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How to select distinct rows in a datatable and store into an array
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@Lijo, the ToTable(boolean, params string[] columnNames) method allows for multiple columns to be specified.
– Kristen Hammack
Aug 23 '18 at 20:48
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System.Net.WebException HTTP status code
...t ex.Status to get the WebExceptionStatus.
If you just want a descriptive string to log in case of a failure you can use the null-coalescing operator (??) to get the relevant error:
string status = (ex.Response as HttpWebResponse)?.StatusCode.ToString()
?? ex.Status.ToString();
If the except...
This Row already belongs to another table error when trying to add rows?
...lumn("ID", typeof(int));
DataColumn dcName = new DataColumn("Name", typeof(string));
dtSpecificOrders.Columns.Add(dtID);
dtSpecificOrders.Columns.Add(dcName);
DataRow[] orderRows = dt.Select("CustomerID = 2");
foreach (DataRow dr in orderRows)
{
DataRow myRow = dtSpecificOrders.NewRow(); // &...
Get the current fragment object
...r.onAttachFragment(fragment);
Toast.makeText(getApplicationContext(), String.valueOf(fragment.getId()), Toast.LENGTH_SHORT).show();
}
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What is the ellipsis (…) for in this method signature?
...nside the method is as if it were an array:
public void PrintWithEllipsis(String...setOfStrings) {
for (String s : setOfStrings)
System.out.println(s);
}
This method can be called as following:
obj.PrintWithEllipsis(); // prints nothing
obj.PrintWithEllipsis("first"); // prints "firs...
Pair/tuple data type in Go
...ng the final exercise of the Tour of Go , I decided I needed a queue of ( string , int ) pairs. That's easy enough:
3 Ans...
What is the best way to stop people hacking the PHP-based highscore table of a Flash game
... and the flash frontend. The checksum above was created by prepending the string "secret" to the score "500", and running it through md5sum.
Although this system will prevent a user from posting arbitrary scores, it does not prevent a "replay attack", where a user reposts a previously calculated s...
PHP shell_exec() vs exec()
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shell_exec returns all of the output stream as a string. exec returns the last line of the output by default, but can provide all output as an array specifed as the second parameter.
See
http://php.net/manual/en/function.shell-exec.php
http://php.net/manual/en/function.e...
How to get Url Hash (#) from server side
...won't send the hash to the server; so, the Uri.Fragment is always an empty string if you examine Request.Url.Fragment server-side (as per the replies above.)
– zcrar70
May 3 '11 at 18:50
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How can I get all constants of a type by reflection?
...ts and you can ignore IsInitOnly. I tried with different field types (e.g. String, Int32) to see if this made any difference but it did not.
– Mark Watts
May 5 '15 at 9:55
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