<%@ Page Language="C#" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><script runat="server"> //增加建立項 protected void Button1_Click(object sender, EventArgs e) { ListItem newItem = new ListItem(); newItem.Text = this.TextBox3.Text; newItem.Value = this.TextBox4.Text; this.ListBox1.Items.Add(newItem); } //得到設定最大數量 //原Capacity的容量為8，預設的情況下會隨著新增項(ListItem)的數量增多會成２倍的增長8 16 32.. //但如果設定了Capacity的大小，就不會自動成長了 protected void Button2_Click(object sender, EventArgs e) { Response.Write("原大小:"+this.ListBox1.Items.Capacity.ToString()); this.ListBox1.Items.Capacity = 6; Response.Write("更改後:"+this.ListBox1.Items.Capacity.ToString()); } //清空items集合中所有的項 protected void Button3_Click(object sender, EventArgs e) { this.ListBox1.Items.Clear(); } //判斷集合中是否包含指定項 protected void Button4_Click(object sender, EventArgs e) { ListItem item = new ListItem(this.TextBox1.Text, this.TextBox2.Text); if (this.ListBox1.Items.Contains(item)) { Response.Write("yes"); ; } else { Response.Write("no"); } } //將items中的所有項複製到listItemCollection集合中 protected void Button5_Click(object sender, EventArgs e) { ListItem[] items=new ListItem[this.ListBox1.Items.Count]; this.ListBox1.Items.CopyTo(items, 0); ListBox listBox2 = new ListBox(); listBox2.ID = "ListBox2"; listBox2.Items.AddRange(items); //得到ListBox1的位置，並將listBox2放到ListBox1後面 int position = 0; foreach (Control c in this.form1.Controls) { position++; if (c.ID == "ListBox1") { break; } } this.form1.Controls.AddAt(position,listBox2); } //得到集合中項的數量 protected void Button6_Click(object sender, EventArgs e) { Response.Write(this.ListBox1.Items.Count.ToString()); } //根據文本尋找,如果找到則返回此項，如果找不到則返加null protected void Button7_Click(object sender, EventArgs e) { ListItem item= this.ListBox1.Items.FindByText(this.TextBox1.Text); if (item != null) { Response.Write(item.Text+":"+item.Value); } } //根據值尋找,如果找到則返回此項，如果找不到則返加null protected void Button8_Click(object sender, EventArgs e) { ListItem item = this.ListBox1.Items.FindByText(this.TextBox2.Text); if (item != null) { Response.Write(item.Text + ":" + item.Value); } } //所尋找項的索引 protected void Button9_Click(object sender, EventArgs e) { ListItem item = this.ListBox1.Items.FindByText(this.TextBox1.Text); if (item != null) { int position = this.ListBox1.Items.IndexOf(item); Response.Write("所尋找項的索引:"+position.ToString()); } } //插入建立項 protected void Button10_Click(object sender, EventArgs e) { ListItem newItem=new ListItem(this.TextBox1.Text,this.TextBox2.Text); this.ListBox1.Items.Insert(0, newItem); } //刪除節點 protected void Button11_Click(object sender, EventArgs e) { ListItem item = new ListItem(this.TextBox1.Text, this.TextBox2.Text); this.ListBox1.Items.Remove(item); } //根據索引位置刪除 protected void Button12_Click(object sender, EventArgs e) { int index = this.ListBox1.Items.IndexOf(new ListItem(this.TextBox1.Text, this.TextBox2.Text)); this.ListBox1.Items.RemoveAt(index); } //選中項 protected void Button13_Click(object sender, EventArgs e) { this.TextBox1.Text = this.ListBox1.SelectedItem.Text; this.TextBox2.Text = this.ListBox1.SelectedItem.Value; } //修改 protected void Button14_Click(object sender, EventArgs e) { this.ListBox1.SelectedItem.Text = this.TextBox3.Text; this.ListBox1.SelectedItem.Value = this.TextBox4.Text; }</script><html xmlns="http://www.w3.org/1999/xhtml" ><head runat="server"> <title>無標題頁</title></head><body> <form id="form1" runat="server"> <div> <asp:ListBox ID="ListBox1" runat="server"> <asp:ListItem Value="0">張三</asp:ListItem> <asp:ListItem Value="1">李四</asp:ListItem> <asp:ListItem Selected="True" Value="2">王五</asp:ListItem> <asp:ListItem Value="3">趙六</asp:ListItem> <asp:ListItem Value="4">王七</asp:ListItem> </asp:ListBox> <br /> <br /> oldText <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox><br /> oldValue <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox><br /> <br /> newText <asp:TextBox ID="TextBox3" runat="server"></asp:TextBox><br /> newValue<asp:TextBox ID="TextBox4" runat="server"></asp:TextBox><br /> <br /> <asp:Button ID="Button1" runat="server" Text="add" OnClick="Button1_Click" /><br /> <asp:Button ID="Button2" runat="server" Text="get(Set)Capacity" OnClick="Button2_Click" /><br /> <asp:Button ID="Button3" runat="server" Text="Clear" OnClick="Button3_Click" /><br /> <asp:Button ID="Button4" runat="server" Text="Contains" OnClick="Button4_Click" /><br /> <asp:Button ID="Button5" runat="server" Text="copyTo" OnClick="Button5_Click" /><br /> <asp:Button ID="Button6" runat="server" Text="count" OnClick="Button6_Click" /> <br /> <asp:Button ID="Button7" runat="server" OnClick="Button7_Click" Text="findByText" /><br /> <asp:Button ID="Button8" runat="server" Text="findByValue" OnClick="Button8_Click" /><br /> <asp:Button ID="Button9" runat="server" Text="indexOf" OnClick="Button9_Click" /> <br /> <asp:Button ID="Button10" runat="server" Text="insert" OnClick="Button10_Click" /> <br /> <asp:Button ID="Button11" runat="server" Text="remove" OnClick="Button11_Click" /> <br /> <asp:Button ID="Button12" runat="server" Text="removeAt" OnClick="Button12_Click" /> <br /> <asp:Button ID="Button13" runat="server" Text="select" OnClick="Button13_Click" /> <br /> <asp:Button ID="Button14" runat="server" Text="edit" OnClick="Button14_Click" /></div> </form></body></html>Start building with 50+ products and up to 12 months usage for Elastic Compute Service
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