Question

We are using Sharepoint 2007
We initialising the session variable on page load
We have one javascript function as mentioned below

function backclick()
{
 __doPostBack('btnCaseSearch', 'Click'); 
alert('Select the Search Criteria.');
}

but after calling this we are losing session value.
If we remove __doPostBack(‘btnCaseSearch’, ‘Click’);
then alert is displaying each time when page gets load but session is not losing its value.
How to maintain session pls help or suggest some alternative to _doPostBack()

the sceneario is like this
below javascript function

function backclick()
{
 __doPostBack('btnCaseSearch', 'Click'); 
alert(result not found.');
}

function check()
{
var btn ="<%=Session["search"]%>";
if(btn == "true")
{
do something
}
else
{
else part
}

Below server side code

Page_Load()
{
//initialise session variable
session["search"] = "true";
}
btnSearch_click()
{
 if(result not found)
{
this.Page.ClientScript.RegisterStartupScript(this.GetType(),"page_index_script1", "backclick();", true);

}
}

so when backclick() javascript function gets called at that time session is losing its state but if backclick() doesn’t get called then code works perferctly

Thanks

Answer 1

Something which jumped out at me:

We initialising the session variable on page load

Is this page load server-side?

Each time you _doPostBack will cause pageLoad to execute, so I believe this is where you’re overwriting your session variable.

The only way the session will loose it’s state is:

• If it gets overwritten or removed (use a breakpoint to check you’re not setting it twice!)
• The browser is not surrendering the cookie on subsequent requests

Check both of these and if your problem isn’t solved post what you found.