How can I select multiple items from a GUI listbox?

How can I select multiple items from a GUI listbox?

Answer 1

[MathWorks Support Team]

To select multiple items in a List box the Max and Min properties must be defined. If Max - Min > 1, then list boxes allow multiple item selection. If Max - Min <= 1, then list boxes do not allow multiple item selection. Please refer to the documentation page for Max and Min for the List box in the following link:

https://www.mathworks.com/help/matlab/ref/matlab.ui.control.uicontrol-properties.html#d124e1650755

An example for creating a List box that allows multiple item selection is created with the commands below:

txt_cell_array = {'line1';'line2';'line3';'line4';'line5'};
h_list = uicontrol('style','list','max',10,...
   'min',1,'Position',[20 20 80 60],...
   'string',txt_cell_array);

Notice that the UICONTROL function creates the List box, as per its documentation page:

https://www.mathworks.com/help/matlab/ref/uicontrol.html

For a list of additional properties for the UICONTROL please refer to the following documentation page:

https://www.mathworks.com/help/matlab/ref/matlab.ui.control.uicontrol-properties.html

Note that if you currently have a List box available, to enable multiple item selection you need to set the Max and Min properties of this List box via its handle.

set(h_list,'Max',2,'Min',0);

The above command allows a maximum number of two selections in the List box with handle "h_list". To dissable multiple item selection on the List box, set the properties as follows:

set(h_list,'Max',1,'Min',0);