[LEXAR]

Тут описан такой пример:

protected void Button1_Click(object sender, EventArgs e)
    {
        AxUrlMenuItem menuItem = new AxUrlMenuItem("EPDocuGet");
        DataSetViewRow row = dsEPCustInvoiceJournalInfo.GetDataSet().DataSetViews[0].GetCurrent();
        AxTableContext context = AxTableContext.Create(row.GetDefaultTableDataKey(row.DataSetView.Metadata.RootDataSource));
        menuItem.MenuItemContext = context;
   
        //Response.Redirect(menuItem.Url.ToString());
 
        string downloadURL = "window.open('" + menuItem.Url.ToString() + "', '_blank', '' );";
        ScriptManager.RegisterStartupScript(this, typeof(string), "OPEN_WINDOW", downloadURL, true);
 
    }