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C#中加强ListView控件的功能_[Asp.Net教程]

Writer: delv Article type: Programming skills(编程技巧) Time: 2014/1/10 6:29:02 Browse times: 330 Comment times: 0

C#中加强ListView控件的功能_[Asp.Net教程]


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C#中加强ListView控件的功能_[Asp.Net教程] 首先是实现ListView控件的自定义排序,订阅ListView控件的ColumnClick事件

private void listView1_ColumnClick(object sender, ColumnClickEventArgs e)
{
 if (this.listView1.Columns[e.Column].Tag == null)
  this.listView1.Columns[e.Column].Tag = true;
  bool tabK = (bool)this.listView1.Columns[e.Column].Tag;
 if (tabK)
  this.listView1.Columns[e.Column].Tag = false;
 else
  this.listView1.Columns[e.Column].Tag = true;
  this.listView1.ListViewItemSorter = new ListViewSort(e.Column, this.listView1.Columns[e.Column].Tag); 
  //指定排序器并传送列索引与升序降序关键字
  this.listView1.Sort();//对列表进行自定义排序
}


  排序类的定义:

///
///自定义ListView控件排序函数
///


class ListViewSort : IComparer
{
 private int col;
 private bool descK;

 public ListViewSort()
 {
  col = 0;
 }
 public ListViewSort(int column, object Desc)
 {
  descK = (bool)Desc;
  col = column; //当前列,0,1,2...,参数由ListView控件的ColumnClick事件传递
 }
 public int Compare(object x, object y)
 {
  int tempInt = String.Compare(((ListViewItem)x).SubItems[col].Text, ((ListViewItem)y).SubItems[col].Text);
  if (descK) return -tempInt;
  else return tempInt;
 }
}
  上面的ListView控件的自定义排列,即单击ListView控件的标题时进行排序

  下面将实现ListView控件的最后一列的去除,即自动调整合适的大小

  首先写一个调整ListView控件列宽的函数

///
///自动调整listView控件最后一列的列宽
///

///
///

private void 调整LV列宽()
{
 listView1.ColumnWidthChanged -= new ColumnWidthChangedEventHandler(listView1_ColumnWidthChanged);
 备注.AutoResize(ColumnHeaderAutoResizeStyle.HeaderSize);
 listView1.ColumnWidthChanged += new ColumnWidthChangedEventHandler(listView1_ColumnWidthChanged);
}
  上面的备注列是listview控件的最后一列的名称,而listview控件的实例名为listView1

  然后订阅ListView控件的ColumnWidthChanged事件,即列宽改变时自动调整列宽

///
/// listview列宽改变事件函数
///

///
///

void listView1_ColumnWidthChanged(object sender, ColumnWidthChangedEventArgs e)
{
 调整LV列宽();
}


  再订阅ListView控件的Size_Change事件,即窗口大小被改变时调整列宽

void listView1_SizeChanged(object sender, EventArgs e)
{
 调整LV列宽();
}
  最后在窗体的Shown事件中调整ListView控件的列宽,即第一次显示的时候马上调整列宽

private void 商品管理_Shown(object sender, EventArgs e)
{
 调整LV列宽();
}

来源:网络





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