UI层需要调用model层+bll层
<body> <form id="form1" runat="server"> <div> <table> <tr> <td> 编号： </td> <td> <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label> </td> </tr> <tr> <td>产品名称：</td> <td> <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox> <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="TextBox1" Display="Dynamic" ErrorMessage="不能为空！" ForeColor="#FF3300"></asp:RequiredFieldValidator> </td> </tr> <tr> <td>售价：</td> <td> <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox> <asp:CompareValidator ID="CompareValidator1" runat="server" ControlToValidate="TextBox2" Display="Dynamic" ErrorMessage="输入数字！" ForeColor="Red" Operator="DataTypeCheck" Type="Double"></asp:CompareValidator> <asp:RequiredFieldValidator ID="RequiredFieldValidator4" runat="server" ControlToValidate="TextBox2" Display="Dynamic" ErrorMessage="不能为空！" ForeColor="#FF3300"></asp:RequiredFieldValidator> </td> </tr> <tr> <td class="style1">市场价：</td> <td class="style1"> <asp:TextBox ID="TextBox3" runat="server"></asp:TextBox> <asp:RequiredFieldValidator ID="RequiredFieldValidator5" runat="server" ControlToValidate="TextBox2" Display="Dynamic" ErrorMessage="不能为空！" ForeColor="#FF3300"></asp:RequiredFieldValidator> <asp:CompareValidator ID="CompareValidator2" runat="server" ControlToValidate="TextBox3" Display="Dynamic" ErrorMessage="输入数字！" ForeColor="Red" Operator="DataTypeCheck" Type="Double"></asp:CompareValidator> </td> </tr> <tr> <td>产品类别：</td> <td> <asp:DropDownList ID="DropDownList1" runat="server"> </asp:DropDownList> </td> </tr> <tr> <td>简介：</td> <td> <asp:TextBox ID="TextBox4" runat="server" TextMode=MultiLine Height="83px"></asp:TextBox> <asp:RequiredFieldValidator ID="RequiredFieldValidator6" runat="server" ControlToValidate="TextBox4" Display="Dynamic" ErrorMessage="不能为空！" ForeColor="#FF3300"></asp:RequiredFieldValidator> </td> </tr> <tr> <td>是否上架：</td> <td> <asp:CheckBox ID="CheckBox1" runat="server" /> </td> </tr> <tr> <td colspan = 2 align ="center"> <asp:Button ID="button1" runat="server" Text="提交" onclick="button1_Click" /> </td> </tr> </table> </div> </form> </body然后写好UI，UI需要调用的一点css
<style type="text/css"> #TextArea1 { height: 97px; } #ta1 { height: 85px; } .style1 { height: 25px; } </style>其中验证控件需要设置判断选项
RequiredFieldValidator 的display为Dynamic
ControlToValidate值为需要判断的text文本框
字体颜色和属性都可以更改
UI界面写完以后打开后台
在Page_Load窗体加载时
//跳转的时候从前台获取pid然后进行判断是否为空值，然后使用querystring 来get传过来的值 var pd = Request.QueryString["pid"]; if (string.IsNullOrEmpty(pd)) { //进入if后若判断条件为空则跳转回原页面 Response.Redirect("Index.aspx"); } if (!IsPostBack) { int ID = Convert.ToInt32(pd); var product = ProductM.Select(ID); if (product != null) { DropDownList1.DataSource = ProductCategoryM.Select(); DropDownList1.DataValueField = "id"; DropDownList1.DataTextField = "Name"; DropDownList1.DataBind(); Label1.Text = product.PID+""; TextBox1.Text = product.ProductName; TextBox2.Text = product.MarketPrice+""; TextBox3.Text = product.SellingPrice+""; TextBox4.Text = product.Introduction + ""; DropDownList1.SelectedValue = product.CategoryId + ""; CheckBox1.Checked = product.IsOnSale == 1; } }然后给提交按钮添加事件：
var product = new Product() { PID = Convert.ToInt32(Label1.Text), ProductName = TextBox1.Text, MarketPrice = Convert.ToDecimal(TextBox2.Text), SellingPrice = Convert.ToDecimal(TextBox3.Text), Introduction = TextBox4.Text, CategoryId = Convert.ToInt32(DropDownList1.SelectedValue), IsOnSale = CheckBox1.Checked ? 1 : 0 }; if (ProductM.Update(product)>0) { Response.Write("<script>alert('修改成功');location.href= 'Index.aspx' </script>"); }
