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Add querystring parameters to link_to
I'm having difficultly adding querystring parameters to link_to UrlHelper. I have an Indem>x m> view, for em>x m>ample, that has UI elements for sorting, filtering, and pagination (via will_paginate). The will_paginate plugin manages the intra-page persistence of querystring parameters correctly.
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What's the magic of “-” (a dash) in command-line parameters?
Em>x m>amples:
6 Answers
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callback to handle completion of pipe
I am using the following node.js code to download documents from some url and save it in the disk.
I want to be informed about when the document is downloaded. i have not seen any callback with pipe.Or, Is there any 'end' event that can be captured on completion of download ?
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How to add reference to a method parameter in javadoc?
Is there a way to add references to one or more of a method's parameters from the method documentation body?
Something like:
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Change UICollectionViewCell size on different device orientations
I am using an UICollectionView with UICollectionViewFlowLayout .
6 Answers
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Why can't I call read() twice on an open file?
For an em>x m>ercise I'm doing, I'm trying to read the contents of a given file twice using the read() method. Strangely, when I call it the second time, it doesn't seem to return the file content as a string?
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make arrayList.toArray() return more specific types
So, normally ArrayList.toArray() would return a type of Object[] ....but supposed it's an
Arraylist of object Custom , how do I make toArray() to return a type of Custom[] rather than Object[] ?
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Difference between validate(), revalidate() and invalidate() in Swing GUI
Swing components have multiple methods related to updates of screen layout, in particular:
2 Answers
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Why can I pass 1 as a short, but not the int variable i?
...second Write work but not the last? Is there a way I can allow all 3 of them and detect if it was 1, (int)1 or i passed in? And really why is one allowed but the last? The second being allowed but not the last really blows my mind.
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Why does writeObject throw java.io.NotSerializableEm>x m>ception and how do I fim>x m> it?
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The fields of your object have in turn their fields, some of which do not implement Serializable. In your case the offending class is TransformGroup. How to solve it?
if the class is yours, make it Serializable
if the class is 3rd party, but you don't need it in the serialized ...