/// <summary>
/// Extends ConvertTo so that methods that return a specific type object given a Type parameter can be
/// used as generic method and casting is not required.
/// <example>
/// imageindexconverter.ConvertTo<int>(context, culture, value);
/// </example>
/// </summary>
public static T ConvertTo <T>(this ImageIndexConverter imageindexconverter, System.ComponentModel.ITypeDescriptorContext context, System.Globalization.CultureInfo culture, Object value)
{
if (imageindexconverter == null)
{
throw new ArgumentNullException("imageindexconverter");
}
return((T)imageindexconverter.ConvertTo(context, culture, value, typeof(T)));
}
/// <summary>
/// Extends ConvertTo so that methods that return a specific type object given a Type parameter can be
/// used as generic method and casting is not required.
/// <example>
/// typeconverter.ConvertTo<int>(value);
/// </example>
/// </summary>
public static T ConvertTo <T>(this ImageIndexConverter typeconverter, Object value)
{
if (typeconverter == null)
{
throw new ArgumentNullException("typeconverter");
}
return((T)typeconverter.ConvertTo(value, typeof(T)));
}
public void TestConvertTo()
{
Assert.AreEqual("(none)", ic.ConvertTo(null, CultureInfo.InvariantCulture, -1, typeof(string)), "ConvertInt_Minus1_ToStr");
Assert.AreEqual("0", ic.ConvertTo(null, CultureInfo.InvariantCulture, 0, typeof(string)), "ConvertInt_0_ToStr");
Assert.AreEqual("1", ic.ConvertTo(null, CultureInfo.InvariantCulture, 1, typeof(string)), "ConvertInt_1_ToStr");
Assert.AreEqual(0, ic.ConvertTo(null, CultureInfo.InvariantCulture, 0, typeof(int)), "ConvertInt_0_ToInt");
Assert.AreEqual("(none)", ic.ConvertTo(null, CultureInfo.InvariantCulture, "(none)", typeof(string)), "ConvertStr_none_ToStr");
Assert.AreEqual("-1", ic.ConvertTo(null, CultureInfo.InvariantCulture, "-1", typeof(string)), "ConvertStr_Minus1_ToStr");
Assert.AreEqual(-1, ic.ConvertTo(null, CultureInfo.InvariantCulture, -1, typeof(int)), "ConvertInt_Minus1_ToInt");
Assert.AreEqual(1, ic.ConvertTo(null, CultureInfo.InvariantCulture, 1, typeof(int)), "ConvertInt_1_ToInt");
Assert.AreEqual(-1, ic.ConvertTo(null, CultureInfo.InvariantCulture, "-1", typeof(int)), "ConvertStr_Minus1_ToInt");
Assert.AreEqual(0, ic.ConvertTo(null, CultureInfo.InvariantCulture, "0", typeof(int)), "ConvertStr_0_ToInt");
Assert.AreEqual(1, ic.ConvertTo(null, CultureInfo.InvariantCulture, "1", typeof(int)), "ConvertStr_1_ToInt");
Assert.AreEqual(2, ic.ConvertTo(null, CultureInfo.InvariantCulture, 1.5f, typeof(int)), "ConvertFloat_1_5_ToInt must return 2.");
try {
ic.ConvertTo(null, CultureInfo.InvariantCulture, "-1.5f", typeof(int));
Assert.Fail("ConvertFloatStrToInt must throw exception.");
} catch (Exception e) {
Assert.IsTrue(e is FormatException, "ConvertFloatStrToInt must throw FormatException.");
}
Assert.AreEqual(1.5, ic.ConvertTo(null, CultureInfo.InvariantCulture, 1.5f, typeof(float)), "ConvertFloat_1_5_ToFloat");
}