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StringBuilder.Append Method (String)

Appends a copy of the specified string to the end of this instance.

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

public StringBuilder Append (
	string value
)
public StringBuilder Append (
	String value
)
public function Append (
	value : String
) : StringBuilder
Not applicable.

Parameters

value

The String to append.

Return Value

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

Exception typeCondition

ArgumentOutOfRangeException

Enlarging the value of this instance would exceed MaxCapacity.

If value is a null reference (Nothing in Visual Basic), no changes are made.

The capacity of this instance is adjusted as needed.

The following example demonstrates how to append various data type values to a StringBuilder object.

using System;
using System.Text;

class Sample 
{
    public static void Main() 
    {
    string      sep       = ", ";
    string      head      = "<<<";
    char[]      tail      = {'>', '>', '>'};
    char        dash      = '-';
    Object 	obj       = 0;

    bool        xBool     = true;
    byte        xByte     = 1;
    short       xInt16    = 2;
    int         xInt32    = 3;
    long        xInt64    = 4;
    Decimal     xDecimal  = 5;
    float       xSingle   = 6.6F;
    double      xDouble   = 7.7;

// The following types are not CLS-compliant.
    ushort      xUInt16   = 8;
    uint        xUInt32   = 9;
    ulong       xUInt64   = 10;
    sbyte       xSByte    = -11;
//
    StringBuilder sb = new StringBuilder();

    sb = sb.Append(head);                // <<<
    sb = sb.Append(head, 2, 1);          // <<<<
    sb = sb.Append(dash);                // <<<<-
    sb = sb.Append(dash).Append(dash);   // <<<<---

    sb = sb.Append(xBool).Append(sep);
    sb = sb.Append(obj).Append(sep).Append(xByte).Append(sep);
    sb = sb.Append(xInt16);
    sb = sb.Append(sep);
    sb = sb.Append(xInt32);
    sb = sb.Append(sep);
    sb = sb.Append(xInt64);
    sb = sb.Append(sep);
    sb = sb.Append(xDecimal).Append(sep);
    sb = sb.Append(xSingle).Append(sep).Append(xDouble).Append(sep);

// The following Append methods are not CLS-compliant.
    sb = sb.Append(xUInt16).Append(sep);
    sb = sb.Append(xUInt32).Append(sep).Append(xUInt64).Append(sep);
    sb = sb.Append(xSByte);
//
    sb = sb.Append(dash, 3);             // ---
    sb = sb.Append(tail);                // --->>>
    sb = sb.Append(tail, 2, 1);          // --->>>>
   
    String str = sb.ToString();
    Console.WriteLine("The appended string is:");
    Console.WriteLine(str);
    }
}
/*
This example produces the following results:
The appended string is:
<<<<---True, 0, 1, 2, 3, 4, 5, 6.6, 7.7, 8, 9, 10, -11--->>>>
*/

// This example demonstrates StringBuilder.Append()
import System.*;
import System.Text.*;

class Sample
{
    public static void main(String[] args)
    {
        String sep = ", ";
        String head = "<<<";
        char tail[] =  { '>', '>', '>' };
        char dash = '-';
        Object obj = new Integer(0);

        boolean xBool = true;
        ubyte xByte = 1;
        short xInt16 = 2;
        int xInt32 = 3;
        long xInt64 = 4;
        Decimal xDecimal = new Decimal(5);
        float xSingle = 6.6f;
        double xDouble = 7.7;
        // The following types are not CLS-compliant.
        int xUInt16 = 8;
        int xUInt32 = 9;
        long xUInt64 = 10;
        byte xSByte = -11;
        //
        StringBuilder sb = new StringBuilder();

        sb = sb.Append(head); // <<<
        sb = sb.Append(head, 2, 1); // <<<<
        sb = sb.Append(dash); // <<<<-
        sb = sb.Append(dash).Append(dash); // <<<<---
        sb = sb.Append(xBool).Append(sep);
        sb = sb.Append(obj).Append(sep).Append(xByte).Append(sep);
        sb = sb.Append(xInt16);
        sb = sb.Append(sep);
        sb = sb.Append(xInt32);
        sb = sb.Append(sep);
        sb = sb.Append(xInt64);
        sb = sb.Append(sep);
        sb = sb.Append(xDecimal).Append(sep);
        sb = sb.Append(xSingle).Append(sep).Append(xDouble).Append(sep);
        // The following Append methods are not CLS-compliant.
        sb = sb.Append(xUInt16).Append(sep);
        sb = sb.Append(xUInt32).Append(sep).Append(xUInt64).Append(sep);
        sb = sb.Append(xSByte);
        //
        sb = sb.Append(dash, 3); // ---
        sb = sb.Append(tail); // --->>>
        sb = sb.Append(tail, 2, 1); // --->>>>
        String str = sb.ToString();
        Console.WriteLine("The appended string is:");
        Console.WriteLine(str);
    } //main
} //Sample
/*
This example produces the following results:
The appended string is:
<<<<---True, 0, 1, 2, 3, 4, 5, 6.6, 7.7, 8, 9, 10, -11--->>>>
*/

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0

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