我找的如何使用一個WPF的DataGrid的組合框裏面的SelectedItem屬性的例子,我有WPF DataGrid中的ComboBox selectedItem屬性二傳手
<DataGridComboBoxColumn SelectedValueBinding="{Binding CID, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}"
SelectedValuePath="CID"
Header="CID"
Width="70">
<DataGridComboBoxColumn.EditingElementStyle>
<Style TargetType="ComboBox">
<Setter Property="ItemsSource" Value="{Binding DataContext.ListCustomerCollection,
RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=Window}}"/>
<Setter Property="DisplayMemberPath" Value="Name"/>
<Setter Property="SelectedItem" Value="{Binding DataContext.Customer, RelativeSource={RelativeSource Mode=FindAncestor,AncestorType=Window}}"></Setter>
</Style>
</DataGridComboBoxColumn.EditingElementStyle>
<DataGridComboBoxColumn.ElementStyle>
<Style TargetType="ComboBox">
<Setter Property="ItemsSource" Value="{Binding DataContext.ListCustomerCollection, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=Window}}"/>
<Setter Property="DisplayMemberPath" Value="Name"/>
<Setter Property="HorizontalAlignment" Value="Center"></Setter>
<Setter Property="SelectedItem" Value="{Binding DataContext.Customer, RelativeSource={RelativeSource Mode=FindAncestor,AncestorType=Window}}"></Setter>
</Style>
</DataGridComboBoxColumn.ElementStyle>
DataContext的我綁定(ListCustomerCollection)是一個列表反對
List<Customer>
所以我已經設置了視圖模型屬性的屬性是
private Customer m_Customer = null;
public Customer Customer
{
get { return m_Customer; }
set
{
m_Customer = value;
OnPropertyChanged("Customer");
}
}
那麼如何寫入XAML來設置SelectedItem的上述屬性?
你有'SelectedValue','SelectedItem'或'SelectedIndex'屬性集嗎? 'DisplayMemberPath'只設置用於顯示組合框中的項目的值,並不用於所選項目 – Rachel
嗨Rachel,我將發佈上面的所有XAML,謝謝 – user3428422
然而,它應該是SelectedItem,因爲它是這是導致問題,我不介意選擇組合的SelectedValue時,我只需要返回值 – user3428422