1
1: GroupRadioButton selectRadioButton =
2
this.FindControl("selectRadioButton") as GroupRadioButton;
3![]()
4
2:GroupRadioButton selectRadioButton =
5
(GroupRadioButton)this.FindControl("selectRadioButton") ;
6![]()
7![]()
8
两种转换方式
9![]()
1: GroupRadioButton selectRadioButton = 2
this.FindControl("selectRadioButton") as GroupRadioButton;3

4
2:GroupRadioButton selectRadioButton = 5
(GroupRadioButton)this.FindControl("selectRadioButton") ;6

7

8
两种转换方式9

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