bit confused.

in app3, you are calling the following function.

visualiseringsapp2_1(app.Callingapp.antall_soner,app) 

in this context, visualiseringsapp2_1 is app1, app is app3, but app.Callingapp is as app3 in app2, so how do you define app.Callingapp inside app3?

[Muazma Ali]

@Kojiro Saito I am sorrry but I didnt understand your question..?

antall_soner is a variable that belongs to app2 which is callingapp in app3. Thats why I wrote app.callingapp.antall_soner as one of my input, and app represents app3 as you also wrote..

But I am getting error

[Muazma Ali]

@Kojiro Saito Hi

I think now I understand what you meant,

in the startup function for app3, I have this code:

function startupFcn(app, app2)

app.Callingapp = app2;

end

[Muazma Ali]

@Kojiro Saito Hi ! :)

Maybe the error lies in the way I have defined antall_soner in the for loop in visualiseringsapp2_1..?

I have written for i = 1:app.antall_soner

and the error is :

No appropriate method, property, or field 'antall_soner' for class

'visualiseringsapp2_1'.

Error in visualiseringsapp2_1/SwitchValueChanged (line 43)

for i = 1:app.antall_soner

Error using matlab.ui.control.internal.controller.ComponentController/executeUserCallback (line 378)

Error while evaluating Switch PrivateValueChangedFcn.

[Kojiro Saito]

@Muazma Ali

I am not sure why in app3, the startup would be.

function startupFcn(app, app2)
    app.Callingapp = app2;
end

Did you mean app3 is calling visuaiseringsapp2_1? I am not clear why app2 is an input argument of app3.

[Muazma Ali]

@Kojiro Saito app3 is leading to visualiserignsapp2_1 yes and app2 leads to app3 by a push button that is why it is an input argument there..

[Kojiro Saito]

@Muazma Ali I understand you want to execute app2 Push Button -> app3, then, app3 Push Button -> visualiserignsapp2_1. Is it correct?

[Muazma Ali]

@Kojiro Saito Yes, each app leads to the other.

And I want to use the public property called antall_soner from app2 in visualiseringsapp2_1

Answer 1

[Kojiro Saito]

I think the following will work.

app2.mlapp

Set public properties.

properties (Access = public)
    antall_soner
end

and button callback is the following.

function App2ButtonPushed(app, event)
    app3(app)
end

app3.mlapp

Set private properties.

properties (Access = private)
    Callingapp 
end

and starup function is as follows.

function startupFcn(app, app2)
    app.Callingapp = app2;
end

and Button Push Callback will be.

function App3ButtonPushed(app, event)
    visualiseringsapp2_1(app.Callingapp, app) 
end

visualiseringsapp2_1.mlapp

Set public properties.

 properties (Access = public)
     Callingapp
     app2
 end

and starup function is as follows.

function startupFcn(app, app2, app3)
    app.Callingapp = app3;
    app.app2 = app2;
    app.antall_soner = app2.antall_soner;
end

[Muazma Ali]

@Kojiro Saito Hi again! :)

I dont understand the purpose of writing

app.app2 = app2;

app.antall_soner = app2.antall_soner;

Please explain, :)

[Muazma Ali]

@Kojiro Saito

In addition to what you wrote I declared antall_soner as a public property in visualiseringsapp2_1. Because I was getting error again saying unrecogninsed variable antall_soner for class of visualiseringsapp2_1