/// <summary>
/// Tries to convert the specified object to a string. Uses custom type converters if available.
/// Returns null for a null object.
/// </summary>
/// <param name="o"></param>
/// <returns></returns>
public static string ConvertToString(object o)
{
if (o == null)
{
return(null);
}
// Get the type converter if available
if (o.GetType().IsEnum)
{
var enumConverter = new EnumStringValueTypeConverter();
return((string)enumConverter.ConvertTo(o, typeof(string)));
}
return(o.ToString());
}
public void DirectOperationTest()
{
var converter = new EnumStringValueTypeConverter();
// Check source type
Assert.IsTrue(converter.CanConvertFrom(typeof(Enum)));
Assert.IsTrue(converter.CanConvertFrom(typeof(MockEnum)));
Assert.IsTrue(converter.CanConvertFrom(typeof(MockEnum?)));
Assert.IsFalse(converter.CanConvertFrom(typeof(Boolean)));
Assert.IsFalse(converter.CanConvertFrom(typeof(EnumStringValueTypeConverter)));
// Check destination type
Assert.IsTrue(converter.CanConvertTo(typeof(string)));
Assert.IsFalse(converter.CanConvertTo(typeof(Boolean)));
Assert.IsFalse(converter.CanConvertTo(typeof(EnumStringValueTypeConverter)));
// Check conversion
Assert.AreEqual("FooBar", converter.ConvertTo(MockEnum.TestA, typeof(string)));
Assert.AreEqual("3.14159265358979323846", converter.ConvertTo(MockEnum.TestB, typeof(string)));
Assert.AreEqual("TestC", converter.ConvertTo(MockEnum.TestC, typeof(string)));
MockEnum? nullable = MockEnum.TestB;
Assert.AreEqual("3.14159265358979323846", converter.ConvertTo(nullable, typeof(string)));
}
