How to transfer Combobox (selected) item to Parameter value? (VB api)

[bdijkstra]

I'm trying to get an selected item from a ComboBox to an specific Parameter value:

ComboBox1.text=ComboBox1.SelectedItem.Value   

parameter(12) = mdl.GetParam("Parameter1")

pvalue(12) = (New CMpfcModelItem).CreateStringParamValue(ComboBox1.Text)

CType(parameter(12), pfcls.IpfcBaseParameter).Value = pvalue(12)

Now I'm getting the following Toolkit Error:

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[huggre]

Without seeing any declerations of your objects and variables the error can pretty much be anything.

parameter(12) indicates some type of array but i can not see the type

Try something like this...

Dim CBText as String = ComboBox1.text

Dim parameter As IpfcParameter

Dim paramValue As IpfcParamValue

parameter = mdl.GetParam("Parameter1")

' Get param type
Dim type As String = PDUtils.getTypeFromParam(CType(parameter, IpfcBaseParameter).Value)

' Create param value
paramValue = PDUtils.createParamValue(CBText, type)
 
' Set param value
CType(parameter, IpfcBaseParameter).Value = paramValue