StringBuilder.Insert Method (Int32, Char[], Int32, Int32)
Inserts the string representation of a specified subarray of Unicode characters into this instance at the specified character position.
Assembly: mscorlib (in mscorlib.dll)
public StringBuilder Insert( int index, char[] value, int startIndex, int charCount )
Parameters
- index
- Type: System.Int32
The position in this instance where insertion begins.
- value
- Type: System.Char[]
A character array.
- startIndex
- Type: System.Int32
The starting index within value.
- charCount
- Type: System.Int32
The number of characters to insert.
Return Value
Type: System.Text.StringBuilderA reference to this instance after the insert operation has completed.
| Exception | Condition |
|---|---|
| ArgumentNullException |
value is null, and startIndex and charCount are not zero. |
| ArgumentOutOfRangeException |
index, startIndex, or charCount is less than zero. -or- index is greater than the length of this instance. -or- startIndex plus charCount is not a position within value. -or- Enlarging the value of this instance would exceed MaxCapacity. |
The following 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]-- */
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), 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.