Select distinct rows from a DataTable

It is probably best to describe a scenario to understand what I am trying to describe. Let's assume you have a DataTable called myDataTable that has three columns (Col1, Col2, Col3). You want to get a distinct list based on Col1 and Col2. In SQL you could do something like: Select distinct Col1, Col2 from MyTable; Believe it or not, we can do the same thing with the in memory table known as a DataTable in .Net. // populate the DataTable DataTable myDataTable = DAL.doSomeQuery();

bool distinct = true;

DataTable distinctRows = myDataTable.DefaultView.ToTable(distinct, new string[] { "Col1", "Col2" }); That is it, but it is only available in .Net 2.0.