I wonder if you have ever encountered such an embarrassment:
When your page authentication is based on cookies, such as form and Windows integrated authentication, the authentication sometimes fails after the following operations, and the Authentication (user authentication information) is lost, and you need to log in again.
After the system logs in normally:
After the first page (): (), the second page () pops up
After the second page (): (), the pop-up window () sometimes jumps to the login page
This should be because different pages exist in different processes, resulting in the identity information being out of sync and the authentication failure occurred. However, there is a certain probability that this will occur. With the help of the MS consultant, the method was finally found:
In summary, when showModalDialog(), the window is passed in as an object parameter, and in PageB, use this parameter to open(), so the problem is solved.
The details are as follows:
-------------------------
...
var obj = new Object();
= window;//Save this window into object parameters
("",obj,"");
...
----------------------------------
-------------------------
...
var obj = ;//Get the parameters of the previous page
("");//Open the next page with the parameters passed from the previous page
...
----------------------------------
After testing, there was no more identity loss, and the task was done!
Careful friends will find that such an operation will cause, because the opener is not a problem, it cannot communicate with each other, and open() cannot pass the object parameters, so they panic!
Fortunately, in JavaScript, the object is a big tree, and you can hang anything on its branches, so in order to communicate with us, we transform it as follows:
-------------------------
...
var obj = ;//Get the parameters of the previous page
var = new Object();
= window; //Hang the window of PageB under the window branch of PageA
("");//Open the next page with the parameters passed from the previous page
...
----------------------------------
In this way, you can communicate with the object of the PageB page in PageC, for example ("TextBox1").value="OK"
Note:
1. This may be just a situation. Open first and showModalDialog may also lead to the loss of identity information, but as long as you pass the window without problems to the next page, the problem will be solved.
(See the loss situation/?tid=45123&fpage=2）
2. It may also happen during Session, see/?scid=kb;EN-US;196383