[英]how to get value of an element at point of postback to use in Page_Load method?
I'm writing an ASP.NET form which uses a custom web service to populate a table based on values (the specifics of this are not important). 我正在编写一个ASP.NET表单,该表单使用自定义Web服务根据值填充表(此表的细节并不重要)。
On the page are two ASP.NET Calendar controls, what I want to be able to do is make use of the AutoPostback behaviour of these to make a new web service call each time the SelectedDate
of one of these changes, using its value as an input parameter. 页面上有两个ASP.NET日历控件,我要能够做的就是利用这些控件的AutoPostback行为,每次在其中一个更改的
SelectedDate
处进行一次新的Web服务调用,都将其值用作输入参数。
Currently I set the value of the controls in the Page_Load
(in an if (!Page.IsPostBack){}
statement), and the first web service call includes both of these values. 当前,我在
Page_Load
设置控件的值(在if (!Page.IsPostBack){}
语句中),并且第一个Web服务调用包括这两个值。 If one of these calendars is updated, I want a new web service call to be made, with the Submitted value from the calendar as a parameter, currently I can't get the request to contain anything but the initial value, which was set on the first page load. 如果更新了这些日历之一,则我希望使用日历中的Submitted值作为参数进行新的Web服务调用,目前我无法获得除初始值(该初始值已设置)之外的任何请求第一页加载。
您是否尝试过在日历控件的on_changed事件中放置用于调用Web服务的代码?
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