I need to read and update controls with the values they have the previous time the vi was run. Attached is a vi that I come up with. I can save control values; when I implement the section that should read and update control values, I keep getting this error "The XML tag describing the type of data does not match the wired type". Does any one know why? Attachment: test vi and xml control file.

As far as I can tell it appears you found a bug. The Unflatten From XML does not properly handle a cluster of a string and a variant of something. The Get All method returns an array of clusters, with each cluster being a string and a variant. If you do this: then no error is generated. But, if you do this: you get an error. Looks like a bug to me. Message Edited by smercurio_fc on 01-29-2010 11:49 PM

LabVIEW

save and read control value using xml

Solved!

There wasn't a workaround listed, but after playing with it for a bit, I found this one:

You can just place the variant inside of a cluster, and then bundle and then flatten to xml.

Marti C
Applications Engineer
National Instruments
NI Medical

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LabVIEW

save and read control value using xml

Re: save and read control value using xml