StringBuilder.Insert メソッド (Int32, Object) (System.Text)

Insert メソッド (Int32, Object)

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.NET Framework Class Library

StringBuilder..::.Insert Method (Int32, Object)

Inserts the string representation of an object into this instance at the specified character position.

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

Syntax

Visual Basic

Public Function Insert ( _
    index As Integer, _
    value As Object _
) As StringBuilder

public StringBuilder Insert(
    int index,
    Object value
)

Visual C++

public:
StringBuilder^ Insert(
    int index, 
    Object^ value
)

member Insert : 
        index:int * 
        value:Object -> StringBuilder

Parameters

index: Type: System..::.Int32
The position in this instance where insertion begins.

value: Type: System..::.Object
The object to insert, or nullNothingnullptra null reference (Nothing in Visual Basic).

Return Value

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

Exceptions

Exception	Condition
ArgumentOutOfRangeException	index is less than zero or greater than the length of this instance.
OutOfMemoryException	Enlarging the value of this instance would exceed MaxCapacity.

Remarks

Object..::.ToString is used to get a string representation of value. Existing characters are shifted to make room for the new text. The capacity of this instance is adjusted as needed.

If value is nullNothingnullptra null reference (Nothing in Visual Basic), the value of this instance is unchanged.

Notes to Callers

In the .NET Framework version 3.5 Service Pack 1 and earlier versions, calls to this method threw an ArgumentOutOfRangeException if inserting value would cause the object's total length to exceed MaxCapacity. Starting with the .NET Framework version 4, the method throws an OutOfMemoryException.

Examples

The following example demonstrates the Insert method.

Visual Basic

Imports System
Imports System.Text

Class Sample
   '                                 index: 012345
   Private Shared initialValue As String = "--[]--"
   Private Shared sb As StringBuilder

   Public Shared Sub Main()
      Dim xyz As String = "xyz"
      Dim abc As Char() =  {"a"c, "b"c, "c"c}
      Dim star As Char = "*"c
      Dim obj As [Object] = 0

      Dim xBool As Boolean = True
      Dim xByte As Byte = 1
      Dim xInt16 As Short = 2
      Dim xInt32 As Integer = 3
      Dim xInt64 As Long = 4
      Dim xDecimal As [Decimal] = 5
      Dim xSingle As Single = 6.6F
      Dim xDouble As Double = 7.7

      ' The following types are not CLS-compliant.
      ' Dim xUInt16 As System.UInt16 = 8 
      ' Dim xUInt32 As System.UInt32 = 9
      ' Dim xUInt64 As System.UInt64 = 10 
      ' Dim xSByte As System.SByte = - 11
      '
      Console.WriteLine("StringBuilder.Insert method")
      sb = New StringBuilder(initialValue)

      sb.Insert(3, xyz, 2)
      Show(1, sb)

      sb.Insert(3, xyz)
      Show(2, sb)

      sb.Insert(3, star)
      Show(3, sb)

      sb.Insert(3, abc)
      Show(4, sb)

      sb.Insert(3, abc, 1, 2)
      Show(5, sb)

      sb.Insert(3, xBool)     ' True
      Show(6, sb)

      sb.Insert(3, obj)       ' 0
      Show(7, sb)

      sb.Insert(3, xByte)     ' 1
      Show(8, sb)

      sb.Insert(3, xInt16)    ' 2
      Show(9, sb)

      sb.Insert(3, xInt32)    ' 3
      Show(10, sb)

      sb.Insert(3, xInt64)    ' 4
      Show(11, sb)

      sb.Insert(3, xDecimal)  ' 5
      Show(12, sb)

      sb.Insert(3, xSingle)   ' 6.6
      Show(13, sb)

      sb.Insert(3, xDouble)   ' 7.7
      Show(14, sb)

      ' The following Insert methods are not CLS-compliant.
      ' sb.Insert(3, xUInt16) ' 8
      ' sb.Insert(3, xUInt32) ' 9
      ' sb.Insert(3, xUInt64) ' 10
      ' sb.Insert(3, xSByte)  ' -11

