我最近开始研究WPF。目前我正面临一个问题。 我有一个窗口，里面有一个用户控件，包含DataGrid，Combobox，按钮和弹出窗口。 我正在使用删除按钮将DataGrid与Notes列表（字符串）绑定。因此，当我们单击该按钮时，弹出窗口将打开，弹出窗口将显示带有是或否按钮的确认消息。 当我单击是按钮时，我将删除注释并仅重新绑定DataGrid.And之后，当我单击删除按钮时弹出窗口没有打开。
如果我没有重新绑定DataGrid，那么PopUp正在打开但是问题被删除注意仍然存在于DataGrid中但是从数据库中删除了，这会混淆注释是否被删除。这就是我重新绑定的原因。
但Rebinding导致无法打开Popup的问题。
请帮助我如何完成这项工作。
我的弹出窗口看起来像这样：
<Popup x:Name="Popupdelete"
AllowsTransparency="True"
HorizontalOffset="-10"
VerticalOffset="10"
Placement="Mouse"
StaysOpen="False"
IsOpen="{Binding IsDeletePopUpOpen}">
<Grid x:Name="LayoutRoot" Background="Transparent" Height="105">
<!-- My confirmation message and Yes No button goes Here-->
</Grid>
IsDeletePopUpOpen在ViewModel中设置。
谢谢＆amp;问候， 喜悦
答案 0 :(得分：0)
代码在这里：
＆lt; - 删除弹出窗口 - ＆gt;
<Popup x:Name="Popupdelete"
AllowsTransparency="True"
HorizontalOffset="-10"
VerticalOffset="10"
Placement="Mouse"
StaysOpen="False"
IsOpen="{Binding IsDeletePopUpOpen}">
<Grid x:Name="LayoutRoot" Background="Transparent" Height="105">
<Border BorderBrush="#E2E2E2" BorderThickness="6" Background="White">
<Grid>
<TextBlock TextWrapping="Wrap" Margin="10,10,10,50" Foreground="#454545" FontWeight="SemiBold" HorizontalAlignment="Center" VerticalAlignment="Center" Height="30" Width="Auto" Text="Are you sure you want" />
<TextBlock TextWrapping="Wrap" Margin="50,15,50,25" Foreground="#454545" FontWeight="SemiBold" HorizontalAlignment="Center" VerticalAlignment="Center" Height="30" Width="Auto" Text="to delete?"/>
<Button Content="Yes" Margin="35,50,80,0" Height="40" HorizontalAlignment="Center" VerticalAlignment="Center" Command="{Binding DeleteYesCmd}" CommandParameter="{Binding SelectedItem, ElementName=lstCustomer}" Style="{StaticResource SaveButtonStyle}" />
<TextBlock Text="or" Margin="75,50,60,15" HorizontalAlignment="Center" VerticalAlignment="Center" Foreground="#919191" FontSize="10" />
<TextBlock Margin="95,48,35,12" HorizontalAlignment="Center" VerticalAlignment="Center" ><Hyperlink Command="{Binding DeleteNoCmd}"><Run Text="No" FontWeight="Bold" FontSize="12"/></Hyperlink></TextBlock>
</Grid>
</Border>
</Grid>
</Popup>
＆lt; - 删除图像按钮的便笺列表 - ＆gt;
<Border Background="#F0F0F0" CornerRadius="0" Visibility="{Binding NotesListViewVisibility}">
<ScrollViewer x:Name="scrollMe" CanContentScroll="True" Height="80" >
<Border Background="White" CornerRadius="5,0,0,5">
<Grid Background="White" Margin="5">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="101*"/>
<ColumnDefinition Width="35*"/>
</Grid.ColumnDefinitions>
<ListView x:Name="lstCustomer" BorderBrush="Transparent" BorderThickness="0" ScrollViewer.CanContentScroll="True"
ScrollViewer.HorizontalScrollBarVisibility="Disabled" RequestBringIntoView="RemoveScrollViewFocus"
ItemsSource="{Binding OutcomeNotesView , Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" ScrollViewer.VerticalScrollBarVisibility="Disabled" SelectionMode="Single"
Background="#FFFFFF" ItemContainerStyle="{StaticResource ListviewItemContainerStyle}" Grid.ColumnSpan="2">
<ListView.ItemsPanel>
<ItemsPanelTemplate>
<UC:NoteStackPanel/>
</ItemsPanelTemplate>
</ListView.ItemsPanel>
<ListView.ItemTemplate>
<DataTemplate>
<StackPanel>
<Border BorderBrush="#E6E6E6" BorderThickness="0,0,0,1"
Width="{Binding ActualWidth, Converter={StaticResource widthconv}, ElementName=lstCustomer}">
<StackPanel x:Name="spNotes" Orientation="Vertical" Margin="0,10,0,10" >
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<StackPanel Grid.Row="0" Grid.Column="0" HorizontalAlignment="Left" Orientation="Horizontal">
<Button x:Name="btnPrimaryOfficer" MouseEnter="SetEmployeePopUpPlacement" Style="{StaticResource AuthButton}"
