Object - ToInt32OrDefault
An object extension method that converts this object to an int 32 or default.
public static void Main() { object val1 = 123; object val2 = "1090"; object thisInvalid = "A100"; string format = "{0, -20} {1, -15}"; Console.WriteLine(format, "Object", "ToInt32OrDefault"); Console.WriteLine(format, "------", "----------------"); // C# Extension Method: Object - ToInt32OrDefault Console.WriteLine(format, val1, val1.ToInt32OrDefault()); Console.WriteLine(format, val2, val2.ToInt32OrDefault()); Console.WriteLine(format, thisInvalid, thisInvalid.ToInt32OrDefault()); Console.WriteLine(format, thisInvalid, thisInvalid.ToInt32OrDefault(-1)); Console.WriteLine(format, thisInvalid, thisInvalid.ToInt32OrDefault(() => -2)); }
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using System; public static partial class Extensions { /// <summary> /// An object extension method that converts this object to an int 32 or default. /// </summary> /// <param name="this">The @this to act on.</param> /// <returns>The given data converted to an int.</returns> public static int ToInt32OrDefault(this object @this) { try { return Convert.ToInt32(@this); } catch (Exception) { return default(int); } } /// <summary> /// An object extension method that converts this object to an 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 int.</returns> public static int ToInt32OrDefault(this object @this, int defaultValue) { try { return Convert.ToInt32(@this); } catch (Exception) { return defaultValue; } } /// <summary> /// An object extension method that converts this object to an int 32 or default. /// </summary> /// <param name="this">The @this to act on.</param> /// <param name="defaultValue">The default value.</param> /// <param name="useDefaultIfNull">true to use default if null.</param> /// <returns>The given data converted to an int.</returns> public static int ToInt32OrDefault(this object @this, int defaultValue, bool useDefaultIfNull) { if (useDefaultIfNull && @this == null) { return defaultValue; } try { return Convert.ToInt32(@this); } catch (Exception) { return defaultValue; } } /// <summary> /// An object extension method that converts this object to an 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 int.</returns> public static int ToInt32OrDefault(this object @this, Func<int> defaultValueFactory) { try { return Convert.ToInt32(@this); } catch (Exception) { return defaultValueFactory(); } } /// <summary> /// An object extension method that converts this object to an int 32 or default. /// </summary> /// <param name="this">The @this to act on.</param> /// <param name="defaultValueFactory">The default value factory.</param> /// <param name="useDefaultIfNull">true to use default if null.</param> /// <returns>The given data converted to an int.</returns> public static int ToInt32OrDefault(this object @this, Func<int> defaultValueFactory, bool useDefaultIfNull) { if (useDefaultIfNull && @this == null) { return defaultValueFactory(); } try { return Convert.ToInt32(@this); } catch (Exception) { return defaultValueFactory(); } } }