StackOverflow2013

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plurals

PO
primarykey
Id
596601
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2009-02-27T20:41:58.343
FavoriteCount
0
LastActivityDate
2009-02-27T22:00:36.783
LastEditDate
2009-02-27T22:00:36.783
LastEditorUserId
71421
OwnerUserId
71421
ParentId
596429
PostTypeId
2
Score
11
ViewCount
0
LastEditorDisplayName
Amanda S
text
Body
It looks like you can listen to the <code>JFileChooser</code> for a change on the <code>FILE_FILTER_CHANGED_PROPERTY</code> property, then change the extension of the selected file appropriately using <code>setSelectedFile()</code>. <hr> EDIT: You're right, this solution doesn't work. It turns out that when the file filter is changed, the selected file is removed if its file type doesn't match the new filter. That's why you're getting the <code>null</code> when you try to <code>getSelectedFile()</code>. Have you considered adding the extension later? When I am writing a <code>JFileChooser</code>, I usually add the extension after the user has chosen a file to use and clicked "Save": <pre><code>if (result == JFileChooser.APPROVE_OPTION) { File file = fileChooser.getSelectedFile(); String path = file.getAbsolutePath(); String extension = getExtensionForFilter(fileChooser.getFileFilter()); if(!path.endsWith(extension)) { file = new File(path + extension); } } </code></pre> <hr> <pre><code>fileChooser.addPropertyChangeListener(JFileChooser.FILE_FILTER_CHANGED_PROPERTY, new PropertyChangeListener() { public void propertyChange(PropertyChangeEvent evt) { FileFilter filter = (FileFilter)evt.getNewValue(); String extension = getExtensionForFilter(filter); //write this method or some equivalent File selectedFile = fileChooser.getSelectedFile(); String path = selectedFile.getAbsolutePath(); path.substring(0, path.lastIndexOf(".")); fileChooser.setSelectedFile(new File(path + extension)); } }); </code></pre>
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Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POadjust selected File to FileFilter in a JFileChooser
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 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USAmanda S
UserOwnerUserId
1. USAmanda S
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PostLinksPostIdRelatedPostId
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PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. POadjust selected File to FileFilter in a JFileChooser
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PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. VO
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2. VO
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3. VO
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CommentsPostId
1. This table or related slice is empty.

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