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explicit casting from super class to subclass
...try and cast objects in different inheritence hierarchies (cast a Dog to a String for example) then the compiler will throw it back at you because it knows that could never possibly work.
Because you're essentially just stopping the compiler from complaining, every time you cast it's important to c...
Python's most efficient way to choose longest string in list?
...nd a way to test if the list item currently being evaluated is the longest string contained in the list. And I am using Python 2.6.1
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MySQL integer field is returned as string in PHP
...from a MySQL database using PHP the datatype will always be converted to a string. You can convert it back to an integer using the following code:
$id = (int) $row['userid'];
Or by using the function intval():
$id = intval($row['userid']);
...
Get value from SimpleXMLElement Object
...
You have to cast simpleXML Object to a string.
$value = (string) $xml->code[0]->lat;
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How to test if a string is JSON or not?
I have a simple AJAX call, and the server will return either a JSON string with useful data or an error message string produced by the PHP function mysql_error() . How can I test whether this data is a JSON string or the error message.
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How can I get a count of the total number of digits in a number?
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Without converting to a string you could try:
Math.Ceiling(Math.Log10(n));
Correction following ysap's comment:
Math.Floor(Math.Log10(n) + 1);
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Multiple file-extensions searchPattern for System.IO.Directory.GetFiles
...ollection of file names that
/// meet given filter</returns>
public string[] getFiles(string SourceFolder, string Filter,
System.IO.SearchOption searchOption)
{
// ArrayList will hold all file names
ArrayList alFiles = new ArrayList();
// Create an array of filter string
string[] Multip...
Writing/outputting HTML strings unescaped
...
Supposing your content is inside a string named mystring...
You can use:
@Html.Raw(mystring)
Alternatively you can convert your string to HtmlString or any other type that implements IHtmlString in model or directly inline and use regular @:
@{ var myHtml...
ValueError: invalid literal for int() with base 10: ''
... asking how one could prevent a ValueError when you call int() on an empty string. "Use float() instead" doesn't solve that problem. You still get a ValueError.
– Kevin
May 1 '18 at 18:50
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MetadataException: Unable to load the specified metadata resource
...ption on instantiating my generated ObjectContext class. The connection string in App.Config looks correct - hasn't changed since last it worked - and I've tried regenerating a new model (edmx-file) from the underlying database with no change.
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