private static SearchCondition CreateLeafCondition(string propertyName, PropVariant propVar, string valueType,
SearchConditionOperation operation)
{
IConditionFactory nativeConditionFactory = null;
SearchCondition condition = null;
try
{
if (string.IsNullOrEmpty(propertyName) || propertyName.ToUpperInvariant() == "SYSTEM.NULL")
{
propertyName = null;
}
nativeConditionFactory = (IConditionFactory) new ConditionFactoryCoClass();
ICondition nativeCondition = null;
var hr = nativeConditionFactory.MakeLeaf(propertyName, (CONDITION_OPERATION)operation, valueType,
propVar, null, null, null, false, out nativeCondition);
if (HRESULT.Failed(hr))
{
throw ShellException.FromHRESULT(hr);
}
condition = new SearchCondition(nativeCondition);
}
finally
{
if (nativeConditionFactory != null)
{
Marshal.ReleaseComObject(nativeConditionFactory);
}
}
return(condition);
}
private static SearchCondition CreateLeafCondition(string propertyName, PropVariant propVar, string valueType, SearchConditionOperation operation)
{
IConditionFactory nativeConditionFactory = null;
SearchCondition condition = null;
try
{
// Same as the native "IConditionFactory:MakeLeaf" method
nativeConditionFactory = (IConditionFactory) new ConditionFactoryCoClass();
ICondition nativeCondition = null;
if (string.IsNullOrEmpty(propertyName) || propertyName.ToUpperInvariant() == "SYSTEM.NULL")
{
propertyName = null;
}
HResult hr = HResult.Fail;
hr = nativeConditionFactory.MakeLeaf(propertyName, operation, valueType,
propVar, null, null, null, false, out nativeCondition);
if (!CoreErrorHelper.Succeeded(hr))
{
throw new ShellException(hr);
}
// Create our search condition and set the various properties.
condition = new SearchCondition(nativeCondition);
}
finally
{
if (nativeConditionFactory != null)
{
Marshal.ReleaseComObject(nativeConditionFactory);
}
}
return(condition);
}
private static SearchCondition CreateLeafCondition(string propertyName, PropVariant propVar, string valueType, SearchConditionOperation operation)
{
IConditionFactory nativeConditionFactory = null;
SearchCondition condition = null;
try
{
// Same as the native "IConditionFactory:MakeLeaf" method
nativeConditionFactory = (IConditionFactory) new ConditionFactoryCoClass();
ICondition nativeCondition = null;
if (string.IsNullOrEmpty(propertyName) || propertyName.ToLower() == "system.null")
{
propertyName = null;
}
HRESULT hr = HRESULT.E_FAIL;
hr = nativeConditionFactory.MakeLeaf(propertyName, operation, valueType,
ref propVar, null, null, null, false, out nativeCondition);
if (!CoreErrorHelper.Succeeded((int)hr))
{
Marshal.ThrowExceptionForHR((int)hr);
}
// Create our search condition and set the various properties.
condition = new SearchCondition(nativeCondition);
}
finally
{
if (nativeConditionFactory != null)
{
Marshal.ReleaseComObject(nativeConditionFactory);
}
}
return(condition);
}
