我正在使用C#和WPF中的一个项目来动态创建一个包含一些文本,图像和按钮的网格布局。我创建了许多这些网格,并将它们添加到堆栈面板中。我使用XamlReader.Create()函数创建此网格。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);
这对我来说很好用,我认为这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。当我尝试将按钮说明更改为
时 <Button x:Name = 'houseButton' Click = 'descriptionButtonClick' ...
我得到一个XAMLParse异常。在阅读完这篇文章之后,我不太确定你可以在运行时在xaml中声明这些东西。所以现在,我对如何做到这一点非常困惑。我创建网格后只能更改名称,因为它没有名称可以被调用。是否有办法访问UIElement的孩子,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,我只是做错了?
答案 0 :(得分:1)
您可以在运行时定义Grid,就像您可以使用大多数其他控件一样。这是一个显示示例的页面:
http://sullivan.net/blog/2009/09/creating-a-wpf-grid-programmatically-code-behind/
你可以使用按钮对象并使用c#来访问它们:
按钮myBtn = new Button(); Button.Click + = new ....
答案 1 :(得分:1)
您可以设置Button的Name属性。
//... xaml definition
<Button Name='houseButton' ... />
//... xaml definition
您可以获得将事件附加到其上的按钮:
var xamlObj = XmlReader.Create(new StringReader(xamlString));
Grid grid = XamlReader.Load(xamlObj);
var btn = (Button)grid.FindName("houseButton");
btn.Click += ...