I have created a custom field type that allows users to pick a record from an external database. Everything is working great, but I would like to modify the display RenderPattern to display the value of the field as a hyperlink instead of just static text. I want the hyperlink to come from a custom property of the field.
The problem is, I cannot figure out how to make the custom field property show up as part of the RenderPattern. I have tried using the Property and FieldProperty elements. Both of these methods seem to work for standard field properties; for example, I have been able to get to the field's DisplayName property using the following CAML:
<Property Select='DisplayName' HTMLEncode="TRUE"/>
Unfortunately this method does not seem to work for custom field properties! Instead, only an empty string is returned. My custom property (which works fine otherwise) is defined in FLDTYPE_myfield.xml's PropertySchema section as:
<Field Name="MyLinkURL" DisplayName="My Link URL" Type="Text" Hidden="TRUE"/>
(by the way, I tried it with Hidden=False and that didn't help)
Any idea how to get to custom field properties from CAML
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