可以建立一個具有ADO.NET連線性的Web表單。具有表單控制元件的簡單Web表單可以提交給伺服器。 ADO.NET可將提交的值儲存到SQL Server資料庫中。
在這裡,我們建立一個連線到SQL Server資料庫的Web表單應用程式。
首先開啟Visual Studio建立一個名稱為:AdoNetWebFormApp,如下所示 -
在這個專案中,在這個專案中新增一個新建項,在專案名稱上點選右鍵,在彈出的選單中選擇:新增->新增新項,檔案的名稱為:Register.aspx,如下圖所示 -
此Web表單包含以下原始碼。檔案:Register.aspx -
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Register.aspx.cs" Inherits="Register" %>
<!DOCTYPE html>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>WebForm</title>
<style type="text/css">
.auto-style1 {
width: 100%;
}
.auto-style2 {
width: 100px;
}
.auto-style3 {
width: 95px;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div>
<table class="auto-style1">
<tr>
<td class="auto-style2">
<asp:Label runat="server" Text="使用者名" ID="usernamelabelId"></asp:Label></td>
<td>
<asp:TextBox ID="UsernameId" runat="server"></asp:TextBox></td>
</tr>
<tr>
<td class="auto-style2">
<asp:Label runat="server" Text="Email"></asp:Label></td>
<td>
<asp:TextBox ID="EmailId" runat="server"></asp:TextBox></td>
</tr>
<tr>
<td class="auto-style2">
<asp:Label runat="server" Text="聯絡電話"></asp:Label></td>
<td>
<asp:TextBox ID="ContactId" runat="server"></asp:TextBox></td>
</tr>
<tr>
<td class="auto-style2"></td>
<td>
<asp:Button ID="ButtonId" runat="server" Text="提交" OnClick="ButtonId_Click" /></td>
</tr>
</table>
</div>
<div>
<asp:Label ID="Label1" runat="server"></asp:Label>
</div>
</form>
<table class="auto-style1">
<tr>
<td class="auto-style3">
<asp:Label ID="Label2" runat="server"></asp:Label></td>
<td>
<asp:Label ID="Label5" runat="server"></asp:Label></td>
</tr>
<tr>
<td class="auto-style3">
<asp:Label ID="Label3" runat="server"></asp:Label></td>
<td>
<asp:Label ID="Label6" runat="server"></asp:Label></td>
</tr>
<tr>
<td class="auto-style3">
<asp:Label ID="Label4" runat="server"></asp:Label></td>
<td>
<asp:Label ID="Label7" runat="server"></asp:Label></td>
</tr>
</table>
</body>
</html>
檔案:Register.aspx.cs -
using System;
using System.Data.SqlClient;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class Register : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void ButtonId_Click(object sender, EventArgs e)
{
SqlConnection con = null;
try
{
// Creating Connection
con = new SqlConnection("data source=.; database=student; integrated security=SSPI");
// Writing insert query
string query = "insert into student_info(id,name,email,contact)values(110,'" + UsernameId.Text + "','" + EmailId.Text + "','" + ContactId.Text + "')";
SqlCommand sc = new SqlCommand(query, con);
// Opening connection
con.Open();
// Executing query
int status = sc.ExecuteNonQuery();
Label1.Text = "提交的使用者資訊已經儲存到了表中,如下所示 - ";
// ----------------------- Retrieving Data ------------------ //
SqlCommand cm = new SqlCommand("select top 1 * from student_info ORDER BY id DESC", con);
// Executing the SQL query
SqlDataReader sdr = cm.ExecuteReader();
sdr.Read();
Label2.Text = "使用者名"; Label5.Text = sdr["name"].ToString();
Label3.Text = "Email"; Label6.Text = sdr["email"].ToString();
Label4.Text = "聯絡電話"; Label7.Text = sdr["contact"].ToString();
}catch (Exception ex)
{
Console.WriteLine("OOPs, something went wrong." + ex);
}
// Closing the connection
finally
{
con.Close();
}
}
}
執行專案,得到以下結果 -
填寫表單資訊,如下所示 -
提交後,它將儲存並檢索SQL Server資料庫中最後一條插入的資料。如下圖所示 -
查詢資料庫student的student_info結果如下 -