   End Sub 'Main

   Public Shared Sub Show(overloadNumber As Integer, sbs As StringBuilder)
      Console.WriteLine("{0,2:G} = {1}", overloadNumber, sbs.ToString())
      sb = New StringBuilder(initialValue)
   End Sub 'Show
End Class 'Sample
'
'This example produces the following results:
'
'StringBuilder.Insert method
' 1 = --[xyzxyz]--
' 2 = --[xyz]--
' 3 = --[*]--
' 4 = --[abc]--
' 5 = --[bc]--
' 6 = --[True]--
' 7 = --[0]--
' 8 = --[1]--
' 9 = --[2]--
'10 = --[3]--
'11 = --[4]--
'12 = --[5]--
'13 = --[6.6]--
'14 = --[7.7]--
'

using System;
using System.Text;

class Sample 
{
//                         index: 012345
    static string initialValue = "--[]--";
    static StringBuilder sb;

    public static void Main() 
    {
    string      xyz       = "xyz";
    char[]      abc       = {'a', 'b', 'c'};
    char        star      = '*';
    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;
//
    Console.WriteLine("StringBuilder.Insert method");
    sb = new StringBuilder(initialValue);

    sb.Insert(3, xyz, 2);
    Show(1, sb);

    sb.Insert(3, xyz);
    Show(2, sb);

    sb.Insert(3, star);
    Show(3, sb);

    sb.Insert(3, abc);
    Show(4, sb);

    sb.Insert(3, abc, 1, 2);
    Show(5, sb);

    sb.Insert(3, xBool);     // True
    Show(6, sb);

    sb.Insert(3, obj);       // 0
    Show(7, sb);

    sb.Insert(3, xByte);     // 1
    Show(8, sb);

    sb.Insert(3, xInt16);    // 2
    Show(9, sb);

    sb.Insert(3, xInt32);    // 3
    Show(10, sb);

    sb.Insert(3, xInt64);    // 4
    Show(11, sb);

    sb.Insert(3, xDecimal);  // 5
    Show(12, sb);

    sb.Insert(3, xSingle);   // 6.6
    Show(13, sb);

    sb.Insert(3, xDouble);   // 7.7
    Show(14, sb);

// The following Insert methods are not CLS-compliant.
    sb.Insert(3, xUInt16);   // 8
    Show(15, sb);

    sb.Insert(3, xUInt32);   // 9
    Show(16, sb);

    sb.Insert(3, xUInt64);   // 10
    Show(17, sb);

    sb.Insert(3, xSByte);    // -11
    Show(18, sb);
//
    }

    public static void Show(int overloadNumber, StringBuilder sbs)
    {
    Console.WriteLine("{0,2:G} = {1}", overloadNumber, sbs.ToString());
    sb = new StringBuilder(initialValue);
    }
}
/*
This example produces the following results:

StringBuilder.Insert method
 1 = --[xyzxyz]--
 2 = --[xyz]--
 3 = --[*]--
 4 = --[abc]--
 5 = --[bc]--
 6 = --[True]--
 7 = --[0]--
 8 = --[1]--
 9 = --[2]--
10 = --[3]--
11 = --[4]--
12 = --[5]--
13 = --[6.6]--
14 = --[7.7]--
15 = --[8]--
16 = --[9]--
17 = --[10]--
18 = --[-11]--

*/

Visual C++

using namespace System;
using namespace System::Text;
ref class Sample
{
private:

   //                           index: 012345
   static String^ initialValue = "--[]--";
   static StringBuilder^ sb;

public:
   static void Main()
   {
      String^ xyz = "xyz";
      array<Char>^abc = {'a','b','c'};
      Char star = '*';
      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.
      UInt16 xUInt16 = 8;
      UInt32 xUInt32 = 9;
      UInt64 xUInt64 = 10;
      SByte xSByte = -11;

      //
      Console::WriteLine( "StringBuilder.Insert method" );
      sb = gcnew StringBuilder( initialValue );
      sb->Insert( 3, xyz, 2 );
      Show( 1, sb );
      sb->Insert( 3, xyz );
      Show( 2, sb );
      sb->Insert( 3, star );
      Show( 3, sb );
      sb->Insert( 3, abc );
      Show( 4, sb );
      sb->Insert( 3, abc, 1, 2 );
      Show( 5, sb );
      sb->Insert( 3, xBool ); // True
      Show( 6, sb );
      sb->Insert( 3, obj ); // 0
      Show( 7, sb );
      sb->Insert( 3, xByte ); // 1
      Show( 8, sb );
      sb->Insert( 3, xInt16 ); // 2
      Show( 9, sb );
      sb->Insert( 3, xInt32 ); // 3
      Show( 10, sb );
      sb->Insert( 3, xInt64 ); // 4
      Show( 11, sb );
      sb->Insert( 3, xDecimal ); // 5
      Show( 12, sb );
      sb->Insert( 3, xSingle ); // 6.6
      Show( 13, sb );
      sb->Insert( 3, xDouble ); // 7.7
      Show( 14, sb );

