session value can not clear

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I have take two session. In the popup I want to destroy the session but can not.

Session["StyleNo"] = ddlStyleNo.SelectedValue.ToString().Trim();
        Session["DefectNo"] = ddlDefectType.SelectedValue.ToString().Trim();
        ScriptManager.RegisterStartupScript(this, typeof(string), "OPEN_WINDOW", "var Mleft = (screen.width/2)-(760/2);var Mtop = (screen.height/2)-(700/2);window.open( 'Reports/Smt_StyleWiseReportWindow.aspx?', null, 'height=700,width=760,status=yes,toolbar=no,scrollbars=yes,menubar=no,location=no,top=\'+Mtop+\', left=\'+Mleft+\'' );", true);

In popup codes I tried different three ways in finally block but none work.

finally
{
Session["StyleNo"] = null;
Session["StyleNo"] = "";
Session.Remove("StyleNo");
}

Posted 24-Sep-14 23:02pm

Sumon562

Updated 24-Sep-14 23:47pm

sankarsan parida

v2

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[no name] 25-Sep-14 5:48am

simple this will work with this line only
Session["StyleNo"] = null;

2 solutions

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Leena 206 · Answer 1 · 2014-09-24T23:56:00

Solution 1

You can use session.clear();

for more details have look into this:
http://stackoverflow.com/questions/1470445/what-is-the-difference-between-session-abandon-and-session-clear[^]

It will give clear idea.. :)

Posted 24-Sep-14 23:56pm

Leena 206

Sumon562 · Answer 2 · 2014-09-25T00:17:00

After that code I clear the dropdown

SQL

Session["StyleNo"] = ddlStyleNo.SelectedValue.ToString().Trim();
        Session["DefectNo"] = ddlDefectType.SelectedValue.ToString().Trim();
        ScriptManager.RegisterStartupScript(this, typeof(string), "OPEN_WINDOW", "var Mleft = (screen.width/2)-(760/2);var Mtop = (screen.height/2)-(700/2);window.open( 'Reports/Smt_StyleWiseReportWindow.aspx?', null, 'height=700,width=760,status=yes,toolbar=no,scrollbars=yes,menubar=no,location=no,top=\'+Mtop+\', left=\'+Mleft+\'' );", true);

C#

ddlStyleNo.Items.Clear();
ddlDefectType.Items.Clear();