■ 인스턴스를 직렬화 처리하는 방법을 보여준다.
▶ 인스턴스 직렬화 처리하기 예제(C#)
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using System; using System.Drawing; Rectangle rectangle = new Rectangle(new Point(100, 200), new Size(500, 500)); string instanceValue = GetInstanceValueString(rectangle); Rectangle restoreRectangle = (Rectangle)GetInstance(instanceValue, typeof(Rectangle)); Console.WriteLine(restoreRectangle); |
▶ 인스턴스 직렬화 처리하기 (C#)
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using System; using System.ComponentModel; using System.Globalization; #region 인스턴스 값 문자열 구하기 - GetInstanceValueString(instance, cultureInfo, unsupportedValue) /// <summary> /// 인스턴스 값 문자열 구하기 /// </summary> /// <param name="instance">인스턴스</param> /// <param name="cultureInfo">컬처 정보</param> /// <param name="unsupportedValue">미지원시 값</param> /// <returns>객체 문자열</returns> public string GetInstanceValueString(object instance, CultureInfo cultureInfo = null, string unsupportedValue = null) { if(instance == null) { return string.Empty; } if(cultureInfo == null) { cultureInfo = CultureInfo.CurrentCulture; } Type valueType = instance.GetType(); string returnValue = null; if(valueType == typeof(string)) { returnValue = instance as string; } else if ( valueType == typeof(int ) || valueType == typeof(decimal) || valueType == typeof(double) || valueType == typeof(float ) ) { returnValue = string.Format(cultureInfo.NumberFormat, "{0}", instance); } else if(valueType == typeof(DateTime)) { returnValue = string.Format(cultureInfo.DateTimeFormat, "{0}", instance); } else if(valueType == typeof(bool) || valueType == typeof(byte) || valueType.IsEnum) { returnValue = instance.ToString(); } else if(valueType == typeof(Guid?)) { if(instance == null) { returnValue = string.Empty; } else { return instance.ToString(); } } else { TypeConverter converter = TypeDescriptor.GetConverter(valueType); if(converter != null && converter.CanConvertTo(typeof(string)) && converter.CanConvertFrom(typeof(string))) { returnValue = converter.ConvertToString(null, cultureInfo, instance); } else { if(!string.IsNullOrEmpty(unsupportedValue)) { returnValue = unsupportedValue; } else { returnValue = instance.ToString(); } } } return returnValue; } #endregion #region 인스턴스 구하기 - GetInstance(source, instanceType, cultureInfo) /// <summary> /// 인스턴스 구하기 /// </summary> /// <param name="instanceValue">인스턴스 값</param> /// <param name="instanceType">인스턴스 타입</param> /// <param name="cultureInfo">문화 정보</param> /// <returns>인스턴스</returns> public object GetInstance(string instanceValue, Type instanceType, CultureInfo cultureInfo = null) { object result = null; bool isEmpty = string.IsNullOrEmpty(instanceValue); if(cultureInfo == null) { cultureInfo = CultureInfo.CurrentCulture; } if(instanceType == typeof(string)) { result = instanceValue; } else if(instanceType == typeof(int) || instanceType == typeof(int)) { if(isEmpty) { result = 0; } else { result = int.Parse(instanceValue, NumberStyles.Any, cultureInfo.NumberFormat); } } else if(instanceType == typeof(long)) { if(isEmpty) { result = (long)0; } else { result = long.Parse(instanceValue, NumberStyles.Any, cultureInfo.NumberFormat); } } else if(instanceType == typeof(short)) { if(isEmpty) { result = (short)0; } else { result = short.Parse(instanceValue, NumberStyles.Any, cultureInfo.NumberFormat); } } else if(instanceType == typeof(decimal)) { if(isEmpty) { result = 0M; } else { result = decimal.Parse(instanceValue, NumberStyles.Any, cultureInfo.NumberFormat); } } else if(instanceType == typeof(DateTime)) { if(isEmpty) { result = DateTime.MinValue; } else { result = Convert.ToDateTime(instanceValue, cultureInfo.DateTimeFormat); } } else if(instanceType == typeof(byte)) { if(isEmpty) { result = 0; } else { result = Convert.ToByte(instanceValue); } } else if(instanceType == typeof(double)) { if(isEmpty) { result = 0F; } else { result = double.Parse(instanceValue, NumberStyles.Any, cultureInfo.NumberFormat); } } else if(instanceType == typeof(float)) { if(isEmpty) { result = 0F; } else { result = float.Parse(instanceValue, NumberStyles.Any, cultureInfo.NumberFormat); } } else if(instanceType == typeof(bool)) { if(!isEmpty && instanceValue.ToLower() == "true" || instanceValue.ToLower() == "on" || instanceValue == "1") { result = true; } else { result = false; } } else if(instanceType == typeof(Guid)) { if(isEmpty) { result = Guid.Empty; } else { result = new Guid(instanceValue); } } else if(instanceType.IsEnum) { result = Enum.Parse(instanceType, instanceValue); } else if(instanceType == typeof(byte[])) { result = null; } else if(instanceType.Name.StartsWith("Nullable`")) { if(instanceValue.ToLower() == "null" || instanceValue == string.Empty) { result = null; } else { instanceType = Nullable.GetUnderlyingType(instanceType); result = GetInstance(instanceValue, instanceType); } } else { TypeConverter converter = TypeDescriptor.GetConverter(instanceType); if(converter != null && converter.CanConvertFrom(typeof(string))) { result = converter.ConvertFromString(null, cultureInfo, instanceValue); } else { throw (new InvalidCastException ( $"Type Conversion not handled in StringToTypedValue for {instanceType.Name}") ); } } return result; } #endregion |