listview排序功能_listview用法

ListViewSorter listviewSort = new ListViewSorter();

this.lsv1.ListViewItemSorter = listviewSort;

this.lsv1.Sort();

class ListViewSorter : IComparer { private int columnToSort; private System.Windows.Forms.SortOrder sortKind ; private int columnNumbers ; public ListViewSorter() { columnToSort= 0; sortKind = System.Windows.Forms.SortOrder.Ascending; } public int Compare(object x, object y) { int compareResult; ListViewItem listviewX, listviewY; listviewX = (ListViewItem)x; listviewY = (ListViewItem)y; //第一項目排序

object[] x0Value = (object[])listviewX.SubItems[columnToSort].Tag; object[] y0Value = (object[])listviewY.SubItems[columnToSort].Tag; compareResult = string.CompareOrdinal(Convert.ToString(x0Value[2]), Convert.ToString(y0Value[2])); if (compareResult == 0) { compareResult = string.CompareOrdinal(Convert.ToString(x0Value[0]), Convert.ToString(y0Value[0])); if (compareResult == 0) { compareResult = string.CompareOrdinal(Convert.ToString(x0Value[3]), Convert.ToString(y0Value[3])); } } //第一項目相同时

if (compareResult == 0 && (columnNumbers == 1 || columnNumbers == 2)) { // 第二項目排序

object[] x1Value = (object[])listviewX.SubItems[columnToSort+ 1].Tag; object[] y1Value = (object[])listviewY.SubItems[columnToSort+ 1].Tag; compareResult = string.CompareOrdinal(Convert.ToString(x1Value[2]), Convert.ToString(y1Value[2])); if (compareResult == 0) { compareResult = string.CompareOrdinal(Convert.ToString(x1Value[0]), Convert.ToString(y1Value[0])); if (compareResult == 0) { compareResult = string.CompareOrdinal(Convert.ToString(x1Value[3]), Convert.ToString(y1Value[3])); } } //第二項目相同时

if (compareResult == 0 && columnNumbers == 2) { // 第三項目排序

object[] x2Value = (object[])listviewX.SubItems[columnToSort+ 2].Tag; object[] y2Value = (object[])listviewY.SubItems[columnToSort+ 2].Tag; compareResult = string.CompareOrdinal(Convert.ToString(x2Value[2]), Convert.ToString(y2Value[2])); if (compareResult == 0) { compareResult = string.CompareOrdinal(Convert.ToString(x2Value[0]), Convert.ToString(y2Value[0])); if (compareResult == 0) { compareResult = string.CompareOrdinal(Convert.ToString(x2Value[3]), Convert.ToString(y2Value[3])); } } } } if (sortKind == System.Windows.Forms.SortOrder.Ascending) { return compareResult; } else if (sortKind == System.Windows.Forms.SortOrder.Descending) { return (-compareResult); } }

public int Columnnumbers { set { columnNumbers = value; } } }

ListView排序时,设置一下ListView的ListViewItemSorter属性就可以了,ListViewItemSorter属性的类型是IComparer类型,所以实现一下IComparer接口就行了,里面的排序方法可以根据自己的需要写.

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