ListView 日期,数字,字符排序
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private void listView_ColumnClick(object sender, ColumnClickEventArgs e)
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{
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int sortColumn = e.Column;
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ListView listView = (ListView)sender;
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if (listView.Name == "listView2")
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{
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if (listView2.Sorting == SortOrder.Ascending)
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listView2.Sorting = SortOrder.Descending;
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else
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listView2.Sorting = SortOrder.Ascending;
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this.listView2.ListViewItemSorter = new ListViewItemComparer(e.Column, listView2.Sorting);
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}
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else if (listView.Name == "listView3")
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{
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if (listView3.Sorting == SortOrder.Ascending)
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listView3.Sorting = SortOrder.Descending;
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else
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listView3.Sorting = SortOrder.Ascending;
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this.listView3.ListViewItemSorter = new ListViewItemComparer(e.Column, listView3.Sorting);
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}
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else if (listView.Name == "listView4")
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{
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if (listView4.Sorting == SortOrder.Ascending)
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listView4.Sorting = SortOrder.Descending;
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else
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listView4.Sorting = SortOrder.Ascending;
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this.listView4.ListViewItemSorter = new ListViewItemComparer(e.Column, listView4.Sorting);
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}
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else if (listView.Name == "listView5")
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{
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if (listView5.Sorting == SortOrder.Ascending)
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listView5.Sorting = SortOrder.Descending;
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else
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listView5.Sorting = SortOrder.Ascending;
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this.listView5.ListViewItemSorter = new ListViewItemComparer(e.Column, listView5.Sorting);
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}
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}
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class ListViewItemComparer : System.Collections.IComparer
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{
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private int col;
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private SortOrder order;
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public ListViewItemComparer()
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{
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col = 0;
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order = SortOrder.Ascending;
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}
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public ListViewItemComparer(int column, SortOrder order)
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{
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col = column;
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this.order = order;
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}
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public int Compare(object x, object y)
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{
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int returnVal;
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decimal w;
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DateTime r;
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bool k = Decimal.TryParse(((ListViewItem)x).SubItems[col].Text, out w);
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bool s = DateTime.TryParse(((ListViewItem)x).SubItems[col].Text, out r);
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if (k == true && order != SortOrder.Descending)//数字正排序
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{
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Decimal k1 = Int32.Parse(((ListViewItem)x).SubItems[col].Text);
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Decimal k2 = Int32.Parse(((ListViewItem)y).SubItems[col].Text);
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if (k2 > k1)
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returnVal = -1;
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if (k2 < k1)
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returnVal = 1;
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else
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returnVal = 0;
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}
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else
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{
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if (s == true)//时间排序
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{
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System.DateTime firstDate = DateTime.Parse(((ListViewItem)x).SubItems[col].Text);
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System.DateTime secondDate = DateTime.Parse(((ListViewItem)y).SubItems[col].Text);
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returnVal = DateTime.Compare(firstDate, secondDate);
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}
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else//字符排序
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{
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returnVal = String.Compare(((ListViewItem)x).SubItems[col].Text,
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((ListViewItem)y).SubItems[col].Text);
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}
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}
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if (order == SortOrder.Descending)
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{
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if (k == true)//数字倒排序
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{
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System.Int32 k3 = Int32.Parse(((ListViewItem)x).SubItems[col].Text);
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System.Int32 k4 = Int32.Parse(((ListViewItem)y).SubItems[col].Text);
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if (k3 > k4)
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returnVal = 1;
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if (k3 < k4)
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returnVal = -1;
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else
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returnVal = 0;
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}
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returnVal *= -1;
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}
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return returnVal;
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}
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}
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