已经环顾了大约 4 个小时,所以如果答案在这里,我很抱歉。无论如何..这里是:
我有一个 DataGrid,并且正在尝试实现一个 DatGridComboBoxColumn。我已经设法让它提供正确的数据。但是,当我进行选择时,它不仅会更改所选列,还会更改主表中的另一列。
具体来说:
我的组表如下所示:
Id,Name
1,A
2,B
3,C
如果我在 DataGridComboBoxColumn 中选择 A,它会将 Schedules DataSource 中的GroupId字段更改为正确的值 1。但是 - 它还会将 Schedules DataSource 中的Name字段更改为“A”。我已经尝试了大约 70 种不同的设置方式组合。唯一可以将 Schedules 中的 Name 字段重命名为 ScheduleName 之类的其他名称。这是 WPF 中的某种错误还是我没有正确编码?
任何帮助都感激不尽!
奥森
这是页面代码:
<Page x:Class="Bix.SchedulesMainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
mc:Ignorable="d"
d:DesignHeight="565" d:DesignWidth="775"
Title="SchedulesMainPage" xmlns:my="clr-namespace:Bix">
<Page.Resources>
<ObjectDataProvider x:Key="ScheduleDataProvider" ObjectType="{x:Type my:ScheduleDataProvider}"/>
<ObjectDataProvider x:Key="Schedules"
ObjectInstance="{StaticResource ScheduleDataProvider}"
MethodName="GetSchedules"/>
<ObjectDataProvider x:Key="GroupDataProvider" ObjectType="{x:Type my:GroupDataProvider}"/>
<ObjectDataProvider x:Key="Groups"
ObjectInstance="{StaticResource GroupDataProvider}"
MethodName="GetGroups"/>
<ObjectDataProvider x:Key="ReportDataProvider" ObjectType="{x:Type my:ReportDataProvider}"/>
<ObjectDataProvider x:Key="Reports"
ObjectInstance="{StaticResource ReportDataProvider}"
MethodName="GetReports"/>
</Page.Resources>
<Grid>
<Label Content="Schedules" FontSize="32" FontWeight="Bold" Foreground="#FF5A5A5A" Height="52" HorizontalAlignment="Left" Margin="10,10,0,0" Name="label1" VerticalAlignment="Top" Width="719" />
<DataGrid AutoGenerateColumns="False" DataContext="{Binding Source={StaticResource Schedules}}" Height="224" HorizontalAlignment="Left" HorizontalGridLinesBrush="#FFCBCBCB" ItemsSource="{Binding}" Margin="12,68,0,0" Name="dgrdContacts" VerticalAlignment="Top" VerticalGridLinesBrush="#FFCBCBCB" Width="751">
<DataGrid.Columns>
<DataGridTextColumn Binding="{Binding Path=Name}" Header="Name" Width="120" />
<DataGridComboBoxColumn Header="Contact Group"
SelectedValueBinding="{Binding Path=GroupId}" DisplayMemberPath="Name" SelectedValuePath="Id" ItemsSource="{Binding Source={StaticResource Groups}}">
<DataGridComboBoxColumn.ElementStyle>
<Style TargetType="ComboBox">
<Setter Property="ItemsSource" Value="{Binding Source={StaticResource Groups}}" />
<Setter Property="Text" Value="{Binding Name}" />
</Style>
</DataGridComboBoxColumn.ElementStyle>
<DataGridComboBoxColumn.EditingElementStyle>
<Style TargetType="ComboBox">
<Setter Property="ItemsSource" Value="{Binding Source={StaticResource Groups}}" />
<Setter Property="Text" Value="{Binding Name}" />
</Style>
</DataGridComboBoxColumn.EditingElementStyle>
</DataGridComboBoxColumn>
<DataGridTextColumn Binding="{Binding Path=Interval}" Header="Send Every" Width="120" />
<DataGridTextColumn Binding="{Binding Path=IntervalUnit}" Header="Time Unit" Width="120" />
<DataGridTextColumn Binding="{Binding Path=LastSend}" Header="Last Sent" Width="*" />
</DataGrid.Columns>
</DataGrid>
</Grid>
</Page>