Object - ToNullableDouble
An object extension method that converts the @this to a nullable double.
public static void Main() { object[] values = { true, null, 'a', 123, 1.764e32, "9.78", "1e-02", 1.67e03, "A100", "1,033.67", DateTime.Now, Double.MaxValue }; foreach (object value in values) { try { //C# Extension Method: Object - ToNullableDouble double? result = value.ToDouble(); Console.WriteLine("Converted the {0} value {1} to {2}.", value == null ? "null" : value.GetType().Name, value == null ? "null" : value, result == null ? "null" : result.ToString()); } catch (FormatException) { Console.WriteLine("The {0} value {1} is not recognized as a valid Double value.", value == null ? "null" : value.GetType().Name, value); } catch (InvalidCastException) { Console.WriteLine("Conversion of the {0} value {1} to a Double is not supported.", value == null ? "null" : value.GetType().Name, value); } } }
View Source
using System; public static partial class Extensions { /// <summary> /// An object extension method that converts the @this to a nullable double. /// </summary> /// <param name="this">The @this to act on.</param> /// <returns>@this as a double?</returns> public static double? ToNullableDouble(this object @this) { if (@this == null || @this == DBNull.Value) { return null; } return Convert.ToDouble(@this); } }