5 // Chris J Breisch (cjbreisch@altavista.net)
6 // Dennis Hayes (dennish@raytek.com)
8 // (C) 2002 Chris J Breisch
11 * Copyright (c) 2002-2003 Mainsoft Corporation.
12 * Copyright (C) 2004 Novell, Inc (http://www.novell.com)
14 * Permission is hereby granted, free of charge, to any person obtaining a
15 * copy of this software and associated documentation files (the "Software"),
16 * to deal in the Software without restriction, including without limitation
17 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
18 * and/or sell copies of the Software, and to permit persons to whom the
19 * Software is furnished to do so, subject to the following conditions:
21 * The above copyright notice and this permission notice shall be included in
22 * all copies or substantial portions of the Software.
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
25 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
26 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
27 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
28 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
29 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
30 * DEALINGS IN THE SOFTWARE.
35 namespace Microsoft.VisualBasic.CompilerServices
37 [System.ComponentModel.EditorBrowsableAttribute(System.ComponentModel.EditorBrowsableState.Never)]
38 [Microsoft.VisualBasic.CompilerServices.StandardModuleAttribute]
39 sealed public class LongType {
42 * The method converts given object to long by the following logic:
43 * 1. If input object is null - return 0
44 * 2. If input object is String - run FromString method
45 * 3. Otherwise run .NET default conversion - Convert.ToInt64
46 * @param value - The object that going to be converted
47 * @return long The long value that converted from the source object
48 * @see system.Convert#ToInt64
50 public static long FromObject(object Value) {
51 if (Value == null)return 0;
53 if (Value is string)return FromString((string) Value);
55 return Convert.ToInt64(Value);
58 * The method try to convert given string to long in a following way:
59 * 1. If input string is null return 0.
60 * 2. If input string represents number: return value of this number,
61 * @exception InvalidCastException - in case if number translation failed
62 * @param str - The string that converted to long
63 * @return long The value that extracted from the input string.
64 * @see Microsoft.VisualBasic.VBUtils#isNumber
66 public static long FromString(string Value) {
67 if (Value == null)return 0;
69 return long.Parse(Value);