如何让自定义控件原来的width和height属性可用

需要使控件继承自webcontrol

并在重写的Render方法中这样写：

Dim theWidth As String = Me.Width.ToStringDim theHeight As String = Me.Height.ToString

output.AddAttribute(HtmlTextWriterAttribute.Height, theHeight)output.AddAttribute(HtmlTextWriterAttribute.Width, theWidth)