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StringBuilder.Append Method (Char, Int32)

Updated: January 2011

Appends a specified number of copies of the string representation of a Unicode character to the end of this instance.

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

Public Function Append ( _
	value As Char, _
	repeatCount As Integer _
) As StringBuilder


Type: System.Char
The character to append.
Type: System.Int32
The number of times to append value.

Return Value

Type: System.Text.StringBuilder
A reference to this instance after the append operation has completed.


repeatCount is less than zero.


Enlarging the value of this instance would exceed its maximum capacity.


Out of memory.

The Append 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, as the following example illustrates.

Dim value As Decimal = 1346.19d
Dim sb As New System.Text.StringBuilder()
sb.Append("*"c, 5).AppendFormat("{0:C2}", value).Append("*"c, 5)
outputBlock.Text += sb.ToString() + vbCrLf
' The example displays the following output:
'       *****$1,346.19*****

The capacity of this instance is adjusted as needed.


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

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




January 2011

Expanded the Remarks section and removed the example.

Customer feedback.

Community Additions

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