我正在努力解决 WPF/Silverlight 中的绑定问题。我有一个 Listview 女巫,由 EF linq 查询的 DataContext 填充。在同一个用户控件中是文本框。更改它们的值时,列表视图会刷新,并且数据会在 de db bij .SaveChanges 中更改。问题是,如果我使用组合框,则会保存数据,但不会更新列表视图。
你能帮上忙吗???这是xml
<ListView Grid.Row="1" Grid.Column="0" Margin="4,4,4,0" x:Name="controlsListBox" Grid.RowSpan="7" ItemsSource="{Binding}" SelectedValuePath="ID" LostFocus="controlsListBox_LostFocus">
<ListView.View>
<GridView>
<GridViewColumn Width="25" Header="Rw" DisplayMemberBinding="{Binding RowNr}"/>
<GridViewColumn Width="25" Header="Cl" DisplayMemberBinding="{Binding ColumnNr}"/>
<GridViewColumn Width="100" Header="Name" DisplayMemberBinding="{Binding Name}"/>
<GridViewColumn Width="25" Header="Tb" DisplayMemberBinding="{Binding TabIndex}"/>
<GridViewColumn Width="100" Header="Type" DisplayMemberBinding="{Binding ControlTypes.Name}"/>
<GridViewColumn Width="100" Header="Text" DisplayMemberBinding="{Binding TextResources.Text}"/>
</GridView>
</ListView.View>
</ListView>
<Label Grid.Row="2" Grid.Column="5" Height="23" Margin="4,4,4,0" x:Name="rowSpanLabel" VerticalAlignment="Top"
Content="RowNr"/>
<TextBox Grid.Row="2" Grid.Column="6" Height="23" Margin="4,4,4,0" x:Name="rowSpanTextBox" VerticalAlignment="Top"
Text="{Binding Path=SelectedItem.RowNr, ElementName=controlsListBox}"/>
<Label Grid.Row="4" Grid.Column="1" Grid.ColumnSpan="2" Height="23" Margin="4,4,4,0" x:Name="controlTypeLabel" VerticalAlignment="Top"
Content="Type"/>
<ComboBox Grid.Row="4" Grid.Column="2" Grid.ColumnSpan="5" Height="23" Margin="4,4,4,0" x:Name="controlTypeComboBox" VerticalAlignment="Top"
DataContext="{Binding Path=ControlTypes, ElementName=controlsListBox}" IsSynchronizedWithCurrentItem="True" DisplayMemberPath="Name"
SelectedItem="{Binding Path=SelectedItem.ControlTypes, ElementName=controlsListBox, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
/>
这里是 C# 代码:_controlProperties.Clear(); var data = (from x in _dataContext.ControlProperties where x.FormProperties.ID == 1 orderby x.RowNr, x.ColumnNr, x.Name select x); foreach (var item in data) { item.TextResourcesReference.Load(); _controlProperties.Add(项目); } // DataContext 必须首先设置为 null 以获得良好的结果。控件列表框.DataContext = null; 控件列表框.DataContext = _controlProperties;
controlTypeComboBox.DataContext = (from c in _dataContext.ControlTypes
orderby c.Name
select c).ToList();