關於IList的排序

IList本身沒有Sort()功能，所以可以先把IList轉換爲List,通過List.Sort(比較器)來進行排序。

寫的比 較器：

 internal class ListComparer<T> : IComparer<T>
    ...{
        private string propertyName;

        public ListComparer(string PropertyName)
        ...{
            propertyName = PropertyName;
        }

        IComparer Members#region IComparer<T> Members
        public int Compare(T x, T y)
        ...{
            PropertyInfo property = typeof(T).GetProperty(propertyName);

            //int16
            if (property.PropertyType == Type.GetType("System.Int16"))
            ...{
                int xNumber = 0;
                int yNumber = 0;
                if (property.GetValue(x, null) != null)
                ...{
                    xNumber = Convert.ToInt16(property.GetValue(x, null).ToString());
                }

                if (property.GetValue(y, null) != null)
                ...{
                    yNumber = Convert.ToInt32(property.GetValue(y, null).ToString());
                }
                return xNumber.CompareTo(yNumber);
            }

            //int32
            if (property.PropertyType == Type.GetType("System.Int32"))
            ...{
                int xNumber = 0;
                int yNumber = 0;
                if (property.GetValue(x, null) != null)
                ...{
                    xNumber = Convert.ToInt32(property.GetValue(x, null).ToString());
                }
                if (property.GetValue(y, null) != null)
                ...{
                    yNumber = Convert.ToInt32(property.GetValue(y, null).ToString());
                }
                return xNumber.CompareTo(yNumber);
            }

            //double
            if (property.PropertyType == Type.GetType("System.Double"))
            ...{
                double xNumber = 0;
                double yNumber = 0;
                if (property.GetValue(x, null) != null)
                ...{
                    xNumber = Convert.ToDouble(property.GetValue(x, null).ToString());
                }
                if (property.GetValue(y, null) != null)
                ...{
                    yNumber = Convert.ToDouble(property.GetValue(y, null).ToString());
                }
                return xNumber.CompareTo(yNumber);
            }

            //DateTime
            if (property.PropertyType == Type.GetType("System.DateTime"))
            ...{
                DateTime xTime = DateTime.Now;
                DateTime yTime = DateTime.Now;
                if (property.GetValue(x, null) != null)
                ...{
                    xTime = Convert.ToDateTime(property.GetValue(x, null).ToString());
                }
                if (property.GetValue(y, null) != null)
                ...{
                    yTime = Convert.ToDateTime(property.GetValue(y, null).ToString());
                }
                return xTime.CompareTo(yTime);
            }

            //
            if ((property.PropertyType == Type.GetType("System.String")) || (property.PropertyType == Type.GetType("System.Boolean")))
            ...{
                string xText = string.Empty;
                string yText = string.Empty;
                if (property.GetValue(x, null) != null)
                ...{
                    xText = property.GetValue(x, null).ToString();
                }
                if (property.GetValue(y, null) != null)
                ...{
                    yText = property.GetValue(y, null).ToString();
                }
                return xText.CompareTo(yText);
            }
            return 0;
        }
        #endregion
    }

根據寫的比較器，首先將Ilist轉換爲LIst, 然後通過List.Sort(比較器)進行排序操作

 

List<ClickNumber> list1 = new List<ClickNumber>();
            list1 = (List<ClickNumber>)list;
            ListComparer<ClickNumber> listComparer = new ListComparer<ClickNumber>("ClickNum");
            list1.Sort(listComparer);
            //list1.Reverse();  
            this.dataGridView1.DataSource = list1;