安排名称使用LINQ作为数据表

Question

I have a datatable

public void CreatTable()
        {
            DataTable dt = new DataTable();
            dt.Columns.Add("First Name");
            dt.Columns.Add("Middle Name");
            dt.Columns.Add("Last Name");
            dt.Rows.Add("A", "B", "C");
            dt.Rows.Add("A1", "B1", "C1");
            dt.Rows.Add("A2", "B2", "C2");
            dt.Rows.Add("A3", "B3", "C3");
            dt.Rows.Add("A4", "B4", "C3");
        }

I want to arrangement this table sorted by Last Name > First Name > Middle Name using LINQ and save to another table (dt2) . Looking for help, thanks

Answer 1

You could use OrderBy and ThenBy extension methods.

var newTable = dt.AsEnumerable()
            .OrderBy(x=>x.Field<string>("Last Name"))
            .ThenBy(x=>x.Field<string>("First Name"))
            .ThenBy(x=>x.Field<string>("Middle Name"))
            .CopyToDataTable();

Check this Demo