List to DataTable:
public static DataTable ToDataTable<T>(IEnumerable<T> collection) { var props = typeof(T).GetProperties(); var dt = new DataTable(); dt.Columns.AddRange(props.Select(p => new DataColumn(p.Name, p.PropertyType)).ToArray()); if (collection.Count() > 0) { for (int i = 0; i < collection.Count(); i++) { ArrayList tempList = new ArrayList(); foreach (PropertyInfo pi in props) { object obj = pi.GetValue(collection.ElementAt(i), null); tempList.Add(obj); } object[] array = tempList.ToArray(); dt.LoadDataRow(array, true); } } return dt; } }
DataTable to List:
public class ModelConvertHelper<T> where T : new() { public static List<T> ConvertToModel(DataTable dt) { // Define the collection List<T> ts = new List<T> (); // Get the type of this model Type type = typeof (T); string tempName = "" ; foreach (DataRow dr in dt.Rows) { T t = new T(); // Get the public properties of this model PropertyInfo[] properties = t.GetType().GetProperties(); foreach (PropertyInfo pi in properties) { tempName = pi.Name; // Check if DataTable contains this column if (dt.Columns.Contains(tempName)) { // Determine whether this property has a Setter if (!pi.CanWrite) continue ; object value = dr[tempName]; if (value != DBNull.Value) pi.SetValue(t, value, null); } } ts.Add(t); } return ts; } }