public ConnectionsZone() : base(WebPartManager.ConnectDisplayMode)
{
this._mode = ConnectionsZoneMode.ExistingConnections;
this._pendingConnectionPointID = string.Empty;
this._pendingConnectionType = ConnectionType.None;
this._pendingSelectedValue = null;
this._pendingConsumerID = string.Empty;
}
private bool EnsurePendingData() {
if (WebPartToConnect == null) {
ClearPendingConnection();
_mode = ConnectionsZoneMode.ExistingConnections;
return false;
}
if ((_pendingConsumer != null) &&
(_pendingConsumerConnectionPoint == null ||
_pendingProvider == null ||
_pendingProviderConnectionPoint == null)) {
DisplayConnectionError();
return false;
}
if (_pendingConnectionType == ConnectionType.Provider) {
Debug.Assert(_pendingSelectedValue != null);
_pendingProvider = WebPartToConnect;
_pendingProviderConnectionPoint =
WebPartManager.GetProviderConnectionPoint(WebPartToConnect, _pendingConnectionPointID);
if (_pendingProviderConnectionPoint == null) {
DisplayConnectionError();
return false;
}
IDictionary consumers = (IDictionary)_connectionPointInfo[_pendingProviderConnectionPoint];
ConsumerInfo consumerInfo = null;
if (consumers != null) {
consumerInfo = (ConsumerInfo)consumers[_pendingSelectedValue];
}
if (consumerInfo == null) {
DisplayConnectionError();
return false;
}
_pendingConsumer = consumerInfo.WebPart;
_pendingConsumerConnectionPoint = consumerInfo.ConnectionPoint;
return true;
}
string consumerID = _pendingConsumerID;
if (_pendingConnectionType == ConnectionType.Consumer) {
if (!String.IsNullOrEmpty(_pendingConnectionID)) {
// Editing an existing connection
WebPartConnection connection = WebPartManager.Connections[_pendingConnectionID];
if (connection != null) {
_pendingConnectionPointID = connection.ConsumerConnectionPointID;
_pendingConsumer = connection.Consumer;
_pendingConsumerConnectionPoint = connection.ConsumerConnectionPoint;
_pendingConsumerID = connection.Consumer.ID;
_pendingProvider = connection.Provider;
_pendingProviderConnectionPoint = connection.ProviderConnectionPoint;
_pendingTransformer = connection.Transformer;
_pendingSelectedValue = null;
_pendingConnectionType = ConnectionType.Consumer;
return true;
}
DisplayConnectionError();
return false;
}
if (String.IsNullOrEmpty(consumerID)) {
_pendingConsumer = WebPartToConnect;
}
else {
_pendingConsumer = WebPartManager.WebParts[consumerID];
}
_pendingConsumerConnectionPoint =
WebPartManager.GetConsumerConnectionPoint(_pendingConsumer, _pendingConnectionPointID);
if (_pendingConsumerConnectionPoint == null) {
DisplayConnectionError();
return false;
}
// Get provider
if (!String.IsNullOrEmpty(_pendingSelectedValue)) {
IDictionary providers = (IDictionary)_connectionPointInfo[_pendingConsumerConnectionPoint];
ProviderInfo providerInfo = null;
if (providers != null) {
providerInfo = (ProviderInfo)providers[_pendingSelectedValue];
}
if (providerInfo == null) {
DisplayConnectionError();
return false;
}
_pendingProvider = providerInfo.WebPart;
_pendingProviderConnectionPoint = providerInfo.ConnectionPoint;
}
return true;
}
else {
// No pending connection
Debug.Assert(_pendingConnectionType == ConnectionType.None);
ClearPendingConnection();
return false;
}
}
private void ConnectProvider(string providerConnectionPointID) {
// We don't need to check for AllowConnect on the parts because we're already checking
// that the data was in the drop-downs in the first place, and these check for AllowConnect.
WebPart provider = WebPartToConnect;
if (provider == null || provider.IsClosed) {
DisplayConnectionError();
return;
}
ProviderConnectionPoint providerConnectionPoint =
WebPartManager.GetProviderConnectionPoint(provider, providerConnectionPointID);
if (providerConnectionPoint == null) {
DisplayConnectionError();
return;
}
EnsureChildControls();
if (_connectDropDownLists == null ||
!_connectDropDownLists.Contains(providerConnectionPoint) ||
_connectionPointInfo == null ||
!_connectionPointInfo.Contains(providerConnectionPoint)) {
DisplayConnectionError();
return;
}
DropDownList list = (DropDownList)_connectDropDownLists[providerConnectionPoint];
// Using Request instead of the control's selected value because some concurrency
// conditions exist under which the selected item does not exist any more in the list.
