Object - ToNullableUInt32OrDefault
An object extension method that converts this object to a nullable u int 32 or default.
public static void Main() { object val1 = 123; object val2 = "1090"; object thisNull = null; object thisInvalid = "A100"; string format = "{0, -20} {1, -15}"; Console.WriteLine(format, "Object", "ToNullableUInt32OrDefault"); Console.WriteLine(format, "------", "-------------------------"); // C# Extension Method: Object - ToNullableUInt32OrDefault Console.WriteLine(format, val1, val1.ToNullableUInt32OrDefault()); Console.WriteLine(format, val2, val2.ToNullableUInt32OrDefault()); Console.WriteLine(format, "null", thisNull.ToNullableUInt32OrDefault()); Console.WriteLine(format, thisInvalid, thisInvalid.ToNullableUInt32OrDefault()); Console.WriteLine(format, thisInvalid, thisInvalid.ToNullableUInt32OrDefault(1)); Console.WriteLine(format, thisInvalid, thisInvalid.ToNullableUInt32OrDefault(() => 2)); }
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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 32 or default. /// </summary> /// <param name="this">The @this to act on.</param> /// <returns>The given data converted to an uint?</returns> public static uint? ToNullableUInt32OrDefault(this object @this) { try { if (@this == null || @this == DBNull.Value) { return null; } return Convert.ToUInt32(@this); } catch (Exception) { return default(uint); } } /// <summary> /// An object extension method that converts this object to a nullable u int 32 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 uint?</returns> public static uint? ToNullableUInt32OrDefault(this object @this, uint? defaultValue) { try { if (@this == null || @this == DBNull.Value) { return null; } return Convert.ToUInt32(@this); } catch (Exception) { return defaultValue; } } /// <summary> /// An object extension method that converts this object to a nullable u int 32 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 uint?</returns> public static uint? ToNullableUInt32OrDefault(this object @this, Func<uint?> defaultValueFactory) { try { if (@this == null || @this == DBNull.Value) { return null; } return Convert.ToUInt32(@this); } catch (Exception) { return defaultValueFactory(); } } }