HRESULT CPageEvents::UpdateItemFromNode(LPARAM lNode)
{
USES_CONVERSION;
// Typecast the tree item's param as an XML element pointer
IXMLDOMElement* pElement = reinterpret_cast<IXMLDOMElement*>(lNode);
if (!pElement)
return S_FALSE;
// Use to enable/disable the check boxes
bool bEnableLog2NT = false;
bool bEnableLog2DB = false;
// Determine if the node is a group element or an event
CComBSTR bstrTagName;
VERIFY(SUCCEEDED(pElement->get_tagName(&bstrTagName)));
bool bIsEvent = 0 == wcscmp(bstrTagName, m_bstrEvent);
bool bIsGroup = !bIsEvent && 0 == wcscmp(bstrTagName, m_bstrEventGroup);
ASSERT(bIsEvent || bIsGroup);
if (bIsEvent)
{
// Get the Severity attribute
CComVariant varSeverity;
pElement->getAttribute(m_bstrSeverity, &varSeverity);
VERIFY(SUCCEEDED(varSeverity.ChangeType(VT_BSTR)));
SetDlgItemText(IDC_EVENT_TYPE, TypeFromSeverity(V_BSTR(&varSeverity)));
// Get the event id attribute
CComVariant varEventID;
pElement->getAttribute(m_bstrID, &varEventID);
VERIFY(SUCCEEDED(varEventID.ChangeType(VT_I4)));
SetDlgItemInt(IDC_EVENT_ID, V_I4(&varEventID));
// Get the CanChangeLogAsNTEvent attribute
IXMLDOMAttributePtr spAttrNT;
if (S_OK == pElement->getAttributeNode(m_bstrCanChangeLogAsNTEvent, &spAttrNT))
{
CComVariant varCanChange;
spAttrNT->get_value(&varCanChange);
VERIFY(SUCCEEDED(varCanChange.ChangeType(VT_BOOL)));
bEnableLog2NT = !!V_BOOL(&varCanChange);
}
else
{
// When not specified, the default is true
bEnableLog2NT = true;
}
// Get the LogAsNTEvent attribute
CComVariant varLog2NT;
pElement->getAttribute(m_bstrLogAsNTEvent, &varLog2NT);
VERIFY(SUCCEEDED(varLog2NT.ChangeType(VT_BOOL)));
CheckDlgButton(IDC_LOG2NT, V_BOOL(&varLog2NT));
// Get the CanChangeLogAsDBEvent attribute
IXMLDOMAttributePtr spAttrDB;
if (S_OK == pElement->getAttributeNode(m_bstrCanChangeLogAsDBEvent, &spAttrDB))
{
CComVariant varCanChange;
spAttrDB->get_value(&varCanChange);
VERIFY(SUCCEEDED(varCanChange.ChangeType(VT_BOOL)));
bEnableLog2DB = !!V_BOOL(&varCanChange);
}
else
{
// When not specified, the default is true
bEnableLog2DB = true;
}
// Get the LogAsDBEvent attribute
CComVariant varLog2DB;
pElement->getAttribute(m_bstrLogAsDBEvent, &varLog2DB);
VERIFY(SUCCEEDED(varLog2DB.ChangeType(VT_BOOL)));
CheckDlgButton(IDC_LOG2DB, V_BOOL(&varLog2DB));
}
else
{
// Always show the type as "Group"
CString strGroup;
strGroup.LoadString(IDS_TYPE_GROUP);
SetDlgItemText(IDC_EVENT_TYPE, strGroup);
// Get the group LowerBound attribute
CComVariant varLowerBound;
pElement->getAttribute(m_bstrLowerBound, &varLowerBound);
VERIFY(SUCCEEDED(varLowerBound.ChangeType(VT_UI4)));
// Get the group UpperBound attribute
CComVariant varUpperBound;
pElement->getAttribute(m_bstrUpperBound, &varUpperBound);
VERIFY(SUCCEEDED(varUpperBound.ChangeType(VT_UI4)));
// Format the group's range into a string
TCHAR szID[_MAX_PATH];
wsprintf(szID, TEXT("%u - %u"), V_UI4(&varLowerBound),
V_UI4(&varUpperBound));
SetDlgItemText(IDC_EVENT_ID, szID);
// TODO: Work-out how to best support indeterminate checkbox state
CheckDlgButton(IDC_LOG2NT, false);
CheckDlgButton(IDC_LOG2DB, false);
}
// Get the event/group Description attribute
CComVariant varDescription;
pElement->getAttribute(m_bstrDescription, &varDescription);
VERIFY(SUCCEEDED(varDescription.ChangeType(VT_BSTR)));
SetDlgItemText(IDC_DESCRIPTION, OLE2CT(V_BSTR(&varDescription)));
// Enable/disable checkboxes
GetDlgItem(IDC_LOG2NT)->EnableWindow(bEnableLog2NT);
GetDlgItem(IDC_LOG2DB)->EnableWindow(bEnableLog2DB);
// Uncheck checkboxes that are disabled
if (!bEnableLog2NT)
CheckDlgButton(IDC_LOG2NT, false);
if (!bEnableLog2DB)
CheckDlgButton(IDC_LOG2DB, false);
// Indicate success
return S_OK;
}
