CODEWITHSUNDEEP
vb.netobjectis-emptyisnullorempty
HartleySan
HartleySan

Reputation: 7830

How do I check for an empty object in VB?

How do I check for an empty object in VB? Specifically, a function may sometimes return the following:

Return {}

How I check whether {} is returned as compared to an object with properties and data? Thanks.

Upvotes: 0

Views: 4155

Answers (2)

Michal.S
Michal.S

Reputation: 531

For me Dim cellValue = DataRow.Item("SomeName") sets cellValue to {} So to check it:

If (VarType(cellValue) = vbNull) Then
    ...
End If

Upvotes: 0

the_lotus
the_lotus

Reputation: 12748

That just returns an empty array. The array will depend on the return type of the function or it will be Object(). Just check if .Length is equal to 0.

I assume you have Option Strict Off, you should turn it on :)

Upvotes: 4

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