CanConvertFrom() public method

Returns True when sourceType is a String or Int32.
public CanConvertFrom ( ITypeDescriptorContext context, Type sourceType ) : bool
context ITypeDescriptorContext Additional context for conversion.
sourceType System.Type The type of the source object.
return bool
EncodingConverter Class Documentation
示例#1
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        public void ConvertFromStringPropertyName()
        {
            var converter = new EncodingConverter();
            Assert.IsTrue(converter.CanConvertFrom(typeof(string)), "Cannot convert from a string.");

            var value = (Encoding)converter.ConvertFrom("UTF8");
            Assert.AreEqual<Encoding>(Encoding.UTF8, value, "Could not convert from a string.");
        }
示例#2
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        public void ConvertFromNull()
        {
            var converter = new EncodingConverter();
            Assert.IsTrue(converter.CanConvertFrom(typeof(string)), "Cannot convert from a string.");

            var value = (Encoding)converter.ConvertFrom(null);
            Assert.AreEqual<Encoding>(Encoding.Default, value, "Could not convert from a null string.");
        }
示例#3
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        public void ConvertFromIntegerCodePage()
        {
            var converter = new EncodingConverter();
            Assert.IsTrue(converter.CanConvertFrom(typeof(int)), "Cannot convert from an integer.");

            var value = (Encoding)converter.ConvertFrom(65001);
            Assert.AreEqual<Encoding>(Encoding.UTF8, value, "Could not convert from an integer.");
        }
示例#4
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        public void ConvertFromIntegerCodePage()
        {
            var converter = new EncodingConverter();

            Assert.IsTrue(converter.CanConvertFrom(typeof(int)), "Cannot convert from an integer.");

            var value = (Encoding)converter.ConvertFrom(65001);

            Assert.AreEqual <Encoding>(Encoding.UTF8, value, "Could not convert from an integer.");
        }
示例#5
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        public void ConvertFromNull()
        {
            var converter = new EncodingConverter();

            Assert.IsTrue(converter.CanConvertFrom(typeof(string)), "Cannot convert from a string.");

            var value = (Encoding)converter.ConvertFrom(null);

            Assert.AreEqual <Encoding>(Encoding.Default, value, "Could not convert from a null string.");
        }
示例#6
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        public void ConvertFromStringEncodingName()
        {
            var converter = new EncodingConverter();

            Assert.IsTrue(converter.CanConvertFrom(typeof(string)), "Cannot convert from a string.");

            var value = (Encoding)converter.ConvertFrom("utf-8");

            Assert.AreEqual <Encoding>(Encoding.UTF8, value, "Could not convert from a string.");
        }