private void UpdatePropertyValue()

in src/BehaviorsSDKManaged/Microsoft.Xaml.Interactions/Core/ChangePropertyAction.cs [120:170]
47 lines of code
9 McCabe index (conditional complexity)

        private void UpdatePropertyValue(object targetObject)
        {
            Type targetType = targetObject.GetType();
            PropertyInfo propertyInfo = targetType.GetRuntimeProperty(this.PropertyName.Path);
            this.ValidateProperty(targetType.Name, propertyInfo);

            Exception innerException = null;
            try
            {
                object result = null;
                string valueAsString = null;
                Type propertyType = propertyInfo.PropertyType;
                TypeInfo propertyTypeInfo = propertyType.GetTypeInfo();
                if (this.Value == null)
                {
                    // The result can be null if the type is generic (nullable), or the default value of the type in question
                    result = propertyTypeInfo.IsValueType ? Activator.CreateInstance(propertyType) : null;
                }
                else if (propertyTypeInfo.IsAssignableFrom(this.Value.GetType().GetTypeInfo()))
                {
                    result = this.Value;
                }
                else
                {
                    valueAsString = this.Value.ToString();
                    result = propertyTypeInfo.IsEnum ? Enum.Parse(propertyType, valueAsString, false) :
                        TypeConverterHelper.Convert(valueAsString, propertyType.FullName);
                }

                propertyInfo.SetValue(targetObject, result, new object[0]);
            }
            catch (FormatException e)
            {
                innerException = e;
            }
            catch (ArgumentException e)
            {
                innerException = e;
            }

            if (innerException != null)
            {
                throw new ArgumentException(string.Format(
                    CultureInfo.CurrentCulture,
                    ResourceHelper.ChangePropertyActionCannotSetValueExceptionMessage,
                    this.Value != null ? this.Value.GetType().Name : "null",
                    this.PropertyName,
                    propertyInfo.PropertyType.Name),
                    innerException);
            }
        }