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How to empty a list in C#?
...you mean a List<T>, then the Clear method is what you want:
List<string> list = ...;
...
list.Clear();
You should get into the habit of searching the MSDN documentation on these things.
Here's how to quickly search for documentation on various bits of that type:
List Class - provid...
sql “LIKE” equivalent in django query
..._contains or __icontains (case-insensitive):
result = table.objects.filter(string__contains='pattern')
The SQL equivalent is
SELECT ... WHERE string LIKE '%pattern%';
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What is the equivalent of “!=” in Excel VBA?
...
Just a note. If you want to compare a string with "" ,in your case, use
If LEN(str) > 0 Then
or even just
If LEN(str) Then
instead.
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How to Validate a DateTime in C#?
...x.Text, out value))
{
startDateTextox.Text = DateTime.Today.ToShortDateString();
}
Reasons for preferring this approach:
Clearer code (it says what it wants to do)
Better performance than catching and swallowing exceptions
This doesn't catch exceptions inappropriately - e.g. OutOfMemoryExcep...
Which is better, return “ModelAndView” or “String” on spring3 controller
...troller in pre-Spring 2.0. Now you can combine the Model parameter and the String return value, but the old approach is still valid.
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Testing if object is of generic type in C#
...type.BaseType;
}
return false;
}
static void Main(string[] args)
{
// True
Console.WriteLine(IsInstanceOfGenericType(typeof(List<>),
new List<string>()));
// False
Console.Write...
How to strip HTML tags from string in JavaScript? [duplicate]
How can I strip the HTML from a string in JavaScript?
4 Answers
4
...
Android 4.1: How to check notifications are disabled for the application?
... on 5/7/15.
*/
public class NotificationsUtils {
private static final String CHECK_OP_NO_THROW = "checkOpNoThrow";
private static final String OP_POST_NOTIFICATION = "OP_POST_NOTIFICATION";
public static boolean isNotificationEnabled(Context context) {
AppOpsManager mAppOps = ...
Android: How can I validate EditText input?
...ged. But you could directly check the contents of the EditText boxes like
String txt1String = txt1.getText().toString();
// Validate txt1String
in the same method. I hope I'm clear and if I am, it helps! :)
EDIT: For a cleaner approach refer to Christopher Perry's answer below.
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How to save a PNG image server-side, from a base64 data string
...rt canvas drawings to PNG images.
What I need now is to turn those base64 strings that this tool generates, into actual PNG files on the server, using PHP.
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