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POWhy is this TypeConverter not working?
 

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  1. POWhy is this TypeConverter not working?
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    <p>I am trying to understand why the below code is not working as expected; the <code>TypeDescriptor</code> is simply not picking up the custom converter from the attributes. I can only assume I have made an obvious mistake but I cannot see it.</p> <p>-- edit -- this code seems to work when I run it in a console on its own, I'm actually calling a converter from within a much more complex application and from a different namespace.</p> <p>-- edit -- alternatively any suggestions on how I can debug the TypeDescriptor so I can see what is going on and then I can probably answer this myself.</p> <p>-- edit -- this problem is almost certainly related to pieces being in different assemblies.</p> <p>-- edit -- It looks like this is not working because of some quirk of loading assemblies dynamically - this code is running under a plugin like architecture.</p> <pre><code>using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Drawing; using System.ComponentModel; namespace MyTest { public class TestTester { public static void Main(string[] args) { object v = TypeDescriptor.GetConverter(typeof(MyTest.Test)).ConvertFromInvariantString("Test"); } } public class TestConverter : TypeConverter { public override bool GetStandardValuesSupported(ITypeDescriptorContext context) { return false; } public override bool CanConvertFrom(ITypeDescriptorContext context, System.Type sourceType) { if (sourceType == typeof(string) || base.CanConvertFrom(context, sourceType)) { return true; } return base.CanConvertFrom(context, sourceType); } public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) { if (destinationType == typeof(Test) || base.CanConvertTo(destinationType)) { return true; } return base.CanConvertTo(context, destinationType); } public override object ConvertFrom(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value) { if (value.GetType() == typeof(string)) { Test t = new Test(); t.TestMember = value as string; return t; } return base.ConvertFrom(context, culture, value); } public override object ConvertTo(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, Type destinationType) { if (destinationType == typeof(string) &amp;&amp; value.GetType() == typeof(Test)) { return ((Test)value).TestMember; } return base.ConvertTo(context, culture, value, destinationType); } } [TypeConverterAttribute(typeof(TestConverter))] public struct Test { public string TestMember { get; set; } } } </code></pre>
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