Problem with GDB NULL values

DaveCouture — Wed, 20 Jun 2012 17:05:03 GMT

Any idea how I can get ArcMap to stop crashing, when getting NULL attribute values, from a GDB?

This code works, but not with NULLs:

Dim cursor As IFeatureCursor
Dim feature As IFeature
Dim taxname As Integer

cursor = featureLayer.Search(queryFilter, False)
feature = cursor.NextFeature

taxname = feature.Fields.FindField("taxname")
Me.TextBox2.Text = feature.Value(taxname)

Re: Problem with GDB NULL values

DaveCouture — Sun, 12 Dec 2021 01:43:59 GMT

Found a solution from there: http://forums.esri.com/Thread.asp?c=93&f=985&t=84492

If (feature.Value(taxname)) Is DBNull.Value Then
    Me.TextBox2.Text = ""
Else
    Me.TextBox2.Text = feature.Value(taxname)
End If

topic Re: Problem with GDB NULL values in ArcObjects SDK Questions

Problem with GDB NULL values

Re: Problem with GDB NULL values