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StringBuilder::Append Method (Char*, Int32)

.NET Framework (current version)
 
clsCompliantAlternativeM:System.Text.StringBuilder.Append(System.Char[],System.Int32,System.Int32)

Appends an array of Unicode characters starting at a specified address to this instance.

This API is not CLS-compliant.

Namespace:   System.Text
Assembly:  mscorlib (in mscorlib.dll)

public:
[SecurityCriticalAttribute]
[CLSCompliantAttribute(false)]
StringBuilder^ Append(
	wchar_t* value,
	int valueCount
)

Parameters

value
Type: System::Char*

A pointer to an array of characters.

valueCount
Type: System::Int32

The number of characters in the array.

Return Value

Type: System.Text::StringBuilder^

A reference to this instance after the append operation has completed.

Exception Condition
ArgumentOutOfRangeException

valueCount is less than zero.

-or-

Enlarging the value of this instance would exceed StringBuilder::MaxCapacity.

NullReferenceException

value is a null pointer.

This method appends valueCount characters starting at address value to the current instance.

The Append(Char*, Int32) method modifies the existing instance of this class; it does not return a new class instance. Because of this, you can call a method or property on the existing reference and you do not have to assign the return value to a StringBuilder object.

The capacity of this instance is adjusted as needed.

Notes to Callers:

In the.NET Framework 4 and the .NET Framework 4.5, when you instantiate the StringBuilder object by calling the StringBuilder(Int32, Int32) constructor, both the length and the capacity of the StringBuilder instance can grow beyond the value of its MaxCapacity property. This can occur particularly when you call the Append and AppendFormat methods to append small strings.

Universal Windows Platform
Available since 10
.NET Framework
Available since 4.6
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