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Strongly Typed Dataset Question
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13/04/2007 11:24:13
Mike Cole
Yellow Lab Technologies
Stanley, Iowa, États-Unis
 
 
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Forum:
ASP.NET
Catégorie:
ADO.NET
Titre:
Strongly Typed Dataset Question
Versions des environnements
Environment:
VB.NET 1.1
Divers
Thread ID:
01215567
Message ID:
01215567
Vues:
61
So far this is my only complaint with Strongly Typed Datasets, and I hope it is just because of lack of knowledge.

My datarow contains a decimal type field which is Null. I need to convert it to a string. When I try dr.FieldName.ToString I get a runtime error because it is DBNull. When I try dr.Item("FieldName").ToString, it works and I end up with an empty string.

When I try IIF(dr.IsFieldNameNull,"",dr.FieldName), I get an runtime error because I am assuming it is evaluating both results.

Before I have done a full IF statement, but that is going to really suck doing that for every field that could be Null. What is the recommended way of handling this?

Thanks!
Very fitting: http://xkcd.com/386/
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