      // The following Insert methods are not CLS-compliant.
      sb->Insert( 3, xUInt16 ); // 8
      Show( 15, sb );
      sb->Insert( 3, xUInt32 ); // 9
      Show( 16, sb );
      sb->Insert( 3, xUInt64 ); // 10
      Show( 17, sb );
      sb->Insert( 3, xSByte ); // -11
      Show( 18, sb );

      //
   }

   static void Show( int overloadNumber, StringBuilder^ sbs )
   {
      Console::WriteLine( "{0,2:G} = {1}", overloadNumber, sbs );
      sb = gcnew StringBuilder( initialValue );
   }

};

int main()
{
   Sample::Main();
}

/*
This example produces the following results:

StringBuilder.Insert method
 1 = --[xyzxyz]--
 2 = --[xyz]--
 3 = --[*]--
 4 = --[abc]--
 5 = --[bc]--
 6 = --[True]--
 7 = --[0]--
 8 = --[1]--
 9 = --[2]--
10 = --[3]--
11 = --[4]--
12 = --[5]--
13 = --[6.6]--
14 = --[7.7]--
15 = --[8]--
16 = --[9]--
17 = --[10]--
18 = --[-11]--

*/

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role not supported), Windows Server 2003 SP2

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

Reference

StringBuilder Class

Insert Overload

System.Text Namespace

Object

.NET Framework クラスライブラリ

StringBuilder..::.Insert メソッド (Int32, Object)

オブジェクトの文字列形式をこのインスタンスの指定した文字位置に挿入します。

名前空間: System.Text
アセンブリ: mscorlib (mscorlib.dll 内)

構文

Visual Basic

Public Function Insert ( _
    index As Integer, _
    value As Object _
) As StringBuilder

public StringBuilder Insert(
    int index,
    Object value
)

Visual C++

public:
StringBuilder^ Insert(
    int index, 
    Object^ value
)

member Insert : 
        index:int * 
        value:Object -> StringBuilder

パラメーター

index: 型: System..::.Int32
このインスタンスにおける挿入の開始位置。

value: 型: System..::.Object
挿入するオブジェクト、または nullNothingnullptrnull 参照 (Visual Basic では Nothing)。

戻り値

型: System.Text..::.StringBuilder
挿入操作が完了した後のこのインスタンスへの参照。

例外

例外	条件
ArgumentOutOfRangeException	index が、0 未満か、このインスタンスの長さを超えています。
OutOfMemoryException	このインスタンスの値を増やすと、MaxCapacity を超えます。

解説

Object..::.ToString は、value の文字列形式を取得するために使用されます。新しいテキストの入るスペースを空けるため、既存の文字がシフトされます。このインスタンスの容量は、必要に応じて調整されます。

value が nullNothingnullptrnull 参照 (Visual Basic では Nothing) の場合、このインスタンスの値は変更されません。

呼び出し時の注意

.NET Framework Version 3.5 Service Pack 1 以前のバージョンでは、value を挿入するとオブジェクトの合計長が MaxCapacity を超える場合には、このメソッドの呼び出しで ArgumentOutOfRangeException がスローされていました。 .NET Framework Version 4 以降、このメソッドは OutOfMemoryException をスローします。

例

Insert メソッドの例を次に示します。

Visual Basic

Imports System
Imports System.Text

Class Sample
   '                                 index: 012345
   Private Shared initialValue As String = "--[]--"
   Private Shared sb As StringBuilder

   Public Shared Sub Main()
      Dim xyz As String = "xyz"
      Dim abc As Char() =  {"a"c, "b"c, "c"c}
      Dim star As Char = "*"c
      Dim obj As [Object] = 0

      Dim xBool As Boolean = True
      Dim xByte As Byte = 1
      Dim xInt16 As Short = 2
      Dim xInt32 As Integer = 3
      Dim xInt64 As Long = 4
      Dim xDecimal As [Decimal] = 5
      Dim xSingle As Single = 6.6F
      Dim xDouble As Double = 7.7

