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用户控件在运行时在asp.net中不可见

[英]User controls are not visible at runtime in asp.net

I created a user control .ascx and added it in master page by dragging and drop so that registering and everything is done by automatically.i can see that usercontrol contains Menu in design time ,but when i run it i am not seeing it in UI. 我创建了一个用户控件.ascx并通过拖放将其添加到母版页中,以便注册和所有操作均由自动完成。我可以看到该用户控件在设计时包含Menu,但是当我运行它时,我在UI中看不到它。 Strange i checked page inspector console tab ,but no error throwing only thing it showing is local site you have added it in compatibility view and HTML1527: DOCTYPE expected. The shortest valid doctype is “<!DOCTYPE html>” 奇怪的是,我检查了页面检查器控制台选项卡,但仅抛出它显示的错误是在兼容性视图和HTML1527: DOCTYPE expected. The shortest valid doctype is “<!DOCTYPE html>”添加了本地名称的本地站点HTML1527: DOCTYPE expected. The shortest valid doctype is “<!DOCTYPE html>” HTML1527: DOCTYPE expected. The shortest valid doctype is “<!DOCTYPE html>” .I am doing HTML 5 conversion also for this website which was in previous version ,but not complete.Can anybody tell me why this behavior HTML1527: DOCTYPE expected. The shortest valid doctype is “<!DOCTYPE html>” 。我也在此网站中进行HTML 5转换,该网站是先前版本,但未完成。任何人都可以告诉我为什么这样做

不幸的是,我注释掉了用于填充Menu的代码,并且Enableviewstate为false,现已更正并且可以正常工作

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