Displaying multiple lines in MATLAB GUIDE text edit box

Hello! I am trying to create a GUI using Matlab's GUIDE feature, and I want to display the file paths of folders that users choose for processing. I have a callback function on a "browse folders" button. The "selected_directory" handles represents the text box I want to print to, while the "browse_files_btn" is the handle for the button that executes the code below.

When the user hits the button, a file explorer appears, and I want it to display all the user-selected files, each on a new line.

Here is what I have so far, but this throws the following error:

"Warning: Single line Edit Controls can not have multi-line text"

I have seen answers to this question in the App Designer, but I am using GUIDE instead, so those don't apply. Can anyone help?

function browse_files_btn_Callback(hObject, eventdata, handles)
filename = uigetfile('*.txt','Select Relevant Files','MultiSelect','on')
numfiles = length(filename)

for i = 1:numfiles
    
    set(handles.selected_directory, 'String', filename)
    
end
end

Answer 1

[Rik]

You need to make sure the max property is set to a large enough value, and that the uicontrol type supports multiple lines.