/// <summary>
/// Creates a condition node that is a logical negation (NOT) of another condition
/// (a subnode of this node).
/// </summary>
/// <param name="conditionToBeNegated">SearchCondition node to be negated.</param>
/// <param name="simplify">True to logically simplify the result if possible; False otherwise.
/// In a query builder scenario, simplyfy should typically be set to false.</param>
/// <returns>New SearchCondition</returns>
public static SearchCondition CreateNotCondition(SearchCondition conditionToBeNegated, bool simplify)
{
if (conditionToBeNegated == null)
{
throw new ArgumentNullException(nameof(conditionToBeNegated));
}
// Same as the native "IConditionFactory:MakeNot" method
IConditionFactory nativeConditionFactory = (IConditionFactory) new ConditionFactoryCoClass();
ICondition result;
try
{
HResult hr = nativeConditionFactory.MakeNot(conditionToBeNegated.NativeSearchCondition, simplify, out result);
if (!CoreErrorHelper.Succeeded(hr))
{
throw new ShellException(hr);
}
}
finally
{
if (nativeConditionFactory != null)
{
Marshal.ReleaseComObject(nativeConditionFactory);
}
}
return(new SearchCondition(result));
}
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);
}
/// <summary>
/// Creates a condition node that is a logical negation (NOT) of another condition
/// (a subnode of this node).
/// </summary>
/// <param name="conditionToBeNegated">SearchCondition node to be negated.</param>
/// <param name="simplyfy">True to logically simplify the result if possible; False otherwise.
/// In a query builder scenario, simplyfy should typically be set to false.</param>
/// <returns>New SearchCondition</returns>
public static SearchCondition CreateNotCondition(SearchCondition conditionToBeNegated, bool simplyfy)
{
// Same as the native "IConditionFactory:MakeNot" method
IConditionFactory nativeConditionFactory = (IConditionFactory) new ConditionFactoryCoClass();
ICondition result;
try
{
HRESULT hr = nativeConditionFactory.MakeNot(conditionToBeNegated.NativeSearchCondition, simplyfy, out result);
if (!CoreErrorHelper.Succeeded((int)hr))
{
Marshal.ThrowExceptionForHR((int)hr);
}
}
finally
{
if (nativeConditionFactory != null)
{
Marshal.ReleaseComObject(nativeConditionFactory);
}
}
return(new SearchCondition(result));
}
/// <summary>
/// Creates a condition node that is a logical conjunction ("AND") or disjunction ("OR")
/// of a collection of subconditions.
/// </summary>
/// <param name="conditionType">The SearchConditionType of the condition node.
/// Must be either AndCondition or OrCondition.</param>
/// <param name="simplyfy">TRUE to logically simplify the result, if possible;
/// then the result will not necessarily to be of the specified kind. FALSE if the result should
/// have exactly the prescribed structure. An application that plans to execute a query based on the
/// condition tree would typically benefit from setting this parameter to TRUE. </param>
/// <param name="conditionNodes">Array of subconditions</param>
/// <returns>New SearchCondition based on the operation</returns>
public static SearchCondition CreateAndOrCondition(SearchConditionType conditionType, bool simplyfy, params SearchCondition[] conditionNodes)
{
// Same as the native "IConditionFactory:MakeAndOr" method
IConditionFactory nativeConditionFactory = (IConditionFactory) new ConditionFactoryCoClass();
ICondition result = null;
try
{
//
List <ICondition> conditionList = new List <ICondition>();
foreach (SearchCondition c in conditionNodes)
{
conditionList.Add(c.NativeSearchCondition);
}
IEnumUnknown subConditions = new EnumUnknownClass(conditionList.ToArray());
HRESULT hr = nativeConditionFactory.MakeAndOr(conditionType, subConditions, simplyfy, out result);
if (!CoreErrorHelper.Succeeded((int)hr))
{
Marshal.ThrowExceptionForHR((int)hr);
}
}
finally
{
if (nativeConditionFactory != null)
{
Marshal.ReleaseComObject(nativeConditionFactory);
}
}
return(new SearchCondition(result));
}
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);
}
