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Definition.GetDataType

Description:
Gets a ForgeTypeId identifying the data type describing values of the parameter.

Remarks:
The returned ForgeTypeId may identify either a spec or a category. When it is a category, it indicates a Family Type parameter of that category. See Parameter.IsSpec(ForgeTypeId), UnitUtils.IsMeasurableSpec(ForgeTypeId), Category.IsBuiltInCategory(ForgeTypeId), and Parameter.IsValidDataType(ForgeTypeId).

public ForgeTypeId GetDataType()

Public Function GetDataType As ForgeTypeId

public:
ForgeTypeId^ GetDataType()

ForgeTypeId A ForgeTypeId identifying the data type of the parameter.

//Find parameter using the Parameter's definition data type.
public Parameter FindParameter(Element element)
{
    Parameter foundParameter = null;
    // This will find the first parameter that measures length
    foreach (Parameter parameter in element.Parameters)
    {
        if (parameter.Definition.GetDataType() == SpecTypeId.Length)
        {
            foundParameter = parameter;
            break;
        }
    }
    return foundParameter;
}

'Find parameter using the Parameter's definition data type.
Public Function FindParameter(element As Element) As Parameter
    Dim foundParameter As Parameter = Nothing
    ' This will find the first parameter that measures length
    For Each parameter As Parameter In element.Parameters
        If parameter.Definition.GetDataType() = SpecTypeId.Length Then
            foundParameter = parameter
            Exit For
        End If
    Next
    Return foundParameter
End Function

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Definition.GetDataType

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Return Value

Examples (from Revit 2023)

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