一、前言

ItemsControl、ListBox、ListView这三种控件在WPF中都可作为列表信息展示控件。我们可以通过修改这三个控件的样式来展示我们的列表信息。

既然都是展示列表信息的控件,那他们有什么相同点和不同点呢。

同:

  1、这三个控件都是列表型控件,可以进行列表绑定(ItemsSource);

  2、这三个控件均使用ItemsPresenter来展示列表信息;

异:

  1、ListBox继承于ItemsControl,比ItemsControl一个Selector对象;

  2、ListView继承于ListBox,比ListBox多一个View属性。

也就是说ItemsControl不支持列表项选择功能,ListBox支持单选、多选。ListView能以不同的视图形式展示列表信息。

下面我们通过例子来展现:

1.1、ItemsControl实现的图片选择预览控件

控件的效果如下:

下面贴上代码:

 <StackPanel Orientation="Horizontal" Margin=" 0 0" HorizontalAlignment="Center" VerticalAlignment="Center">
<Grid>
<Rectangle x:Name="rectangle" RadiusX="0" RadiusY="0" Width="50" Height="50" MouseLeftButtonUp="UpLoadCaptrue_Click" SnapsToDevicePixels="True" StrokeDashArray="3 3 3 3" StrokeThickness="1" Margin="5 0">
<Rectangle.Fill>
<ImageBrush ImageSource="/Images/UpLoad.png" Opacity="0.3" Stretch="Fill" Viewport="0.25 0.25 0.5 0.5"/>
</Rectangle.Fill>
<Rectangle.Style>
<Style TargetType="Rectangle">
<Setter Property="Stroke" Value="#999999"/>
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="true">
<Setter Property="Stroke" Value="#1dc0a5"/>
</Trigger>
</Style.Triggers>
</Style>
</Rectangle.Style>
</Rectangle>
</Grid>
<ScrollViewer ScrollViewer.HorizontalScrollBarVisibility="Auto" ScrollViewer.VerticalScrollBarVisibility="Hidden" Width="360">
<ItemsControl x:Name="itemsControl" Background="Transparent" ItemsSource="{Binding }">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate>
<Border>
<StackPanel>
<Grid Width="60" Height="60" SnapsToDevicePixels="True">
<Border BorderBrush="#999999" Width="50" Height="50" BorderThickness="1" Margin="5 0">
<Image Source="{Binding}" Width="40" Height="40" HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Border>
<Image Source="/Images/Close.png" Width="16" Height="16" MouseLeftButtonUp="ReMoveCaptrue_Click" HorizontalAlignment="Right" VerticalAlignment="Top" Margin="0 2 0 0">
<Image.Style>
<Style TargetType="Image">
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="true">
<Setter Property="Effect">
<Setter.Value>
<DropShadowEffect ShadowDepth="0" Color="Red" Opacity="1" BlurRadius="5"/>
</Setter.Value>
</Setter>
</Trigger>
</Style.Triggers>
</Style>
</Image.Style>
</Image>
</Grid>
</StackPanel>
</Border>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</ScrollViewer>
</StackPanel>

上面ItemsControl设置了ItemsPanel,由于我们的列表展示是横向的,所以设置StackPanel,并将Orientation设置为Horizontal。

里面有两个事件,添加图片UpLoadCaptrue_Click和移除图片ReMoveCaptrue_Click。代码如下:

public MainWindow()
{
InitializeComponent();
this.itemsControl.ItemsSource = Capture;
} public ObservableCollection<string> Capture = new ObservableCollection<string>(); /// <summary>
/// 上传截图
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void UpLoadCaptrue_Click(object sender, MouseButtonEventArgs e)
{
OpenFileDialog logoSelected = new OpenFileDialog();
logoSelected.Filter = "图片|*.jpg;*.png;*.bmp;*.gif";
if (logoSelected.ShowDialog() ==true)
{
Capture.Add(logoSelected.FileName);
}
} /// <summary>
/// 移除截图
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ReMoveCaptrue_Click(object sender, MouseButtonEventArgs e)
{
Capture.Remove(((Image)sender).DataContext.ToString());
}

控件中用到的素材:

 

1.2、基于ListBox实现用户列表展示

下面的实例一般用于通讯软件用户列表展示。主要是通过修改ListBoxItem的样式来实现。

先看下实现的效果:

大体思路:先定义ListBoxStyle,定义ListBox的Style是为了实现去掉列表项的间隙,默认的ListBox里面有Padding值。我们把Padding改为0;然后定义ListBoxItem项的Style样式,因为我们是通过绑定数据的方式呈现,因此对于需要动态显示的值我们把它放到一个类中。

 public List<UserInfo> UserList { get; set; }

 public class UserInfo
{
public Brush UserBackground { get; set; }
public string Header { get; set; }
public string Name { get; set; }
public string Info { get; set; }
public int Count { get; set; }
}

ListBoxItem样式代码如下:

 <Style x:Key="UserInfoStyle" TargetType="{x:Type ListBoxItem}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ListBoxItem}">
<Grid Height="50" x:Name="grid">
<Border Background="{Binding UserBackground}" Width="40" Height="40" CornerRadius="4" HorizontalAlignment="Left" Margin="5 0 0 0">
<TextBlock Text="{Binding Header}" FontSize="23" Foreground="White" VerticalAlignment="Center" HorizontalAlignment="Center"/>
</Border>
<TextBlock Text="{Binding Name}" Margin="55 7 0 0" FontSize="13"/>
<TextBlock Text="{Binding Info}" Foreground="#808080" Margin="55 30 0 0"/>
<TextBlock Text="{Binding Count,StringFormat={}{0}人}" Foreground="#808080" HorizontalAlignment="Right" VerticalAlignment="Center" Margin="0 0 5 0"/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="true">
<Setter TargetName="grid" Property="Background" Value="#fceeb9"/>
</Trigger>
<Trigger Property="Selector.IsSelected" Value="true">
<Setter TargetName="grid" Property="Background" Value="#fae388"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>

ListBox样式代码如下:

<ListBox BorderThickness="1" ItemContainerStyle="{StaticResource UserInfoStyle}" x:Name="UserInfoList" BorderBrush="#eaeaeb" Background="Transparent" Width="280" Height="300" Margin="50 5 0 0">
<ListBox.Style>
<Style TargetType="ListBox">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListBox">
<Border x:Name="Bd" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Padding="0">
<ScrollViewer Focusable="False">
<ItemsPresenter />
</ScrollViewer>
</Border> </ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ListBox.Style>
</ListBox>

后台C#代码初始化数据,及设定数据源:

UserList = new List<UserInfo>()
{
new UserInfo(){
UserBackground=new SolidColorBrush((Color)ColorConverter.ConvertFromString("#ff9f4c")),
Header="群",
Name="DESKTOP-0N",
Info="我要像风一样自由!",
Count=
},
new UserInfo(){
UserBackground=new SolidColorBrush((Color)ColorConverter.ConvertFromString("#ff9f4c")),
Header="张",
Name="张三丰",
Info="我要像风一样自由!",
Count=
},
new UserInfo(){
UserBackground=new SolidColorBrush((Color)ColorConverter.ConvertFromString("#9d9d9d")),
Header="鬼",
Name="鬼见愁",
Info="我要像风一样自由!",
Count=
},
};
this.UserInfoList.ItemsSource = UserList;

1.3、ListBoxView列表信息展示

ListBoxView信息展示有点像DataGrid控件,以下为ListBoxView基本样式代码:

