StringFormat 是否可以与 this.DataContext 一起使用

发布于 2024-10-13 21:16:36 字数 389 浏览 2 评论 0原文

我通过 this.DataContext = SellerList; 将 TextBlock 与代码隐藏中的集合绑定在一起输出是正确的，但是当我应用 StringFormat 时，我看不到结果。以下是xaml页面上TextBlock的代码

<TextBlock Name="dateDTKey" Grid.Row="1" Grid.Column="2" HorizontalAlignment="Right" VerticalAlignment="Bottom" 
      Text="{Binding Path=Date, StringFormat={}{0:dd-MM-yyyy}}" 
      Style="{StaticResource textStyleTextBlock}"/>

原文

I am binding a TextBlock with a collection in code-behind via this.DataContext = SellerList;
The output is correct but when i apply StringFormat, i see no result. Following is the code for TextBlock on xaml page

<TextBlock Name="dateDTKey" Grid.Row="1" Grid.Column="2" HorizontalAlignment="Right" VerticalAlignment="Bottom" 
      Text="{Binding Path=Date, StringFormat={}{0:dd-MM-yyyy}}" 
      Style="{StaticResource textStyleTextBlock}"/>

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活泼老夫 2024-10-20 21:16:36

绑定的源是一个字符串，如果 detailsSellerListingTemplate 是您应该使用 {StaticResourcedetailsSellerListingTemplate} 的资源。此外，TextBlock 不需要 DataContext 即可使此 Binding 工作，因为它使用 Source。

<Window.Resources>
    <local:DetailsSeller x:Key="detailsSellerListingTemplate"/>
</Window.Resources>
<TextBlock Name="dateDTKey"
           HorizontalAlignment="Right"
           VerticalAlignment="Bottom"
           Text="{Binding Source={StaticResource detailsSellerListingTemplate},
                          Path=Date,
                          StringFormat={}{0:dd-MM-yyyy}}"/>

如果 DetailsSeller 看起来与此类似，这将起作用

public class DetailsSeller
{
    public DetailsSeller()
    {
        Date = DateTime.Now;
    }

    public DateTime Date
    {
        get;
        set;
    }
}

您谈到了一个集合，但我看不出它如何与绑定相匹配，所以也许我误解了问题中的某些内容

The source for the Binding is a string, if detailsSellerListingTemplate is a resource you should use {StaticResource detailsSellerListingTemplate}. Also, the TextBlock doesn't need a DataContext for this Binding to work since it's using Source.

<Window.Resources>
    <local:DetailsSeller x:Key="detailsSellerListingTemplate"/>
</Window.Resources>
<TextBlock Name="dateDTKey"
           HorizontalAlignment="Right"
           VerticalAlignment="Bottom"
           Text="{Binding Source={StaticResource detailsSellerListingTemplate},
                          Path=Date,
                          StringFormat={}{0:dd-MM-yyyy}}"/>

This will work if DetailsSeller looks similar to this

public class DetailsSeller
{
    public DetailsSeller()
    {
        Date = DateTime.Now;
    }

    public DateTime Date
    {
        get;
        set;
    }
}

You talked about a collection but I can't see how that fits with the binding, so maybe I missunderstood something in the question

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