asp.net - 为什么 HTML 标准重置按钮不能重置 asp.net 表单的值？

Question

为什么 HTML 重置按钮不能直接重置 ASP.NET 表单？为什么我们需要编写额外的代码来实现 ASP.NET 窗体的 Reset 功能？

我正在寻找这背后的解释。

Answer 1

asp.net 在称为“ViewState”的东西中维护其值。

这会记住您分配给输入的值，因此如果您想重置输入，您必须自己清除它们。

你应该阅读 Understanding asp.net ViewState

view state, in a nutshell, is the technique used by an ASP.NET Web page to persist changes to the state of a Web Form across postbacks.
The view state of a page is, by default, placed in a hidden form field named __VIEWSTATE. View state's purpose in life is simple: it's there to persist state across postbacks. (For an ASP.NET Web page, its state is the property values of the controls that make up its control hierarchy.)