Question

我已经和这个xaml战斗了好几个小时了。应该很简单。我有一个通用的 WindowDialog （Billing.WindowDialog），其中 ContentPresenter 显示UserControl（NovaLibraries.Views.DxLibraryView）。 UserControl 本身有一个 ListView （在行= 0），后面是其他控件。

好消息：当WindowDialog呈现UserControl时，它会正确显示UserControl到显示屏的大小并最小化 WindowDialog（或调整它的大小）确实正确地改变了UserControl的大小并正确缩小了ListView。

问题（坏消息）：当过滤器放在ListView中包含的列表上时，ListView的项目较少，由于缺少项目而缩小，整个UserControl缩小。当列表很大而一百个项目然后缩小到4个项目时，这会变得非常分散注意力，因为这会导致整个UserControl缩小。

我需要什么：我最初需要UserControl使用所有可用空间最大化到使用ListView的屏幕大小。 UserControl将根据其父WindowDialog缩小（或放大） - 而不是根据ListView的内容。

感谢您阅读所有这些内容。非常感谢任何帮助。

WindowDialog：

<Window x:Class="Billing.WindowDialog"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        WindowStyle="SingleBorderWindow" 
        WindowStartupLocation="CenterOwner"
        Title="{Binding DialogTitle}">

        <ContentPresenter x:Name="DialogPresenter" Content="{Binding .}" HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Window>


using System.Windows;
using Client;

namespace Billing
{
    /// <summary>
    /// Interaction logic for WindowDialog.xaml
    /// </summary>
    public partial class WindowDialog : Window, IWindowDialog
    {
        public WindowDialog()
        {
            InitializeComponent();
        }
    }
}

显示UserControl的C＃代码：

  var dialog = new WindowDialog
   {
        Title = "ICD Library",
        ShowInTaskbar = false,                     
        Topmost = false                            
   };


   DialogService dialogService = new DialogService();
   dialogService.ShowDialog(
               dialog,
               new DxLibraryViewModel(null, null)
               );




// Opens a window and returns only when the newly opened window is closed.

        public void ShowDialog<TDialogViewModel>(IWindowDialog windowdialog, TDialogViewModel viewModel, 
            Action<TDialogViewModel> onDialogClose, bool sizetocontent = false)
        {
            // Assign the viewmodel as the DataContext of the WindowDialog.xaml
            windowdialog.DataContext = viewModel;

            // Set window size.
            SizeToContent SizeToContent = SizeToContent.Manual;
            WindowState WindowState = WindowState.Maximized;
            if (sizetocontent)
            {
                SizeToContent = SizeToContent.WidthAndHeight;
                WindowState = WindowState.Normal;
            }
            // The WindowDialog is the mainwindow.
            (windowdialog as WindowDialog).WindowState = WindowState;
            (windowdialog as WindowDialog).SizeToContent = SizeToContent;



            // Open MainWindow in modal fashion (Returns only when the newly opened window is closed).
            // Implicict DataTemplate in App.XAML used to display usercontrol.
            windowdialog.ShowDialog();
        }

        public void ShowDialog<TDialogViewModel>(IWindowDialog mainwindow, TDialogViewModel viewModel, bool sizetocontent = false)
        {
            ShowDialog(mainwindow, viewModel, null, sizetocontent);
        }

UserControl是：

<UserControl x:Class="NovaLibraries.Views.DxLibraryView"
             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" 
             xmlns:c="clr-namespace:NovaLibraries.Converters"
             mc:Ignorable="d" 
             BorderBrush="Black" BorderThickness="2" Background="Beige" >

    <UserControl.Resources>
        <!--Display a checkmark without the surrounding box as an image-->
        <c:CheckMarkConverter x:Key="mycheckmark" />

        <Style x:Key="ItemContStyle" TargetType="{x:Type ListViewItem}">
            <Style.Resources>
              <!--ORANGE-->
                <LinearGradientBrush x:Key="OrangeBrush" StartPoint="0.5,0" EndPoint="0.5,1" >
                    <GradientStop Offset="0.1" Color="#AA00CC00" />
                    <GradientStop Offset="0.8" Color="Orange" />
                </LinearGradientBrush>
            </Style.Resources>

            <Style.Triggers>
                <DataTrigger Binding="{Binding Path=chronic}"  Value="true">
                    <Setter Property="Background" Value="{StaticResource OrangeBrush}" />
                </DataTrigger>
            </Style.Triggers>
        </Style>
    </UserControl.Resources>


    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="100*" />
            <RowDefinition Height="275" />
        </Grid.RowDefinitions>

        <ListView Grid.Row="0" 
                  ItemContainerStyle="{StaticResource ItemContStyle}" 
                  ItemsSource="{Binding DxView.View}" 
                  SelectedItem="{Binding SelectedItem}" 
                  IsEnabled="{Binding CanSelect}"  
                  Width="781" >

            <ListView.View>
                <GridView>
                    <GridViewColumn DisplayMemberBinding="{Binding Path=rank}"    Header="Rank" Width="50" />
                    <GridViewColumn DisplayMemberBinding="{Binding Path=code}"     Header="ICD-9"      Width="50" />
                    <GridViewColumn DisplayMemberBinding="{Binding Path=cdesc}"    Header="Diagnosis"  Width="550" />

                </GridView>
            </ListView.View>
        </ListView>


    </Grid>
</UserControl>

Answer 1

删除

HorizontalAlignment="Center" VerticalAlignment="Center"

来自ContentPresenter的

，ListView及其父UserControl按预期运行。

如何在UserControl和父WindowDialog

1 个答案: