NullReferenceException???用VB在Partial Public Class Page1下定义变量出现未处理NullReferenceException
NullReferenceException???
用VB在Partial Public Class Page1下定义变量出现未处理NullReferenceException提示框。。求解决办法。。。！
代码如下
Partial Public Class Page1
Inherits PhoneApplicationPage
Dim a1 = Convert.ToInt32(Button1.Content)
[解决办法]
- VB code
Dim a1 as String'假設你的Button1存在a1=Convert.ToInt32(Button1.Content)