2021-08-20 WPF控件专题 ListView控件详解

Posted 2021-09-08 微软MVP Eleven

1.ListView控件介绍

Listbox ComboBox TabControl ItemsControl 条目控件

Winform ListView 5View

WPF ListView :用于显示数据项的列表（DataGrid ） ListBox
组织数据的结构和样式----显示数据
View : GridView:ListView 控件的以 列 形式显示数据项的 “视图模式”
GridView属性：Columns ColumnHeaderTemplate AllowsColumnReorder(true)
ColumnHeaderToolTip
ItemsSource:数据源 IEnumerable List

列：GridViewColumn 显示数据的列
属性：Header 列标题 Width 宽度 HeaderTemplate 显示列标题内容的模板
CellTemplate 显示列单元格的内容的模板
DisplayMemberBinding 要绑定到此列的数据项

将数据显示到ListView — 数据绑定（ItemsSource 后台代码指定 Xaml代码中设置）

定义GridView 列集合

UserInfos 显示到ListView

2.具体案例

<Window x:Class="WpfAppTest.ListViewWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:WpfAppTest"
        mc:Ignorable="d"
        Title="ListViewWindow" Height="450" Width="800" Loaded="Window_Loaded">
        <Grid>
                <ListView Name="lvList" HorizontalAlignment="Left" Height="228" Margin="88,133,0,0" VerticalAlignment="Top" ItemsSource="{Binding}" >
                        <ListView.View>
                                <GridView>
                                        <GridViewColumn>
                                                <GridViewColumn.Header>
                                                        <CheckBox Name="chkAll"  Content="全选" />
                                                </GridViewColumn.Header>
                                                <GridViewColumn.CellTemplate>
                                                        <DataTemplate>
                                                                <CheckBox Name="chk"  Tag="{Binding UserId}" IsChecked="{Binding ElementName=chkAll,Path=IsChecked,Mode=OneWay}"/>
                                                        </DataTemplate>
                                                </GridViewColumn.CellTemplate>
                                        </GridViewColumn>
                                        <GridViewColumn Header="编号" DisplayMemberBinding="{Binding UserId}" Width="50">
                                                <GridViewColumn.HeaderTemplate>
                                                        <DataTemplate>
                                                                <Label Content="{Binding}" Foreground="Red" BorderThickness="1" BorderBrush="YellowGreen" />
                                                        </DataTemplate>
                                                </GridViewColumn.HeaderTemplate>
                                        </GridViewColumn>
                                        <GridViewColumn Header="账号"  Width="80">
                                                <GridViewColumn.CellTemplate>
                                                        <DataTemplate>
                                                                <TextBlock Text="{Binding UserName}" Foreground="YellowGreen"  HorizontalAlignment="Left"   Width="60" />
                                                        </DataTemplate>
                                                </GridViewColumn.CellTemplate>
                                        </GridViewColumn>
                                        <GridViewColumn Header="状态" DisplayMemberBinding="{Binding UserState}" Width="50"/>
                                        <GridViewColumn Header="部门编号" DisplayMemberBinding="{Binding DeptId}" Width="60"/>
                                        <GridViewColumn Header="年龄" DisplayMemberBinding="{Binding UserAge}" Width="50"/>
                                </GridView>
                        </ListView.View>
                </ListView>

        </Grid>
</Window>

/// <summary>
/// ListViewWindow.xaml 的交互逻辑
/// </summary>
public partial class ListViewWindow : Window
{
        public ListViewWindow()
        {
                InitializeComponent();
        }

        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
                //代码设置ItemsSource
                // lvList.ItemsSource = GetUserList();
                lvList.DataContext = GetUserList();
        }

        /// <summary>
        /// 获取用户信息列表
        /// </summary>
        /// <returns></returns>
        private List<UserInfo> GetUserList()
        {
                List<UserInfo> list = new List<UserInfo>();
                string sql = "select UserId,UserName,UserState,UserAge,DeptId from UserInfos where DeptId>0";
                SqlDataReader dr = SqlHelper.ExecuteReader(sql, 1);
                while(dr.Read())
                {
                        UserInfo user = new UserInfo();
                        user.UserId = (int)dr["UserId"];
                        user.UserName = dr["UserName"].ToString();
                        user.UserState = (int)dr["UserState"];
                        user.UserAge = (int)dr["UserAge"];
                        user.DeptId = (int)dr["DeptId"];
                        list.Add(user);
                }
                dr.Close();
                return list;
        }
}

public class UserInfo
{
        public int UserId { get; set; }
        public string UserName { get; set; }
        public int UserState { get; set; }
        public int UserAge { get; set; }
        public int DeptId { get; set; }
}