我在网格中设置列宽有问题。该网格是在按钮内自动生成的，我不知道它的实际宽度和窗口的宽度。我已经在其中定义了两列，一列具有静态宽度，而第二列我想要设置为所有左侧位置。问题是我正在运行程序时生成所有这些网格和列，所以我无法使用任何其他对象的width属性，因为一切都是double.NaN。
我想要做的是生成一个按钮网格，其中包含两列，一个静态宽度，第二个宽度可以像picture一样随时间变化（红色文本只是注释）。
我用于生成该网格的代码。有问题的列是width属性设置为“???”的列现在：
Button GridButton = new Button()
{
HorizontalAlignment = HorizontalAlignment.Stretch,
Margin = new Thickness { Left = 10, Right = 5, Top = 10, Bottom = 10 },
Height = 70,
/*HorizontalAlignment = HorizontalAlignment.Center,
HorizontalContentAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Top,
VerticalContentAlignment = VerticalAlignment.Center,
*/
Tag = GridButtonTag,
Background = new SolidColorBrush(Colors.White),
Padding = new Thickness { Left = 0, Right = 0, Bottom = 0, Top = 0 }
};
WholeGrid.Children.Add(GridButton);
Grid ButtonContentGrid = new Grid()
{
Padding = new Thickness { Left = 0, Right = 0, Top = 0, Bottom = 0 },
};
double ColumnWidth = GridButton.Width - 80;
ColumnDefinition Column1 = new ColumnDefinition();
ColumnDefinition Column2 = new ColumnDefinition();
Column1.Width = new GridLength(????);
Column2.Width = new GridLength(90);
ButtonContentGrid.ColumnDefinitions.Add(Column1);
ButtonContentGrid.ColumnDefinitions.Add(Column2);
TextBlock Questions = new TextBlock()
{
Margin = new Thickness { Right = 0, Top = 0, Bottom = 0 },
Width = 90,
VerticalAlignment = VerticalAlignment.Center,
HorizontalAlignment = HorizontalAlignment.Right,
FontSize = 45,
Text = QuestionsAmount,
FontWeight = FontWeights.Bold,
TextAlignment = TextAlignment.Right
};
Grid QuestionsGrid = new Grid()
{
Width = 90,
VerticalAlignment = VerticalAlignment.Center,
HorizontalAlignment = HorizontalAlignment.Center
};
QuestionsGrid.Children.Add(Questions);
Grid.SetColumn(QuestionsGrid, 1);
ButtonContentGrid.Children.Add(QuestionsGrid);
Grid TwoTexts = new Grid()
{
Height = 70,
VerticalAlignment = VerticalAlignment.Center,
HorizontalAlignment = HorizontalAlignment.Stretch,
Width = GridButton.Width - 80,
Padding = new Thickness { Left = 0, Right = 0, Top = 0, Bottom = 0 }
};
RowDefinition TextRow1 = new RowDefinition();
RowDefinition TextRow2 = new RowDefinition();
TextRow1.Height = new GridLength(50);
TextRow2.Height = new GridLength(20);
TwoTexts.RowDefinitions.Add(TextRow1);
TwoTexts.RowDefinitions.Add(TextRow2);
TextBlock NameBox = new TextBlock()
{
Margin = new Thickness { Left = 0, Top = 0},
VerticalAlignment = VerticalAlignment.Top,
HorizontalAlignment = HorizontalAlignment.Left,
FontSize = 35,
Text = Name,
FontWeight = FontWeights.Bold
};
TextBlock DescriptionBox = new TextBlock()
{
Margin = new Thickness { Left = 0, Bottom = -10 },
VerticalAlignment = VerticalAlignment.Bottom,
HorizontalAlignment = HorizontalAlignment.Left,
FontSize = 15,
Text = Description
};
Grid.SetRow(NameBox, 0);
TwoTexts.Children.Add(NameBox);
Grid.SetColumn(DescriptionBox, 1);
TwoTexts.Children.Add(DescriptionBox);
Grid.SetColumn(TwoTexts, 0);
ButtonContentGrid.Children.Add(TwoTexts);
GridButton.Content = ButtonContentGrid;
备用选项 - ListView（仍然是同样的问题，而且Place With WidthValue =“????”是我不知道如何设置的那个）：
<ListView Name="FileListView" Margin="0,0,0,0" Padding="10,10,10,10">
<ListView.ItemTemplate>
<DataTemplate>
<Grid Height="90" Margin="0,0,0,0" HorizontalAlignment="Stretch">
<Grid.RowDefinitions>
<RowDefinition Height="2"/>
