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  • [置顶] WPF数据修改demo

    今天晚上研究了下wpf,现在把代码贴出来供大家学习参考

    sql语句:

    create table userinfos
    (

     ContactID  int primary key identity(1,1),
    FirstName varchar(100),
    LastName varchar(100),
    EmailAddress varchar(100)
    )
    go
    insert into  userinfos values('wanglei','aa','72121222@qq.com');
    insert into  userinfos values('qss','bb','23432354@qq.com');
    insert into  userinfos values('gdgg','cc','rgter@qq.com');
    insert into  userinfos values('cvvd','dd','5446567576@qq.com');
    select ContactID,FirstName,LastName,EmailAddress from userinfos where ContactID<=100

    MainWindow.xaml前台代码

    <Window x:Class="WpfApplication1.MainWindow"
            xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
            xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Closed="Window_Closed"
            Title="MainWindow" Height="350" Width="525">
        <Grid>

            <Grid.RowDefinitions>

                <RowDefinition Height="*" />

                <RowDefinition Height="Auto" />

                <RowDefinition Height="22" />

            </Grid.RowDefinitions>

            <ListView Name="listView1" MinWidth="280" >

                <ListView.View>

                    <GridView x:Name="gridView1">

                        <GridViewColumn Header="ContactID" DisplayMemberBinding="{Binding Path=ContactID}"></GridViewColumn>

                        <GridViewColumn Header="FirstName" DisplayMemberBinding="{Binding Path=FirstName}"></GridViewColumn>

                        <GridViewColumn Header="LastName" DisplayMemberBinding="{Binding Path=LastName}"></GridViewColumn>

                        <GridViewColumn Header="EmailAddress" DisplayMemberBinding="{Binding Path=EmailAddress}"></GridViewColumn>

    </GridView>

                </ListView.View>

            </ListView>

            <WrapPanel Grid.Row="1" Orientation="Horizontal"  DataContext="{Binding ElementName=listView1,Path=SelectedItem}">

                <StackPanel Orientation="Horizontal" Margin="5,2,5,2">

                  <TextBlock Name="textBlock_ContactID" Text="ContactID:" />

      <TextBox Name="textBox_ContactID" MinWidth="100" Text="{Binding ContactID}" />

        </StackPanel>

                <StackPanel Orientation="Horizontal" Margin="5,2,5,2">
                    <TextBlock Name="textBlock_FirstName" Text="FirstName:" />

     <TextBox Name="textBox_FirstName" MinWidth="100" Text="{Binding FirstName,UpdateSourceTrigger=PropertyChanged }" />

                </StackPanel>

                <StackPanel Orientation="Horizontal" Margin="5,2,5,2">

                    <TextBlock Name="textBlock_LastName" Text="LastName:" />

                    <TextBox Name="textBox_LastName" MinWidth="100" Text="{Binding LastName}" />

                </StackPanel>

                <StackPanel Orientation="Horizontal" Margin="5,2,5,2">

                    <TextBlock Name="textBlock_EmailAddress" Text="EmailAddress:" />

                        <TextBox Name="textBox_EmailAddress" MinWidth="100" Text="{Binding EmailAddress}" />


                </StackPanel>

            </WrapPanel>

            <Button Grid.Row="2" HorizontalAlignment="Right" Click="button1_Click" Name="button1">Refresh</Button>

        </Grid>


    </Window>

    后台代码

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Windows;
    using System.Windows.Controls;
    using System.Windows.Data;
    using System.Windows.Documents;
    using System.Windows.Input;
    using System.Windows.Media;
    using System.Windows.Media.Imaging;
    using System.Windows.Navigation;
    using System.Windows.Shapes;
    using System.Data.SqlClient;
    using System.Data;
    namespace WpfApplication1
    {
        /// <summary>
        /// MainWindow.xaml 的交互逻辑
        /// </summary>
        public partial class MainWindow : Window
        {
            public MainWindow()
            {
                InitializeComponent();
                getData();


            }
            SqlDataAdapter sda;
            DataTable dt;
          //关闭窗体
            private void Window_Closed(object sender, EventArgs e)
            {

                sda.Update(dt);
            }

           

            void getData()
            {
              

              
        

                SqlConnectionStringBuilder connbuilder = new SqlConnectionStringBuilder();

                connbuilder.DataSource = ".";

                connbuilder.IntegratedSecurity = true;

                connbuilder.InitialCatalog = "wl";

               

         SqlConnection conn = new SqlConnection(connbuilder.ConnectionString);

                sda = new SqlDataAdapter("select * from userinfos;", conn);

                SqlCommandBuilder commbuilder = new SqlCommandBuilder(sda);

                sda.UpdateCommand = commbuilder.GetUpdateCommand();

                dt = new DataTable();

                sda.AcceptChangesDuringUpdate = true;

                sda.Fill(dt);

                listView1.ItemsSource = dt.DefaultView;


            }

           //更新
            private void button1_Click(object sender, RoutedEventArgs e)
            {
         

                sda.Update(dt);

                getData();

            }
        }
    }


     

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  • 原文地址:https://www.cnblogs.com/jiangu66/p/3223716.html
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