CommandParameter="{Binding}" Command="{Binding DataContext.OutcomeEmployeePopUp, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ListView}}}">
<Button.Visibility>
<MultiBinding Converter="{StaticResource ActiveInactiveConv}" ConverterParameter="Hyper">
<Binding Path="EmployeeInfo.ActiveStatusCode"/>
<Binding Path="EmployeeInfo.Id"/>
</MultiBinding>
</Button.Visibility>
<Button.InputBindings>
<MouseBinding Gesture="LeftDoubleClick" CommandParameter="{Binding}"
Command="{Binding DataContext.OutcomeEmployeePopUp, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ListView}}}"/>
</Button.InputBindings>
<StackPanel Orientation="Horizontal">
<Image Source="{StaticResource imgUser}" Width="15" Height="15" HorizontalAlignment="Left" />
<TextBlock Text="{Binding EmployeeInfo.Name}" Style="{StaticResource AuthEditProfile}" FontFamily="{StaticResource FontBold}" FontSize="12" Margin="2,0,0,0" />
</StackPanel>
</Button>
<StackPanel Orientation="Horizontal" >
<StackPanel.Visibility>
<MultiBinding Converter="{StaticResource ActiveInactiveConv}" ConverterParameter="Normal">
<Binding Path="EmployeeInfo.ActiveStatusCode"/>
<Binding Path="EmployeeInfo.Id"/>
</MultiBinding>
</StackPanel.Visibility>
<!--Visibility="{Binding PrimaryOfficerActiveStatusCode,Converter={StaticResource ActiveInactiveConv},ConverterParameter=Normal}">-->
<Image Source="{StaticResource imgUserBlack}" Width="15" Height="15" HorizontalAlignment="Left" />
<TextBox Text="{Binding EmployeeInfo.Name}" Style="{StaticResource TextWithoutHyperlink}" Margin="2,0,0,0" />
</StackPanel>
<TextBlock Background="Transparent" Text="on"
FontFamily="{StaticResource FontMedium}" FontSize="12" Foreground="#919191" Margin="4,0,2,0"
VerticalAlignment="Bottom" HorizontalAlignment="Center"/>
<TextBox Text="{Binding AddedDate, StringFormat=\{0:MM/dd/yy\}}" Foreground="#454545" VerticalAlignment="Bottom" MaxLength="{Binding Length}"
HorizontalAlignment="Center" Margin="2,0,0,0" Style="{StaticResource ContentText}"/>
</StackPanel>
<StackPanel Grid.Column="1" Grid.Row="0" HorizontalAlignment="Right" Visibility="{Binding DataContext.DeleteNoteVisibility, ElementName=OutcomeNotesView}" Orientation="Horizontal">
<StackPanel Orientation="Horizontal" >
<Button x:Name="btnDelete" Width="Auto" MouseEnter="btnDelete_MouseEnter" MouseLeave="btnDelete_MouseLeave"
CommandParameter="{Binding}"
Command="{Binding DataContext.LoadDeletePopUp, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ListView}}}"
Style="{StaticResource AuthButton}">
<StackPanel Orientation="Horizontal">
<Image Source="{StaticResource imgdeleteicon}" Style="{StaticResource AuthImage}"/>
</StackPanel>
</Button>
</StackPanel>
</StackPanel>
</Grid>
<StackPanel >
<TextBox Text="{Binding Note}" Foreground="#454545" TextWrapping="Wrap" Height="Auto"
Width="{Binding ActualWidth, Converter={StaticResource widthconv}, ElementName=lstCustomer}"
Style="{StaticResource ContentText}" FontFamily="{StaticResource FontNormal}" FontSize="12" Padding="0"/>
<TextBlock x:Name="txtSavingNoteId" Visibility="Collapsed" Text="{Binding NoteId}" />
</StackPanel>
</StackPanel>
</Border>
</StackPanel>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</Grid>
</Border>
</ScrollViewer>
</Border>
</StackPanel>
public List<ActivityNotesDto> OutcomeNotesView
{
get
{
return outcomeNotesView;
}
set
{
outcomeNotesView = value;
OnPropertyChanged("OutcomeNotesView");
}
}
DeleteActivityNote（deletingNoteDetails）;
OutcomeNotesView = GetActivityNotesList（）;
如果我遗失了某些内容，请告诉我。自从我第一次点击按钮后，“删除”弹出窗口正在打开并且正在删除，但下次单击“删除”图像时，它没有打开弹出窗口。
谢谢＆amp;问候， 喜悦