  <Style x:Key="ListViewItemStyle" TargetType="{x:Type ListViewItem}">
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
<Setter Property="Foreground" Value="Black"/>
<Setter Property="BorderThickness" Value="0"/>
<Setter Property="Template" >
<Setter.Value>
<ControlTemplate TargetType="{x:Type ListBoxItem}">
<Border x:Name="Bd" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Padding="{TemplateBinding Padding}" SnapsToDevicePixels="True">
<GridViewRowPresenter VerticalAlignment="Center" Content="{TemplateBinding Content}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsSelected" Value="True">
<Setter Property="Background" TargetName="Bd" Value="#FF866C"></Setter>
<Setter Property="Foreground" Value="White"></Setter>
</Trigger>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" TargetName="Bd" Value="#FFEAE4"></Setter>
<Setter Property="Foreground" Value="Black"></Setter>
</Trigger>
<Trigger Property="Height" Value="Auto">
<Setter Property="MinHeight" Value="35" />
</Trigger>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Opacity" Value="0.5"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style> <Style x:Key="ListViewStyle1" TargetType="{x:Type ListView}">
<Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto"/>
<Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto"/>
<Setter Property="VirtualizingStackPanel.IsVirtualizing" Value="True"></Setter>
<Setter Property="VirtualizingStackPanel.VirtualizationMode" Value="Recycling" />
<Setter Property="ScrollViewer.IsDeferredScrollingEnabled" Value="False" />
<Setter Property="ScrollViewer.CanContentScroll" Value="true"/>
<Setter Property="ScrollViewer.PanningMode" Value="Both"/>
<Setter Property="Stylus.IsFlicksEnabled" Value="False"/>
<Setter Property="ItemContainerStyle" Value="{StaticResource ListViewItemStyle}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ListView}">
<ScrollViewer Padding="{TemplateBinding Padding}" Style="{DynamicResource {x:Static GridView.GridViewScrollViewerStyleKey}}">
<ItemsPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
</ScrollViewer>
<ControlTemplate.Triggers>
<Trigger Property="IsGrouping" Value="true">
<Setter Property="ScrollViewer.CanContentScroll" Value="false"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style> <Style x:Key="GridViewColumnHeaderStyle" TargetType="{x:Type GridViewColumnHeader}">
<Setter Property="Background" Value="#FFEAE4" />
<Setter Property="Template" >
<Setter.Value>
<ControlTemplate TargetType="{x:Type GridViewColumnHeader}">
<Grid SnapsToDevicePixels="True" >
<Border x:Name="HeaderBorder" BorderBrush="{TemplateBinding BorderBrush}" Background="{TemplateBinding Background}">
<Grid>
<Grid.RowDefinitions>
<RowDefinition MaxHeight="7"/>
<RowDefinition/>
</Grid.RowDefinitions>
<Border Padding="{TemplateBinding Padding}" Grid.RowSpan="2">
<ContentPresenter x:Name="HeaderContent" ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" ContentStringFormat="{TemplateBinding ContentStringFormat}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</Border>
</Grid>
</Border>
<Canvas>
<Thumb x:Name="PART_HeaderGripper">
<Thumb.Style>
<Style TargetType="{x:Type Thumb}">
<Setter Property="Canvas.Right" Value="-9"/>
<Setter Property="Width" Value="18"/>
<Setter Property="Height" Value="{Binding ActualHeight, RelativeSource={RelativeSource TemplatedParent}}"/>
<Setter Property="Padding" Value="0"/>
<Setter Property="Background" Value="White"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Thumb}">
<Border Background="Transparent" Padding="{TemplateBinding Padding}">
<Rectangle Fill="{TemplateBinding Background}" HorizontalAlignment="Center" Width="1"/>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Thumb.Style>
</Thumb>
</Canvas>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" TargetName="HeaderBorder" Value="#FF866B"/>
<Setter Property="Background" TargetName="PART_HeaderGripper" Value="Transparent"/>
</Trigger>
<Trigger Property="IsPressed" Value="True">
<Setter Property="Background" TargetName="HeaderBorder" Value="#FF866B"/>
<Setter Property="Visibility" TargetName="PART_HeaderGripper" Value="Hidden"/>
</Trigger>
<Trigger Property="Height" Value="Auto">
<Setter Property="MinHeight" Value="35"/>
</Trigger>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Opacity" Value="0.5"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>

引用示例:

 <ListView x:Name="ListView"  Style="{StaticResource ListViewStyle1}" Width="500">
<ListView.View>
<GridView ColumnHeaderContainerStyle="{StaticResource GridViewColumnHeaderStyle}">
<GridViewColumn Header="序号" DisplayMemberBinding="{Binding Num}" Width="100"/>
<GridViewColumn Header="名称" DisplayMemberBinding="{Binding Name}" Width="100"/>
<GridViewColumn Header="Template" Width="auto">
<GridViewColumn.CellTemplate>
<DataTemplate>
<CheckBox Content="{Binding Template}"></CheckBox>
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
</GridView>
</ListView.View>
</ListView>

后台代码需要给ListBoxView绑定数据:

 public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
ListViewDataList = new List<ListViewData>();
for (int i = ; i < ; i++)
{
ListViewDataList.Add(new ListViewData()
{
Num = i,
Name = "No_" + i.ToString(),
Template="Temlate:"+i.ToString()
});
}
this.ListView.ItemsSource = ListViewDataList;
}
public List<ListViewData> ListViewDataList { get; set; }
public class ListViewData
{
public int Num { get; set; }
public string Name { get; set; }
public string Template { get; set; }
} }

效果图:

所有代码已经上传到github:https://github.com/cmfGit/WpfDemo.git

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