Make edit fields visible/invisible based on length of an array

Hello,

I am programming an app which includes to edit fields that creates arrays and based on the length of these array I want to display a new set of edit fields.

The solution I found for this problem is to make a lot of if statements when the length of the array changes.

Is there a more efficient way? I dont know if it is possible to group edit fields in some way to make this easier.

Thank you for helping!

Answer 1

[Uttkarsh Jha]

Hey Erik,could you share your matlab app screenshot/code snippet?

That way the community may be able to assist you better.

Answer 2

[Erik Vabo Vatsvaag]

classdef app1 < matlab.apps.AppBase

    % Properties that correspond to app components
    properties (Access = public)
        UIFigure                    matlab.ui.Figure
        x2HS1EditFieldLabel         matlab.ui.control.Label
        hs1x2                       matlab.ui.control.EditField
        x1HS1EditField_2Label       matlab.ui.control.Label
        hs2x1                       matlab.ui.control.EditField
        HSEditFieldLabel            matlab.ui.control.Label
        HSEditField                 matlab.ui.control.EditField
        x2HS2EditFieldLabel         matlab.ui.control.Label
        hs2x2                       matlab.ui.control.EditField
    end

    
    properties (Access = private)
        XCoord %Description
        HS %Description
    end
    

    methods (Access = private)

        % Value changed function: XCoordinatesEditField
        function XCoordinatesEditFieldValueChanged(app, event)
            app.XCoord = str2double(strsplit(event.Value));
            app.HS = str2double(strsplit(app.HSEditField.Value));
            if(length(app.XCoord) > 0 && length(app.HS)>0)
                app.hs1x1.Enable = true;
                app.hs1x1.Editable = true;
                app.hs1x1.Visible = true;
                app.x1HS1EditFieldLabel.Text = ['a at x = ', num2str(app.XCoord(1)), ', Hs = ', num2str(app.HS(1))];
            end
            if(length(app.XCoord) >= 2 && length(app.HS)>0)
                app.hs1x2.Enable = true;
                app.hs1x2.Editable = true;
                app.hs1x2.Visible = true;
                x2HS1EditFieldLabel.Text ="a at x = " + num2str(app.XCoord(2)) + ", Hs =" + num2str(app.HS(1));
            end
            if(length(app.HS) >= 2 && length(app.XCoord)>0)
                app.hs2x1.Enable = true;
                app.hs2x1.Editable = true;
                app.hs2x1.Visible = true;
                x1HS1EditField_2Label.Text = "a at x = " + num2str(app.XCoord(1)) + ", Hs = " + num2str(app.HS(2));
            end
            if(length(app.HS) >=2 && length(app.XCoord)>=2)
                app.hs2x2.Enable = true;
                app.hs2x2.Editable = true;
                app.hs2x2.Visible = true;
                x2HS2EditFieldLabel.Text = "a at x = " + num2str(app.XCoord(2)) + ", Hs = " + num2str(app.HS(2));
            end
        end

        % Value changed function: HSEditField
        function HSEditFieldValueChanged(app, event)
            app.HS = str2double(strsplit(event.Value));
            app.XCoord = str2double(strsplit(app.XCoordinatesEditField.Value));
            if(length(app.XCoord) > 0 && length(app.HS)>0)
                app.hs1x1.Enable = true;
                app.hs1x1.Editable = true;
                app.hs1x1.Visible = true;
                app.x1HS1EditFieldLabel.Text = "a at x = " + num2str(app.XCoord(1)) + ", Hs = " + num2str(app.HS(1));
            end
            if(length(app.XCoord) >= 2 && length(app.HS)>0)
                app.hs1x2.Enable = true;
                app.hs1x2.Editable = true;
                app.hs1x2.Visible = true;
                x2HS1EditFieldLabel.Text ="a at x = " + num2str(app.XCoord(2)) + ", Hs =" + num2str(app.HS(1));
            end
            if(length(app.HS) >= 2 && length(app.XCoord)>0)
                app.hs2x1.Enable = true;
                app.hs2x1.Editable = true;
                app.hs2x1.Visible = true;
                x1HS1EditField_2Label.Text = "a at x = " + num2str(app.XCoord(1)) + ", Hs = " + num2str(app.HS(2));
            end
            if(length(app.HS) >=2 && length(app.XCoord)>=2)
                app.hs2x2.Enable = true;
                app.hs2x2.Editable = true;
                app.hs2x2.Visible = true;
                x2HS2EditFieldLabel.Text = "a at x = " + num2str(app.XCoord(2)) + ", Hs = " + num2str(app.HS(2));
            end
            
            
            
        end
    end