MATLAB: How to disable Edit Field (Text) in App Designer

MATLAB

I would like to know how to set "Edit Field (Text)" disable to edit in App Designer. I want to change the editable status able/disable via Switch On/Off.

Best Answer

Here is an example to show how to control Editable about "Edit Field (Text)".

     function SwitchValueChanged(app, event)
              value = app.Switch.Value;
              if ( strcmpi(value,'On') )
                  app.VelocityEditField.Enable = 'On'
                  app.TemperatureEditField.Editable = 'On'
  %                 app.LoadEditField.Editable = 'On'
              else
                  app.VelocityEditField.Enable = 'Off'
                  *app.TemperatureEditField.Editable = 'Off'*
  %                 app.LoadEditField.Editable = 'Off'
              end
          end

This is the captured image to show the result of the above example. It is set so that editing is not possible at Temperature where Editable is off.

Related Solutions

MATLAB: How to enable a button after another button’s procedure has completed in App Designer

Attached is a simple app that accomplishes this as an example. The relevant code is in the first button's callback:

function computeFunction(app, event)
    set(app.NotComputingLabel, 'Text', 'Computing...')
      % your computation
      pause(3);
      set(app.NotComputingLabel, 'Text', 'Done Computing!')
      set(app.AccessibleAfterComputeButton, 'Enable', 'on')
  end

You can set the second button to be disabled by selecting it in the Design View and changing the "Enable" property on the right, in the "Button Properties" section.

MATLAB: Is there a way to make the label of a “Edit Field” in an app generated by AppDesigner to use LaTeX as an interpreter

As of MATLAB R2018b, there is no "interpreter" property for labels for the "Edit Field" component in AppDesigner. However you can use the following two workarounds:

1. You could generate the formatted text elsewhere and copy and paste it into the label field. Try it with this: β

2. You can also use the "char" command to create special characters. This will create the same string for the "Edit Field" label:

     app.EditFieldLabel.Text = char(946);

Here "app.EditFieldLabel" corresponds to the label of the "Edit Field" component in the app and "946" is the unicode value for representing " β ". You can put the above command inside the "startup.m" function of the app so that the label gets set when the app is run.

Best Answer

Related Solutions

MATLAB: How to enable a button after another button’s procedure has completed in App Designer

MATLAB: Is there a way to make the label of a “Edit Field” in an app generated by AppDesigner to use LaTeX as an interpreter

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