/// <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>
/// imageformatconverter.ConvertTo<int>(context, culture, value);
/// </example>
/// </summary>
public static T ConvertTo <T>(this ImageFormatConverter imageformatconverter, System.ComponentModel.ITypeDescriptorContext context, System.Globalization.CultureInfo culture, Object value)
{
if (imageformatconverter == null)
{
throw new ArgumentNullException("imageformatconverter");
}
return((T)imageformatconverter.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 ImageFormatConverter typeconverter, Object value)
{
if (typeconverter == null)
{
throw new ArgumentNullException("typeconverter");
}
return((T)typeconverter.ConvertTo(value, typeof(T)));
}
public void TestConvertTo_String()
{
Assert.Equal(_imageFmtStr, (string)_imgFmtConv.ConvertTo(null, CultureInfo.InvariantCulture, _imageFmt, typeof(string)));
Assert.Equal(_imageFmtStr, (string)_imgFmtConv.ConvertTo(_imageFmt, typeof(string)));
Assert.Equal(_imageFmtStr, (string)_imgFmtConvFrmTD.ConvertTo(null, CultureInfo.InvariantCulture, _imageFmt, typeof(string)));
Assert.Equal(_imageFmtStr, (string)_imgFmtConvFrmTD.ConvertTo(_imageFmt, typeof(string)));
Assert.Equal(string.Empty, (string)_imgFmtConv.ConvertTo(null, typeof(string)));
Assert.Equal(string.Empty, (string)_imgFmtConv.ConvertTo(null, CultureInfo.CreateSpecificCulture("ru-RU"), null, typeof(string)));
Assert.Equal(string.Empty, (string)_imgFmtConvFrmTD.ConvertTo(null, typeof(string)));
Assert.Equal(string.Empty, (string)_imgFmtConvFrmTD.ConvertTo(null, CultureInfo.CreateSpecificCulture("de-DE"), null, typeof(string)));
}
public void TestConvertTo_String()
{
Assert.Equal(_imageFmtStr, (string)_imgFmtConv.ConvertTo(null, CultureInfo.InvariantCulture, _imageFmt, typeof(string)));
Assert.Equal(_imageFmtStr, (string)_imgFmtConv.ConvertTo(_imageFmt, typeof(string)));
Assert.Equal(_imageFmtStr, (string)_imgFmtConvFrmTD.ConvertTo(null, CultureInfo.InvariantCulture, _imageFmt, typeof(string)));
Assert.Equal(_imageFmtStr, (string)_imgFmtConvFrmTD.ConvertTo(_imageFmt, typeof(string)));
}
public void TestConvertTo()
{
Assert.AreEqual(imageFmtStr, (String)imgFmtConv.ConvertTo(null,
CultureInfo.InvariantCulture,
imageFmt, typeof(String)), "CT#1");
Assert.AreEqual(imageFmtStr, (String)imgFmtConv.ConvertTo(imageFmt,
typeof(String)), "CT#1a");
try {
imgFmtConv.ConvertTo(null, CultureInfo.InvariantCulture,
imageFmt, typeof(ImageFormat));
Assert.Fail("CT#2: must throw NotSupportedException");
} catch (Exception e) {
Assert.IsTrue(e is NotSupportedException, "CT#2");
}
try {
imgFmtConv.ConvertTo(null, CultureInfo.InvariantCulture,
imageFmt, typeof(Guid));
Assert.Fail("CT#2a: must throw NotSupportedException");
} catch (Exception e) {
Assert.IsTrue(e is NotSupportedException, "CT#2a");
}
try {
imgFmtConv.ConvertTo(null, CultureInfo.InvariantCulture,
imageFmt, typeof(Object));
Assert.Fail("CT#3: must throw NotSupportedException");
} catch (Exception e) {
Assert.IsTrue(e is NotSupportedException, "CT#3");
}
try {
imgFmtConv.ConvertTo(null, CultureInfo.InvariantCulture,
imageFmt, typeof(int));
Assert.Fail("CT#4: must throw NotSupportedException");
} catch (Exception e) {
Assert.IsTrue(e is NotSupportedException, "CT#4");
}
Assert.AreEqual(imageFmtStr, (String)imgFmtConvFrmTD.ConvertTo(null,
CultureInfo.InvariantCulture,
imageFmt, typeof(String)), "CT#1A");
Assert.AreEqual(imageFmtStr, (String)imgFmtConvFrmTD.ConvertTo(imageFmt,
typeof(String)), "CT#1aA");
try {
imgFmtConvFrmTD.ConvertTo(null, CultureInfo.InvariantCulture,
imageFmt, typeof(ImageFormat));
Assert.Fail("CT#2A: must throw NotSupportedException");
} catch (Exception e) {
Assert.IsTrue(e is NotSupportedException, "CT#2A");
}
try {
imgFmtConvFrmTD.ConvertTo(null, CultureInfo.InvariantCulture,
imageFmt, typeof(Guid));
Assert.Fail("CT#2aA: must throw NotSupportedException");
} catch (Exception e) {
Assert.IsTrue(e is NotSupportedException, "CT#2aA");
}
try {
imgFmtConvFrmTD.ConvertTo(null, CultureInfo.InvariantCulture,
imageFmt, typeof(Object));
Assert.Fail("CT#3A: must throw NotSupportedException");
} catch (Exception e) {
Assert.IsTrue(e is NotSupportedException, "CT#3A");
}
try {
imgFmtConvFrmTD.ConvertTo(null, CultureInfo.InvariantCulture,
imageFmt, typeof(int));
Assert.Fail("CT#4A: must throw NotSupportedException");
} catch (Exception e) {
Assert.IsTrue(e is NotSupportedException, "CT#4A");
}
}