How to open the multiple pdf files in a new windows using asp.net

Question

In my application have grid view with check boxes, select multiple checkboxes click on print button open the pdfs in seperate windows. my code is

for (int i = 0; i < grdAdditionalInsured.Rows.Count; i++)
{
    CheckBox chk = (CheckBox)grdAdditionalInsured.Rows[i].Cells[0].FindControl("chkAdditionalInsured");

    if (chk.Checked == true)
    {
        //**some code to get the id based on values**
        string file = "/CertPrints/" + id.ToString() + ".pdf";
        String js = @"WindowPopup('" + file + "');";
        ScriptManager.RegisterStartupScript(this, this.GetType(), file, js, true);
    }
}

Above code show only last record pdf file, please give me suggestion .

Answer 1

Try this:

StringBuilder js = new StringBuilder();
for (int i = 0; i < grdAdditionalInsured.Rows.Count; i++)
{
    bool checked = ((CheckBox)grdAdditionalInsured.Rows[i].Cells[0].FindControl("chkAdditionalInsured")).Checked;
    if (checked)
    {
        //**some code to get the id based on values**
        js.AppendFormat(@"WindowPopup('/CertPrints/{0}.pdf');",id));
    }
}
ScriptManager.RegisterStartupScript(this, this.GetType(), "filePopup", js.ToString(), true);