如何通過雙擊 WPF 來更改列表視圖項中的文本框啟用

Question

我正在嘗試通過雙擊項目來編輯列表視圖項目內容（文本框），並且我希望能夠編輯列表視圖項目文本框。

這是我的 xaml

<ListView.View>
            <GridView >
                <GridView.Columns>
                    <GridViewColumn Header="ID" Width="50" DisplayMemberBinding="{Binding ID}"/>
                    <GridViewColumn Header="scanned Text" Width="380">
                        <GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <TextBox Tag="{Binding Index}" Name="itemTextBox" Text="{Binding scannedText}" BorderBrush="{x:Null}" BorderThickness="0" FontSize="16" Focusable="False">
                                </TextBox>
                            </DataTemplate>
                        </GridViewColumn.CellTemplate>
                    </GridViewColumn>
                </GridView.Columns>
            </GridView>
        </ListView.View>
        <ListView.ItemContainerStyle>
            <Style TargetType="ListViewItem">
                <EventSetter Event="MouseDoubleClick" Handler="listViewItem_MouseDoubleClick" />
            </Style>
        </ListView.ItemContainerStyle>

Answer 1

所以我猜你還沒有真正嘗試過？ 如果您有，請也發布您的嘗試！

將 MouseDoubleClick 事件添加到您的文本框並在您的代碼中嘗試這樣的操作：

        private void TextBox_MouseDoubleClick(object sender, MouseButtonEventArgs e)
        {
            sender.Focusable = true;
            sender.Focus();
            //These two lines prevent the Cursor to change and the border showing after clicking once and make them appear/change after the double click
            sender.Cursor = Cursors.IBeam;
            sender.BorderThickness = new Thickness(1);
        }

我想你想在編輯后取消焦點，所以我建議使用以下代碼添加一個 LostFocus 事件：

        private void TextBox_LostFocus(object sender, RoutedEventArgs e)
        {
            Keyboard.ClearFocus();
            sender.Focusable = false;
            //These two lines prevent the Cursor to change and the border showing after clicking once and make them appear/change after the double click
            sender.Cursor = Cursors.Arrow;
            sender.BorderThickness = new Thickness(0);
        }

我希望這適用於 ListView

~貝爾迪