Check if a value already exist in a datagridview

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Hi,

Can somebody help me out?

I am adding values to a datagridview from a label. But before i insert the value, i want to check if the value does not already exist in the datagridview. I am stack. Need help.

Thanks in advance.

Posted 27-Jun-10 12:12pm

Kofi Ambrose

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shukla dhaval · Answer 1 · 2010-06-27T18:48:00

You can make query on assign dataset which is assign with datagridview. for example.

dim ds as new dataset
Dim da as new oledb.OledbDataAdapter("Select * from table1",conn)
da.Fill(ds)

DataGridView1.DataSource = ds.Table(0)

'Now if you want to check that record is all ready exists of not.
dim dr as datarow()
dr = ds.Table(0).select("SearchFieldName = " & 'SearchValue)
if dr.Length >0 then 
   Messagebox.show("Duplicate Record")
end if