| LastIndexOf(StringBuilder, Char) | Returns the zero-based index of the last occurrence of the specified character in builder. |
| LastIndexOf(StringBuilder, Char, Int32) | Returns the zero-based index of the last occurrence of the specified character in builder. The search begins at a specified character position and runs backwards to the beginning of the StringBuilder. |
| LastIndexOf(StringBuilder, Char, Int32, Int32) | Specifies the zero-based index of the last occurrence of the specified character in builder. The search begins at a specified index and runs backwards for a specified number of character positions to the beginning of the StringBuilder. |