Object - ToNullableUInt16OrDefault
An object extension method that converts this object to a nullable u int 16 or default.
public static void Main() { object val1 = 123; object val2 = "1090"; object thisInvalid = "A100"; object thisNull = null; string format = "{0, -30} {1, -15}"; Console.WriteLine(format, "Object", "ToNullableUInt16OrDefault"); Console.WriteLine(format, "------", "-------------------------"); // C# Extension Method: Object - ToNullableUInt16OrDefault Console.WriteLine(format, val1, val1.ToNullableUInt16OrDefault()); Console.WriteLine(format, val2, val2.ToNullableUInt16OrDefault()); Console.WriteLine(format, "null", thisNull.ToNullableUInt16OrDefault()); Console.WriteLine(format, thisInvalid, thisInvalid.ToNullableUInt16OrDefault()); Console.WriteLine(format, thisInvalid, thisInvalid.ToNullableUInt16OrDefault(0)); Console.WriteLine(format, thisInvalid, thisInvalid.ToNullableUInt16OrDefault(() => 0)); }
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using System; public static partial class Extensions { /// <summary> /// An object extension method that converts this object to a nullable u int 16 or default. /// </summary> /// <param name="this">The @this to act on.</param> /// <returns>The given data converted to an ushort?</returns> public static ushort? ToNullableUInt16OrDefault(this object @this) { try { if (@this == null || @this == DBNull.Value) { return null; } return Convert.ToUInt16(@this); } catch (Exception) { return default(ushort); } } /// <summary> /// An object extension method that converts this object to a nullable u int 16 or default. /// </summary> /// <param name="this">The @this to act on.</param> /// <param name="defaultValue">The default value.</param> /// <returns>The given data converted to an ushort?</returns> public static ushort? ToNullableUInt16OrDefault(this object @this, ushort? defaultValue) { try { if (@this == null || @this == DBNull.Value) { return null; } return Convert.ToUInt16(@this); } catch (Exception) { return defaultValue; } } /// <summary> /// An object extension method that converts this object to a nullable u int 16 or default. /// </summary> /// <param name="this">The @this to act on.</param> /// <param name="defaultValueFactory">The default value factory.</param> /// <returns>The given data converted to an ushort?</returns> public static ushort? ToNullableUInt16OrDefault(this object @this, Func<ushort?> defaultValueFactory) { try { if (@this == null || @this == DBNull.Value) { return null; } return Convert.ToUInt16(@this); } catch (Exception) { return defaultValueFactory(); } } }