private void OnEditReplacementParam(object sender, EventArgs e)
{
System.Diagnostics.Debug.Assert(replacementParameters.SelectedItems.Count == 1);
ListViewItem item = replacementParameters.SelectedItems[0];
TemplatorParameterDetails dlg = new TemplatorParameterDetails(item.SubItems[0].Text, item.SubItems[1].Text);
if (dlg.ShowDialog() == DialogResult.OK)
{
item.SubItems[0].Text = dlg.ParamName;
item.SubItems[1].Text = dlg.ParamRegex;
}
}