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How to Create a Unique Constraint for a Data Table ??

Hi,
Actually i have created a data grid, which gets an input from the data table.
Now i dont want to have the Duplicate values to be inserted in the grid.
So Please help out of this.....
Aug 7 '07 #1
1 1526
shweta123
692 Expert 512MB
Hi,

You can do it like this

Dim data_columns(1) As DataColumn
Dim unique_constraint As UniqueConstraint

data_columns(0) = m_dtPeople.Columns(columnname)

unique_constraint = New UniqueConstraint(data_columns)

'Add constrint to Datatable dt
dt.Constraints.Add(unique_constraint)
Aug 7 '07 #2

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