我有一个矩形我XAML并希望在后面的代码改变其属性Canvas.Left
:如何在后面的代码中访问附加属性?
<UserControl x:Class="Second90.Page"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Width="400" Height="300" KeyDown="txt_KeyDown">
<Canvas>
<Rectangle
Name="theObject"
Canvas.Top="20"
Canvas.Left="20"
Width="10"
Height="10"
Fill="Gray"/>
</Canvas>
</UserControl>
但是,这并不工作:
private void txt_KeyDown(object sender, KeyEventArgs e)
{
theObject.Canvas.Left = 50;
}
有谁知道语法是做什么的这个?
谢谢,来得到这个工作,我不得不投射整数:theObject.SetValue(Canvas.LeftProperty,(double)50); – 2009-02-12 15:12:15
不,为此以double格式指定数字常量: heObject.SetValue(Canvas.LeftProperty,50.0); – Budda 2010-08-16 23:24:04