<telerik:RadGridView x:Name="rgvData" CanUserFreezeColumns="False" GridLinesVisibility="Horizontal" IsReadOnly="False" AutoGenerateColumns="False"
telerik:Theming.Theme="Office_Blue" ItemsSource="{Binding}" >
<telerik:RadGridView.ChildTableDefinitions>
<telerik:GridViewTableDefinition />
</telerik:RadGridView.ChildTableDefinitions>
<telerik:RadGridView.Columns>
<telerik:GridViewDataColumn DataMemberBinding="{Binding StudentID}" Header="Category ID" />
<telerik:GridViewDataColumn DataMemberBinding="{Binding StudentFN}" Header="Category Name" />
<telerik:GridViewDataColumn DataMemberBinding="{Binding StudentLN}" Header="Description" />
<telerik:GridViewDataColumn DataMemberBinding="{Binding Picture}" Header="Picture" />
</telerik:RadGridView.Columns>
<telerik:RadGridView.HierarchyChildTemplate>
<DataTemplate>
<telerik:RadGridView x:Name="RadGridView1" Loaded="rgvData_Loaded" ShowInsertRow="True" CanUserInsertRows="True" ItemsSource="{Binding Subjects}" CanUserFreezeColumns="False" AutoGenerateColumns="False" ShowGroupPanel="False" IsReadOnly="False">
<telerik:RadGridView.Columns>
<telerik:GridViewDataColumn DataMemberBinding="{Binding SubjectID}" Header="Order ID" />
<telerik:GridViewDataColumn DataMemberBinding="{Binding SubjectName}" Header="Employee ID" />
<telerik:GridViewDataColumn DataMemberBinding="{Binding SubjectProfessor}" Header="Order Date" />
<telerik:GridViewDataColumn DataMemberBinding="{Binding ShipCountry}" Header="Ship Country" />
</telerik:RadGridView.Columns>
</telerik:RadGridView>
</DataTemplate>
</telerik:RadGridView.HierarchyChildTemplate>
</telerik:RadGridView>
MainXaml.Cs
public partial class MainWindow : Window
{
DataAccessDataContext m_dcData;
public MainWindow()
{
InitializeComponent();
this.Loaded += new RoutedEventHandler(MainWindow_Loaded);
this.rgvData.Items.CollectionChanged += new NotifyCollectionChangedEventHandler(Items_CollectionChanged);
rgvData.Filtered += new EventHandler<Telerik.Windows.Controls.GridView.GridViewFilteredEventArgs>(rgvData_Filtered);
}
void rgvData_Loaded(object sender, RoutedEventArgs e)
{
var childGrid = (RadGridView)sender;
var parentRow = childGrid.ParentRow;
if (parentRow != null)
{
rgvData.SelectedItem = childGrid.DataContext;
parentRow.IsExpandedChanged += new RoutedEventHandler(parentRow_IsExpandedChanged);
}
}
void parentRow_IsExpandedChanged(object sender, RoutedEventArgs e)
{
rgvData.SelectedItem = ((GridViewRow)sender).DataContext;
}x
void rgvData_Filtered(object sender, Telerik.Windows.Controls.GridView.GridViewFilteredEventArgs e)
{
DataContext = m_dcData;
m_dcData = new DataAccessDataContext();
m_dcData.Log = Console.Out;
rgvData.ItemsSource = m_dcData.Students;
rgvData.ShowInsertRow = true;
}
private void Items_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
try
{
if (e.Action == NotifyCollectionChangedAction.Add)
{
foreach (Student item in e.NewItems)
{
m_dcData.Students.InsertOnSubmit(item);
}
}
if (e.Action == NotifyCollectionChangedAction.Remove)
{
foreach (Student item in e.OldItems)
{
m_dcData.Students.DeleteOnSubmit(item);
}
}
}
catch (Exception s)
{ }
}
void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
m_dcData = new DataAccessDataContext();
m_dcData.Log = Console.Out;
rgvData.ItemsSource = m_dcData.Students;
rgvData.ShowInsertRow = true;
rgvData.ItemsSource = m_dcData.Students;
rgvData.ShowInsertRow = true;
}
}
嗨,我在加载与其父源相关的子数据时没有问题。问题是,如果我尝试扩展另一行,它会为其加载第一个数据。例如,如果我将 row1 展开,它会显示正确的子表,但如果我转到 row2 并展开它,它的子记录用于 row1。我尝试寻找答案并放置 parent_IsExpandedChanged 事件来处理它,但它仍然不会显示正确的数据。如果我尝试再次重新加载应用程序并尝试展开第 2 行或第 3 行。它的子项是正确的,但如果我展开另一行,它将显示第 2 行或第 3 行的子项。请帮助我做错了什么