怎樣利用vs 2012編寫壹個數據庫開發應用程序的登錄界面？（如學生信息系統）小白跪謝！

using System;

using System.Data;

using System.Configuration;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

}

protected void Button1_Click(object sender, EventArgs e)

{

string str3 = Session["check"].ToString();

string str1, str2;

str1 = ConfigurationManager.AppSettings["bo_storeConnectionString"];

str2 = "select * from[user] where Userid='" + TextBox1.Text.Trim() + "'and Psd='" + TextBox2.Text.Trim() + "'";

SqlDataAdapter ad = new SqlDataAdapter(str2, str1);

DataSet ds = new DataSet();

ad.Fill(ds, "user");

if (ds.Tables["user"].Rows.Count == 0)

{

Session["pass"] = "no";

Label3.Text = "用戶名密碼不正確！";

Label3.Visible = true;

}

else

{

Session["pass"] = "ok";

if (ds.Tables["user"].Rows[0]["Userdj"].ToString() == "1")

{

Session["Manage"] = TextBox1.Text.ToString();

Session["Pwd"] = TextBox2.Text.ToString();

Response.Redirect("super2.aspx");

}

else

Response.Redirect("userinfo.aspx?id=" + ds.Tables["user"].Rows[0]["id"].ToString());

}

}

}

}

頁面就建立兩個label和壹個button就行了

要連接數據庫的