Object - ToNullableSByteOrDefault
An object extension method that converts this object to a nullable s byte or default.
public static void Main() { object val1 = 123; object val2 = "10986423210"; object thisNull = null; object thisInvalid = "A100"; string format = "{0, -20} {1, -15}"; Console.WriteLine(format, "Object", "ToNullableSByteOrDefault"); Console.WriteLine(format, "------", "------------------------"); // C# Extension Method: Object - ToNullableSByteOrDefault Console.WriteLine(format, val1, val1.ToNullableSByteOrDefault()); Console.WriteLine(format, val2, val2.ToNullableSByteOrDefault()); Console.WriteLine(format, "null", thisNull.ToNullableSByteOrDefault()); Console.WriteLine(format, thisInvalid, thisInvalid.ToNullableSByteOrDefault()); Console.WriteLine(format, thisInvalid, thisInvalid.ToNullableSByteOrDefault(-1)); Console.WriteLine(format, thisInvalid, thisInvalid.ToNullableSByteOrDefault(() => -2)); }
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using System; public static partial class Extensions { /// <summary> /// An object extension method that converts this object to a nullable s byte or default. /// </summary> /// <param name="this">The @this to act on.</param> /// <returns>The given data converted to a sbyte?</returns> public static sbyte? ToNullableSByteOrDefault(this object @this) { try { if (@this == null || @this == DBNull.Value) { return null; } return Convert.ToSByte(@this); } catch (Exception) { return default(sbyte); } } /// <summary> /// An object extension method that converts this object to a nullable s byte 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 a sbyte?</returns> public static sbyte? ToNullableSByteOrDefault(this object @this, sbyte? defaultValue) { try { if (@this == null || @this == DBNull.Value) { return null; } return Convert.ToSByte(@this); } catch (Exception) { return defaultValue; } } /// <summary> /// An object extension method that converts this object to a nullable s byte 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 a sbyte?</returns> public static sbyte? ToNullableSByteOrDefault(this object @this, Func<sbyte?> defaultValueFactory) { try { if (@this == null || @this == DBNull.Value) { return null; } return Convert.ToSByte(@this); } catch (Exception) { return defaultValueFactory(); } } }