CStringArray Class

 

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Supports arrays of CString objects.

class CStringArray : public CObject  

The member functions of CStringArray are similar to the member functions of class CObArray. Because of this similarity, you can use the CObArray reference documentation for member function specifics. Wherever you see a CObject pointer as a return value, substitute a CString object (not a CString pointer). Wherever you see a CObject pointer as a function parameter, substitute a LPCTSTR.

CObject* CObArray::GetAt( int <nIndex> ) const;

for example, translates to

CString CStringArray::GetAt( int <nIndex> ) const;

and

void SetAt( int <nIndex>, CObject* <newElement> )

translates to

void SetAt( int <nIndex>, LPCTSTR <newElement> )

Public Constructors

NameDescription
CObArray::CObArrayConstructs an empty array.

Public Methods

NameDescription
CObArray::AddAdds an element to the end of the array; grows the array if necessary.
CObArray::AppendAppends another array to the array; grows the array if necessary.
CObArray::CopyCopies another array to the array; grows the array if necessary.
CObArray::ElementAtReturns a temporary reference to the element pointer within the array.
CObArray::FreeExtraFrees all unused memory above the current upper bound.
CObArray::GetAtReturns the value at a given index.
CObArray::GetCountGets the number of elements in this array.
CObArray::GetDataAllows access to elements in the array. Can be NULL.
CObArray::GetSizeGets the number of elements in this array.
CObArray::GetUpperBoundReturns the largest valid index.
CObArray::InsertAtInserts an element (or all the elements in another array) at a specified index.
CObArray::IsEmptyDetermines if the array is empty.
CObArray::RemoveAllRemoves all the elements from this array.
CObArray::RemoveAtRemoves an element at a specific index.
CObArray::SetAtSets the value for a given index; array not allowed to grow.
CObArray::SetAtGrowSets the value for a given index; grows the array if necessary.
CObArray::SetSizeSets the number of elements to be contained in this array.

Public Operators

NameDescription
CObArray::operator [ ]Sets or gets the element at the specified index.

CStringArray incorporates the IMPLEMENT_SERIAL macro to support serialization and dumping of its elements. If an array of CString objects is stored to an archive, either with an overloaded insertion operator or with the Serialize member function, each element is serialized in turn.

System_CAPS_ICON_note.jpg Note

Before using an array, use SetSize to establish its size and allocate memory for it. If you do not use SetSize, adding elements to your array causes it to be frequently reallocated and copied. Frequent reallocation and copying are inefficient and can fragment memory.

If you need a dump of individual string elements in the array, you must set the depth of the dump context to 1 or greater.

When a CString array is deleted, or when its elements are removed, string memory is freed as appropriate.

For more information on using CStringArray, see the article Collections.

CObject

CStringArray

Header: afxcoll.h

CObject Class
Hierarchy Chart

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