tooltip in App Designer

Question

Pappu Murthy 2018-11-2

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/427588-tooltip-in-app-designer

评论： Cris LaPierre 2019-11-15

In my App designer for one of the panels I defined a tooltip. Now I want to get rid of it. Everytime i highlight and get rid of it in Code design view, I get a long series of read error messages but the tool string does not get removed. I can't go into code view and delete the line for tooltip string either as it is grayed out. So my question is how do I completely get rid of it without deleting the panel altogether and start over again?

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Pappu Murthy 2018-11-23

Ok I tried to duplicate the error today. I createds a small test app. I have one panel and I created a tool strip string in it. It works normally. Now after saving my app closing it and open again. I try now to go to the panel component , Interactivity, and check the tool strip and try to remove all the contents in it. Here is the series of errors I noticed in my command window.

Warning: Error occurred while executing the listener callback for event GuiEvent defined for class

appdesigner.internal.componentview.DesignTimeComponentProxyView:

Error setting property 'Tooltip' of class 'Panel':

UIStrings data type does not support numeric values.

Error in matlab.ui.internal.DesignTimeGBTComponentController/handleDesignTimePropertyChanged (line 157)

obj.Model.(updatedProperty) = updatedValue;

Error in matlab.ui.internal.DesignTimePanelController/handleDesignTimePropertyChanged (line 54)

handleDesignTimePropertyChanged@matlab.ui.internal.DesignTimeGBTComponentController(obj, peerNode, data);

Error in matlab.ui.internal.DesignTimeGBTComponentController/handleDesignTimePropertiesChanged (line 123)

obj.handleDesignTimePropertyChanged(peerNode, propertySetData);

Error in matlab.ui.internal.DesignTimeGbtParentingController/handleDesignTimePropertiesChanged (line 73)

handleDesignTimePropertiesChanged@matlab.ui.internal.DesignTimeGBTComponentController(obj, peerNode, valuesStruct);

Error in appdesigner.internal.controller.DesignTimeController/handlePeerNodePropertiesSet (line 351)

obj.handleDesignTimePropertiesChanged(src, valuesStruct);

Error in appdesigner.internal.controller.DesignTimeController/handleGUIEvent (line 326)

obj.handlePeerNodePropertiesSet(src, filteredValuesStruct);

Error in appdesigner.internal.controller.DesignTimeController>@(src,event)handleGUIEvent(obj,src,event)

Error in appdesservices.internal.interfaces.view.AbstractProxyView/notify (line 117)

obj.notify@handle(varargin{:});

Error in appdesservices.internal.peermodel.PeerNodeProxyView/handlePropertiesSetFromClient (line 268)

notify(obj, 'GuiEvent', eventData);

Error in appdesservices.internal.peermodel.PeerNodeProxyView>@(varargin)obj.handlePropertiesSetFromClient(varargin{:}) (line 81)

obj.PropertiesSetListener = addlistener(obj.PeerNode, 'propertiesSet', @obj.handlePropertiesSetFromClient);

Error in hgfeval (line 62)

feval(fcn{1},varargin{:},fcn{2:end});

Error in javaaddlistener>cbBridge (line 52)

hgfeval(response, java(o), e.JavaEvent)

Error in javaaddlistener>@(o,e)cbBridge(o,e,response) (line 47)

@(o,e) cbBridge(o,e,response));

Cris LaPierre 2018-11-23

在 MATLAB Online 中打开

What are you setting as the tip? I see this in your error messages:

Error setting property 'Tooltip' of class 'Panel':
UIStrings data type does not support numeric values.

Pappu Murthy 2018-11-23

在 MATLAB Online 中打开

I am just setting a 'string' as Tool tip and it shows correctly. But when I try to delete it by 'highlighting' it and 'backspace' it gives all those errors.

here is the complete code:

classdef MyTest2 < matlab.apps.AppBase
    % Properties that correspond to app components
    properties (Access = public)
        UIFigure      matlab.ui.Figure
        TestingPanel  matlab.ui.container.Panel
        GOButton      matlab.ui.control.Button
    end
    % App initialization and construction
    methods (Access = private)
        % Create UIFigure and components
        function createComponents(app)
            % Create UIFigure
            app.UIFigure = uifigure;
            app.UIFigure.Position = [100 100 640 480];
            app.UIFigure.Name = 'UI Figure';
            % Create TestingPanel
            app.TestingPanel = uipanel(app.UIFigure);
            app.TestingPanel.Tooltip = {'adfdaf'; ''};
            app.TestingPanel.Title = 'Testing..';
            app.TestingPanel.FontWeight = 'bold';
            app.TestingPanel.FontSize = 16;
            app.TestingPanel.Position = [51 226 260 221];
            % Create GOButton
            app.GOButton = uibutton(app.TestingPanel, 'push');
            app.GOButton.Position = [80 123 100 22];
            app.GOButton.Text = 'GO';
        end
    end
    methods (Access = public)
        % Construct app
        function app = MyTest2
            % Create and configure components
            createComponents(app)
            % Register the app with App Designer
            registerApp(app, app.UIFigure)
            if nargout == 0
                clear app
            end
        end
        % Code that executes before app deletion
        function delete(app)
            % Delete UIFigure when app is deleted
            delete(app.UIFigure)
        end
    end
end

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Answer 1

Cris LaPierre 2018-11-23

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/427588-tooltip-in-app-designer#answer_348567

编辑：Cris LaPierre 2018-11-23

I see it now. This looks like a bug to me. I'll report it. If you do not want the tooltip to appear, the best workaround I can think of is to add the following to your startupFcn Callback.

app.Panel.Tooltip = '';

Of course, replace Panel with whatever you named it.

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Walter Roberson 2019-2-7

hasproperty() before doing the assignment .

Daniel Bailey 2019-4-12

编辑：Daniel Bailey 2019-4-12

@Jake Shea & @Robert:

As far as backwards compatibility goes. I was able to remove blank tooltips from the code by opening it in a version that predates 'Tooltips' release.

To be exact with what I did:

Steps 1-3 completed in MATLAB 2019a

1) Deleted all Tooltip text

2) Save Copy As

3) Save as type: MATLAB 2017b APP (*.mlapp)

Steps 4-5 completed in MATLAB 2017b

4) Opened MATLAB 2017b

5) Right clicked to open *.mlapp file

At this point all of the tooltips had dissapeared from the code.

Interestingly enough, only saving the file as an earlier version did NOT fix the problem. Only at the point that the code was opened in app designer did the app.*.Tooltip = {''}; code dissapear.

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