如何在页面加载时强制下拉列表选择? [英] How do I force drop down list selections on page load?

问题描述

我有一个Default.aspx，它可以重定向到Page1.aspx.我的ddl是从数据库加载并订购的.如何根据用户在默认"页面上选择的内容使ddl选择显示在页面加载中?

I have a Default.aspx that redirects to a Page1.aspx. My ddl is loaded and ordered from a database. How do I make the ddl selection show up on the page load depending on what the user selects on the Default page?

推荐答案

您需要将某种数据从Default.aspx传递到Page1.aspx.我建议使用查询字符串.因此，例如在Default.aspx上，您将重定向到:

You will need to pass some kind of data from Default.aspx to Page1.aspx. I would suggest using a query string. So for example on Default.aspx you would redirect to:

Response.Redirect(〜/Page1.aspx?selectValue = 5");

然后在Page_Load的Page1.aspx上执行类似的操作

And then on Page1.aspx in Page_Load you would do something like

myDropDownList.SelectedValue = Request.QueryString("selectValue");

显然，您需要对Page1.aspx进行更多检查，以确保存在Request.QueryString("selectValue")等，但是您明白了.

Obviously you'll need to do some more checking on Page1.aspx to make sure Request.QueryString("selectValue") exists, etc. but you get the idea.

编辑-这是C#，因此添加了分号;)

edit-this is C#, so added the semicolon ;)

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