WPF后台动态修改Margin的值

举例说明：动态添加一个TextBox到Grid中，并设置它的Margin:

TextBox text = new TextBox();

t_grid.Children.Add(text);

Thickness margin = new Thickness(left, top, right, bottom);

text.Margin = margin;

完整示例：

TextBox TxMagic = new TextBox();
TxMagic.Width = 100;
TxMagic.FontSize = 18;
// 添加控件
MainGrid.Children.Add(TxMagic);
// 设置边距
Thickness margin = new Thickness();
margin.Left = 100;
margin.Top = 386;
TxMagic.Margin = margin;
// 背景色
TxMagic.Background = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#FFFE0001"));
TxMagic.Text = "1";
// 字体色
TxMagic.Foreground = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#FF1E0FA6"));