改变ListView项的前景色仅在一列 [英] Change the foreground color of a ListView item only in one column

问题描述

我有对象的名单，并在那里我显示此列表一个ListView。这样的对象具有一定的属性，它们被绑定到ListView的列。

I have a List of objects and a ListView where I display this list. Such an object has some properties, they are bound to the columns of the ListView.

<ListView x:Name="_fileNameList" FontSize="12" SourceUpdated="_fileNameList_SourceUpdated" TargetUpdated="_fileNameList_TargetUpdated">
    <ListView.View>
        <GridView x:Name="FileNameAttributes" >
            <GridViewColumn  Header="File Name"   Width="200" DisplayMemberBinding="{Binding fileName}"/>
            <GridViewColumn  Header="Size" Width="80" DisplayMemberBinding="{Binding size}"/>
            <GridViewColumn  Header="Date" Width="80" DisplayMemberBinding="{Binding date}"/>
            <GridViewColumn  Header="Time" Width="80" DisplayMemberBinding="{Binding time}"/>
            <GridViewColumn  Header="New Name" Width="300" DisplayMemberBinding="{Binding newFileName}"/>
        </GridView>
    </ListView.View>
</ListView>

这部分工作正常。

现在我想改变 newFileName 列的前景色在单行中，但只有当它等于文件名在同一行

Now I want to change the Foreground color of the newFileName column in a single row, but only if it is equal to the 'fileName' in the same row.

我可以做到这一点在XAML还是我得去隐藏文件code？

Can I do this in XAML or do I have to go to the code behind file?

我想最好的喜欢它，如果我能处理它在XAML，因为我觉得它是一个纯粹的设计问题，但我不知道，从哪里开始或在哪里把这个，（我可以做字符串比较在XAML？）

I would like it best if I could handle it in XAML, because I think its a pure design issue, but I have no idea, where to start or where to put this, (can I do String comparisons in XAML?)

于是，我就在文件后面code来处理这个问题。我认为有必须是提出当ListView控件已经改变了，我试过 SourceUpdated 事件的事件，但是当我改变我的列表的内容是没有进入。< BR>
接下来的问题是，如何访问这些项目的ListView ...

So I tried to handle this in the code behind file. I thought there must be an event that is raised when the ListView has changed, I tried the SourceUpdated event, but it is not entered when I change the content of my list.
The next problem would be, how to access those ListView items ...

谁能给我一个想法，我怎么能解决这个问题？

Can anyone give me an idea how I can solve this?

推荐答案

您可以做到这一点使用MultiBinding和多转换。
您将需要编写一个多转换这需要文件名和newFileName，如果它们相等，则返回true

You can do this using MultiBinding and MultiConverter. You will need to write a MultiConverter which takes fileName and newFileName and returns true if they are equal

<ListView x:Name="_fileNameList" FontSize="12" SourceUpdated="_fileNameList_SourceUpdated" TargetUpdated="_fileNameList_TargetUpdated">
            <ListView.View>
                <GridView x:Name="FileNameAttributes" >
                    <GridViewColumn  Header="File Name"   Width="200" DisplayMemberBinding="{Binding fileName}"/>
                    <GridViewColumn  Header="Size" Width="80" DisplayMemberBinding="{Binding size}"/>
                    <GridViewColumn  Header="Date" Width="80" DisplayMemberBinding="{Binding date}"/>
                    <GridViewColumn  Header="Time" Width="80" DisplayMemberBinding="{Binding time}"/>
                    <GridViewColumn  Header="New Name" Width="300">
                        <GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <TextBlock Text="{Binding newFileName}">
                                    <TextBlock.Style>
                                        <Style>
                                            <Setter Property="TextBlock.Foreground" Value="Black"></Setter>
                                            <Style.Triggers>
                                                 <DataTrigger Value="True">
                                                     <DataTrigger.Binding>
                                                         <MultiBinding Converter="{StaticResource EqualityConverter}">
                                                             <Binding Path="newFileName"></Binding>
                                                             <Binding Path="fileName"></Binding>
                                                         </MultiBinding>
                                                     </DataTrigger.Binding>
                                        <Setter Property="TextBlock.Foreground" Value="Red"></Setter>
                                    </DataTrigger>
                                            </Style.Triggers>
                                        </Style>
                                    </TextBlock.Style>
                                </TextBlock>

                            </DataTemplate>
                        </GridViewColumn.CellTemplate>
                    </GridViewColumn>
                </GridView>
            </ListView.View>
        </ListView>

在code为EqualityConverter是如下：

The code for EqualityConverter is as below :

public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
        {
            if (values[0].ToString().Equals(values[1].ToString()))
                return true;
            return false;
        }

这篇关于改变ListView项的前景色仅在一列的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！