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C# equivalent of the IsNull() function in SQL Server
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return Expression;
}
}
//When Expression is string (Can not send Null value in string Expression
public static string isEmpty(string Expression, string Value)
{
if (Expression == "")
{
return Value;
}
else
{
...
Get Android .apk file VersionName or VersionCode WITHOUT installing apk
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final PackageManager pm = getPackageManager();
String apkName = "example.apk";
String fullPath = Environment.getExternalStorageDirectory() + "/" + apkName;
PackageInfo info = pm.getPackageArchiveInfo(fullPath, 0);
Toast.makeText(this, "VersionCode : " + info.versi...
datetime.parse and making it work with a specific format
...eed to parse other formats, you can check out the Standard DateTime Format Strings.
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Find and kill a process in one line using bash and regex
... the list of all the processes.
The grep filters that based on your search string, [p] is a trick to stop you picking up the actual grep process itself.
The awk just gives you the second field of each line, which is the PID.
The $(x) construct means to execute x then take its output and put it on th...
How to get the first word of a sentence in PHP?
I want to extract the first word of a variable from a string. For example, take this input:
22 Answers
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Sass negative variable value?
...mber}px.
This doesn’t actually create a number! It creates an unquoted string
that looks like a number, but won’t work with any number operations or
functions. Try to make your math unit-clean so that $number already
has the unit px, or write $number * 1px.
Source
Therefore I bel...
Why are arrays covariant but generics are invariant?
...exactly the type Object[]. One could not, for example, shuffle an array of strings.
Therefore, both Java and C# treat array types covariantly. For instance, in C# string[] is a subtype of object[], and in Java String[] is a subtype of Object[].
This answers the question "Why are arrays covari...
Java - escape string to prevent SQL injection
...in java and am finding it very difficult to work with the the "replaceAll" string function. Ultimately I need a function that will convert any existing \ to \\ , any " to \" , any ' to \' , and any \n to \\n so that when the string is evaluated by MySQL SQL injections will be blocked.
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Java; String replace (using regular expressions)?
As part of a project for school, I need to replace a string from the form:
12 Answers
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C# list.Orderby descending
...problem when a small and capital letters exist, so to solve it, I used the string comparer.
allEmployees.OrderBy(employee => employee.Name,StringComparer.CurrentCultureIgnoreCase)
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