private bool CanConnectWebPartsCore(WebPart provider, ProviderConnectionPoint providerConnectionPoint, WebPart consumer, ConsumerConnectionPoint consumerConnectionPoint, WebPartTransformer transformer, bool throwOnError)
{
if (!this.Personalization.IsModifiable)
{
if (!throwOnError)
{
return false;
}
this.Personalization.EnsureEnabled(true);
}
if (provider == null)
{
throw new ArgumentNullException("provider");
}
if (!this.Controls.Contains(provider))
{
throw new ArgumentException(System.Web.SR.GetString("UnknownWebPart"), "provider");
}
if (consumer == null)
{
throw new ArgumentNullException("consumer");
}
if (!this.Controls.Contains(consumer))
{
throw new ArgumentException(System.Web.SR.GetString("UnknownWebPart"), "consumer");
}
if (providerConnectionPoint == null)
{
throw new ArgumentNullException("providerConnectionPoint");
}
if (consumerConnectionPoint == null)
{
throw new ArgumentNullException("consumerConnectionPoint");
}
Control control = provider.ToControl();
Control control2 = consumer.ToControl();
if (providerConnectionPoint.ControlType != control.GetType())
{
throw new ArgumentException(System.Web.SR.GetString("WebPartManager_InvalidConnectionPoint"), "providerConnectionPoint");
}
if (consumerConnectionPoint.ControlType != control2.GetType())
{
throw new ArgumentException(System.Web.SR.GetString("WebPartManager_InvalidConnectionPoint"), "consumerConnectionPoint");
}
if (provider == consumer)
{
if (throwOnError)
{
throw new InvalidOperationException(System.Web.SR.GetString("WebPartManager_CantConnectToSelf"));
}
return false;
}
if (provider.IsClosed)
{
if (throwOnError)
{
throw new InvalidOperationException(System.Web.SR.GetString("WebPartManager_CantConnectClosed", new object[] { provider.ID }));
}
return false;
}
if (consumer.IsClosed)
{
if (throwOnError)
{
throw new InvalidOperationException(System.Web.SR.GetString("WebPartManager_CantConnectClosed", new object[] { consumer.ID }));
}
return false;
}
if (!providerConnectionPoint.GetEnabled(control))
{
if (throwOnError)
{
throw new InvalidOperationException(System.Web.SR.GetString("WebPartConnection_DisabledConnectionPoint", new object[] { providerConnectionPoint.ID, provider.ID }));
}
return false;
}
if (!consumerConnectionPoint.GetEnabled(control2))
{
if (throwOnError)
{
throw new InvalidOperationException(System.Web.SR.GetString("WebPartConnection_DisabledConnectionPoint", new object[] { consumerConnectionPoint.ID, consumer.ID }));
}
return false;
}
if (!providerConnectionPoint.AllowsMultipleConnections)
{
foreach (WebPartConnection connection in this.Connections)
{
if ((connection.Provider == provider) && (connection.ProviderConnectionPoint == providerConnectionPoint))
{
if (throwOnError)
{
throw new InvalidOperationException(System.Web.SR.GetString("WebPartConnection_Duplicate", new object[] { providerConnectionPoint.ID, provider.ID }));
}
return false;
}
}
}
if (!consumerConnectionPoint.AllowsMultipleConnections)
{
foreach (WebPartConnection connection2 in this.Connections)
{
if ((connection2.Consumer == consumer) && (connection2.ConsumerConnectionPoint == consumerConnectionPoint))
{
if (throwOnError)
{
throw new InvalidOperationException(System.Web.SR.GetString("WebPartConnection_Duplicate", new object[] { consumerConnectionPoint.ID, consumer.ID }));
}
return false;
}
}
}
if (transformer == null)
{
if (providerConnectionPoint.InterfaceType != consumerConnectionPoint.InterfaceType)
{
if (throwOnError)
{
