wpf 如何使用代码隐藏创建 StackPanel -> Border -> Background
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How to use code-behind to create StackPanel -> Border -> Background
提问by Eric after dark
I'm trying to set properties of a TreeViewItem-> StackPanelin c# like this question. It seems to make a lot of sense until I get to the part where I try to edit the Backgroundin my Border. Bordershave Backgroundobjects in them, but for the life of me I can't set a color or anything. It seems to be inconsistent because I can add Contentto a Labelby simply saying, Content = "Title".
我正在尝试像这个问题一样在 c# 中设置 a TreeViewItem-> 的属性。这似乎很有意义，直到我到达我尝试在我的. 里面有物体，但对于我的生活，我无法设置颜色或任何东西。这似乎不一致，因为我可以通过简单地说，添加到 a 。StackPanelBackgroundBorderBordersBackgroundContentLabelContent = "Title"
Anyway, this is my code:
无论如何，这是我的代码：
public static TreeViewItem childNode = new TreeViewItem() //Child Node
{
Header = new StackPanel
{
Orientation = Orientation.Horizontal,
Children =
{
new Border {
Width = 12,
Height = 14,
Background = ? //How do I set the background?
},
new Label {
Content = "Child1"
}
}
}
};
PS - I have the same problem when trying to add a BorderBrush
PS - 尝试添加时我遇到了同样的问题 BorderBrush
Thank you!
谢谢！
回答by Anatoliy Nikolaev
Backgroundproperty accepts an Brush. Therefore, the code can set the color as follows:
Background属性接受一个Brush. 因此，代码可以设置颜色如下：
MyLabel.Background = Brushes.Aquamarine;
Or this:
或这个：
SolidColorBrush myBrush = new SolidColorBrush(Colors.Red);
MyLabel.Background = myBrush;
To set any color, you can use BrushConverter:
要设置任何颜色，您可以使用BrushConverter：
BrushConverter MyBrush = new BrushConverter();
MyLabel.Background = (Brush)MyBrush.ConvertFrom("#ABABAB");
Setting the property to the LinearGradientBrushin code:
将属性设置为LinearGradientBrushin 代码：
LinearGradientBrush myBrush = new LinearGradientBrush();
myBrush.GradientStops.Add(new GradientStop(Colors.Yellow, 0.0));
myBrush.GradientStops.Add(new GradientStop(Colors.Green, 0.5));
myBrush.GradientStops.Add(new GradientStop(Colors.Red, 1.0));
MyLabel.Background = myBrush;
For you it would look like this:
对你来说，它看起来像这样：
private void Window_ContentRendered(object sender, EventArgs e)
{
TreeViewItem childNode = new TreeViewItem()
{
Header = new StackPanel
{
Orientation = Orientation.Horizontal,
Children =
{
new Border
{
Width = 12,
Height = 14,
Background = Brushes.Yellow, // Set background here
},
new Label
{
Content = "Child1",
Background = Brushes.Pink, // Set background here
}
}
}
};
MyTreeView.Items.Add(childNode);
}
