AppDesigner UIListBox Multi-Select Corrupts .MLAPP File
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I'm mostly posting this more than asking a question just so other people don't lose days/weeks of work like I did.
If you add the uilistbox control in AppDesigner, then make it multi-select, there doesn't appear to be a way to make a default multiple selection. However, if you switch to code view, you can manually edit the uilistbox "Value" property and type in as many selections as you like. Everything looks great at this point, and it even has the correct selection value at startup.
Here's the bug: after startup, the uilistbox has no visible selection, and cannot be multi-selected. Here's the potentially serious: if you close AppDesigner at this point, your .MLAPP file becomes quite corrupt, and I haven't found a way to get it back.
The obvious workaround is to programmatically set the default selection in the startupFcn, rather than in the object properties.
To make it a question so I don't get flamed: Does anybody know a way to "hack" the corrupt .MLAPP file back to an AppDesigner-editable state?
3 个评论
Christopher
2018-6-26
Unfortunately I cannot share the document. But I will go for the R2017b solution and try to fix it by loading the file there. Thank you for your help.
回答(2 个)
Greg
2018-6-26
1 个评论
Pierre Puchaud
2019-12-18
Any clue ?
I have corrupted .mlapp file from 2018a version that i cannot open on 2019b.
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