My modal dialog box does not prevent interactions with a MATLAB app (made by App Designer) window

17 次查看（过去 30 天）
CreLox
CreLox 2019-6-25
编辑： CreLox 2019-6-25
I have a custom app designed in App Designer, which is composed of one input box (accepting data) and a confirm button. Pushing the confirm button will execute a callback function, which will check whether the box is empty first:
function ConfirmButtonPushed(app, event)
if isempty(app.Databox.Value)
errordlg('No data supplied.', 'Input Error', 'modal');
return;
else
% Some actions to process the data
end
end
If the box is empty, the user is supposed to acknowledge the error message before going back to interact with the app again. However, the modal error dialog does not prevent interactions with the app window (It does prevent interactions with the main MATLAB command line window). Any clue?

请先登录，再回答此问题。

采纳的回答

Geoff Hayes
Geoff Hayes 2019-6-25
CreLox - try using uialert instead. This may work assuming that your app has been created with the uifigure function.
  1 个评论
CreLox
CreLox 2019-6-25
It worked. Thank you! The only issue with this workaround is that a uialert dialog window is nested inside the app window and seems to have a minimal width and height, which may not fit into the app window.

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Develop Apps Using App Designer 的更多信息

标签

产品


版本

R2019a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by