Question

hello I have this code that use to sort a datatable.

    Dim sortingIndex As Integer = orderby

    Dim DataTableNew As DataTable = New DataTable
    DataTableNew = dt.Clone

    Dim query = (From c In dt.AsEnumerable Order By c.Field(Of String)(sortingIndex) Ascending)
    query.CopyToDataTable(DataTableNew, LoadOption.OverwriteChanges)

My problem is that with this method I always need (Of String) for it to work, so the date columns are also managed as Strings witch is the problem. Is there a way to use the correct type so the sorting is based on the type of the column?

Answer 1

Linq rocks, but sometimes the good old methods are better. You can do

dt.Select(string.Empty,dt.Columns[sortingIndex].ColumnName)

It sorts the DataTable using the column’s data type.