尝试添加调试器; 关键字 $。getJSON
还要确保使用IE取消检查禁用脚本调试

Try to add debugger; key word before $.getJSON Also make sure if you use IE to un-check the disable script debugging

Internet选项>高级选项卡>在浏览下。

Internet Options> Advanced tab> Under Browsing.

我认为这个问题与Javascript调试有关而不是C＃

As I think this issue is related to Javascript debugging not C#