protected virtual void EmitInvalidElementError(ValidationContext validationContext,
ParticleMatchInfo particleMatchInfo)
{
OpenXmlElement child;
// re-validate the element, collect the expected children information
if (particleMatchInfo.Match != ParticleMatch.Nomatch)
{
#if DEBUG
var oldParticleMatchInfo = particleMatchInfo;
particleMatchInfo = new ParticleMatchInfo();
#endif
child = validationContext.GetFirstChildMc();
validationContext.CollectExpectedChildren = true;
particleMatchInfo.Reset(child);
particleMatchInfo.InitExpectedChildren();
this.TryMatch(particleMatchInfo, validationContext);
validationContext.CollectExpectedChildren = false;
#if DEBUG
Debug.Assert(particleMatchInfo.Match == oldParticleMatchInfo.Match);
Debug.Assert(particleMatchInfo.LastMatchedElement == oldParticleMatchInfo.LastMatchedElement);
#endif
}
var element = validationContext.Element;
if (particleMatchInfo.LastMatchedElement == null)
{
child = validationContext.GetFirstChildMc();
}
else
{
child = validationContext.GetNextChildMc(particleMatchInfo.LastMatchedElement);
}
ValidationErrorInfo errorInfo;
string expectedChildren = null;
switch (particleMatchInfo.Match)
{
case ParticleMatch.Nomatch:
expectedChildren = GetExpectedChildrenMessage(validationContext.Element, this.GetExpectedElements());
break;
case ParticleMatch.Partial:
// error: the child can not be matched, it is invalid
if (child == null)
{
// missing child
errorInfo = validationContext.ComposeSchemaValidationError(element, null, "Sch_IncompleteContentExpectingComplex", GetExpectedChildrenMessage(element, particleMatchInfo.ExpectedChildren));
validationContext.EmitError(errorInfo);
return;
}
else
{
expectedChildren = GetExpectedChildrenMessage(validationContext.Element, particleMatchInfo.ExpectedChildren);
}
break;
case ParticleMatch.Matched:
if (this.ParticleConstraint.CanOccursMoreThanOne)
{
expectedChildren = GetExpectedChildrenMessage(validationContext.Element, this.GetExpectedElements());
}
else
{
expectedChildren = GetExpectedChildrenMessage(validationContext.Element, particleMatchInfo.ExpectedChildren);
}
break;
}
if (validationContext.Element.CanContainsChild(child))
{
// The child can be contained in the parent, but not follow the schema.
errorInfo = validationContext.ComposeSchemaValidationError(element, child, "Sch_UnexpectedElementContentExpectingComplex", child.XmlQualifiedName.ToString(), expectedChildren);
}
else
{
//Fix bug #448264, specifal case: same element name, but wrong type. Only occurs when validating memory DOM.
var validElement = element.TryCreateValidChild(validationContext.FileFormat, child.NamespaceUri, child.LocalName);
if (validElement == null)
{
errorInfo = validationContext.ComposeSchemaValidationError(element, child, "Sch_InvalidElementContentExpectingComplex", child.XmlQualifiedName.ToString(), expectedChildren);
}
else
{
// parent can contains a different type of element with same name
errorInfo = validationContext.ComposeSchemaValidationError(element, child, "Sch_InvalidElementContentWrongType", child.XmlQualifiedName.ToString(), child.GetType().Name);
}
}
validationContext.EmitError(errorInfo);
}
protected override void EmitInvalidElementError(ValidationContext validationContext,
ParticleMatchInfo particleMatchInfo)
{
var element = validationContext.Element;
OpenXmlElement child;
if (particleMatchInfo.LastMatchedElement == null)
{
child = validationContext.GetFirstChildMc();
}
else
{
child = validationContext.GetNextChildMc(particleMatchInfo.LastMatchedElement);
}
string expectedChildren;
ValidationErrorInfo errorInfo;
switch (particleMatchInfo.Match)
{
case ParticleMatch.Nomatch:
expectedChildren = GetExpectedChildrenMessage(validationContext.Element, this.GetExpectedElements());
errorInfo = validationContext.ComposeSchemaValidationError(element, child, "Sch_InvalidElementContentExpectingComplex", child.XmlQualifiedName.ToString(), expectedChildren);
validationContext.EmitError(errorInfo);
break;
case ParticleMatch.Partial:
case ParticleMatch.Matched:
if (this._childrenParticles.ContainsKey(child.ElementTypeId))
{
// more than one occurs of a child.
errorInfo = validationContext.ComposeSchemaValidationError(element, child, "Sch_AllElement", child.XmlQualifiedName.ToString());
validationContext.EmitError(errorInfo);
}
else
{
expectedChildren = GetExpectedChildrenMessage(validationContext.Element, particleMatchInfo.ExpectedChildren);
errorInfo = validationContext.ComposeSchemaValidationError(element, child, "Sch_InvalidElementContentExpectingComplex", child.XmlQualifiedName.ToString(), expectedChildren);
validationContext.EmitError(errorInfo);
}
break;
}
}
/// <summary>
/// Be called on root particle of complex type.
/// </summary>
/// <param name="validationContext"></param>
/// <returns></returns>
internal override void Validate(ValidationContext validationContext)
{
Debug.Assert(validationContext != null);
OpenXmlCompositeElement element = validationContext.Element as OpenXmlCompositeElement;
Debug.Assert(element != null);
var child = validationContext.GetFirstChildMc();
ValidationErrorInfo errorInfo;
// no children
if (child == null)
{
if (this.ParticleConstraint.MinOccurs == 0)
{
// no child, ok
return;
}
else
{
var requiredElements = this.GetRequiredElements();
if ( requiredElements.Count > 0 )
{
errorInfo = validationContext.ComposeSchemaValidationError(element, null, "Sch_IncompleteContentExpectingComplex", GetExpectedChildrenMessage(element, requiredElements));
validationContext.EmitError(errorInfo);
}
return;
}
}
if (this._particleMatchInfo == null)
{
this._particleMatchInfo = new ParticleMatchInfo(child);
}
else
{
_particleMatchInfo.Reset(child);
}
this.TryMatch(_particleMatchInfo, validationContext);
switch (_particleMatchInfo.Match)
{
case ParticleMatch.Nomatch:
// error: can not be matched, it is invalid
EmitInvalidElementError(validationContext, _particleMatchInfo);
return;
case ParticleMatch.Partial:
EmitInvalidElementError(validationContext, _particleMatchInfo);
return;
case ParticleMatch.Matched:
Debug.Assert(_particleMatchInfo.LastMatchedElement != null);
child = validationContext.GetNextChildMc(_particleMatchInfo.LastMatchedElement);
{
// Two cases now.
// 1. All children be matched.
// 2. Too many children ( > maxOccurs ).
if (child != null)
{
// invalid child
EmitInvalidElementError(validationContext, _particleMatchInfo);
// TODO: how can we tell the user what is the required child? Use reflection in OpenXmlElement.
}
else
{
//Debug.Assert(result.Valid == true);
}
}
break;
}
return;
}