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html select only one checkbox in a group

So how can I only allow a user to select only one checkbox? 16 Answers 16 ...
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Converting pixels to dp

... @MuhammadBabar This is because 160 dpi (mdpi) is the baseline desity from which other densities are calculated. hdpi for instance is considered to be 1.5x the density of mdpi which is really just another way of saying 240 dpi. See Zsolt Safrany's answer below for all densities. ...
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How to implement “select all” check box in HTML?

... Using jQuery: // Listen for click on toggle checkbox $('#select-all').click(function(event) { if(this.checked) { // Iterate each checkbox $(':checkbox').each(function() { this.checked = true; }); } else { ...
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Do threads have a distinct heap?

...Each thread has a private stack, which it can quickly add and remove items from. This makes stack based memory fast, but if you use too much stack memory, as occurs in infinite recursion, you will get a stack overflow. Since all threads share the same heap, access to the allocator/deallocator mu...
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CSS selector for first element with class

I have a bunch of elements with a class name red , but I can't seem to select the first element with the class="red" using the following CSS rule: ...
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Oracle SQL, concatenate multiple columns + add text

... select 'i like' || type_column || ' with' ect.... share | improve this answer | follow ...
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Windows: XAMPP vs WampServer vs EasyPHP vs alternative [closed]

... Great :-) Glad to see you agree on learning a lot from the time you invested ! – Pascal MARTIN Apr 7 '11 at 21:42 49 ...
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What is the difference between Views and Materialized Views in Oracle?

... you. The downside of a view is that its performance depends on how good a select statement the view is based on. If the select statement used by the view joins many tables, or uses joins based on non-indexed columns, the view could perform poorly. Materialized views They are similar to regular vi...
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Visual Studio opens the default browser instead of Internet Explorer

...er: 1) Right click on a .aspx page in your solution explorer 2) Select the "browse with" context menu option 3) In the dialog you can select or add a browser. If you want Firefox in the list, click "add" and point to the firefox.exe filename 4) Click the "Set as Default...
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How do I return to an older version of our code in Subversion?

... If you are using TortoiseSVN, right-click the file select Merge, then Merge a Range of Revisions. In the log box type in 140-150 and click the Reverse Checkbox. After that, commit as usual. This will perform the same operation as Jon's example. – DavGarc...