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Mapper seems to identify the wrong types and disable the mapping by making the mouse pointer a "crossed-circle". This is good, but if we are mapping to a string, everything is fine. Anything can be mapped to a string. I am doing a date subtraction, and from the output of the subtraction operator I can't link a string node. Also on a different note it may be useful to tell the user why the editor isin't allowing him to do that.
Kiran, I think this the the feature of XPATH: everything can be implicitly casted to String (Nikita, correct if I'm wrong). There is another part related to indication of wrong mapping -- it's should be implemented.
Looks like there is some mis communication. I am saying (as well as you are) that mapper should allow anything to be connected to string. Current mapper doesn't do that, hence the bug.
Kiran, the mapper doesn't chack types now. So I wonder what do you mean by "mapping to a string". Maybe you faced with a special restriction: I prohibit linking to the input item of a methoid if it has text specified inside the inplace editor. There is unclear issue here still because the user can specify an empty string and is looks confusing now. The field looks like empty, the field's type isn't shown and it's impossible to connect a link to it. Unfortunately I haven't good idea about it yet.
Should be fixed. Please verify.
tested using caps6u1 11/11 build and tried to map from double to string and int to string and date to string and it allowed it and threw warning message that from and to a different types.