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How to create a custom attribute in C#
...gt;
/// blah blah code.
/// </summary>
[DataMember]
[StringLengthValidator(8, RangeBoundaryType.Inclusive, 8, RangeBoundaryType.Inclusive, MessageTemplate = "\"{1}\" must always have \"{4}\" characters.")]
public string Code { get; set; }
From the snippet above, one might...
How can I parse a JSON file with PHP? [duplicate]
... ' : ', $v;
}
To echo the statuses of each person, try this:
<?php
$string = file_get_contents("/home/michael/test.json");
if ($string === false) {
// deal with error...
}
$json_a = json_decode($string, true);
if ($json_a === null) {
// deal with error...
}
foreach ($json_a as $pers...
How to call Android contacts list?
...actData, null, null, null, null);
if (c.moveToFirst()) {
String name = c.getString(c.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
// TODO Whatever you want to do with the selected contact name.
}
}
break;
}
}
Full source code: tutorials...
No IUserTokenProvider is registered
... UserManager.UserTokenProvider = new DataProtectorTokenProvider<User, string>(provider.Create("UserToken"))
as IUserTokenProvider<User, string>;
My problem with this code solved.
Good luck friends.
s...
Convert.ChangeType() fails on Nullable Types
I want to convert a string to an object property value, whose name I have as a string. I am trying to do this like so:
6 An...
Spring Test & Security: How to mock authentication?
...ller {
@Secured("ROLE_MANAGER")
@GetMapping("/salute")
public String saluteYourManager(@AuthenticationPrincipal User activeUser)
{
return String.format("Hi %s. Foo salutes you!", activeUser.getUsername());
}
}
Here we have a get mapped function to the route /foo/salute ...
How do arrays in C# partially implement IList?
...ot covariant (and can't be safely), array covariance allows this to work:
string[] strings = { "a", "b", "c" };
IList<object> objects = strings;
... which makes it look like typeof(string[]) implements IList<object>, when it doesn't really.
The CLI spec (ECMA-335) partition 1, sectio...
How can I present a file for download from an MVC controller?
...r the file exists or you create it on the fly.
public ActionResult GetPdf(string filename)
{
return File(filename, "application/pdf", Server.UrlEncode(filename));
}
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Why does “,,,” == Array(4) in Javascript?
...
Because the right hand operand is converted to a string and the string representation of Array(4) is ,,,:
> Array(4).toString()
",,,"
If you use the array constructor function and pass a number, it sets the length of the array to that number. So you can say you hav...
How to add a new audio (not mixing) into a video using ffmpeg?
...eo length.
If you want full audio in video remove -shortest from the cmd.
String[] cmd = new String[]{"-i", selectedVideoPath,"-i",audiopath,"-map","1:a","-map","0:v","-codec","copy", ,outputFile.getPath()};
private void execFFmpegBinaryShortest(final String[] command) {
final F...