步步为营 .NET三层架构解析 七、UI的设计(登陆页面、注册页页和添加部门页面)

在我们设计好了三层架构的SQLHelper、Model、DAL和BLL后，我们要开始来调用它设计好的功能了。

首先我们来设计Login.aspx,先看界面的设计：

<table>

    <tr>

        <td style="width: 100px; text-align: right">

            帐户名:</td>

        <td style="width: 100px">

            <asp:TextBox ID="txtUserName" runat="server"></asp:TextBox></td>

    </tr>

    <tr>

        <td style="width: 100px; text-align: right">

            密码:</td>

        <td style="width: 100px">

            <asp:TextBox ID="txtPassWord" runat="server" TextMode="Password"></asp:TextBox></td>

    </tr>

    <tr>

        <td style="width: 100px">

        </td>

        <td style="width: 100px">

            <asp:Button ID="btnLogin" runat="server" OnClick="btnLogin_Click1" Text="登陆" /></td>

    </tr>

</table>

再来看Login.aspx.cs的设计：

记得加上这个：

using BLL;

using Model;

而后才是：

protected void Page_Load(object sender, EventArgs e)

{

}

protected void btnLogin_Click1(object sender, EventArgs e)

{

    custom Custom = new custom();

    customSystem CustomSystem = new customSystem();

    Custom = CustomSystem.GetSinglename(txtUserName.Text.Trim().ToString());

    if (Custom.ename == txtUserName.Text.Trim().ToString())

    {

         // 密码是经过MD5加密后保存到数据库的

        if (Custom.password == FormsAuthentication.HashPasswordForStoringInConfigFile(txtPassWord.Text.Trim().ToString(), "MD5"))

        {

            department Department = new department();

            departmentSystem DepartmentSystem = new departmentSystem();

            Department = DepartmentSystem.Getsingledepartment(Custom.departID);

            SetSession(Department,Custom.departID.ToString());

        }

        else

        {

            Response.Write("<script>alert('密码错误');location.href='Login.aspx';</script>");

        }

    }

    else

    {

        Response.Write("<script>alert('帐户名不存在');location.href='Login.aspx';</script>");

    }

}

private void SetSession(department Department,string DepartID)

{

    if (Department == null || string.IsNullOrEmpty(DepartID))

    {

        Response.Write("<script>alert('网站运行错误或你没设置部门信息,请联系管理员.');location.href='Login.aspx';</script>");

        return;

    }

    Session["Ename"] = txtUserName.Text.Trim().ToString();

    Session["Departid"] = DepartID;

    Session["Operater"] = "";

    if (Department.departname == "控制中心")

    {

        Response.Write("<script>alert('登录成功');location.href='Default.aspx';</script>");

    }

    else

    {

        Response.Write("<script>alert('登录成功');location.href='Default2.aspx';</script>");

    }

}

接下来我们要在App_Code文件下新建PageBase.cs

public bool IsAdmin()

{

    if (Session["Departid"] != null)

    {

        department Department = new department();

        departmentSystem DepartmentSystem = new departmentSystem();

        Department = DepartmentSystem.Getsingledepartment(int.Parse(Session["Departid"].ToString()));

        if (Department.departname != "控制中心")

        {

            Response.Redirect("/Web/Login.aspx");

            Response.End();

            return false;

        }

    }

    else

    {

        Response.Redirect("/Web/Login.aspx");

        Response.End();

        return false;

    }

    return true;

}

加入下面之个方法：

再来看下ADDdepart.aspx的设计：

<table>

           <tr>

               <td style="width: 100px">

                   部门名称：</td>

               <td style="width: 100px">

                   <asp:TextBox ID="txtDepartmentName" runat="server"></asp:TextBox></td>

           </tr>

           <tr>

               <td style="width: 100px">

                   描述：</td>

               <td style="width: 100px">

                   <asp:TextBox ID="txtDescription" runat="server"></asp:TextBox></td>

           </tr>

           <tr>

               <td style="width: 100px">

               </td>

               <td style="width: 100px">

                   <asp:Button ID="btnAdd" runat="server" OnClick="btnAdd_Click" Text="增加" /></td>

           </tr>

       </table>

ADDdepart.aspx.cs的设计：

//继承PageBase类

public partial class ADDdepart : PageBase

{

    protected void Page_Load(object sender, EventArgs e)

    {

        if (!Page.IsPostBack)

        {

            IsAdmin();

        }

    }

    protected void btnAdd_Click(object sender, EventArgs e)

    {

        department Department = new department();

        department Departmenter = new department();

        departmentSystem DepartmentSystem = new departmentSystem();

        Department.departname = txtDepartmentName.Text.Trim();

