Question

Trying to select fields where ‘Expected Closure Date’ is less than todays date, and deleting them from the table. However getting error like Missing operand after ‘closure’ operator.

DateTime Tdy=DateTime.Now;
 var rows = dt.Select("Expected closure date < "+Tdy+"");
 foreach (var row in rows)
         row.Delete(); 

Answer 1

This is what you need , Tested

var rows = dt.Select(string.Format("[Expected closure date] < '{0}'", Tdy));

---

Here is full working sample

using System;
using System.Data;


namespace ConsoleApplication5
{
  class Program
  {    

    static void Main(string[] args)
    {
      DataTable dt = new DataTable();
      string col = "Expected closure date";
      dt.Columns.Add(col,typeof(DateTime));

      dt.Rows.Add(DateTime.Now.AddDays(-1) );

      Console.WriteLine("Total rows in dt " + dt.Rows.Count);

      DateTime Tdy = DateTime.Now;
      var rows = dt.Select(string.Format("[Expected closure date] <= '{0}'", Tdy));
      foreach (var row in rows)
        row.Delete();
      Console.WriteLine("Total rows in dt " + dt.Rows.Count);

      Console.ReadLine();

    }
  }
}

---

Here is output

Total rows in dt 1
Total rows in dt 0