I need a link that saves variable in session first then open a new tab

Question

I have page "PictureLotFiles.aspx" that contains a CheckBoxList and a link(originally a hyperlink, but it doesn't work for me since it will not save the Session for me).

PicturesLotFiles.aspx
<asp:CheckBoxList ID="cblWarehouse" runat="server" Font-Size="10pt" Font-Names="Verdana"
        RepeatColumns="8" RepeatDirection="Horizontal" OnSelectedIndexChanged="cblWarehouse_SelectedIndexChanged">
</asp:CheckBoxList>

<asp:LinkButton ID="lnkBtnSummary" runat="server" OnClick="lnkBtnSummary_Click"
        Target="_blank">Review Lot Pictures Summary Report</asp:LinkButton>

What I am trying to accomplish is to pass the selected value(s) from cblWarehouse to the summary page "PictureLotFilesSummary.aspx". So I have the following codebehind working.

PicturesLotFiles.aspx.cs
protected void lnkBtnSummary_Click(object sender, System.EventArgs e)
{
    Session["WarehouseSelected"] = "";

    StringBuilder sb = new StringBuilder();
    foreach (ListItem listItem in cblWarehouse.Items)
    {
        if (listItem.Selected)
        {
            sb.Append(listItem.Value);
            sb.Append(", ");             
        }
    }

    if (sb.Length>2)
        sb.Remove(sb.Length - 2, 2);

    Session["WarehouseSelected"] = sb;

    //Response.Write("<SCRIPT language=\"javascript\">open('PicturesLotFilesSummary.aspx','_blank','top=0,left=0,status=yes,resizable=yes,scrollbars=yes');</script>");
    //Response.Redirect("~/PicturesLotFilesSummary.aspx");
}

From my code above I was able to pass the values using Session, but I have not tried QueryString yet. I have commented out the last two line since one of it opens a new pop up window, and the other one simply redirect to the page.

Is there any other way I can try to accomplish my goal? Which is pass the values selected to the summary page and open it in the new tabs instead of new window? Thanks!

Maybe you should try QueryString and check if that way works for you.For open a new tab, check this [answer](https://stackoverflow.com/a/10493957/4092887) or try `c# asp.net open in new tab`. — Mauricio Arias Olave, Aug 09 '17 at 19:25
@MauricioAriasOlave the link you provided also opens the page in new window for me. I guess I will have to accept that. — joseph.c, Aug 09 '17 at 19:29

score 1 · Accepted Answer · answered Aug 09 '17 at 19:26

You can use window.open, but remove all the windows formatting arguments

Response.Write("<SCRIPT language=\"javascript\">open('PicturesLotFilesSummary.aspx','_blank');</script>");

After that it's up to the browser's setting whether it's setup to open links in a new window or a new tab.

If you need to pass sd as an argument it shouldn't be a big deal:

Response.Write("<SCRIPT language=\"javascript\">open('PicturesLotFilesSummary.aspx?sb=" + 
    sb + "','_blank');</script>");

I need a link that saves variable in session first then open a new tab

1 Answers1