作者：herobeast
时间：2007-7-18
/Files/HeroBeast/autocompletetextboxcontrol.rar
我想大家在用163邮箱给朋友写信的时候，已经感受过“自动完成”功能了吧！
下面是我刚做一个类似于那样的控件.如下图：
1.js
2.源代码：
1 using System;
2 using System.Collections.Generic;
3 using System.ComponentModel;
4 using System.Text;
5 using System.Web;
6 using System.Web.UI;
7 using System.Web.UI.WebControls;
8 [assembly: WebResource("HBAutoCompleteTextBox.js", "application/x-javascript")]
9 namespace HBControl
10 {
11 [DefaultProperty("Text")]
12 [ToolboxData("<{0}:HBAutoCompleteTextBox runat=server></{0}:HBAutoCompleteTextBox>")]
13 public class HBAutoCompleteTextBox : TextBox
14 {
15
16 [Bindable(true),
17 Category("Appearance"),
18 Description("备选项")
19 ]
20 public string Items
21 {
22 get
23 {
24 string s = (string)ViewState["Items"];
25 return (s == null) ? string.Empty : s;
26 }
27 set
28 {
29 ViewState["Items"] = value;
30 }
31 }
32 protected override void OnPreRender(EventArgs e)
33 {
34 if (this.Page != null)
35 {
36 ClientScriptManager mgr = this.Page.ClientScript;
37 mgr.RegisterClientScriptResource(typeof(HBAutoCompleteTextBox), "HBAutoCompleteTextBox.js");
38 }
39 base.OnPreRender(e);
40 this.Attributes.Add("onkeyup", "AutoComplete('" + this.ClientID + "','"+this.Items+"');");
41 }
42 }
43 }
44
以上实现效果如下：2 using System.Collections.Generic;
3 using System.ComponentModel;
4 using System.Text;
5 using System.Web;
6 using System.Web.UI;
7 using System.Web.UI.WebControls;
8 [assembly: WebResource("HBAutoCompleteTextBox.js", "application/x-javascript")]
9 namespace HBControl
10 {
11 [DefaultProperty("Text")]
12 [ToolboxData("<{0}:HBAutoCompleteTextBox runat=server></{0}:HBAutoCompleteTextBox>")]
13 public class HBAutoCompleteTextBox : TextBox
14 {
15
16 [Bindable(true),
17 Category("Appearance"),
18 Description("备选项")
19 ]
20 public string Items
21 {
22 get
23 {
24 string s = (string)ViewState["Items"];
25 return (s == null) ? string.Empty : s;
26 }
27 set
28 {
29 ViewState["Items"] = value;
30 }
31 }
32 protected override void OnPreRender(EventArgs e)
33 {
34 if (this.Page != null)
35 {
36 ClientScriptManager mgr = this.Page.ClientScript;
37 mgr.RegisterClientScriptResource(typeof(HBAutoCompleteTextBox), "HBAutoCompleteTextBox.js");
38 }
39 base.OnPreRender(e);
40 this.Attributes.Add("onkeyup", "AutoComplete('" + this.ClientID + "','"+this.Items+"');");
41 }
42 }
43 }
44
问题：
在按回车选择的时候，总是提交页面，很郁闷，还请高手指教！现在先用左右箭头键进行选择的。