why we need to pass Boolean value to the method
<p>I have confusion on below code i.e why we need to pass Boolean value to the method and what it returns?</p>

<pre><code>RefreshLookupList(false);
private void RefreshLookupList(bool forExport)

    {
        grdLists.Rows.Clear();
        grdLists.DataSource = Lists.GetListItems(cboListType.SelectedValue);
        grdLists.DataBind();

        lblCount.InnerText = "Lookups: " + grdLists.Rows.Count.ToString();
    }
</code></pre>
