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我有Expander一个CollectionView. 我尝试在每一行中选择一个单选按钮，但每次滚动多行时，即使未选择该行，也会显示与选中相同的单选按钮。我正在使用 xamarin 表单 5.0.0.1874

这是我的代码

<CollectionView ItemsSource="{Binding sI_Refill_s}">
         <CollectionView.ItemTemplate>
             <DataTemplate>
                  <yummy:PancakeView CornerRadius="10" BackgroundColor="{StaticResource GreenColor}" Padding="10">
                    <xct:Expander IsExpanded="{Binding IsEnable}">
                        <xct:Expander.Header>
                             <Grid RowDefinitions="Auto,Auto" ColumnDefinitions="*,*,*" RowSpacing="10" Padding="05">
                                <!--ROW1-->
                                <Label Grid.Row="0" Grid.Column="0"  Text="Last" Style="{StaticResource headerStyle}"/>
                                <Label Grid.Row="0" Grid.Column="1"  Text="DOB" Style="{StaticResource headerStyle}"/>
                                <Label Grid.Row="0" Grid.Column="2"  Text="Reason" Style="{StaticResource headerStyle}"/>

                                <!--ROW2-->
                                <Label Grid.Row="1" Grid.Column="0"  Text="{Binding Last}" Style="{StaticResource ValStyle}"/>
                                <Label Grid.Row="1" Grid.Column="1"  Text="{Binding DOB}" Style="{StaticResource ValStyle}"/>
                                <Entry Grid.Row="1" Grid.Column="2"  Text="{Binding Reason, Mode=TwoWay}" HorizontalOptions="Fill" Style="{StaticResource ValStyle}"/>
                              </Grid>
                        </xct:Expander.Header>
                        <xct:Expander.ContentTemplate>
                            <DataTemplate>
                                <Grid RowDefinitions="Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto" ColumnDefinitions="*,*,*,*,*" RowSpacing="10">

                                    <!--ROW3-->
                                    <Label Grid.Row="0" Grid.Column="0" Text="First" Style="{StaticResource headerStyle}"/>
                                    <Label Grid.Row="0" Grid.Column="1" Text="L_DISP_DT" Style="{StaticResource headerStyle}"/>
                                    <Label Grid.Row="0" Grid.Column="2" Text="REM_INJS" Style="{StaticResource headerStyle}"/>
                                    <Label Grid.Row="0" Grid.Column="3" Text="STATUS" Style="{StaticResource headerStyle}"/>
                                    <Label Grid.Row="0" Grid.Column="4" Text="Refill#" Style="{StaticResource headerStyle}"/>
                                     <!--ROW4-->
                                    <Label Grid.Row="1" Grid.Column="0" Text="{Binding First}" Style="{StaticResource ValStyle}"/>
                                    <Label Grid.Row="1" Grid.Column="1" Text="{Binding L_Disp_Dt}" Style="{StaticResource ValStyle}"/>
                                    <Label Grid.Row="1" Grid.Column="2" Text="{Binding Rem_injs}" Style="{StaticResource ValStyle}"/>
                                    <Label Grid.Row="1" Grid.Column="3" Text="{Binding Status}" Style="{StaticResource ValStyle}"/>
                                    <Label Grid.Row="1" Grid.Column="4" Text="{Binding RefillNo}" Style="{StaticResource ValStyle}"/>
                                     <!--ROW5-->
                                    <Label Grid.Row="2" Grid.Column="0" Grid.ColumnSpan="5" Text="Decision" Style="{StaticResource headerStyle}"/>
                                    <!--ROW6-->
                                    <StackLayout Grid.Row="3" Grid.Column="0" Grid.ColumnSpan="5"
                                                 RadioButtonGroup.GroupName="{Binding groupName}"
                                                 RadioButtonGroup.SelectedValue="{Binding SelectedItem}" Orientation="Horizontal" HorizontalOptions="Center">
                                        <RadioButton Content="Approved"
                                                     Value="Approved" FontSize="Micro"/>
                                        <RadioButton Content="Hold"
                                                     Value="Hold" FontSize="Micro"/>
                                        <RadioButton Content="Reject"
                                                     Value="Reject" FontSize="Micro"/>
                                    </StackLayout>

                                    
                                </Grid>
                            </DataTemplate>
                        </xct:Expander.ContentTemplate>
                    </xct:Expander>
                </yummy:PancakeView>
             </DataTemplate>
         </CollectionView.ItemTemplate>
         </CollectionView>
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1 回答 1

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如果您的目标是 iOS，那么很可能是 XamarinCommunityToolkit 错误，您可以在以下位置关注它的状态/进度：

CollectionView 中的扩展器在 iOS #608 上无法正常工作

在 CollectionView #572 中加载时，Expander 无法正确展开和折叠

于 2021-02-02T19:37:02.727 回答