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How do I make a textbox that only accepts numbers?
...
protected override void OnKeyPress(KeyPressEventArgs e)
{
base.OnKeyPress(e);
NumberFormatInfo fi = CultureInfo.CurrentCulture.NumberFormat;
string c = e.KeyChar.ToString();
if (char.IsDigit(c, 0))
return;
if ((SelectionStart == 0) &...
Java equivalent to #region in C#
... was going through all answers and figured since Android Studio is based on IntelliJ then this must be supported. good thing to point it out though!
– serine
Jan 20 '14 at 11:22
...
.NET console application as Windows service
...const string ServiceName = "MyService";
public class Service : ServiceBase
{
public Service()
{
ServiceName = Program.ServiceName;
}
protected override void OnStart(string[] args)
{
Program.Start(args);
}
prot...
How to set a Header field on POST a form?
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Yes you can serialize files into Base64 strings, perhaps very clumsy for huge files since Base64 can be quite bulky. But so is every serialization method.
– Felype
Jul 31 '15 at 17:13
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The order of elements in Dictionary
...s operations different time and space complexity compared to the hashtable-based Dictionary<K,V>. If users need an O(1) insert/delete hashtable structure and also want to iterate over elements in key-order then they should to dict.Keys.OrderBy( k => k ).Select( k => dict[k] ) instead (at...
How to fix the uninitialized constant Rake::DSL problem on Heroku?
...ake", "0.8.7"
2) Take out a hack that I had previously added to Rakefile based on Stack Overflow question Ruby on Rails and Rake problems: uninitialized constant Rake::DSL:
So, my Rakefile is now back to being the standard Rakefile for my app:
# Add your own tasks in files placed in lib/tasks...
Random / noise functions for GLSL
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Gold Noise
// Gold Noise ©2015 dcerisano@standard3d.com
// - based on the Golden Ratio
// - uniform normalized distribution
// - fastest static noise generator function (also runs at low precision)
float PHI = 1.61803398874989484820459; // Φ = Golden Ratio
float gold_noise(in ve...
How to send emails from my Android application?
...ailto protocol intent (which are email apps only) and constructs a chooser based on that list of activities and the original ACTION_SEND intent with the correct mime type.
Another advantage is that Skype is not listed anymore (which happens to respond to the rfc822 mime type).
...
Removing fields from struct or hiding them in JSON Response
...eople seem to miss that the OP asked for fields to be dynamically selected based on the caller-provided list of fields. You can't do this with the statically-defined json struct tag.
If what you want is to always skip a field to json-encode, then of course use json:"-" to ignore the field (also not...
Check if a variable is of function type
...there might be logged error messages). Note: Revision 3 added isFunctionD (based on only typeof == "function") - and it seems to be much faster than Underscore's "fast" version.
– Joel Purra
Feb 2 '12 at 18:35
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