throw new InvalidOperationException(System.Web.SR.GetString("WebPartConnection_NoCommonInterface", new string[] { providerConnectionPoint.DisplayName, provider.ID, consumerConnectionPoint.DisplayName, consumer.ID }));
}
return false;
}
ConnectionInterfaceCollection secondaryInterfaces = providerConnectionPoint.GetSecondaryInterfaces(control);
if (!consumerConnectionPoint.SupportsConnection(control2, secondaryInterfaces))
{
if (throwOnError)
{
throw new InvalidOperationException(System.Web.SR.GetString("WebPartConnection_IncompatibleSecondaryInterfaces", new string[] { consumerConnectionPoint.DisplayName, consumer.ID, providerConnectionPoint.DisplayName, provider.ID }));
}
return false;
}
}
else
{
Type type = transformer.GetType();
if (!this.AvailableTransformers.Contains(type))
{
throw new InvalidOperationException(System.Web.SR.GetString("WebPartConnection_TransformerNotAvailable", new object[] { type.FullName }));
}
Type consumerType = WebPartTransformerAttribute.GetConsumerType(type);
Type providerType = WebPartTransformerAttribute.GetProviderType(type);
if (providerConnectionPoint.InterfaceType != consumerType)
{
if (throwOnError)
{
throw new InvalidOperationException(System.Web.SR.GetString("WebPartConnection_IncompatibleProviderTransformer", new object[] { providerConnectionPoint.DisplayName, provider.ID, type.FullName }));
}
return false;
}
if (providerType != consumerConnectionPoint.InterfaceType)
{
if (throwOnError)
{
throw new InvalidOperationException(System.Web.SR.GetString("WebPartConnection_IncompatibleConsumerTransformer", new object[] { type.FullName, consumerConnectionPoint.DisplayName, consumer.ID }));
}
return false;
}
if (!consumerConnectionPoint.SupportsConnection(control2, ConnectionInterfaceCollection.Empty))
{
if (throwOnError)
{
throw new InvalidOperationException(System.Web.SR.GetString("WebPartConnection_ConsumerRequiresSecondaryInterfaces", new object[] { consumerConnectionPoint.DisplayName, consumer.ID }));
}
return false;
}
}
return true;
}
internal void Activate()
{
this.Transformers.SetReadOnly();
WebPart provider = this.Provider;
WebPart consumer = this.Consumer;
Control control = provider.ToControl();
Control control2 = consumer.ToControl();
System.Web.UI.WebControls.WebParts.ProviderConnectionPoint providerConnectionPoint = this.ProviderConnectionPoint;
if (!providerConnectionPoint.GetEnabled(control))
{
consumer.SetConnectErrorMessage(System.Web.SR.GetString("WebPartConnection_DisabledConnectionPoint", new object[] { providerConnectionPoint.DisplayName, provider.DisplayTitle }));
}
else
{
System.Web.UI.WebControls.WebParts.ConsumerConnectionPoint consumerConnectionPoint = this.ConsumerConnectionPoint;
if (!consumerConnectionPoint.GetEnabled(control2))
{
consumer.SetConnectErrorMessage(System.Web.SR.GetString("WebPartConnection_DisabledConnectionPoint", new object[] { consumerConnectionPoint.DisplayName, consumer.DisplayTitle }));
}
else if (!provider.IsClosed && !consumer.IsClosed)
{
WebPartTransformer transformer = this.Transformer;
if (transformer == null)
{
if (providerConnectionPoint.InterfaceType == consumerConnectionPoint.InterfaceType)
{
ConnectionInterfaceCollection secondaryInterfaces = providerConnectionPoint.GetSecondaryInterfaces(control);
if (consumerConnectionPoint.SupportsConnection(control2, secondaryInterfaces))
{
object data = providerConnectionPoint.GetObject(control);
consumerConnectionPoint.SetObject(control2, data);
this._isActive = true;
}
else
{
consumer.SetConnectErrorMessage(System.Web.SR.GetString("WebPartConnection_IncompatibleSecondaryInterfaces", new string[] { consumerConnectionPoint.DisplayName, consumer.DisplayTitle, providerConnectionPoint.DisplayName, provider.DisplayTitle }));
