ListBox操作2007-4-29

1. 单项移动
   

 1            ListItem[] myListItemArray1  = new ListItem[ListBox1.Items.Count];
 2            ListItem[] myListItemArray2  = new ListItem[ListBox2.Items.Count];
 3            ListBox1.Items.CopyTo(myListItemArray1, 0);
 4            
 5            ListBox2.Items.CopyTo(myListItemArray2,0);     
 6            ArrayList list1 = new ArrayList();
 7           ArrayList list2 = new ArrayList();
 8            for(int i=0;i<myListItemArray1.Length;i++)
 9            {
10                list1.Add(myListItemArray1[i]);
11            }
12            
13            for(int i=0;i<myListItemArray2.Length;i++)
14            {
15                list2.Add(myListItemArray2[i]);
16            }
17
18            if(this.ListBox1.Items.Count>0  )
19            {
20                if(!list2.Contains(this.ListBox1.SelectedItem))
21                {                            
22                    this.ListBox2.Items.Add(this.ListBox1.SelectedItem);
23                    this.ListBox1.Items.Remove(this.ListBox1.SelectedItem);
24                    this.ListBox1.ClearSelection();
25                    this.ListBox2.ClearSelection();
26                    this.ListBox2.SelectedIndex=0;
27                    this.ListBox1.SelectedIndex=0;
28                }
29            }    
30            else
31            {
32                    return ;
33            }

2 .全移动

ListItem[] myListItemArray1  = new ListItem[ListBox1.Items.Count];
            ListItem[] myListItemArray2  = new ListItem[ListBox2.Items.Count];

            ListBox1.Items.CopyTo(myListItemArray1, 0);
            
            ListBox2.Items.CopyTo(myListItemArray2,0);     
        ArrayList list1 = new ArrayList();
        ArrayList list2 = new ArrayList();            
            for(int i=0;i<myListItemArray1.Length;i++)
            {
                list1.Add(myListItemArray1[i]);
            }
            
            for(int i=0;i<myListItemArray2.Length;i++)
            {
                list2.Add(myListItemArray2[i]);
            }


            if(list2.Count>0)
            {
                 
                for (int i=0; i<list1.Count;i++)
                {
                    if(list2.Contains(list1[i]))
                        continue;
                    else
                        list2.Add(list1[i]);
                }
                ListBox1.Items.Clear();
                this.ListBox2.Items.Clear();
                this.ListBox2.DataSource = list2 ;
                this.ListBox2.DataBind();    
                    
            }
            else
            {
                for(int u =0;u<myListItemArray1.Length;u++)
                {
                    this.ListBox2.Items.Add(myListItemArray1[u]);
                }
                ListBox1.Items.Clear();
            
            }
            
            this.ListBox2.SelectedIndex=0;