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How to write an XPath query to match two attributes?
...t;X>
<Y ATTRIB1=attrib1_value ATTRIB2=attrib2_value/>
</X>
string xPath="/" + X + "/" + Y +
"[@" + ATTRIB1 + "='" + attrib1_value + "']" +
"[@" + ATTRIB2 + "='" + attrib2_value + "']"
XPath Testbed:
http://www.whitebeam.org/library/guide/TechNotes/xpathtestbed.rhtm
...
C++ unordered_map using a custom class type as the key
...h values. For example, assuming a key-type like this:
struct Key
{
std::string first;
std::string second;
int third;
bool operator==(const Key &other) const
{ return (first == other.first
&& second == other.second
&& third == other.thir...
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...
How to check if a process id (PID) exists
...e process ID column with no header. The quotes are necessary for non-empty string operator -n to give valid result.
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Can an Option in a Select tag carry multiple values?
... (3 years after answering) to put both values into JSON format (using JSON.stringify()) because of a complaint that my proof-of-concept answer "could confuse a newbie developer."
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How to clone a case class instance and change just one field in Scala?
...e a method on Persona to simplify usage:
case class Persona(
svcName : String,
svcId : String,
sentMsgs : Set[String]
) {
def plusMsg(msg: String) = this.copy(sentMsgs = this.sentMsgs + msg)
}
then
val newPersona = existingPersona plusMsg newMsg
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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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How do you convert a DataTable into a generic list?
...t.Rows
select new Employee
{
_FirstName = row["FirstName"].ToString(),
_LastName = row["Last_Name"].ToString()
}).ToList();
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Parallel.ForEach vs Task.Run and Task.WhenAll
...combine both options by writing:
await Task.Run(() => Parallel.ForEach(strings, s =>
{
DoSomething(s);
}));
Note that this can also be written in this shorter form:
await Task.Run(() => Parallel.ForEach(strings, DoSomething));
...
Is there a pattern for initializing objects created via a DI container
....
Thus, the interface should simply be:
public interface IMyIntf
{
string RunTimeParam { get; }
}
Now define the Abstract Factory:
public interface IMyIntfFactory
{
IMyIntf Create(string runTimeParam);
}
You can now create a concrete implementation of IMyIntfFactory that creates con...