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我想在我的aspx應用程序中創建一個文本框(用於輸入名稱),該應用程序建議來自數據庫的員工的名稱。來自數據庫的Ajax自動擴展器
我在下面粘貼我的代碼。我使用的是MySQL
的Default.aspx:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Register assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" tagprefix="asp" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="TextBox1" runat="server" ontextchanged="TextBox1_TextChanged"></asp:TextBox>
<asp:AutoCompleteExtender ID="TextBox1_AutoCompleteExtender" runat="server"
ServiceMethod="GetCompletionList2" TargetControlID="TextBox1"
UseContextKey="True">
</asp:AutoCompleteExtender>
</div>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
</form>
</body>
</html>
Default.aspx.cs:
// here we use a readymade class for database operations to Mysql server
using System;
using System.Configuration;
using System.Data;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using Gbs.DAL; // for ..redymade class..
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
[System.Web.Services.WebMethodAttribute(), System.Web.Script.Services.ScriptMethodAttribute()]
public static string[] GetCompletionList2(string prefixText, int count, string contextKey)
{
myDb db = new myDb();// its class in Dal.cs
string sql = "Select * from empdata Where empname like @prefixText";
DataTable dt = db.getDataTable(sql); // method in redymade class
string[] items = new string[dt.Rows.Count];
int i = 0;
foreach (DataRow dr in dt.Rows)
{
items.SetValue(dr["empname"].ToString(), i);
i++;
}
return items;
}
protected void TextBox1_TextChanged(object sender, EventArgs e)
{
}
}
//就沒有任何錯誤,程序運行成功
如果沒有錯誤,並且程序運行成功(這對我來說意味着它做它應該做的事),那麼你的問題是什麼?什麼不起作用? – Oded 2010-07-03 10:10:50
請檢查以下鏈接 http://www.asp.net/ajax/ajaxcontroltoolkit/Samples/AutoComplete/AutoComplete.aspx 我們需要在方法前指定此項 [System.Web.Services.WebMethod] [System。 Web.Script.Services.ScriptMethod] – Ramakrishnan 2010-07-03 12:56:14