private void btnMatch_Click(object sender, EventArgs e)
        {
            if (validate())
            {
                return;
            }
            Input objInput = new Input();

            objInput.MentorPath       = txtMentorPath.Text.Trim();
            objInput.MenteePath       = txtMenteePath.Text.Trim();
            objInput.MentorNameCol    = txtMentorName.Text.Trim();
            objInput.MentorDeptCol    = txtMentorDept.Text.Trim();
            objInput.MentorContactCol = txtMentorContact.Text.Trim();
            objInput.MentorEmailCol   = txtMentorEmailID.Text.Trim();
            objInput.MenteeNameCol    = txtMenteeName.Text.Trim();
            objInput.MenteeDeptCol    = txtMenteeDept.Text.Trim();
            objInput.MenteeContactCol = txtMenteeContact.Text.Trim();
            objInput.MenteeEmailCol   = txtMenteeEmail.Text.Trim();
            Matching objMatching = new Matching(objInput);

            if (_objMatch == null)
            {
                _objMatch              = new frmMatchResults(objMatching.FinalList);
                _objMatch.FormClosing += _objMatch_FormClosing;
                _objMatch.Show(this);
            }
            else
            {
                _objMatch.BringToFront();
            }
        }
 private void _objMatch_FormClosing(object sender, FormClosingEventArgs e)
 {
     _objMatch = null;
 }