myString = myDatatable.Rows(1)(3).ToString() [retrieves the item from the second row and fourth column of the datatable]
Columns.RemoveAt(2) [deletes the third column of the datatable]*
doesContain = myDatatable.Columns.Contains("Total") [checks if datatable has a column named "Total" and returns true/false]
myIndex = myDatatable.Columns.IndexOf("Total") [returns the index of the column named "Total"]
drSelection = dt.Select("Lastname = 'Mayer'") [returns array of DataRows with all rows where the value of column "Lastname" is equal to "Mayer"]
drOrderedSelection = dt.Select("Lastname = 'Mayer'", "Age ASC") [returns an on column age ascendingly ordered array of DataRows with all rows where the value of column "Lastname" is equal to "Mayer"]
myRowString = String.Join(" | ", row.ItemArray.Select(Function(p) p.ToString())) [combines all values of a given DataRow to a string, values are seperated by " | "]
