private void btnLists_Click(object sender, EventArgs e)
        {
            ListPicker lp = new ListPicker();

            lp.SiteUrl = txturl.Text;

            SPList origList = _selList;
            SPList clone    = (origList == null ? null : SPList.Clone(origList));

            lp.SelectedList = clone;
            lp.settings     = this.Settings;
            if (DialogResult.OK == lp.ShowDialog(this))
            {
                _selList = lp.SelectedList;
                UpdateListInfo();
                UpdateColInfo();
                UpdateColButtons();
            }
        }
        private void btnLists_Click(object sender, EventArgs e)
        {
            ListPicker lp = new ListPicker();
            lp.SiteUrl = txturl.Text;

            SPList origList = _selList;
            SPList clone = (origList == null ? null : SPList.Clone(origList));
            lp.SelectedList = clone;
            lp.settings = this.Settings;
            if (DialogResult.OK == lp.ShowDialog(this))
            {
                _selList = lp.SelectedList;                
                UpdateListInfo();
                UpdateColInfo();
                UpdateColButtons();
            }
        }