      ' The following types are not CLS-compliant.
      ' Dim xUInt16 As System.UInt16 = 8 
      ' Dim xUInt32 As System.UInt32 = 9
      ' Dim xUInt64 As System.UInt64 = 10 
      ' Dim xSByte As System.SByte = - 11
      '
      Console.WriteLine("StringBuilder.Insert method")
      sb = New StringBuilder(initialValue)

      sb.Insert(3, xyz, 2)
      Show(1, sb)

      sb.Insert(3, xyz)
      Show(2, sb)

      sb.Insert(3, star)
      Show(3, sb)

      sb.Insert(3, abc)
      Show(4, sb)

      sb.Insert(3, abc, 1, 2)
      Show(5, sb)

      sb.Insert(3, xBool)     ' True
      Show(6, sb)

      sb.Insert(3, obj)       ' 0
      Show(7, sb)

      sb.Insert(3, xByte)     ' 1
      Show(8, sb)

      sb.Insert(3, xInt16)    ' 2
      Show(9, sb)

      sb.Insert(3, xInt32)    ' 3
      Show(10, sb)

      sb.Insert(3, xInt64)    ' 4
      Show(11, sb)

      sb.Insert(3, xDecimal)  ' 5
      Show(12, sb)

      sb.Insert(3, xSingle)   ' 6.6
      Show(13, sb)

      sb.Insert(3, xDouble)   ' 7.7
      Show(14, sb)

      ' The following Insert methods are not CLS-compliant.
      ' sb.Insert(3, xUInt16) ' 8
      ' sb.Insert(3, xUInt32) ' 9
      ' sb.Insert(3, xUInt64) ' 10
      ' sb.Insert(3, xSByte)  ' -11

   End Sub 'Main

   Public Shared Sub Show(overloadNumber As Integer, sbs As StringBuilder)
      Console.WriteLine("{0,2:G} = {1}", overloadNumber, sbs.ToString())
      sb = New StringBuilder(initialValue)
   End Sub 'Show
End Class 'Sample
'
'This example produces the following results:
'
'StringBuilder.Insert method
' 1 = --[xyzxyz]--
' 2 = --[xyz]--
' 3 = --[*]--
' 4 = --[abc]--
' 5 = --[bc]--
' 6 = --[True]--
' 7 = --[0]--
' 8 = --[1]--
' 9 = --[2]--
'10 = --[3]--
'11 = --[4]--
'12 = --[5]--
'13 = --[6.6]--
'14 = --[7.7]--
'

using System;
using System.Text;

class Sample 
{
//                         index: 012345
    static string initialValue = "--[]--";
    static StringBuilder sb;

    public static void Main() 
    {
    string      xyz       = "xyz";
    char[]      abc       = {'a', 'b', 'c'};
    char        star      = '*';
    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;
//
    Console.WriteLine("StringBuilder.Insert method");
    sb = new StringBuilder(initialValue);

    sb.Insert(3, xyz, 2);
    Show(1, sb);

    sb.Insert(3, xyz);
    Show(2, sb);

    sb.Insert(3, star);
    Show(3, sb);

    sb.Insert(3, abc);
    Show(4, sb);

    sb.Insert(3, abc, 1, 2);
    Show(5, sb);

    sb.Insert(3, xBool);     // True
    Show(6, sb);

    sb.Insert(3, obj);       // 0
    Show(7, sb);

    sb.Insert(3, xByte);     // 1
    Show(8, sb);

    sb.Insert(3, xInt16);    // 2
    Show(9, sb);

    sb.Insert(3, xInt32);    // 3
    Show(10, sb);

    sb.Insert(3, xInt64);    // 4
    Show(11, sb);

    sb.Insert(3, xDecimal);  // 5
    Show(12, sb);

    sb.Insert(3, xSingle);   // 6.6
    Show(13, sb);

    sb.Insert(3, xDouble);   // 7.7
    Show(14, sb);

