原型：

private List
     
      
       > lstData = new List
       
        
         >();
        
       
      
     

集合添加数据，重复的自动去掉

 

for (int i = 0; i < listView.Items.Count; i++)                {                    //获取list控件的集合                    Dictionary
     
       dicData = new Dictionary
      
       ();                    dicData.Add(this.listView.Items[i].SubItems[2].Text, this.listView.Items[i].SubItems[3].Text);                    if (lstData.Exists(x => {                        foreach (var name in x.Keys)                        {                            if (name == this.listView.Items[i].SubItems[2].Text)                            {                                return true;                            }                        }                        return false;})                        )                    {                        continue;                    }                    lstData.Add(dicData);                }