}
}
else
{
consumer.SetConnectErrorMessage(System.Web.SR.GetString("WebPartConnection_NoCommonInterface", new string[] { providerConnectionPoint.DisplayName, provider.DisplayTitle, consumerConnectionPoint.DisplayName, consumer.DisplayTitle }));
}
}
else
{
Type type = transformer.GetType();
if (!this._webPartManager.AvailableTransformers.Contains(type))
{
string str;
if ((this._webPartManager.Context != null) && this._webPartManager.Context.IsCustomErrorEnabled)
{
str = System.Web.SR.GetString("WebPartConnection_TransformerNotAvailable");
}
else
{
str = System.Web.SR.GetString("WebPartConnection_TransformerNotAvailableWithType", new object[] { type.FullName });
}
consumer.SetConnectErrorMessage(str);
}
Type consumerType = WebPartTransformerAttribute.GetConsumerType(type);
Type providerType = WebPartTransformerAttribute.GetProviderType(type);
if ((providerConnectionPoint.InterfaceType == consumerType) && (providerType == consumerConnectionPoint.InterfaceType))
{
if (consumerConnectionPoint.SupportsConnection(control2, ConnectionInterfaceCollection.Empty))
{
object providerData = providerConnectionPoint.GetObject(control);
object obj4 = transformer.Transform(providerData);
consumerConnectionPoint.SetObject(control2, obj4);
this._isActive = true;
}
else
{
consumer.SetConnectErrorMessage(System.Web.SR.GetString("WebPartConnection_ConsumerRequiresSecondaryInterfaces", new object[] { consumerConnectionPoint.DisplayName, consumer.DisplayTitle }));
}
}
else if (providerConnectionPoint.InterfaceType != consumerType)
{
string str2;
if ((this._webPartManager.Context != null) && this._webPartManager.Context.IsCustomErrorEnabled)
{
str2 = System.Web.SR.GetString("WebPartConnection_IncompatibleProviderTransformer", new object[] { providerConnectionPoint.DisplayName, provider.DisplayTitle });
}
else
{
str2 = System.Web.SR.GetString("WebPartConnection_IncompatibleProviderTransformerWithType", new object[] { providerConnectionPoint.DisplayName, provider.DisplayTitle, type.FullName });
}
consumer.SetConnectErrorMessage(str2);
}
else
{
string str3;
if ((this._webPartManager.Context != null) && this._webPartManager.Context.IsCustomErrorEnabled)
{
str3 = System.Web.SR.GetString("WebPartConnection_IncompatibleConsumerTransformer", new object[] { consumerConnectionPoint.DisplayName, consumer.DisplayTitle });
}
else
{
str3 = System.Web.SR.GetString("WebPartConnection_IncompatibleConsumerTransformerWithType", new object[] { type.FullName, consumerConnectionPoint.DisplayName, consumer.DisplayTitle });
}
consumer.SetConnectErrorMessage(str3);
}
}
}
}
}
private bool CanConnectWebPartsCore(WebPart provider, ProviderConnectionPoint providerConnectionPoint,
WebPart consumer, ConsumerConnectionPoint consumerConnectionPoint,
WebPartTransformer transformer, bool throwOnError) {
if (!Personalization.IsModifiable) {
if (throwOnError) {
// Will throw appropriate exception
Personalization.EnsureEnabled(/* ensureModifiable */ true);
}
else {
return false;
}
}
if (provider == null) {
throw new ArgumentNullException("provider");
}
if (!Controls.Contains(provider)) {
throw new ArgumentException(SR.GetString(SR.UnknownWebPart), "provider");
}
if (consumer == null) {
throw new ArgumentNullException("consumer");
}
if (!Controls.Contains(consumer)) {
throw new ArgumentException(SR.GetString(SR.UnknownWebPart), "consumer");
}
if (providerConnectionPoint == null) {
throw new ArgumentNullException("providerConnectionPoint");
