大约有 2,600 项符合查询结果（耗时：0.0163秒） [XML]
Most efficient way to check for DBNull and then assign to a variable?
...ert(Of Integer)(oRow("Value")), iDefault)
oSomeObject.StringMember = If(TryCast(oRow("Name"), String), sDefault)
Function TryConvert(Of T As Structure)(ByVal obj As Object) As T?
If TypeOf obj Is T Then
Return New T?(DirectCast(obj, T))
Else
Return Nothing
End If
End Fun...
Use a LIKE statement on SQL Server XML Datatype
...
Yet another option is to cast the XML as nvarchar, and then search for the given string as if the XML vas a nvarchar field.
SELECT *
FROM Table
WHERE CAST(Column as nvarchar(max)) LIKE '%TEST%'
I love this solution as it is clean, easy to remembe...
getSupportActionBar from inside of Fragment ActionBarCompat
...l have a valid activity accessible through getActivity().
You'll need to cast it to an ActionBarActivity then make the call to getSupportActionBar().
((AppCompatActivity)getActivity()).getSupportActionBar().setSubtitle(R.string.subtitle);
You do need the cast. It's not poor design, it's backwar...
Nullable type issue with ?: Conditional Operator
...ving that:
First is to make null compatible with DateTime (for instance, cast null to DateTime? as the gentleman with 70 upvotes suggests, or cast null to Object or to ValueType).
The second is to make the DateTime compatible with null (for instance, cast DateTime to DateTime?).
...
Simplest way to do a recursive self-join?
...can preserve the tree order:
WITH q AS
(
SELECT m.*, CAST(ROW_NUMBER() OVER (ORDER BY m.PersonId) AS VARCHAR(MAX)) COLLATE Latin1_General_BIN AS bc
FROM mytable m
WHERE ParentID IS NULL
UNION ALL
SELECT m.*, q.bc + '.' + CAST(ROW_NUMBER() ...
How to change shape color dynamically?
...
I am getting java.lang.ClassCastException: android.graphics.drawable.GradientDrawable cannot be cast to android.graphics.drawable.ShapeDrawable when trying this suggestion.
– prolink007
Aug 15 '13 at 18:37
...
What is a Windows Handle?
... name)
{
Widget *w;
w = findWidget(name);
return reinterpret_cast<void *>(w);
}
typedef void * HANDLE;
HANDLE GetWidget (std::string name)
{
Widget *w;
w = findWidget(name);
return reinterpret_cast<HANDLE>(w);
}
The first example exposes the internal deta...
How to override equals method in Java
...People or a childclass
People thatPeople = (People)that; // than we can cast it to People safely
return this.name.equals(thatPeople.name) && this.age == thatPeople.age;// if they have the same name and same age, then the 2 objects are equal unless they're pointing to different memory a...
What are major differences between C# and Java?
...es over Java, many of which, such as operator overloading and user-defined casts, are already familiar to the large community of C++ programmers.
• Event handling is a "first class citizen"—it is part of the language itself.
• Allows the definition of "structs", which are similar to clas...
Check if a string contains a string in C++
... end = high_resolution_clock::now();
timespan = duration_cast<duration<double>>(end-start);
std::cout << "Processing of " << haystacksCount << " elements took " << timespan.count() << " seconds." << std::endl;
...