List<Person> lst = new List<Person>();
lst.Add(new Person("A", "1")); lst.Add(new Person("C", "2")); lst.Add(new Person("B", "3")); BindingCollection<Person> objList = new BindingCollection<Person>(); //加载数据 foreach (Person item in lst) { objList.Add(item); }DataGridViewTextBoxColumn GridView01NO=new DataGridViewTextBoxColumn();
DataGridViewTextBoxColumn GridView01Name=new DataGridViewTextBoxColumn();GridView01NO.HeaderText = "编号";
GridView01NO.Name = "strNo"; GridView01NO.DataPropertyName = "strNo";GridView01Name.HeaderText = "姓名";
GridView01Name.Name = "strName"; GridView01Name.DataPropertyName = "strName";dgv1.Columns.AddRange(new DataGridViewColumn[] {GridView01NO,GridView01Name, });
//dgv1.DataSource = objList; dgv1.DataSource = lst;
datagridview的数据源是list集合时，是不能排序的，不过调用了BindingCollection类后就可以了，
public class ObjectPRopertyCompare<T> : System.Collections.Generic.IComparer<T>
{ private PropertyDescriptor property; private ListSortDirection direction;public ObjectPRopertyCompare(PropertyDescriptor property, ListSortDirection direction)
{ this.property = property; this.direction = direction; }#region IComparer<T>
/// <summary>
/// 比较方法 /// </summary> /// <param name="x">相对属性x</param> /// <param name="y">相对属性y</param> /// <returns></returns> public int Compare(T x, T y) { object xValue = x.GetType().GetProperty(property.Name).GetValue(x, null); object yValue = y.GetType().GetProperty(property.Name).GetValue(y, null);int returnValue;
if (xValue is IComparable)
{ returnValue = ((IComparable)xValue).CompareTo(yValue); } else if (xValue.Equals(yValue)) { returnValue = 0; } else { returnValue = xValue.ToString().CompareTo(yValue.ToString()); }if (direction == ListSortDirection.Ascending)
{ return returnValue; } else { return returnValue * -1; } }public bool Equals(T xWord, T yWord)
{ return xWord.Equals(yWord); }public int GetHashCode(T obj)
{ return obj.GetHashCode(); }#endregion
} public class BindingCollection<T> : BindingList<T> { private bool isSorted; private PropertyDescriptor sortProperty; private ListSortDirection sortDirection;protected override bool IsSortedCore
{ get { return isSorted; } }protected override bool SupportsSortingCore
{ get { return true; } }protected override ListSortDirection SortDirectionCore
{ get { return sortDirection; } }protected override PropertyDescriptor SortPropertyCore
{ get { return sortProperty; } }protected override bool SupportsSearchingCore
{ get { return true; } }protected override void ApplySortCore(PropertyDescriptor property, ListSortDirection direction)
{ List<T> items = this.Items as List<T>;if (items != null)
{ ObjectPRopertyCompare<T> pc = new ObjectPRopertyCompare<T>(property, direction); items.Sort(pc); isSorted = true; } else { isSorted = false; }sortProperty = property;
sortDirection = direction;this.OnListChanged(new ListChangedEventArgs(ListChangedType.Reset, -1));
}protected override void RemoveSortCore()
{ isSorted = false; this.OnListChanged(new ListChangedEventArgs(ListChangedType.Reset, -1)); } //排序 public void Sort(PropertyDescriptor property, ListSortDirection direction) { this.ApplySortCore(property, direction); } }