<PackageReference Include="NETStandard.Library" Version="2.0.2" />

System.Text.StringBuilder

public sealed class StringBuilder : ISerializable
namespace System.Text { public sealed class StringBuilder : ISerializable { public int Capacity { get; set; } public char this[int index] { get; set; } public int Length { get; set; } public int MaxCapacity { get; } public StringBuilder(); public StringBuilder(int capacity); public StringBuilder(int capacity, int maxCapacity); public StringBuilder(string value); public StringBuilder(string value, int capacity); public StringBuilder(string value, int startIndex, int length, int capacity); public StringBuilder Append(bool value); public StringBuilder Append(byte value); public StringBuilder Append(char value); public unsafe StringBuilder Append(char* value, int valueCount); public StringBuilder Append(char value, int repeatCount); public StringBuilder Append(char[] value); public StringBuilder Append(char[] value, int startIndex, int charCount); public StringBuilder Append(decimal value); public StringBuilder Append(double value); public StringBuilder Append(short value); public StringBuilder Append(int value); public StringBuilder Append(long value); public StringBuilder Append(object value); public StringBuilder Append(sbyte value); public StringBuilder Append(float value); public StringBuilder Append(string value); public StringBuilder Append(string value, int startIndex, int count); public StringBuilder Append(ushort value); public StringBuilder Append(uint value); public StringBuilder Append(ulong value); public StringBuilder AppendFormat(IFormatProvider provider, string format, object arg0); public StringBuilder AppendFormat(IFormatProvider provider, string format, object arg0, object arg1); public StringBuilder AppendFormat(IFormatProvider provider, string format, object arg0, object arg1, object arg2); public StringBuilder AppendFormat(IFormatProvider provider, string format, params object[] args); public StringBuilder AppendFormat(string format, object arg0); public StringBuilder AppendFormat(string format, object arg0, object arg1); public StringBuilder AppendFormat(string format, object arg0, object arg1, object arg2); public StringBuilder AppendFormat(string format, params object[] args); public StringBuilder AppendLine(); public StringBuilder AppendLine(string value); public StringBuilder Clear(); public void CopyTo(int sourceIndex, char[] destination, int destinationIndex, int count); public int EnsureCapacity(int capacity); public bool Equals(StringBuilder sb); public StringBuilder Insert(int index, bool value); public StringBuilder Insert(int index, byte value); public StringBuilder Insert(int index, char value); public StringBuilder Insert(int index, char[] value); public StringBuilder Insert(int index, char[] value, int startIndex, int charCount); public StringBuilder Insert(int index, decimal value); public StringBuilder Insert(int index, double value); public StringBuilder Insert(int index, short value); public StringBuilder Insert(int index, int value); public StringBuilder Insert(int index, long value); public StringBuilder Insert(int index, object value); public StringBuilder Insert(int index, sbyte value); public StringBuilder Insert(int index, float value); public StringBuilder Insert(int index, string value); public StringBuilder Insert(int index, string value, int count); public StringBuilder Insert(int index, ushort value); public StringBuilder Insert(int index, uint value); public StringBuilder Insert(int index, ulong value); public StringBuilder Remove(int startIndex, int length); public StringBuilder Replace(char oldChar, char newChar); public StringBuilder Replace(char oldChar, char newChar, int startIndex, int count); public StringBuilder Replace(string oldValue, string newValue); public StringBuilder Replace(string oldValue, string newValue, int startIndex, int count); public string ToString(int startIndex, int length); } }