<RowDefinition Height="92"/>
</Grid.RowDefinitions>
<Grid Grid.Row="0"
BorderThickness="0,2"
CornerRadius="2"
BorderBrush="Black"
Margin="40,0"
VerticalAlignment="Top"
HorizontalAlignment="Stretch"
/>
<Grid Grid.Row="1" Height="90" Margin="0" Padding="0">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="65"/>
</Grid.ColumnDefinitions>
<Grid Name ="Texts" Grid.Column="0" HorizontalAlignment="Stretch" Margin="10,10">
<Button HorizontalAlignment ="Stretch" Margin ="0" Height = "70" Tag = "{Binding GridButtonTag}" Background ="#00FFFFFF" Padding = "0">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition Width="90"/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="1" FontSize = "45" FontWeight="Bold" TextAlignment="Right" Text="{Binding QuestionsAmount}" />
<Grid Grid.Column="0" Width="????">
<Grid.RowDefinitions>
<RowDefinition Height="40"/>
<RowDefinition Height="30"/>
</Grid.RowDefinitions>
<TextBlock Grid.Row="0" FontSize = "35" FontWeight="Bold" TextAlignment="Left" Text="{Binding Name}" VerticalAlignment="Center"/>
<TextBlock Grid.Row="1" FontSize = "17" TextAlignment="Left" Text="{Binding Description}" VerticalAlignment="Center"/>
</Grid>
</Grid>
</Button>
</Grid>
<Grid Grid.Column="1">
<Grid Name="Buttons" Width ="65" HorizontalAlignment="Stretch" Padding = "10,5,10,10" Height = "90" Margin = "0">
<Grid.RowDefinitions>
<RowDefinition Height="50"/>
<RowDefinition Height="20"/>
</Grid.RowDefinitions>
<Button Grid.Row="0" Tag = "{Binding PlayButtonTag}" Margin = "0" Height = "50" Width = "50" HorizontalAlignment = "Center" HorizontalContentAlignment = "Center" VerticalAlignment = "Top" VerticalContentAlignment = "Center" Background = "#00FFFFFF" Padding = "0">
<Image Width="50" Height="50" Source="ms-appx:///Assets/Images/PlayIcon.png" HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Button>
<Grid Grid.Row="1" Margin="0,0,0,0" Padding="0,0,0,0" Width="50" Height="20">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="25"/>
<ColumnDefinition Width="20"/>
</Grid.ColumnDefinitions>
<Button Grid.Column="0" Tag = "{Binding EditButtonTag}" Margin = "0" Height = "20" Width = "20" HorizontalAlignment = "Left" HorizontalContentAlignment = "Center" VerticalAlignment = "Top" VerticalContentAlignment = "Center" Background = "#00FFFFFF" Padding = "0">
<Image Width="20" Height="20" Source="ms-appx:///Assets/Images/EditIcon.png" HorizontalAlignment="Center" VerticalAlignment="Center"
</Button>
<Button Grid.Column="1" Margin = "0" Tag = "{Binding DeleteButtonTag}" Height = "20" Width = "20" HorizontalAlignment = "Right" HorizontalContentAlignment = "Center" VerticalAlignment = "Top" VerticalContentAlignment = "Center" Background = "#00FFFFFF" Padding = "0">
<Image Width="20" Height="20" Source="ms-appx:///Assets/Images/DeleteIcon.png" HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Button>
</Grid>
</Grid>
</Grid>
</Grid>
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
问题是我应该在该代码中更改或写入什么才能获得正确的结果？
提前致谢。
答案 0 :(得分：0)
我认为您不必设置您尝试设置的Width。在这种情况下的问题应该是DataTemplate的内容根本没有延伸。
您必须将以下行添加到ListView以使内容延伸：
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch"/>
</Style>
</ListView.ItemContainerStyle>
顺便说一句，我知道，您在ListView中经常使用带有ColumnDefinitions或RowDefinitions的网格。这可能会降低您的用户界面。您应该考虑使用StackPanel和RelativePanel以及删除一些不必要的网格。