本文介绍了WPF 列表框空数据模板的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着跟版网的小编来一起学习吧!
问题描述
我想知道人们如何处理没有项目的 ListBox 控件?例如我想绑定一个搜索结果列表,但如果没有找到结果,我想显示未找到结果".
I was wondering how people handle a ListBox control that has no items? e.g. I want to bind a list of search results but if no results are found i would like to display "No results found".
我目前解决此问题的方法是,如果结果集计数 = 0,我将隐藏列表框并显示带有未找到结果"消息的标签.理想情况下,我想要 ASP .NET datagrid EmptyTemplate 解决方案.
The way i currently tackle this is that i hide the listbox if the result set count = 0 and show a label with the "No results found" message. Ideally i would like something like the ASP .NET datagrid EmptyTemplate solution.
干杯
推荐答案
我已经用这段代码取得了一些成功:
I've had some success with this code:
<Style TargetType="ListBox" x:Key="ListStyle" BasedOn="{StaticResource {x:Type ListBox}}">
<Style.Triggers>
<DataTrigger
Binding="{Binding RelativeSource={x:Static RelativeSource.Self}, Path=Items.Count}"
Value="0"
>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<TextBlock>No items to display</TextBlock>
</ControlTemplate>
</Setter.Value>
</Setter>
</DataTrigger>
</Style.Triggers>
</Style>
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