Silverlight网格未填满整个空间

你的 Grid 有2列。第二列为空,因此已折叠,因此您无法看到它。将某些东西绑定到它可以解决“问题”。此外,还修改了 Path 此演示的数据,因为您拥有的数据不好。看一看:

private Grid ChangeContentObject()
{
    Grid g = new Grid();
    g.Background = new SolidColorBrush(Colors.Red);

    g.HorizontalAlignment = HorizontalAlignment.Stretch;
    g.VerticalAlignment = VerticalAlignment.Stretch;

    // add grid line to show columns border
    g.ShowGridLines = true;

    ColumnDefinition columnDefinitionForPath = new ColumnDefinition();
    columnDefinitionForPath.Width = new GridLength(4, GridUnitType.Star);

    ColumnDefinition columnDefinitionForEmpty = new ColumnDefinition();
    columnDefinitionForEmpty.Width = new GridLength(6, GridUnitType.Star);

    g.ColumnDefinitions.Add(columnDefinitionForPath);
    g.ColumnDefinitions.Add(columnDefinitionForEmpty);

    var p1 = new Path();
    p1.Stroke = new SolidColorBrush(Colors.Brown);
    p1.StrokeThickness = 2;
    p1.Stretch = Stretch.Fill;
    p1.HorizontalAlignment = HorizontalAlignment.Stretch;

    var b1 = new Binding
    {
        // modified path data
        Source = "M 10,100 C 10,300 300,-200 300,100"
    };
    BindingOperations.SetBinding(p1, Path.DataProperty, b1);

    var p2 = new Path();
    p2.Stroke = new SolidColorBrush(Colors.Brown);
    p2.StrokeThickness = 2;
    p2.Stretch = Stretch.Fill;
    p2.HorizontalAlignment = HorizontalAlignment.Stretch;

    var b2 = new Binding
    {
        // modified path data
        Source = "M 100,10 C 100,30 -200,100 100,300"
    };
    BindingOperations.SetBinding(p2, Path.DataProperty, b2);

    g.Children.Add(p1);
    g.Children.Add(p2);
    Grid.SetColumn(p1, 0);
    Grid.SetColumn(p2, 1);

    return g;
}

更新时间:

通常,a 网格 会自行伸展和扩展,根本不需要 “用空格填充” 。这里的问题是由于您将 网格 包含在 objectVisual ,这显然是 ContentControl (你在帖子里没有说清楚)。所以,你应该 objectVisual 派生自的类型 Panel ,比如说,另一个 网格 。

然后,替换此:

objectVisual.Content = ChangeContentObject();

使用此选项:

objectVisual.Children.Add(ChangeContentObject());

你会得到你想要的:

更新2:

嗯,你的 粘贴箱 代码与您的原始代码略有不同,虽然这也会起作用,但您误解了我所说的 网格 。你不需要 var gridChild ,您可以将第二列保留为空,就像在原始问题中一样。注意我把它注释掉了。因此,为了澄清,我发布了完整的 MCVE 下面是示例代码。结果看起来就像我之前发布的第二张图片。

用户控制CS:

public partial class SilverlightControl3 : UserControl
{
    public SilverlightControl3()
    {
        InitializeComponent();
    }

    private void UserControl_Loaded(object sender, RoutedEventArgs e)
    {
        objectVisual.Children.Add(ChangeContentObject());
    }

    private Grid ChangeContentObject()
    {
        Grid g = new Grid();
        g.Background = new SolidColorBrush(Colors.Red);

        g.HorizontalAlignment = HorizontalAlignment.Stretch;
        g.VerticalAlignment = VerticalAlignment.Stretch;

        // add grid line to show columns border
        g.ShowGridLines = true;

        ColumnDefinition columnDefinitionForPath = new ColumnDefinition();
        columnDefinitionForPath.Width = new GridLength(4, GridUnitType.Star);

        ColumnDefinition columnDefinitionForEmpty = new ColumnDefinition();
        columnDefinitionForEmpty.Width = new GridLength(6, GridUnitType.Star);

        g.ColumnDefinitions.Add(columnDefinitionForPath);
        g.ColumnDefinitions.Add(columnDefinitionForEmpty);

        var p1 = new Path();
        p1.Stroke = new SolidColorBrush(Colors.Blue);
        p1.StrokeThickness = 2;
        p1.Stretch = Stretch.Fill;
        p1.HorizontalAlignment = HorizontalAlignment.Stretch;

        g.Children.Add(p1);
        Grid.SetColumn(p1, 0);

        var b1 = new Binding
        {
            Source = "M 10,100 C 10,300 300,-200 300,100"
        };
        BindingOperations.SetBinding(p1, Path.DataProperty, b1);

        // you dont necessarily need this here, you can keep it empty like before
        /*
        var gridChild = new Grid();
        g.Children.Add(gridChild);
        Grid.SetColumn(gridChild, 1);
        */

        return g;
    }
}

用户控制XAML:

<UserControl x:Class="SilverlightApplication4.SilverlightControl3"
    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"
    mc:Ignorable="d"
    d:DesignHeight="300" d:DesignWidth="400" Loaded="UserControl_Loaded">

    <Grid x:Name="LayoutRoot" Background="White">
        <Grid x:Name="objectVisual" />
    </Grid>
</UserControl>

主窗口:

<UserControl x:Class="SilverlightApplication4.MainPage"
    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:SilverlightApplication4"
    mc:Ignorable="d"
    d:DesignHeight="300" d:DesignWidth="400">

    <Grid x:Name="LayoutRoot">
        <local:SilverlightControl3 />
    </Grid>
</UserControl>