If Then statement with Null Value

Visual Basic Programming

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March 19th, 2008, 02:14 PM

Datary

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If Then statement with Null Value

Does anyone know how to write the following statement correctly.

If [FieldName] is Null Then [DoThis]

In VBA it was - If IsNull(FieldName) Then [Do This]

Thanks

March 20th, 2008, 05:10 AM

sync_or_swim

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What happens when you use that logic, do you get an error?

What version of VB are you using? In VB6 your syntax is fine:

Code:

If IsNull(rs.Fields(0)) Then
     'the field is null!!
End If

If you are using .Net I think the command has been replaced with IsDBNull:

Code:

If IsDBNull(myDataSet.Tables(0).Item(0)) Then
     'the field is null!!
End If

Last edited by sync_or_swim : March 20th, 2008 at 05:13 AM.

April 2nd, 2008, 08:40 AM

swalker1595

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Code:

if (field name).lenght > 1 then

this may not be 100% correct but close very close

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