RE: MI MapX newbie question: using unbound data in a point layer

[Mats Johansson]

Answering my own question, there's an error in the MapX documentation. There's a Done=False missing in the Request Data event in the example of doing unbound data binding.

 

cheers,

 

Mats Johansson

 

 

>Hi!
>I'm obviously new to MapX, and really not a GIS person. However, >I need to get this particular thing to work:
>
>I have a point maplayer, consisting of train stations. I'd

>like to use a variantarray of station data and create an unbound

>dataset, binding the data to the train stations. I think I've succeeded

>to create the dataset correctly, but when I create a

>GradSymbol theme, the data doesn't show in the map (I'd like to

>get a symbol to the side of each and every station in the

>variantarray). What am I doing wrong?
>
>The code looks like this:
>
>   m_vntData(1, 1) = "station 1"
>    m_vntData(1, 2) = 20000
>    m_vntData(2, 1) = "station 2"
>    m_vntData(2, 2) = 50000
>    m_vntData(3, 1) = "station 3"
>    m_vntData(3, 2) = 80000
>    m_vntData(4, 1) = "station 4"
>    m_vntData(4, 2) = 120000
>
>   flds.Add "station", "sign", miAggregationIndividual, >miTypeString
>    flds.Add "amount", "amount", miAggregationSum, miTypeNumeric
>
>   Set ds = mapSverige.Datasets.Add(miDataSetUnbound, Nothing, "Stationdataset", 1, , "station", flds)
>    ds.Themes.Add miThemeGradSymbol, "amount", "swetheme"
>
>
>Obviously I must be doing something wrong, does anyone have a >clue?
>
>TIA,
>
>Mats Johansson
>