WPF三级联动

WPF实现三级联动Grade-->Class-->Student，数据来自Access，采用LinqToAccess，已封装成DLL，数据库在附件中。

见图：

Code:

1. <Windowx:Class="Demo16_MasterDetailBinding2.MainWindow"
2. xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
3. xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
4. xmlns:local="clr-namespace:Demo16_MasterDetailBinding2"
5. xmlns:dl="clr-namespace:DataLibrary;assembly=DataLibrary"
6. Title="MainWindow"Height="350"Width="525">
7. <Window.Resources>
8. <ObjectDataProviderx:Key="gradeList"IsAsynchronous="True"
9. ObjectType="{x:Typelocal:MainWindow}"
10. MethodName="LoadData"/>
11. </Window.Resources>
12. <GridDataContext="{StaticResourcegradeList}">
13. <Grid.Resources>
14. <StyleTargetType="TextBlock">
15. <SetterProperty="Margin"Value="5"/>
16. </Style>
17. <StyleTargetType="ListBox">
18. <SetterProperty="Margin"Value="5"/>
19. </Style>
20. </Grid.Resources>
21. <Grid.ColumnDefinitions>
22. <ColumnDefinition/>
23. <ColumnDefinition/>
24. <ColumnDefinition/>
25. </Grid.ColumnDefinitions>
26. <Grid.RowDefinitions>
27. <RowDefinitionHeight="Auto"/>
28. <RowDefinition/>
29. </Grid.RowDefinitions>
30. <TextBlockText="Grade"Grid.Row="0"Grid.Column="0"/>
31. <TextBlockText="Class"Grid.Row="0"Grid.Column="1"/>
32. <TextBlockText="Student"Grid.Row="0"Grid.Column="2"/>
33. <ListBoxGrid.Row="1"Grid.Column="0"IsSynchronizedWithCurrentItem="True"ItemsSource="{Binding}"DisplayMemberPath="GradeName"/>
34. <ListBoxGrid.Row="1"Grid.Column="1"IsSynchronizedWithCurrentItem="True"ItemsSource="{BindingPath=Class}"DisplayMemberPath="ClassName"/>
35. <ListBoxGrid.Row="1"Grid.Column="2"IsSynchronizedWithCurrentItem="True"ItemsSource="{BindingPath=Class/Student}"DisplayMemberPath="StudentName"/>
36. </Grid>
37. </Window>

Code:

1. usingSystem.Linq;
2. usingSystem.Windows;
3. usingDataLibrary;
4. namespaceDemo16_MasterDetailBinding2{
5. ///<summary>
6. ///MainWindow.xaml的交互逻辑
7. ///</summary>
8. publicpartialclassMainWindow:Window{
9. publicMainWindow(){
10. InitializeComponent();
11. }
12. ///<summary>
13. ///加载数据，请注意使用publicstatic
14. ///</summary>
15. publicstaticIQueryableLoadData(){
16. MySchoolDataContextdc=Linq2AccessFactory.GetMySchoolDataContext();
17. varquery=fromgindc.Grade
18. selectg;
19. returnquery;
20. }
21. }
22. }

共享链接：http://download.csdn.net/detail/qing2005/4001862