c# web编程 c#入门经典的例题
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class ResultPage : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{

try
{
DropDownList dropDownListEvents = (DropDownList)PreviousPage.FindControl("dropDownList1");
string selectedEvent = dropDownListEvents.SelectedValue;
string firstname = ((TextBox)PreviousPage.FindControl("firstName")).Text;
string lastname = ((TextBox)PreviousPage.FindControl("lastName")).Text;
string email = ((TextBox)PreviousPage.FindControl("email")).Text;
LabelResult.Text = firstname + " " + lastname + " select the event " + selectedEvent;
}
catch
{
LabelResult.Text = " The originating page must contain firstname,lastname,email";
}



}
}
原意是将输入的文本在另一个页面中显示，
但是PreviousPage出现异常，System.InvalidOperationException
不能显示文本内容

[解决办法]
楼主 你发错地方了
[解决办法]
wrong place!!