// The following Insert methods are not CLS-compliant.
    sb.Insert(3, xUInt16);   // 8
    Show(15, sb);

    sb.Insert(3, xUInt32);   // 9
    Show(16, sb);

    sb.Insert(3, xUInt64);   // 10
    Show(17, sb);

    sb.Insert(3, xSByte);    // -11
    Show(18, sb);
//
    }

    public static void Show(int overloadNumber, StringBuilder sbs)
    {
    Console.WriteLine("{0,2:G} = {1}", overloadNumber, sbs.ToString());
    sb = new StringBuilder(initialValue);
    }
}
/*
This example produces the following results:

StringBuilder.Insert method
 1 = --[xyzxyz]--
 2 = --[xyz]--
 3 = --[*]--
 4 = --[abc]--
 5 = --[bc]--
 6 = --[True]--
 7 = --[0]--
 8 = --[1]--
 9 = --[2]--
10 = --[3]--
11 = --[4]--
12 = --[5]--
13 = --[6.6]--
14 = --[7.7]--
15 = --[8]--
16 = --[9]--
17 = --[10]--
18 = --[-11]--

*/

Visual C++

using namespace System;
using namespace System::Text;
ref class Sample
{
private:

   //                           index: 012345
   static String^ initialValue = "--[]--";
   static StringBuilder^ sb;

public:
   static void Main()
   {
      String^ xyz = "xyz";
      array<Char>^abc = {'a','b','c'};
      Char star = '*';
      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.
      UInt16 xUInt16 = 8;
      UInt32 xUInt32 = 9;
      UInt64 xUInt64 = 10;
      SByte xSByte = -11;

      //
      Console::WriteLine( "StringBuilder.Insert method" );
      sb = gcnew StringBuilder( initialValue );
      sb->Insert( 3, xyz, 2 );
      Show( 1, sb );
      sb->Insert( 3, xyz );
      Show( 2, sb );
      sb->Insert( 3, star );
      Show( 3, sb );
      sb->Insert( 3, abc );
      Show( 4, sb );
      sb->Insert( 3, abc, 1, 2 );
      Show( 5, sb );
      sb->Insert( 3, xBool ); // True
      Show( 6, sb );
      sb->Insert( 3, obj ); // 0
      Show( 7, sb );
      sb->Insert( 3, xByte ); // 1
      Show( 8, sb );
      sb->Insert( 3, xInt16 ); // 2
      Show( 9, sb );
      sb->Insert( 3, xInt32 ); // 3
      Show( 10, sb );
      sb->Insert( 3, xInt64 ); // 4
      Show( 11, sb );
      sb->Insert( 3, xDecimal ); // 5
      Show( 12, sb );
      sb->Insert( 3, xSingle ); // 6.6
      Show( 13, sb );
      sb->Insert( 3, xDouble ); // 7.7
      Show( 14, sb );

      // The following Insert methods are not CLS-compliant.
      sb->Insert( 3, xUInt16 ); // 8
      Show( 15, sb );
      sb->Insert( 3, xUInt32 ); // 9
      Show( 16, sb );
      sb->Insert( 3, xUInt64 ); // 10
      Show( 17, sb );
      sb->Insert( 3, xSByte ); // -11
      Show( 18, sb );

      //
   }

   static void Show( int overloadNumber, StringBuilder^ sbs )
   {
      Console::WriteLine( "{0,2:G} = {1}", overloadNumber, sbs );
      sb = gcnew StringBuilder( initialValue );
   }

};

int main()
{
   Sample::Main();
}

/*
This example produces the following results:

StringBuilder.Insert method
 1 = --[xyzxyz]--
 2 = --[xyz]--
 3 = --[*]--
 4 = --[abc]--
 5 = --[bc]--
 6 = --[True]--
 7 = --[0]--
 8 = --[1]--
 9 = --[2]--
10 = --[3]--
11 = --[4]--
12 = --[5]--
13 = --[6.6]--
14 = --[7.7]--
15 = --[8]--
16 = --[9]--
17 = --[10]--
18 = --[-11]--

*/

バージョン情報

.NET Framework

サポート対象: 4、3.5、3.0、2.0、1.1、1.0

.NET Framework Client Profile

サポート対象: 4、3.5 SP1

プラットフォーム

Windows 7, Windows Vista SP1 以降, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core はサポート対象外), Windows Server 2008 R2 (SP1 以降で Server Core をサポート), Windows Server 2003 SP2

.NET Framework では、各プラットフォームのすべてのバージョンはサポートしていません。サポートされているバージョンについては、「.NET Framework システム要件」を参照してください。

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