error assign value in field text app designer

2 次查看（过去 30 天）
piero
piero 2023-8-25
回答： Dinesh 2023-9-6
app.LastDateRicalcoloEditField.Value="g";
Property assignment is not allowed when the object is empty. Use subscripted assignment to create an array
element.
Error in Predator_Equity/PortfolioTabButtonDown (line 354)
app.LastDateRicalcoloEditField.Value="g";
Error in matlab.apps.AppBase>@(source,event)executeCallback(ams,app,callback,requiresEventData,event) (line 62)
newCallback = @(source, event)executeCallback(ams, ...
Error using matlab.ui.internal.componentframework.WebComponentController/handleClientEvent
Error while evaluating Tab ButtonDownFcn.

请先登录，再回答此问题。

回答（1 个）

Dinesh
Dinesh 2023-9-6
Hi Piero.
The error message you're seeing, "Property assignment is not allowed when the object is empty", typically arises when you're trying to set a property on an object that hasn't been initialized or has been accidentally deleted.
To fix the issue:
  1. Ensure "LastDateRicalcoloEditField" exists and is correctly initialized.
  2. Check the scope and structure of the "app" variable within the callback.
  3. Ensure that no unintentional deletions or modifications of UI components are happening within callbacks or other parts of your code.

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

Community Treasure Hunt

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

Start Hunting!

Translated by