xaml - ListView set Column datatemplate(celltemplateselector) 取决于来自另一列的数据

Question

我有一个 ListView，您可以在下面的代码中看到：

<ListView Grid.Row="2" MinHeight="75" x:Name="_lstvSearch" ItemsSource="{Binding Search.SearchExpressions}">
            <ListView.View>
                <GridView>
                    <GridViewColumn Header="Field name">
                        <GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <ComboBox IsEditable="True" ItemsSource="{Binding DataContext.Fields, 
                                   RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type ListView}}}"
                                          SelectedItem="{Binding Field, Mode=TwoWay}"
                                          DisplayMemberPath="Field.UserFriendlyFieldName"/>
                            </DataTemplate>
                        </GridViewColumn.CellTemplate>
                    </GridViewColumn>
                    <GridViewColumn Header="Operator">
                        <GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <ComboBox IsEditable="True" ItemsSource="{Binding Field.Operators}"
                                          SelectedItem="{Binding Operator, Mode=TwoWay}"
                                          DisplayMemberPath="Operator"/>
                            </DataTemplate>
                        </GridViewColumn.CellTemplate>
                    </GridViewColumn>
                    <GridViewColumn Header="Value">
                        <GridViewColumn.CellTemplateSelector>
                            <vm:FieldValueTemplateSelector>
                                <vm:FieldValueTemplateSelector.Alpha>
                                    <DataTemplate>
                                        <TextBox Text="{Binding Value}"/>
                                    </DataTemplate>
                                </vm:FieldValueTemplateSelector.Alpha>
                                <vm:FieldValueTemplateSelector.Numeric>
                                    <DataTemplate>
                                        <igEditors:XamNumericEditor Value="{Binding Value}" />
                                    </DataTemplate>
                                </vm:FieldValueTemplateSelector.Numeric>
                                <vm:FieldValueTemplateSelector.CheckBox>
                                    <DataTemplate>
                                        <CheckBox IsChecked="{Binding Value}"/>
                                    </DataTemplate>
                                </vm:FieldValueTemplateSelector.CheckBox>
                                <vm:FieldValueTemplateSelector.DateTime>
                                    <DataTemplate>
                                        <igEditors:XamDateTimeEditor Value="{Binding Value}" />
                                    </DataTemplate>
                                </vm:FieldValueTemplateSelector.DateTime>
                                <vm:FieldValueTemplateSelector.DropDownItem>
                                    <DataTemplate>
                                        <ComboBox ItemsSource="{Binding Value}"/>
                                    </DataTemplate>
                                </vm:FieldValueTemplateSelector.DropDownItem>
                                <vm:FieldValueTemplateSelector.Generic>
                                    <DataTemplate>
                                        <TextBox Text="{Binding Value}"/>
                                    </DataTemplate>
                                </vm:FieldValueTemplateSelector.Generic>
                            </vm:FieldValueTemplateSelector>
                        </GridViewColumn.CellTemplateSelector>
                    </GridViewColumn>
                    <GridViewColumn Header="AND/OR">
                        <GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <ComboBox IsEditable="True" ItemsSource="{Binding DataContext.ConditionLinks, 
                                    RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type ListView}}}"
                                          SelectedItem="{Binding BooleanOperator, Mode=TwoWay}"/>
                            </DataTemplate>
                        </GridViewColumn.CellTemplate>
                    </GridViewColumn>
                    <GridViewColumn Header="Remove">
                        <GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <Button Content="Remove" IsEnabled="{Binding IsValid}" Tag="{Binding}" Click="Button_Click"/>
                            </DataTemplate>
                        </GridViewColumn.CellTemplate>
                    </GridViewColumn>
                </GridView>
            </ListView.View>
        </ListView>

我的问题是我不想根据从第一列字段名称中的选择来更改值列中的 CellTemplate，但是我该如何触发它。

选择字段后，我的模型 cald FieldDatatype 中有一个属性，我从中确定第一列中选​​择的字段的类型。正如您在Value列中看到的那样，我设置了一个 CellTemplateSelector(FieldValueTemplateSelector) ，但是这个设置只有一次数据模板，并且当我从第一列中选​​择其他字段时不会刷新。