如何：设置元素和控件的边距

此示例介绍如何通过更改代码隐藏中边距的任何现有属性值来设置 Margin 属性。 Margin 属性是 FrameworkElement 基元素的属性，因此由各种控件和其他元素继承。

此示例是使用 Extensible Application Markup Language (XAML) 编写的，其中包含 XAML 引用的代码隐藏文件。 代码隐藏同时以 C# 和 Microsoft Visual Basic 版本显示。

示例

<Button Click="OnClick" Margin="10" Name="btn1">
Click To See Change!!</Button>

void OnClick(object sender, RoutedEventArgs e)
{
    // Get the current value of the property.
    Thickness marginThickness = btn1.Margin;
    // If the current leftlength value of margin is set to 10 then change it to a new value.
    // Otherwise change it back to 10.
    if(marginThickness.Left == 10)
    {
         btn1.Margin = new Thickness(60);
    } else {
         btn1.Margin = new Thickness(10);
    }
}

Private Sub OnClick(ByVal sender As Object, ByVal e As RoutedEventArgs)

    ' Get the current value of the property.
    Dim marginThickness As Thickness
    marginThickness = btn1.Margin
    ' If the current leftlength value of margin is set to 10 then change it to a new value.
    ' Otherwise change it back to 10.
    If marginThickness.Left = 10 Then
        btn1.Margin = New Thickness(60)
    Else
        btn1.Margin = New Thickness(10)
    End If
End Sub