How to take input from Edit Text Field and load the data with Push Button

hello,

I want to create a guide interface where the user enters the file name .xlsx or .csv in a text field and load the data from the table by clicking on a button.

Thanks

Answer 1

[Cris LaPierre]

I'd be wary of having manual name entry. See this answer on how to use uigetfile.

https://www.mathworks.com/matlabcentral/answers/449455-creating-a-file-upload-option-button-in-app-designer

If you are new to app designer, I suggest going through the tutorial. Once you are familiar with accessing properties of your components and using callbacks, the approach for your original question is

1. add a callback to the button
2. In the callback, retrieve the Value property of the edit field
3. Use the retrieved value to indicate the file in your loading function.

It could look something like this

% Button pushed function: LoadButton
function LoadButtonPushed(app, event)
    fname = app.EditField.Value;
    app.data = readmatrix(fname);
end

See this page for how to share data within an app (here, the variable app.data).