ArcObjects C#: Return field domain code vs value

JuneAcosta — Sat, 11 Dec 2021 15:04:28 GMT

HI all,

I inherited a .NET class extension that provides a form so our techs can add/modify features and/or attributes. I had to add several fields to an existing layer which have to go on the form as a combo box. These new fields get populated based on the values that get returned from an overlay function. The overlay function is returning the domain code value instead of the code, so its returning the value "Aqua Hedionda Tributary" instead of the code "AHT". When the next function tries to populate the field with "Aqua Hedionda Tributary" it gets ignored as if it doesn't recognize the value, even though the dropdown list is populated with all of the code values from the field's domain.

These functions already exist, I'm just adding additional fields and layers for overlay and to be populated via the form.

Can anyone tell me what the issue is?

Why in the overlay function do some features return the code and some features return the value?
Why can't I pass the domain value to populate the comboBox.selectedValue.

Here's the code....

This call the overlay function

obj.Value(obj.Fields.FindField(Globals.SoCalWetlandType)) = Globals.overlayFC(obj, overlaySoCalWetland, "WetType")

This is the overlay function

 Public Function overlayFC(ByRef obj As IObject, ByRef layerName As String, ByRef fieldname As String) As String
        Dim pWorkspace As IWorkspace
        Dim pObjectClass As IObjectClass
        Dim pdataset As IDataset
        Dim pFC As IFeatureClass
        Dim pFeatCursor As IFeatureCursor
        Dim pFeat As IFeature
        Dim result As String = Nothing
        Dim i As Int32 = 0


        pObjectClass = obj.Class
        pdataset = CType(pObjectClass, IDataset)
        pWorkspace = pdataset.Workspace
        pFC = OpenFC(pWorkspace, layerName)
        Dim pSP As ISpatialFilter
        pSP = New SpatialFilter
        pSP.Geometry = CType(obj.Value(obj.Fields.FindField("Shape")), IGeometry5)
        pSP.SpatialRel = esriSpatialRelEnum.esriSpatialRelIntersects
        pSP.GeometryField = pFC.ShapeFieldName
        pFeatCursor = pFC.Search(pSP, True)
        pFeat = pFeatCursor.NextFeature()
        Do Until pFeat Is Nothing
            'If i > 0 Then result = result + ", "
            result = result + pFeat.Value(pFeat.Fields.FindField(fieldname)).ToString
            'i = i + 1
            
            pFeat = pFeatCursor.NextFeature()
        Loop
        
        Return result
  



  Function

This is the form where the cbo boxes get populated with the domains and where the values from the overlay function get passed as the selected value.

Public Property frmTarget() As IObject


        'This property is a reference to the feature being created or edited. When the feature is selected then 
        'this  property gets updated by the parent class extension. When this happens the data entry fields are updated
        'by this section
        Get
            Return _object
        End Get
        Set(ByVal value As ESRI.ArcGIS.Geodatabase.IObject)
            _object = value
            If Not _object Is Nothing Then
                If Not m_bCombosFilled Then
                    
                    '********************************
                    'Dim RecName = "AHCT"
                    'Dim SoCalType = "FLUV"
                    '***********************************************
                    '1.5.15 JPA - populated by overlay
                    m_dctDomainValueHolder = Globals.getDomainArray(_object, Globals.SoCalWetlandType)
                    m_bsSoCalWetlandType.DataSource = m_dctDomainValueHolder
                    With cboSoCalWetlandType
                        .DisplayMember = "Key"
                        .ValueMember = "Value"
                        .DataSource = m_bsSoCalWetlandType
                    End With
                    'cboReceiveWaterBuffer.SelectedIndex = -1
                    'cboSoCalWetlandType.SelectedValue = SoCalType
                    cboSoCalWetlandType.SelectedValue = _object.Value(_object.Fields.FindField(Globals.SoCalWetlandType)).ToString


                End if    
            End If
        End Set
    End Property

Re: ArcObjects C#: Return field domain code vs value

FreddieGibson — Mon, 07 Dec 2015 05:36:17 GMT

I'll have to take a look at this one when I get to the office tomorrow, but this is what I'm thinking right now. Let's say that you had a domain with the following information.

Code	Value
No	0
Yes	1
Maybe	2

Let's call this domain "UserResponse" and say that the type of the field that stores the value is Integer, but we're displaying strings for the codes. I would expect that if I were to use a cursor to grab the values from the database that it would return the actual value of the field (i.e. the integer values of 0, 1, or 2) instead of the coded value string.

I know that if we were to edit these values in ArcMap that we could pick the coded value strings from the dropdown and the software would convert them to their actual values, but I'm not sure if a cursor would natively do the same thing.

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ArcObjects C#: Return field domain code vs value

Re: ArcObjects C#: Return field domain code vs value