how to restore the original content of an edit control
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- When I start editing a value in an edit control and change my mind, is there a way to restore the original content? Neither Esc nor Ctrl+Z seems to work.
- When I submit the edited value to a callback and the callback figures out that the content is invalid, is there a way to restore the original valid content (other than fiddling with UserData)?
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Walter Roberson
2013 年 12 月 12 日
No, the Uicontrol have no "memory". If you want to restore the content, you need to save the content before the potential modification, and then set() it back into place.
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