WPF DataGrid的过滤 - 刷新CollectionViewSource刷新 [英] WPF DataGrid Filtering - Refreshing CollectionViewSource Refreshing

问题描述

我想知道我怎么能刷新CollectionViewSource点击一个按钮时？

I want to know how I can refresh a CollectionViewSource when a button is clicked?

到目前为止，我有

<Window.Resources>
    <CollectionViewSource x:Key="cvsCustomers"
                          Source="{Binding CustomerCollection}" 
                          Filter="CollectionViewSource_Filter" >
    </CollectionViewSource>
</Window.Resources>

它创建CollectionViewSource ...

Which creates the CollectionViewSource...

<DataGrid HorizontalAlignment="Left" 
              Height="210" 
              Margin="47,153,0,0"
              VerticalAlignment="Top" Width="410"
              ItemsSource="{Binding Source={StaticResource cvsCustomers}}"
              CanUserAddRows="False"

结合源头上我的Datagrid

Which binds the source to my Datagrid

    private void CollectionViewSource_Filter(object sender, FilterEventArgs e)
    {
        Customer t = e.Item as Customer;
        if (t != null)
        // If filter is turned on, filter completed items.
        {
            if (t.Name.Contains(txtSearch.Text))
            {
                e.Accepted = true;
            }
            else
            {
                e.Accepted = false;
            }
        }
    }

在我看来，一个过滤器

And a filter in my View,

一切似乎是工作（项目被一定到网格），但我怎么刷新视图或网格，以便我可以解雇上述功能再次使电网也得到过滤？ （通过点击一个按钮真的）

Everything seems to be working (items are being bounded to the grid) but how do I refresh the view or grid so I can fire of the above function again so the grid does get filtered? (by a button click really)

感谢

推荐答案

呼叫< STRONG> 刷新（） <上/ STRONG> 查看 属性的 CollectionViewSource 以得到它刷新。

Call Refresh() on View property of CollectionViewSource to get it refreshed.

如果你想这样做就按一下按钮，你需要首先从窗口资源访问CollectionViewSource然后调用视图刷新。

In case you want to do it on button click, you need to access CollectionViewSource from window resources first and then call refresh on its View.

((CollectionViewSource)this.Resources["cvsCustomers"]).View.Refresh();

这篇关于WPF DataGrid的过滤 - 刷新CollectionViewSource刷新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！