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String Constructor (Char*, Int32, Int32)

Initializes a new instance of the String class to the value indicated by a specified pointer to an array of Unicode characters, a starting character position within that array, and a length.

This constructor is not CLS-compliant.  

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

[CLSCompliantAttribute(false)] 
public String (
	char* value,
	int startIndex,
	int length
)
J# does not support APIs that consume or return unsafe types.
JScript does not support APIs that consume or return unsafe types.

Parameters

value

A pointer to an array of Unicode characters.

startIndex

The starting position within value.

length

The number of characters within value to use.

Exception typeCondition

ArgumentOutOfRangeException

startIndex or length is less than zero, value + startIndex cause a pointer overflow, or the current process does not have read access to all the addressed characters.

ArgumentNullException

value is a null reference (Nothing in Visual Basic).

ArgumentException

value specifies an array that contains an invalid Unicode character, or value + startIndex specifies an address less than 64000.

If length is zero, an Empty instance is initialized.

This constructor copies Unicode characters from value, starting at startIndex and ending at (startIndex + length - 1).

If the specified range is outside of the memory allocated for the sequence of characters, the behavior of this constructor is system dependent. For example, such a situation might cause an access violation.

In C#, this constructor is defined only in the context of unsafe code.

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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