}
if (consumerConnectionPoint == null) {
throw new ArgumentNullException("consumerConnectionPoint");
}
Control providerControl = provider.ToControl();
Control consumerControl = consumer.ToControl();
if (providerConnectionPoint.ControlType != providerControl.GetType()) {
throw new ArgumentException(SR.GetString(SR.WebPartManager_InvalidConnectionPoint), "providerConnectionPoint");
}
if (consumerConnectionPoint.ControlType != consumerControl.GetType()) {
throw new ArgumentException(SR.GetString(SR.WebPartManager_InvalidConnectionPoint), "consumerConnectionPoint");
}
if (provider == consumer) {
if (throwOnError) {
throw new InvalidOperationException(SR.GetString(SR.WebPartManager_CantConnectToSelf));
}
else {
return false;
}
}
if (provider.IsClosed) {
if (throwOnError) {
throw new InvalidOperationException(SR.GetString(SR.WebPartManager_CantConnectClosed, provider.ID));
}
else {
return false;
}
}
if (consumer.IsClosed) {
if (throwOnError) {
throw new InvalidOperationException(SR.GetString(SR.WebPartManager_CantConnectClosed, consumer.ID));
}
else {
return false;
}
}
if (!providerConnectionPoint.GetEnabled(providerControl)) {
if (throwOnError) {
throw new InvalidOperationException(SR.GetString(SR.WebPartConnection_DisabledConnectionPoint, providerConnectionPoint.ID, provider.ID));
}
else {
return false;
}
}
if (!consumerConnectionPoint.GetEnabled(consumerControl)) {
if (throwOnError) {
throw new InvalidOperationException(SR.GetString(SR.WebPartConnection_DisabledConnectionPoint, consumerConnectionPoint.ID, consumer.ID));
}
else {
return false;
}
}
// Check AllowsMultipleConnections on each ConnectionPoint
if (!providerConnectionPoint.AllowsMultipleConnections) {
foreach (WebPartConnection c in Connections) {
if (c.Provider == provider && c.ProviderConnectionPoint == providerConnectionPoint) {
if (throwOnError) {
throw new InvalidOperationException(SR.GetString(SR.WebPartConnection_Duplicate, providerConnectionPoint.ID, provider.ID));
}
else {
return false;
}
}
}
}
if (!consumerConnectionPoint.AllowsMultipleConnections) {
foreach (WebPartConnection c in Connections) {
if (c.Consumer == consumer && c.ConsumerConnectionPoint == consumerConnectionPoint) {
if (throwOnError) {
throw new InvalidOperationException(SR.GetString(SR.WebPartConnection_Duplicate, consumerConnectionPoint.ID, consumer.ID));
}
else {
return false;
}
}
}
}
if (transformer == null) {
if (providerConnectionPoint.InterfaceType != consumerConnectionPoint.InterfaceType) {
if (throwOnError) {
throw new InvalidOperationException(SR.GetString(SR.WebPartConnection_NoCommonInterface,
new string[] {providerConnectionPoint.DisplayName, provider.ID,
consumerConnectionPoint.DisplayName, consumer.ID}));
}
else {
return false;
}
}
ConnectionInterfaceCollection secondaryInterfaces = providerConnectionPoint.GetSecondaryInterfaces(providerControl);
if (!consumerConnectionPoint.SupportsConnection(consumerControl, secondaryInterfaces)) {
if (throwOnError) {
throw new InvalidOperationException(SR.GetString(SR.WebPartConnection_IncompatibleSecondaryInterfaces, new string[] {
consumerConnectionPoint.DisplayName, consumer.ID,
providerConnectionPoint.DisplayName, provider.ID}));
}
else {
return false;
}
}
}
else {
Type transformerType = transformer.GetType();
if (!AvailableTransformers.Contains(transformerType)) {
throw new InvalidOperationException(SR.GetString(SR.WebPartConnection_TransformerNotAvailable, transformerType.FullName));
}
// Check matching interfaces on connection points and transformer attribute.
