请问 WPF中如何动态改变 ListView中 某一个值 颜色。

Posted 2023-03-16

ListView已经绑定数据库，希望能在数据库某个值改变，修改该值对应的 ListView控件中那一个位置的颜色。

wpf和silverlight一样，在数据绑定的时候提供了前台显示转换机制——Converter。
比如你一个textblock显示一个int值，当值>0显示绿色；小于0显示红色。
那么你创建一个Converter类做下数据转换的处理（网上有很多实例及相关教程）
前台就是这样使用：<textblock text= binding 内容属性 foreGround = binding 内容属性,Converter=staicResource 创建的Converter资源>
这样一来 textblock的字体颜色就会随内容变化而变化。同理可应用到ListView控件。追问

下班了 明天就来试试 先感谢下 ~~明天可能还会继续拜托您的 ~

参考技术A 绑定数据库后..遍历下ListView，通过验证某个值是否发生改变从而改变颜色

WPF中ListView如何改变选中条背景颜色

先上图

解决方法:

<ListView ...>
    <ListView.ItemContainerStyle>
        <Style TargetType="{x:Type ListViewItem}">
            <Style.Resources>
                <!-- Foreground for Selected ListViewItem -->
                <SolidColorBrush x:Key="{x:Static SystemColors.HighlightTextBrushKey}" 
                                 Color="Black"/>
                <!-- Background for Selected ListViewItem -->
                <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}"
                                 Color="Transparent"/>
            </Style.Resources>
        </Style>
    </ListView.ItemContainerStyle>
    ...
</ListView>

 

解决问题

在CSDN上找到另外一种方法:

用StyleSnooper看一下默认的Style，改一下就可以了。

三种颜色 IsMouseOver = Blue
        Select & Focus = Red
        Select & UnFocus = Yellow

大家也可以尝试下:

<Window x:Class="WpfApplication1.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Window1" Height="300" Width="300">
    <Window.Resources>
        <Style TargetType="ListViewItem">
            <Style.Resources>
                <SolidColorBrush x:Key="{x:Static SystemColors.ControlBrushKey}" Color="Yellow"/>
                <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color=" Red"/>
            </Style.Resources>
            <Setter Property="Panel.Background" Value="#00FFFFFF"/>
            <Setter Property="Control.HorizontalContentAlignment">
                <Setter.Value>
                    <Binding Path="HorizontalContentAlignment" 
                             RelativeSource="{RelativeSource Mode=FindAncestor, AncestorType=ItemsControl, AncestorLevel=1}" />
                </Setter.Value>
            </Setter>
            <Setter Property="Control.VerticalContentAlignment">
                <Setter.Value>
                    <Binding Path="VerticalContentAlignment" 
                             RelativeSource="{RelativeSource Mode=FindAncestor, AncestorType=ItemsControl, AncestorLevel=1}" />
                </Setter.Value>
            </Setter>
            <Setter Property="Control.Padding" Value="2,0,0,0"/>
            <Setter Property="Control.Template">
                <Setter.Value>
                    <ControlTemplate TargetType="ListViewItem">
                        <Border BorderThickness="{TemplateBinding Border.BorderThickness}" 
                                Padding="{TemplateBinding Control.Padding}" 
                                BorderBrush="{TemplateBinding Border.BorderBrush}" 
                                Background="{TemplateBinding Panel.Background}" 
                                Name="Bd" 
                                SnapsToDevicePixels="True">
                            <ContentPresenter 
                                Content="{TemplateBinding ContentControl.Content}" 
                                ContentTemplate="{TemplateBinding ContentControl.ContentTemplate}" 
                                ContentStringFormat="{TemplateBinding ContentControl.ContentStringFormat}" 
                                HorizontalAlignment="{TemplateBinding Control.HorizontalContentAlignment}" 
                                VerticalAlignment="{TemplateBinding Control.VerticalContentAlignment}" 
                                SnapsToDevicePixels="{TemplateBinding UIElement.SnapsToDevicePixels}" />
                        </Border>
                        <ControlTemplate.Triggers>
                            <Trigger Property="Selector.IsSelected" Value="True">
                                <Setter Property="Panel.Background" TargetName="Bd">
                                    <Setter.Value>
                                        <DynamicResource ResourceKey="{x:Static SystemColors.HighlightBrushKey}" />
                                    </Setter.Value>
                                </Setter>
                                <Setter Property="TextElement.Foreground">
                                    <Setter.Value>
                                        <DynamicResource ResourceKey="{x:Static SystemColors.HighlightTextBrushKey}" />
                                    </Setter.Value>
                                </Setter>
                            </Trigger>
                            <MultiTrigger>
                                <MultiTrigger.Conditions>
                                    <Condition Property="Selector.IsSelected" Value="True"/>
                                    <Condition Property="Selector.IsSelectionActive" Value="False"/>
                                </MultiTrigger.Conditions>
                                <Setter Property="Panel.Background" TargetName="Bd">
                                    <Setter.Value>
                                        <DynamicResource ResourceKey="{x:Static SystemColors.ControlBrushKey}" />
                                    </Setter.Value>
                                </Setter>
                                <Setter Property="TextElement.Foreground">
                                    <Setter.Value>
                                        <DynamicResource ResourceKey="{x:Static SystemColors.ControlTextBrushKey}" />
                                    </Setter.Value>
                                </Setter>
                            </MultiTrigger>
                            <Trigger Property="UIElement.IsEnabled" Value="False">
                                <Setter Property="TextElement.Foreground">
                                    <Setter.Value>
                                        <DynamicResource ResourceKey="{x:Static SystemColors.GrayTextBrushKey}" />
                                    </Setter.Value>
                                </Setter>
                            </Trigger>
                            <Trigger Property="UIElement.IsMouseOver" Value="True">
                                <Setter Property="Panel.Background" TargetName="Bd" Value="Blue">
                                </Setter>
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
    </Window.Resources>
    <Grid>
        <ListView Margin="48,22,110,0" Name="listView1" Height="100" VerticalAlignment="Top">
            <ListView.View>
                <GridView>
                    <GridViewColumn Header="12"/>
                    <GridViewColumn Header="12"/>
                    <GridViewColumn Header="12"/>
                </GridView>
            </ListView.View>
            <ListViewItem>123</ListViewItem>
            <ListViewItem>123</ListViewItem>
            <ListViewItem>123</ListViewItem>
        </ListView>
        <TextBox Height="23" Margin="94,0,64,67" Name="textBox1" VerticalAlignment="Bottom" />
    </Grid>
</Window>

 http://www.cnblogs.com/smiler/p/3335531.html