        Department.description = txtDescription.Text.Trim();

        Departmenter = DepartmentSystem.Getdepartmenter(txtDepartmentName.Text.Trim());

        if (Departmenter.id <= 0)

        {

            if (DepartmentSystem.Adddepartment(Department) >= 1)

            {

                ClientScript.RegisterClientScriptBlock(this.GetType(), "", "<script>alert('恭喜您，部门添加成功！');</script>");

            }

        }

        else

        {

            ClientScript.RegisterClientScriptBlock(this.GetType(), "", "<script>alert('您填的部门己存在,请更改!');</script>");

        }

  }

}

再来看下注册页面Register.aspx的设计：

<table>

           <tr>

               <td style="width: 100px; text-align: right">

                   帐户名：</td>

               <td style="width: 100px">

                   <asp:TextBox ID="txtUserName" runat="server"></asp:TextBox></td>

               <td style="width: 100px">

               </td>

           </tr>

           <tr>

               <td style="width: 100px; text-align: right;">

                   姓名：</td>

               <td style="width: 100px">

                   <asp:TextBox ID="txtName" runat="server"></asp:TextBox></td>

               <td style="width: 100px">

               </td>

           </tr>

           <tr>

               <td style="width: 100px; text-align: right;">

                   年龄：</td>

               <td style="width: 100px">

                   <asp:TextBox ID="txtAge" runat="server"></asp:TextBox></td>

               <td style="width: 100px">

               </td>

           </tr>

           <tr>

               <td style="width: 100px; text-align: right;">

                   密码：</td>

               <td style="width: 100px">

                   <asp:TextBox ID="txtPassWord" runat="server" TextMode="Password"></asp:TextBox></td>

               <td style="width: 100px">

                   <asp:CompareValidator ID="CompareValidator1" runat="server" ControlToCompare="TextBox4"

                       ControlToValidate="TextBox5" ErrorMessage="密码不一样"></asp:CompareValidator></td>

           </tr>

           <tr>

               <td style="width: 100px; text-align: right;">

                   重复密码：</td>

               <td style="width: 100px">

                   <asp:TextBox ID="txtConfirmPassWord" runat="server" TextMode="Password"></asp:TextBox></td>

               <td style="width: 100px">

               </td>

           </tr>

           <tr>

               <td style="width: 100px; text-align: right;">

                   部门：</td>

               <td style="width: 100px">

                   <asp:DropDownList ID="ddlDepartment" runat="server">

                   </asp:DropDownList></td>

               <td style="width: 100px">

               </td>

           </tr>

           <tr>

               <td style="width: 100px">

               </td>

               <td style="width: 100px">

                   <asp:Button ID="btnLogin" runat="server" OnClick="btnLogin_Click" Text="注册" /></td>

               <td style="width: 100px">

               </td>

           </tr>

       </table>

下面是Register.aspx.cs的设计:

protected void Page_Load(object sender, EventArgs e)

 {

     if (!IsPostBack)

     {

         BinData();

     }

 }

 public void BinData()

 {

     List<department> Departmentlist = new List<department>();

     departmentSystem DepartmentSystem = new departmentSystem();

     Departmentlist = DepartmentSystem.GetDepartment();

     ddlDepartment.DataSource = Departmentlist;

     ddlDepartment.DataTextField = "departname";

     ddlDepartment.DataValueField = "id";

     ddlDepartment.DataBind();

 }

 protected void btnLogin_Click(object sender, EventArgs e)

 {

     custom Custom = new custom();

     customSystem CustomSystem = new customSystem();

     custom Customn = new custom();

     Customn = CustomSystem.GetSinglename(txtUserName.Text.Trim());

     if (Customn.id <= 0)

     {

         Custom.ename = txtUserName.Text.Trim();

         Custom.cname = txtName.Text.Trim();

         Custom.age = Convert.ToInt32(txtAge.Text.Trim());

         Custom.password = FormsAuthentication.HashPasswordForStoringInConfigFile(txtPassWord.Text.Trim(), "MD5");

         Custom.departID = int.Parse(ddlDepartment.SelectedValue);

         if (CustomSystem.customADD(Custom) >= 1)

         {

             ClientScript.RegisterClientScriptBlock(this.GetType(), "", "<script>alert('恭喜您，帐号添加成功！');</script>");

         }

     }

     else

     {

         ClientScript.RegisterClientScriptBlock(this.GetType(), "", "<script>alert('你输入的帐户名己存在,请更改！');</script>");

     }

 }

以上只是UI简单的调用BLL的功能,下次再讲解下GridView调用BLL和GridView的分页,可能我设计的只是较简单,欢迎大家提出你们宝贵的意见.来共同提高.欢迎拍砖.