// Note that we require the connection interfaces to match exactly. We do not match
// a derived interface type. This is because we want to simplify the interface matching
// algorithm when transformers are involved. If we allowed derived interfaces to match,
// then we would to take into account the "closest" match if multiple transformers
// have compatible interfaces.
Type transformerConsumerType = WebPartTransformerAttribute.GetConsumerType(transformerType);
Type transformerProviderType = WebPartTransformerAttribute.GetProviderType(transformerType);
if (providerConnectionPoint.InterfaceType != transformerConsumerType) {
if (throwOnError) {
throw new InvalidOperationException(SR.GetString(SR.WebPartConnection_IncompatibleProviderTransformer,
providerConnectionPoint.DisplayName, provider.ID, transformerType.FullName));
}
else {
return false;
}
}
if (transformerProviderType != consumerConnectionPoint.InterfaceType) {
if (throwOnError) {
throw new InvalidOperationException(SR.GetString(SR.WebPartConnection_IncompatibleConsumerTransformer,
transformerType.FullName, consumerConnectionPoint.DisplayName, consumer.ID));
}
else {
return false;
}
}
// A transformer never provides any secondary interfaces
if (!consumerConnectionPoint.SupportsConnection(consumerControl, ConnectionInterfaceCollection.Empty)) {
if (throwOnError) {
throw new InvalidOperationException(SR.GetString(SR.WebPartConnection_ConsumerRequiresSecondaryInterfaces,
consumerConnectionPoint.DisplayName, consumer.ID));
}
else {
return false;
}
}
}
return true;
}
internal void Activate()
{
// This method should only be called on WebPartConnections in the WebPartManager, so
// _webPartManager should never be null.
Debug.Assert(_webPartManager != null);
Transformers.SetReadOnly();
WebPart providerWebPart = Provider;
// Cannot be null because Activate() is only called on valid Connections
Debug.Assert(providerWebPart != null);
WebPart consumerWebPart = Consumer;
// Cannot be null because Activate() is only called on valid Connections
Debug.Assert(consumerWebPart != null);
Control providerControl = providerWebPart.ToControl();
Control consumerControl = consumerWebPart.ToControl();
ProviderConnectionPoint providerConnectionPoint = ProviderConnectionPoint;
// Cannot be null because Activate() is only called on valid Connections
Debug.Assert(providerConnectionPoint != null);
if (!providerConnectionPoint.GetEnabled(providerControl))
{
consumerWebPart.SetConnectErrorMessage(SR.GetString(SR.WebPartConnection_DisabledConnectionPoint, providerConnectionPoint.DisplayName, providerWebPart.DisplayTitle));
return;
}
ConsumerConnectionPoint consumerConnectionPoint = ConsumerConnectionPoint;
// Cannot be null because Activate() is only called on valid Connections
Debug.Assert(consumerConnectionPoint != null);
if (!consumerConnectionPoint.GetEnabled(consumerControl))
{
consumerWebPart.SetConnectErrorMessage(SR.GetString(SR.WebPartConnection_DisabledConnectionPoint, consumerConnectionPoint.DisplayName, consumerWebPart.DisplayTitle));
return;
}
// Do not activate connections involving closed WebParts
if (!providerWebPart.IsClosed && !consumerWebPart.IsClosed)
{
WebPartTransformer transformer = Transformer;
if (transformer == null)
{
if (providerConnectionPoint.InterfaceType == consumerConnectionPoint.InterfaceType)
{
ConnectionInterfaceCollection secondaryInterfaces = providerConnectionPoint.GetSecondaryInterfaces(providerControl);
