显示一些文本的时候绑定列表视图没有任何项目 [英] Display some text when binded listview has no items

问题描述

以下是其绑定到一个类的语法我的列表视图......

Following is the syntax for my listview which is binded to a class....

<ListView ItemContainerStyle="{StaticResource listViewStyle}" Name="transactionListView" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" ItemsSource="{Binding}" MouseDoubleClick="transactionListView_MouseDoubleClick" IsSynchronizedWithCurrentItem="True" >
    <ListView.View>
        <GridView ColumnHeaderContainerStyle="{StaticResource gridViewHeaderColumnStyle}">
            <GridView.Columns>
                <GridViewColumn Width="70" Header="Serial" DisplayMemberBinding="{Binding Path=Serial}" />
                <GridViewColumn Width="100" Header="Date" DisplayMemberBinding="{Binding Path=Date, StringFormat={}{0:dd-MM-yyyy}}" />
                <GridViewColumn Width="200" Header="Seller" DisplayMemberBinding="{Binding Path=Seller}" />
                <GridViewColumn Width="200" Header="Buyer" DisplayMemberBinding="{Binding Path=Buyer}" />
                <GridViewColumn Width="70" Header="Bales" DisplayMemberBinding="{Binding Path=Bales}" />
            </GridView.Columns>
        </GridView>
    </ListView.View>
</ListView>

*我怎么能显示一些文字，当列表为空或不包含的项目？

*How can i display some text when the list is empty or contain no items?

推荐答案

诀窍是压倒一切的ListView的模板。当有ListView中没有的项目，你应该设置你的ControlTemplate与TextBlock的：

The trick is in overriding ListView's template. When there are no items in ListView you should set your ControlTemplate with TextBlock:

<ListView Name="List" ItemsSource="{Binding Items}">
    <ListView.Style>
        <Style TargetType="ListView">
            <Style.Triggers>
                <Trigger Property="HasItems"
                         Value="False">
                    <Setter Property="Template">
                        <Setter.Value>
                            <ControlTemplate TargetType="ListView">
                                <TextBlock Text="No items..."/>
                            </ControlTemplate>
                        </Setter.Value>
                    </Setter>
                </Trigger>
            </Style.Triggers>
        </Style>
    </ListView.Style>
</ListView>

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