How can I send a wrndlg message if the user hasn´t filled an individual cell in a uitable in GUIDE?

2 次查看（过去 30 天）

Alfonso Rodriguez 2016-9-19

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/303654-how-can-i-send-a-wrndlg-message-if-the-user-hasn-t-filled-an-individual-cell-in-a-uitable-in-guide

评论： Alfonso Rodriguez 2016-9-19

I want to tell the user to go back and fill every cell in the Uitable only if there is an empty cell in a Uitable in Matlab GUIDE. Is the isempty function helpful?

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Walter Roberson 2016-9-19

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/303654-how-can-i-send-a-wrndlg-message-if-the-user-hasn-t-filled-an-individual-cell-in-a-uitable-in-guide#answer_235304

在 MATLAB Online 中打开

data = get(handles.TheUiTableTagName, 'data');
if iscell(data)
  if any(cellfun(@isempty, data(:)))
    give the warning
  else
    %nothing is empty
  end
else
  %uitable data was coded as a numeric array rather than a cell array
  %and in numeric arrays, cells are never empty. If some of your columns are not
  %intended to be strings, they might have entries that _look_ empty but are not
  %actually empty. So.... what do you want to do? Besides making sure that you
  %do not accidentally write a numeric array as the uitable data, that is?
end