Clearing a dataset?

jlwilliams1

Member
Joined
Mar 15, 2005
Messages
5
Programming Experience
1-3
I'm writing a windows service that periodically goes out to a SQL table and checks it for new records. I connect ok and fill the dataset ok, but how do I clear the dataset once I'm done with it? What's happening is that evertime the service goes to check the table, it fills the dataset, appending from the end. So if I start with 2 new records in the dataset, at the next check the dataset will have 4, then 6, etc.

I've tried using dataset.clear and dataset.Tables("tablename").Rows.Clear(), but neither seems to work.

Any clues or ideas?

Here's the code I'm using:

VB.NET:
SelectStatement = "SELECT * FROM Test WHERE Newrecord = 'Y'" cmd.CommandText = SelectStatement
 
cmd.CommandType = CommandType.Text
 
cmd.Connection = connect
 
da.SelectCommand = cmd
 
connect.Open()
 
ds.Clear()
 
da.Fill(ds, "Test")
 
If ds.Tables(0).Rows.Count <= 0 Then
 
da.SelectCommand.Connection.Close()
 
Exit Sub
 
End If
 
connect.Close()
 
numrecs = ds.Tables(0).Rows.Count
 
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