我正在使用 C# 和 WPF 开发一个项目,该项目动态创建包含一些文本、图像和按钮的网格布局。我创建了许多这样的网格,并将它们添加到堆栈面板中。我使用 XamlReader.Create() 函数创建了这个网格。这是整个代码,我很抱歉 Xaml 代码太长了
string xaml = "<Grid Height='92' Margin='0,10,0,0' xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation'>"+
"<Grid.Background>"+
"<LinearGradientBrush EndPoint='0.5,1' StartPoint='0.5,0'>"+
"<GradientStop Color='#FFACD7FF' Offset='0.172'/>"+
"<GradientStop Color='#FFACD7FF' Offset='0.508'/>"+
"<GradientStop Color='#FF69B5FF' Offset='0.996'/>"+
"<GradientStop Color='#FF79BEFB' Offset='0.017'/>"+
"<GradientStop Color='#FFACD7FF' Offset='0.877'/>"+
"</LinearGradientBrush>"+
"</Grid.Background>"+
"<Grid.RowDefinitions>"+
"<RowDefinition Height='0.522*'/>"+
"<RowDefinition Height='0.478*'/>"+
"</Grid.RowDefinitions>"+
"<Grid.ColumnDefinitions>"+
"<ColumnDefinition Width='133'/>"+
"<ColumnDefinition Width='73.5'/>"+
"<ColumnDefinition Width='0.833*'/>"+
"<ColumnDefinition Width='0.167*'/>"+
"<ColumnDefinition Width='108.775'/>"+
"</Grid.ColumnDefinitions>"+
"<Image Source='stockHome.jpg' Margin='8' Grid.Column='4' Grid.RowSpan='2'/>"+
"<TextBlock TextWrapping='Wrap' Text='Details: "+
addHouse.description+
"' Margin='8' Grid.Column='2' HorizontalAlignment='Center'/>"+
"<Button Content='View Full Description' Grid.Column='2' HorizontalAlignment='Center' Margin='4,8,0,8' Grid.Row='1' Width='134.667'/>"+
"<Label Content='$"+
addHouse.cost+
"' Margin='8,8,0,0' FontSize='21.333' FontFamily='Segoe UI Semibold' HorizontalAlignment='Left' RenderTransformOrigin='0.53,1.474'/>"+
"<Label Content='"+
addHouse.neighborhood+
"' Margin='8,0,0,8' Grid.Row='1' HorizontalAlignment='Left' Width='117' FontSize='18.667'/>"+
"<TextBlock Grid.Column='1' Margin='8,15,8,8' Grid.RowSpan='2' TextWrapping='Wrap'><Run Text='"+
addHouse.type+
"'/><LineBreak/><Run Text='"+
addHouse.bedrooms+
" Bed'/><LineBreak/><Run Text='"+
addHouse.bathrooms+
" Bath'/><LineBreak/><Run Text='ID: "+
addHouse.ID+
"'/></TextBlock>"+
"<Image Grid.Column='3' Margin='8,23.667,8,20.251' Grid.RowSpan='2' Source='HeartPop.png'/>"+
"</Grid>";
// Load the panel
StringReader stringReader = new StringReader(xaml);
XmlReader xmlReader = XmlReader.Create(stringReader);
Grid readerLoadGrid = (Grid)XamlReader.Load(xmlReader);
这对我来说效果很好,我认为这将是在运行时生成网格布局的正确方法,但是现在我需要命名按钮并定义一个事件处理程序,这就分崩离析了。当我尝试将按钮描述更改为
<Button x:Name = 'houseButton' Click = 'descriptionButtonClick' ...
我得到一个 XAMLParse 异常。在阅读完此内容后,我不太确定您是否可以在运行时在 xaml 中声明这些内容。所以现在,我对如何做到这一点感到非常困惑。创建网格后,我不能只更改名称,因为它没有名称可供调用。有没有办法访问 UIElement 的子元素,即使它没有名字?或者有没有办法在运行时在 XAML 中声明名称而我只是做错了?