[mapguide-users] Brain freeze Combining MgFeatureQueryOptions.SetFilter For filtering and MgFeatureQueryOptions.

[Scott Hameister]

OK Here goes the scenario….

i have a map that already has a selction made in it that contains objects on
multiple layers… Pipes, CLs, and WaterNodes (points themed BY a field of
ObjectType MH, Valve etc.)

I need mapguide to return a list of values from the "NODEIDS" field for only
selected items on the “WaterNodes” Layer Where the field "ObjectType" =
‘MH’.

Ive gotten this to work by going crazy iterating through the feature reader
and a layerFilter….But this is really inefficient and I know it isnt this
difficult…
I’m plain out missing something when trying to incorporate
MgFeatureQueryOptions.SetFilter For filtering and
MgFeatureQueryOptions.AddFeatureProperty for Limiting the properties
returned?
It seems I should be able to use these two functionalities to make this code
much more streamlined without having to iterate a feature reader to loop
through each object in the layer and then loop through each field on the
object….Seems like I should be able to do this with no loops and no feature
reader going through every object but I keep getting stonewalled I know Im
just having a Mental block…Any takers willing to push me past this Brain
Freeze?

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