Frozen Column Example,qt固定表格第一列,固定树控件第一列 代码来自于QT官方例子
##Frozen Column Example
We use Qt's model/view framework to implement a table with its first column frozen. This technique can be aplied to several columns or rows, as long as they are on the edge of the table. The model/view framework allows for one model to be displayed in different ways using multiple views. For this example, we use two views on the same model - two table views sharing one model. The frozen column is a child of the main tableview, and we provide the desired visual effect using an overlay technique which will be described step by step in the coming sections.