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.