Question

我正在实现一个功能，用于按列值对ListView中的项目进行排序。

这是我的XAML代码的一部分：

<ListView x:Name="ListView4" SelectedItem="{Binding SelectedRepere}" ItemsSource="{Binding ListeDesReperes}"  Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="4" MouseDoubleClick="ListView_MouseDoubleClick" GridViewColumnHeader.Click="GridViewColumnHeaderClickedHandler" ContextMenuOpening="ListView4_ContextMenuOpening" SelectionChanged="ListView4_SelectionChanged" Visibility="{Binding Grid4Visible, Converter={StaticResource BoolToVisConverter}}" >
                <ListView.ContextMenu>
                    <ContextMenu x:Name="Context4">
                        <MenuItem x:Name="Context4MakeLonger" Header="{x:Static p:Resources.MakeLonger}" Click="Make_Longer"/>
                        <MenuItem x:Name="Context4Search" Header="{x:Static p:Resources.Search}" Click="Search_Detail"/>
                    </ContextMenu>
                </ListView.ContextMenu>
                <ListView.View>

                    <GridView AllowsColumnReorder="true" x:Name="GridView4">
                        <GridViewColumn DisplayMemberBinding="{Binding Path=ID}" Header="ID" Width="50"/>
                        <GridViewColumn DisplayMemberBinding= "{Binding Path=Name}" Header="{x:Static p:Resources.Nom}" Width="200">

                        </GridViewColumn>
                        <GridViewColumn Header="{x:Static p:Resources.QuantiteUnit}" Width="100">
                            <GridViewColumn.CellTemplate>
                                <DataTemplate>
                                    <Grid>
                                        <TextBlock Text="{Binding Path=Quantite}" TextAlignment="Right"/>
                                    </Grid>
                                </DataTemplate>
                            </GridViewColumn.CellTemplate>
                        </GridViewColumn>
                        <GridViewColumn Header="{x:Static p:Resources.QuantiteTot}" Width="100">
                            <GridViewColumn.CellTemplate>
                                <DataTemplate>
                                    <Grid>
                                        <TextBlock Text="{Binding Path=TotalQuantity}" TextAlignment="Right"/>
                                    </Grid>
                                </DataTemplate>
                            </GridViewColumn.CellTemplate>
                        </GridViewColumn>
                        <GridViewColumn DisplayMemberBinding="{Binding Path=Profil}" Header="{x:Static p:Resources.Profil}" Width="100"/>
                        <GridViewColumn DisplayMemberBinding="{Binding Path=Priorite}" Header="{x:Static p:Resources.Priorite}" Width="100"/>
                        <GridViewColumn DisplayMemberBinding="{Binding Path=Matiere}" Header="{x:Static p:Resources.Matiere}" Width="100"/>
                        <GridViewColumn DisplayMemberBinding="{Binding Path=GroupeProfil}" Header="{x:Static p:Resources.GroupeProfil}" Width="100"/>
                        <GridViewColumn DisplayMemberBinding="{Binding Path=Longueur}" Header="{x:Static p:Resources.Longueur}" Width="100">
                            <GridViewColumn.CellTemplate>
                                <DataTemplate>
                                    <Grid>
                                        <TextBlock Text="{Binding Path=Longueur, StringFormat={}{0:#000}}" TextAlignment="Right"/>
                                    </Grid>
                                </DataTemplate>
                            </GridViewColumn.CellTemplate>
                        </GridViewColumn>

                        <GridViewColumn Header="{x:Static p:Resources.Weight}" Width="70">
                            <GridViewColumn.CellTemplate>
                                <DataTemplate>
                                    <Grid>
                                        <TextBlock Text="{Binding Path=Poids, StringFormat=N2}" TextAlignment="Right"/>
                                    </Grid>
                                </DataTemplate>
                            </GridViewColumn.CellTemplate>
                        </GridViewColumn>
                        <GridViewColumn Width="140" Header="{x:Static p:Resources.Avancement}">
                            <GridViewColumn.CellTemplate>
                                <DataTemplate>
                                    <Rectangle Name="PART_Track"  Height="20" Stroke="black" StrokeThickness="1" Fill="{Binding RectangleProgression}" Tag="{Binding Name}" MouseMove="mouseOverProgression">
                                        <Rectangle.ToolTip>
                                            <StackPanel>
                                                <Grid>
                                                    <Grid.ColumnDefinitions>
                                                        <ColumnDefinition/>
                                                        <ColumnDefinition Width="10"/>
                                                        <ColumnDefinition/>
                                                    </Grid.ColumnDefinitions>
                                                    <TextBlock Grid.Column="0" Text="{Binding Path=ToolTipProgressionTb1}" TextAlignment="Left" HorizontalAlignment="Left"/>
                                                    <TextBlock Grid.Column="2" Text="{Binding Path=ToolTipProgressionTb2}" TextAlignment="Right" HorizontalAlignment="Right"/>

                                                </Grid>
                                            </StackPanel>
                                        </Rectangle.ToolTip>
                                    </Rectangle>
                                </DataTemplate>
                            </GridViewColumn.CellTemplate>
                        </GridViewColumn>
                    </GridView>
                </ListView.View>
            </ListView>

当我想采用绑定列的值时，我使用以下公式：

string header = ((System.Windows.Data.Binding)headerClicked.Column.DisplayMemberBinding).Path.Path;

此代码与我在GridViewColumn中定义绑定权限（即：Profil，Priorite ...）

一样有效。

问题是，当我在列中有一些CellTemplate和一个TextBox时，我想拿DisplayMemberBinding中的TextBox。

对于“ Longueur”列，我试图在GridViewColumn和TextBox中都设置绑定，它解决了问题，但我认为这不是一个很好的解决方案。

我该怎么做：

header = ((System.Windows.Data.Binding)headerClicked.Column.CellTemplate.TextBox.DisplayMemberBinding).Path.Path;

Answer 1

这是从TextBlock中检索绑定路径的方法：

DataTemplate cellTemplate = headerClicked.Column.CellTemplate;
Grid grid = cellTemplate.LoadContent() as Grid;
TextBlock textBlock = grid.Children.OfType<TextBlock>().FirstOrDefault();
string bindingPath = BindingOperations.GetBinding(textBlock, TextBlock.TextProperty).Path.Path;

WPF在GridView列中获取文本框的绑定值

1 个答案: