How to clear the value from a numeric or text edit field on Matlab App Designer?

As you can see in the following image, I have an app.editfield (numeric) called app.editfieldN and another app.editfield (text) called app.editfieldT, as well as a refresh button called app.Button.

The point is that, when I run the app, and when values are introduced in those editfields (as you can see in the following image), I would like to reset/clear/delet those values when clicking on the refresh button. How can I achieve that?

I have tried that whenever Refresh button is clicked:

app.editfieldN.Value=='0';
app.editfieldT.Value==' ';

It does "clear" the editfields but It doesn't seems very professional and I think that it distorts following values that will be entered in the future.

So, there is any professional/right way of clearing/deleting does values appart from mine?

Answer 1

[Cris LaPierre]

There is a syntax error in your code. You assign values with a single equals sign. You compare values with two equal signs. Also, a numeric edit filed should be assigned a numeric value. You are assigning it a text value because zero is in quotes.

This is the approach i would probably take given what I know about your app. My code would be

app.editfieldN.Value=0;
app.editfieldT.Value='';

[KEE OOI TING]

Is there any way to clear all editfield? My app is to receive user input for a prediction model, but I want to let them clear the boxes every time they want to start over.

[Cris LaPierre]

There is no single command that will clear all components. You will need to write code for each component you want to clear.

Answer 2

[sing]

A workoaround solution is to set the color of the text equal to the box's background (typically white).

In your case:

app.editfieldN.FontColor=[1 1 1]

Answer 3

[Mario Malic]

Hello,

All looks good, except double equal marks, you can create a (helper) function that would do that

function ClearFields(app)
    app.editfieldN.Value=0;
    app.editfieldT.Value='';
end

In the button callback you would just call the function

function ButtonPushedFcn(source, event)
    ClearFields(app)
end