void ResetParent()
{
if (RuleLibrary.GetRuleByName(selectedRule.parentRule) == null)
{
parentRule.SelectedItem = noParent;
}
else
{
parentRule.SelectedItem = selectedRule.parentRule;
}
}
private void ParentRule_SelectedIndexChanged(object s, EventArgs e)
{
if (selectedRule != null)
{
Rule checkedRule = RuleLibrary.GetRuleByName(parentRule.Text);
while (checkedRule != null)
{
checkedRule = RuleLibrary.GetRuleByName(checkedRule.parentRule);
if (checkedRule == selectedRule)
{
MessageBox.Show("Loops are not allowed in the parent rule chain.");
ResetParent();
return;
}
}
selectedRule.parentRule = !parentRule.Text.Equals(noParent) ? parentRule.Text : null;
}
}