Article
11/18/2011

StringBuilder Constructor (Int32, Int32)

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Updated: August 2009

Initializes a new instance of the StringBuilder class that starts with a specified capacity and can grow to a specified maximum.

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

Syntax

'Declaration
Public Sub New ( _
    capacity As Integer, _
    maxCapacity As Integer _
)

public StringBuilder(
    int capacity,
    int maxCapacity
)

Parameters

capacity
Type: System.Int32
The suggested starting size of the StringBuilder.

maxCapacity
Type: System.Int32
The maximum number of characters the current string can contain.

Exceptions

Exception	Condition
ArgumentOutOfRangeException	maxCapacity is less than one, capacity is less than zero, or capacity is greater than maxCapacity.

Remarks

The capacity parameter defines the maximum number of characters that can be stored in the memory that is allocated by the current instance. Its value is assigned to the Capacity property. If the number of characters to be stored in the current instance exceeds this capacity value, the StringBuilder object allocates additional memory to store them.

If capacity is 0 (zero), the implementation-specific default capacity is used.

The maxCapacity parameter defines the maximum number of characters that the current instance can hold. If the number of characters to be stored in the current instance exceeds this maxCapacity value, the StringBuilder object does not allocate additional memory, but instead throws an exception.

Examples

The following code example demonstrates how to call the StringBuilder constructor with a specified capacity and maximum capacity.

Dim capacity As Integer = 255
Dim maxCapacity As Integer = 1024
Dim stringBuilder As New StringBuilder(capacity, maxCapacity)

int capacity = 255;
int maxCapacity = 1024;
StringBuilder stringBuilder =
    new StringBuilder(capacity, maxCapacity);

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Change History

Date	History	Reason
August 2009	Expanded the Remarks section.	Customer feedback.

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