String Constructor (SByte*, Int32, Int32, Encoding)

String Constructor (SByte*, Int32, Int32, Encoding)


Initializes a new instance of the String class to the value indicated by a specified pointer to an array of 8-bit signed integers, a starting position within that array, a length, and an Encoding object.

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

new : 
        value:nativeptr<sbyte> *
        startIndex:int *
        length:int *
        enc:Encoding -> String


Type: System.SByte*

A pointer to an array of 8-bit signed integers.

Type: System.Int32

The starting position within value.

Type: System.Int32

The number of characters within value to use.

Type: System.Text.Encoding

An object that specifies how the array referenced by value is encoded. If enc is null, ANSI encoding is assumed.

Exception Condition

value is null.


startIndex or length is less than zero.


The address specified by value + startIndex is too large for the current platform; that is, the address calculation overflowed.


The length of the new string to initialize is too large to allocate.


The address specified by value + startIndex is less than 64K.


A new instance of String could not be initialized using value, assuming value is encoded as specified by enc.


value, startIndex, and length collectively specify an invalid address.


For examples and comprehensive usage information about this and other String constructor overloads, see the String constructor summary.


requires full trust for the immediate caller. This member cannot be used by partially trusted or transparent code.

.NET Framework
Available since 1.1
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