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Default text which won't be shown in drop-down list
I have a select which initially shows Select language until the user selects a language. When the user opens the select, I don't want it to show a Select language option, because it's not an actual option.
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Why did Bootstrap 3 switch to box-sizing: border-box?
...box, making for easier sizing options and an enhanced grid system.
Personally I think most benefits go to the grid system. In Twitter's Bootstrap all grids are fluid. Columns are defined as percentage of the total width. But the gutter have a fixed width in pixels. By default a padding of 15px on ...
What's the best practice to round a float to 2 decimals? [duplicate]
...tatistics in Java 2 years ago and I still got the codes of a function that allows you to round a number to the number of decimals that you want. Now you need two, but maybe you would like to try with 3 to compare results, and this function gives you this freedom.
/**
* Round to certain number of ...
Creating a comma separated list from IList or IEnumerable
...;T> source)
{
return new List<T>(source).ToArray();
}
Then call it like this:
IEnumerable<string> strings = ...;
string[] array = Helpers.ToArray(strings);
You can then call string.Join. Of course, you don't have to use a helper method:
// C# 3 and .NET 3.5 way:
string joine...
Function vs. Stored Procedure in SQL Server
... environmental changes to SQL Server (i.e., no INSERT or UPDATE statements allowed).
A function can be used inline in SQL statements if it returns a scalar value or can be joined upon if it returns a result set.
A point worth noting from comments, which summarize the answer. Thanks to @Sean K Ande...
How do I convert Long to byte[] and back in java
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public byte[] longToBytes(long x) {
ByteBuffer buffer = ByteBuffer.allocate(Long.BYTES);
buffer.putLong(x);
return buffer.array();
}
public long bytesToLong(byte[] bytes) {
ByteBuffer buffer = ByteBuffer.allocate(Long.BYTES);
buffer.put(bytes);
buffer.flip();//need flip ...
Java system properties and environment variables
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Finally, it's how the variables are added and the scope of the variables.
– Praveen Sripati
Aug 14 '11 at 12:33
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Javascript call() & apply() vs bind()?
I already know that apply and call are similar functions which set this (context of a function).
22 Answers
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notifyDataSetChanged example
...tion.)
Create your own class derived from BaseAdapter and ListAdapter that allows changing of the underlying List data structure.
Use the notifyDataSetChanged() every time the list is updated. To call it on the UI-Thread, use the runOnUiThread() of Activity.
Then, notifyDataSetChanged() will work.
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Rails 3: “field-with-errors” wrapper changes the page appearance. How to avoid this?
...tag.html_safe would rais an error. Putting it in "#{html_tag}" implicitly calls html_tag.to_s, which hopefully will return a string, which will then be able to respond to html_safe
– sockmonk
Nov 4 '13 at 21:52
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