Gets or sets a value that indicates whether the values in each row of the column must be unique.
member Unique : bool with get, set
Type: System.Booleantrue if the value must be unique; otherwise, false. The default is false.
As soon as this property is changed from false to true, a unique constraint will be created on this column to make sure that values are unique.
The following example creates new DataColumn, sets its properties, and adds it to a table's columns collection.
No code example is currently available or this language may not be supported.
Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1
.NET Framework Client Profile
Supported in: 4, 3.5 SP1
Supported in: 3.0, 2.0, 1.0