more specifically, are these statements
更具体地说,是这些陈述
ownerControl.GroupBox1.Controls.Remove(childControl);
ownerControl.Controls.Add(childControl);
an equivalent to
相当于
childControl.Parent = ownerControl;
1 个解决方案
#1
Looking in reflector, it looks like Parent just calls Add (when the new parent is non-null). The Controls.Add deals with taking it away from the old parent. So actually, the following are functionally equivalent (when ownerControl is not null):
看看反射器,它看起来像Parent只调用Add(当新的父元素为非null时)。 Controls.Add处理从旧父母那里取走它。实际上,以下是功能相同的(当ownerControl不为null时):
ownerControl.Controls.Add(childControl); // note no Remove etc
and:
childControl.Parent = ownerControl;
Counter-intuitive, but a quick test shows that it works.
反直觉,但快速测试表明它有效。
#1
Looking in reflector, it looks like Parent just calls Add (when the new parent is non-null). The Controls.Add deals with taking it away from the old parent. So actually, the following are functionally equivalent (when ownerControl is not null):
看看反射器,它看起来像Parent只调用Add(当新的父元素为非null时)。 Controls.Add处理从旧父母那里取走它。实际上,以下是功能相同的(当ownerControl不为null时):
ownerControl.Controls.Add(childControl); // note no Remove etc
and:
childControl.Parent = ownerControl;
Counter-intuitive, but a quick test shows that it works.
反直觉,但快速测试表明它有效。