StringBuilder.Insert Method (Int32, Char)
.NET Framework 3.0
Inserts the string representation of a specified Unicode character into this instance at the specified character position.
Namespace: System.Text
Assembly: mscorlib (in mscorlib.dll)
Assembly: mscorlib (in mscorlib.dll)
public StringBuilder Insert ( int index, char value )
public function Insert ( index : int, value : char ) : StringBuilder
Not applicable.
Parameters
- index
The position in this instance where insertion begins.
- value
The value to insert.
Return Value
A reference to this instance after the insert operation has completed.| Exception type | Condition |
|---|---|
| index is less than zero or greater than the length of this instance. -or- Enlarging the value of this instance would exceed MaxCapacity. |
Char.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.
The following code example demonstrates the Insert method.
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]-- */
// This example demonstrates StringBuilder.Insert()
import System.*;
import System.Text.*;
class Sample
{
// index: 012345
private static String initialValue = "--[]--";
private static StringBuilder sb;
public static void main(String[] args)
{
String xyz = "xyz";
char abc[] = { 'a', 'b', 'c' };
char star = '*';
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;
//
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);
} //main
//
public static void Show(int overloadNumber, StringBuilder sbs)
{
Console.WriteLine("{0,2:G} = {1}",
System.Convert.ToString(overloadNumber), sbs.ToString());
sb = new StringBuilder(initialValue);
} //Show
} //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]--
15 = --[8]--
16 = --[9]--
17 = --[10]--
18 = --[-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.