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ASP.NET中 DropDownList+FormView(表单视图)的使用前台绑定

ylbtech-ASP.NET-Control-Bind:DropDownList+FormView(表单视图)的使用前台绑定

ASP.NET中 DropDownList+FormView(表单视图)的使用前台绑定。

1.A,运行效果图返回顶部

View Code

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="DropFvw.aspx.cs" Inherits="DropFvw" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>无标题页</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        请选择大分类：<asp:DropDownList ID="dropYuanBo" runat="server" AutoPostBack="True" DataSourceID="SqlDataSource1"
            DataTextField="CategoryName" DataValueField="CategoryID">
        </asp:DropDownList>
        <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>"
            SelectCommand="SELECT [CategoryID], [CategoryName] FROM [Categories]"></asp:SqlDataSource>
        <hr />
        该类的产品：<br />
        <asp:FormView ID="fvwYuanBo" runat="server" AllowPaging="True" DataKeyNames="ProductID"
            DataSourceID="SqlDataSource2">
            <EditItemTemplate>
                ProductID:
                <asp:Label ID="ProductIDLabel1" runat="server" Text='<%# Eval("ProductID") %>' />
                <br />
                ProductName:
                <asp:TextBox ID="ProductNameTextBox" runat="server" Text='<%# Bind("ProductName") %>' />
                <br />
                CategoryID:
                <asp:TextBox ID="CategoryIDTextBox" runat="server" Text='<%# Bind("CategoryID") %>' />
                <br />
                UnitPrice:
                <asp:TextBox ID="UnitPriceTextBox" runat="server" Text='<%# Bind("UnitPrice") %>' />
                <br />
                <asp:LinkButton ID="UpdateButton" runat="server" CausesValidation="True" CommandName="Update"
                    Text="更新" />
                &nbsp;<asp:LinkButton ID="UpdateCancelButton" runat="server" CausesValidation="False"
                    CommandName="Cancel" Text="取消" />
            </EditItemTemplate>
            <InsertItemTemplate>
                ProductName:
                <asp:TextBox ID="ProductNameTextBox" runat="server" Text='<%# Bind("ProductName") %>' />
                <br />
                CategoryID:
                <asp:TextBox ID="CategoryIDTextBox" runat="server" Text='<%# Bind("CategoryID") %>' />
                <br />
                UnitPrice:
                <asp:TextBox ID="UnitPriceTextBox" runat="server" Text='<%# Bind("UnitPrice") %>' />
                <br />
                <asp:LinkButton ID="InsertButton" runat="server" CausesValidation="True" CommandName="Insert"
                    Text="插入" />
                &nbsp;<asp:LinkButton ID="InsertCancelButton" runat="server" CausesValidation="False"
                    CommandName="Cancel" Text="取消" />
            </InsertItemTemplate>
            <ItemTemplate>
                ProductID:
                <asp:Label ID="ProductIDLabel" runat="server" Text='<%# Eval("ProductID") %>' />
                <br />
                ProductName:
                <asp:Label ID="ProductNameLabel" runat="server" Text='<%# Bind("ProductName") %>' />
                <br />
                CategoryID:
                <asp:Label ID="CategoryIDLabel" runat="server" Text='<%# Bind("CategoryID") %>' />
                <br />
                UnitPrice:
                <asp:Label ID="UnitPriceLabel" runat="server" Text='<%# Bind("UnitPrice") %>' />
                <br />
            </ItemTemplate>
        </asp:FormView>
        <asp:SqlDataSource ID="SqlDataSource2" runat="server" ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>"
            SelectCommand="SELECT [ProductID], [ProductName], [CategoryID], [UnitPrice] FROM [Products] WHERE ([CategoryID] = @CategoryID)">
            <SelectParameters>
                <asp:ControlParameter ControlID="dropYuanBo" DefaultValue="1" Name="CategoryID" PropertyName="SelectedValue"
                    Type="Int32" />
            </SelectParameters>
        </asp:SqlDataSource>
    </div>
    </form>
</body>
</html>

/web.config

<connectionStrings>
        <add name="NorthwindConnectionString" connectionString="Data
                    Source=.;Initial Catalog=Northwind;Integrated Security=True"
                        providerName="System.Data.SqlClient"/>
    </connectionStrings>

1.C,资源下载返回顶部

https://files.cnblogs.com/ylbtech/WebForm-Drop-XList.rar

作者：ylbtech
出处：http://ylbtech.cnblogs.com/
本文版权归作者和博客园共有，欢迎转载，但未经作者同意必须保留此段声明，且在文章页面明显位置给出原文连接，否则保留追究法律责任的权利。

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原文地址：https://www.cnblogs.com/ylbtech/p/2943917.html