Question

我试图将Border元素的Background属性绑定到代码中WriteableBitmap类型的属性。

将Image写成WriteableBitmap，我尝试以下操作但没有成功，因此，边框显示没有任何背景：

Binding b = new Binding();
b.Source = dataContext.Image;
myBorder.SetBinding(Border.BackgroundProperty, b);

dataContext.Image = new WriteableBitmap(1, 1);
dataContext.Image.SetSource(e.ChosenPhoto);

我错过了什么？

Answer 1

我不确定Image是否属于您的财产，但您可以尝试这样：

Binding b = new Binding();
b.Path = new PropertyPath("Image"); // Image should be a public property in your datacontext
b.Source = dataContext;
myBorder.SetBinding(Border.BackgroundProperty, b);

dataContext.Image = new WriteableBitmap(1, 1);
dataContext.Image.SetSource(e.ChosenPhoto);
RaiseProperty("Image"); //raise property change

如何将Background属性绑定到代码中的WriteableBitmap？

1 个答案: