Question

我试图更改按钮点击事件中特定网格列和行的内容。我能够得到它的行和列，但我不能让它消失。

我在CreateLabel按钮上创建了新的UserControl，并将其添加到特定的Grid列和行。

这是XAML代码：

<Window x:Class="DHL.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:local="clr-namespace:DHL"
    mc:Ignorable="d"
    Title="DHL Parcel" Height="500" Width="1000">
<Window.Resources>
    <Style x:Key="RoundedButton" TargetType="{x:Type Button}">
        <Setter Property="Background" Value="Transparent"/>
        <Setter Property="HorizontalContentAlignment" Value="Center"/>
        <Setter Property="BorderBrush" Value="Transparent" />
        <Setter Property="Foreground" Value="#FFCB1F1F"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="Button">
                    <Border CornerRadius="5" Background="{TemplateBinding Background}" BorderThickness="1">
                        <ContentPresenter>

                        </ContentPresenter>
                    </Border>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
        <Style.Triggers>
            <Trigger Property="IsMouseOver" Value="True">
                <Setter Property="Button.Effect">
                    <Setter.Value>
                        <DropShadowEffect Color="Black" Direction="320" ShadowDepth="3" BlurRadius="5" Opacity="0.5" />
                    </Setter.Value>
                </Setter>
            </Trigger>
        </Style.Triggers>
    </Style>
</Window.Resources>
<Grid Name="gridzik">
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="150"></ColumnDefinition>
        <ColumnDefinition Width="*"></ColumnDefinition>
    </Grid.ColumnDefinitions>
    <Grid Grid.Column="0" VerticalAlignment="Center">
        <Grid.RowDefinitions>
            <RowDefinition />
            <RowDefinition />
        </Grid.RowDefinitions>
        <Grid Grid.Row="0" Margin="0,0,0,5">
            <Button Style="{StaticResource RoundedButton}" Name="CreateLabel"
                Content="Crate consingment" HorizontalAlignment="Center"
                HorizontalContentAlignment="Center"
                TextBlock.TextAlignment="Center"
                Width="130" Click="CreateLabel_Click" />
        </Grid>
        <Grid Grid.Row="1" Margin="0,0,0,5">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="19*"/>
                <ColumnDefinition Width="11*"/>
            </Grid.ColumnDefinitions>
            <Button Style="{StaticResource RoundedButton}" Name="CheckLabels"
                HorizontalAlignment="Center"
                HorizontalContentAlignment="Center" Content="Check consingment"
                TextBlock.TextAlignment="Center"
                Width="130" Grid.ColumnSpan="2" Margin="10,0" Click="CheckLabels_Click" />
        </Grid>


    </Grid>
    <Grid Grid.Column="1" VerticalAlignment="Center">
        <Grid.RowDefinitions>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <Grid Grid.Row="0">

        </Grid>
    </Grid>
</Grid>

这里有代码：

private void CreateLabel_Click(object sender, RoutedEventArgs e)
    {
        CreateLabel cl = new CreateLabel();
        gridzik.Children.Add(cl);
        Grid.SetColumn(cl, 1);
        Grid.SetRow(cl, 0);
        cl.dok_idm_textBox.Focus();
    }

我尝试使用CheckLabels按钮时要清除Grid Grid.Column="1"内容。以下是我尝试这样做的方法：

private void CheckLabels_Click(object sender, RoutedEventArgs e)
    {
        foreach (UIElement item in gridzik.Children)
        {
            if (Grid.GetColumn(item) == 1 && Grid.GetRow(item) == 0)
            {
                gridzik.Children.Remove(item);
                break;
            }
        }

        Label labelek = new Label();
        labelek.Content = "JHEEK";
        gridzik.Children.Add(labelek);
        Grid.SetColumn(labelek, 1);
        Grid.SetRow(labelek, 0);
    }

我发现它已被删除，但它无法消除，我不知道为什么。有什么建议吗？

Answer 1

如果您不需要动态内容，则可以使用2个网格并相应地设置其可见性属性

private void CheckLabels_Click(object sender, RoutedEventArgs e)
{
     grid1.Visibility = Visibility.Visible;
     grid2.Visibility = Visibility.Collapsed;
}

清除特定Grid列和行的内容

1 个答案: