that code does not work well and every time give the same number 5 times every time and not indexd to be used in an another place thank you

Hi @m.montaser sabry,

To achieve user input directly within MATLAB App Designer while ensuring that each value is unique, you can utilize a callback function that triggers when the user modifies the input field. Below is a revised approach that incorporates this functionality:

properties (Access = private) x % Array to store input values no = 5; % Number of inputs end

% Callback function for the input field
function refindexEditFieldValueChanged(app, event)
  persistent index; % To keep track of the current input index
  if isempty(index)
      index = 1; % Initialize index
      app.x = zeros(app.no, 1); % Preallocate array
  end

    % Store the input value
    app.x(index) = str2double(app.refindexEditField.Value);
    index = index + 1; % Increment index

    % Reset input field if all values are collected
    if index > app.no
        app.refindexEditField.Value = '';
        index = 1; % Reset index for next round
        plot(app.UIAxes, (1:app.no)', app.x, '-r'); % Plot the values
    end
  end

In this code, the refindexEditFieldValueChanged function is triggered whenever the user changes the value in the refindexEditField. The input values are stored in the x array, and once the specified number of inputs is reached, the input field is reset, and the values are plotted. This method ensures that all interactions remain within the app, providing a seamless user experience.