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Check if application is on its first run [duplicate]
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The accepted answer doesn't differentiate between a first run and subsequent upgrades. Just se...
How to handle click event in Button Column in Datagridview?
...f
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Update 1 - Custom Event
If you wanted to have a little bit of fun, you can add your own event to be raised whenever a button is clicked on the DataGrid. You can't add it to the DataGrid itself, without getting messy with inheritance etc., but you can add a custom event to your form and...
Suppressing “warning CS4014: Because this call is not awaited, execution of the current method conti
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You can create an extension method that will prevent the warning. The extension method can be ...
How do I count the number of occurrences of a char in a String?
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Easiest way. Clever one. And it works on Android, where there is no StringUtils class
– Jose_GD
Nov...
Why do we need Abstract factory design pattern?
...t doesn't know the implementation details?
– kiwicomb123
Oct 26 '18 at 10:33
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Why do C and C++ compilers allow array lengths in function signatures when they're never enforced?
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It is a quirk of the syntax for passing arrays to functions.
Actually it is not possible to pass an array in C. If you write syntax that looks like it should pass the array, what actually happens is that a pointer to the first element of the array is passed instead.
Since ...
Decimal separator comma (',') with numberDecimal inputType in EditText
...se an EditText with android:inputType="numberDecimal" and android:digits="0123456789.,".
Then add a TextChangedListener to the EditText with the following afterTextChanged:
public void afterTextChanged(Editable s) {
double doubleValue = 0;
if (s != null) {
try {
double...
How do I initialize an empty array in C#?
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In .NET 4.6 the preferred way is to use a new method, Array.Empty:
String[] a = Array.Empty&l...
How to convert a byte array to a hex string in Java?
...is the function I currently use:
private static final char[] HEX_ARRAY = "0123456789ABCDEF".toCharArray();
public static String bytesToHex(byte[] bytes) {
char[] hexChars = new char[bytes.length * 2];
for (int j = 0; j < bytes.length; j++) {
int v = bytes[j] & 0xFF;
he...
How can I replace every occurrence of a String in a file with PowerShell?
...d of Out-File yuou get a warning like "The process cannot access the file '123.csv' because it is being used by another process.".
– Iain Samuel McLean Elder
Sep 17 '13 at 14:36
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