我在我的项目中使用母版页，问题在于使用 我的内容页面中的ajax calendar exterder，
如果我使用日历扩展程序，则会出现如下错误：
Object reference not set to an instance of an object.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
期待您的宝贵解决方案........
Thnx in Advance， Supriya
答案 0 :(得分：0)
必须有代码隐藏错误。检查有关分配值的错误。您可能需要转换值。