WPF DataGrid 中的 IsSelected 绑定
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原文地址: http://stackoverflow.com/questions/14918602/
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IsSelected Binding in WPF DataGrid
提问by Hodaya Shalom
I have in my Model (Class X) Boolean property: IsSelected, is linked to a WPF DataGridas follows:
我在我的模型（X 类）布尔属性中：IsSelected, 链接到 aWPF DataGrid如下：
<DataGrid SelectedIndex="{Binding SelectedXIndex,Mode=TwoWay}"
DataContext="{Binding MyViewModel}"
ItemsSource="{Binding ListX}" AutoGenerateColumns="False">
<DataGrid.RowStyle>
<Style TargetType="{x:Type DataGridRow}">
<Setter Property="IsSelected"
Value="{Binding IsSelected, Mode=TwoWay,
UpdateSourceTrigger=PropertyChanged}"/>
</Style>
</DataGrid.RowStyle>
</DataGrid>
ListX- ObservableCollection
ListX- 可观察的集合
IsSelecte- Call to NotifyPropertyChange
IsSelecte- 调用 NotifyPropertyChange
It works great.
它工作得很好。
But when I have a lot of rows, that I need to scroll to see them, and I press the button "Select All" that runs the following function, he chooses me only some of the rows and not all: (Even though all the IsSelected on the list is true)
但是当我有很多行时，我需要滚动才能看到它们，然后我按下运行以下功能的“全选”按钮，他只选择了一些行而不是所有行：（即使所有的IsSelected名单上是真实的）
public void SelectAll()
{
ListX.All(c => c.IsSelected = true);
}
I can not understand why this is happening?
我不明白为什么会这样？
采纳答案by Hodaya Shalom
that's what helped me finally:
这就是最终帮助我的原因：
I put in the DataGrid:
我放入数据网格：
VirtualizingStackPanel.VirtualizationMode="Standard"