if (consumerConnectionPoint.SupportsConnection(consumerControl, secondaryInterfaces))
{
object dataObject = providerConnectionPoint.GetObject(providerControl);
consumerConnectionPoint.SetObject(consumerControl, dataObject);
_isActive = true;
}
else
{
consumerWebPart.SetConnectErrorMessage(SR.GetString(SR.WebPartConnection_IncompatibleSecondaryInterfaces, new string[] {
consumerConnectionPoint.DisplayName, consumerWebPart.DisplayTitle,
providerConnectionPoint.DisplayName, providerWebPart.DisplayTitle
}));
}
}
else
{
consumerWebPart.SetConnectErrorMessage(SR.GetString(SR.WebPartConnection_NoCommonInterface, new string[] {
providerConnectionPoint.DisplayName, providerWebPart.DisplayTitle,
consumerConnectionPoint.DisplayName, consumerWebPart.DisplayTitle
}));
}
}
else
{
Type transformerType = transformer.GetType();
if (!_webPartManager.AvailableTransformers.Contains(transformerType))
{
string errorMessage;
if (_webPartManager.Context != null && _webPartManager.Context.IsCustomErrorEnabled)
{
errorMessage = SR.GetString(SR.WebPartConnection_TransformerNotAvailable);
}
else
{
errorMessage = SR.GetString(SR.WebPartConnection_TransformerNotAvailableWithType, transformerType.FullName);
}
consumerWebPart.SetConnectErrorMessage(errorMessage);
//
}
// Check matching interfaces on connection points and transformer attribute
Type transformerConsumerType = WebPartTransformerAttribute.GetConsumerType(transformerType);
Type transformerProviderType = WebPartTransformerAttribute.GetProviderType(transformerType);
if (providerConnectionPoint.InterfaceType == transformerConsumerType &&
transformerProviderType == consumerConnectionPoint.InterfaceType)
{
// A transformer never provides any secondary interfaces
if (consumerConnectionPoint.SupportsConnection(consumerControl, ConnectionInterfaceCollection.Empty))
{
object dataObject = providerConnectionPoint.GetObject(providerControl);
object transformedObject = transformer.Transform(dataObject);
consumerConnectionPoint.SetObject(consumerControl, transformedObject);
_isActive = true;
}
else
{
consumerWebPart.SetConnectErrorMessage(SR.GetString(SR.WebPartConnection_ConsumerRequiresSecondaryInterfaces,
consumerConnectionPoint.DisplayName, consumerWebPart.DisplayTitle));
}
}
else if (providerConnectionPoint.InterfaceType != transformerConsumerType)
{
string errorMessage;
if (_webPartManager.Context != null && _webPartManager.Context.IsCustomErrorEnabled)
{
errorMessage = SR.GetString(SR.WebPartConnection_IncompatibleProviderTransformer,
providerConnectionPoint.DisplayName, providerWebPart.DisplayTitle);
}
else
{
errorMessage = SR.GetString(SR.WebPartConnection_IncompatibleProviderTransformerWithType,
providerConnectionPoint.DisplayName, providerWebPart.DisplayTitle, transformerType.FullName);
}
consumerWebPart.SetConnectErrorMessage(errorMessage);
}
else
{
string errorMessage;
if (_webPartManager.Context != null && _webPartManager.Context.IsCustomErrorEnabled)
{
errorMessage = SR.GetString(SR.WebPartConnection_IncompatibleConsumerTransformer,
consumerConnectionPoint.DisplayName, consumerWebPart.DisplayTitle);
}
else
{
errorMessage = SR.GetString(SR.WebPartConnection_IncompatibleConsumerTransformerWithType,
transformerType.FullName, consumerConnectionPoint.DisplayName, consumerWebPart.DisplayTitle);
}
consumerWebPart.SetConnectErrorMessage(errorMessage);
}
}
}
}