// In this case, we want to display a connection error (VSWhidbey 368543)
string selectedValue = Page.Request.Form[list.UniqueID];
if (!String.IsNullOrEmpty(selectedValue)) {
IDictionary consumers = (IDictionary)_connectionPointInfo[providerConnectionPoint];
if (consumers == null || !consumers.Contains(selectedValue)) {
DisplayConnectionError();
return;
}
ConsumerInfo consumer = (ConsumerInfo)consumers[selectedValue];
Type transformerType = consumer.TransformerType;
if (transformerType != null) {
Debug.Assert(transformerType.IsSubclassOf(typeof(WebPartTransformer)));
WebPartTransformer transformer =
(WebPartTransformer)WebPartUtil.CreateObjectFromType(transformerType);
if (GetConfigurationControl(transformer) == null) {
if (WebPartManager.CanConnectWebParts(provider, providerConnectionPoint,
consumer.WebPart, consumer.ConnectionPoint, transformer)) {
WebPartManager.ConnectWebParts(provider, providerConnectionPoint,
consumer.WebPart, consumer.ConnectionPoint, transformer);
}
else {
DisplayConnectionError();
}
Reset();
}
else {
// Control will be created and added on next call to CreateChildControls
_pendingConnectionType = ConnectionType.Provider;
_pendingConnectionPointID = providerConnectionPointID;
_pendingSelectedValue = selectedValue;
_mode = ConnectionsZoneMode.ConfiguringTransformer;
ChildControlsCreated = false;
}
}
else {
if (WebPartManager.CanConnectWebParts(provider, providerConnectionPoint,
consumer.WebPart, consumer.ConnectionPoint)) {
WebPartManager.ConnectWebParts(provider, providerConnectionPoint,
consumer.WebPart, consumer.ConnectionPoint);
}
else {
DisplayConnectionError();
}
Reset();
}
// Reset the list to the blank selection
list.SelectedValue = null;
}
}
private void SetDropDownProperties() {
bool anyRelevantControl = false;
WebPart webPartToConnect = WebPartToConnect;
if (webPartToConnect != null && !webPartToConnect.IsClosed) {
Debug.Assert(WebPartManager != null);
WebPartCollection webParts = WebPartManager.WebParts;
ProviderConnectionPointCollection providerConnectionPoints =
WebPartManager.GetEnabledProviderConnectionPoints(webPartToConnect);
foreach (ProviderConnectionPoint providerConnectionPoint in providerConnectionPoints) {
DropDownList list = (DropDownList)_connectDropDownLists[providerConnectionPoint];
if (list == null) {
continue;
}
list.Items.Clear();
// Set the selected index to 0, in case it was set by ControlState
list.SelectedIndex = 0;
IDictionary consumers = GetValidConsumers(webPartToConnect, providerConnectionPoint, webParts);
if (consumers.Count == 0) {
list.Enabled = false;
list.Items.Add(new ListItem(SR.GetString(SR.ConnectionsZone_NoConsumers), String.Empty));
}
else {
list.Enabled = true;
list.Items.Add(new ListItem());
_connectionPointInfo[providerConnectionPoint] = consumers;
// If the WebPart is currently connected on this provider point
// and does not support multiple connections,
// select the current provider and disable the dropdown.
WebPartConnection currentConnection = providerConnectionPoint.AllowsMultipleConnections ?
null :
WebPartManager.GetConnectionForProvider(webPartToConnect, providerConnectionPoint);
WebPart currentConsumerWebPart = null;
ConsumerConnectionPoint currentConsumerConnectionPoint = null;
if (currentConnection != null) {
currentConsumerWebPart = currentConnection.Consumer;
currentConsumerConnectionPoint = currentConnection.ConsumerConnectionPoint;
list.Enabled = false;
}
else {
anyRelevantControl = true;
}
foreach (DictionaryEntry consumerEntry in consumers) {
ConsumerInfo consumer = (ConsumerInfo)consumerEntry.Value;
ListItem item = new ListItem();
item.Text = GetDisplayTitle(consumer.WebPart, consumer.ConnectionPoint, true);
item.Value = (string)consumerEntry.Key;
if (currentConnection != null &&
consumer.WebPart == currentConsumerWebPart &&
consumer.ConnectionPoint == currentConsumerConnectionPoint) {
item.Selected = true;
}
list.Items.Add(item);
}
}
}
ConsumerConnectionPointCollection consumerConnectionPoints =
WebPartManager.GetEnabledConsumerConnectionPoints(webPartToConnect);
foreach (ConsumerConnectionPoint consumerConnectionPoint in consumerConnectionPoints) {
DropDownList list = (DropDownList)_connectDropDownLists[consumerConnectionPoint];
if (list == null) {
continue;
}
list.Items.Clear();
// Set the selected index to 0, in case it was set by ControlState
list.SelectedIndex = 0;
IDictionary providers = GetValidProviders(webPartToConnect, consumerConnectionPoint, webParts);
if (providers.Count == 0) {
list.Enabled = false;
list.Items.Add(new ListItem(SR.GetString(SR.ConnectionsZone_NoProviders), String.Empty));
}
else {
list.Enabled = true;
list.Items.Add(new ListItem());
_connectionPointInfo[consumerConnectionPoint] = providers;
// If the WebPart is currently connected on this consumer point
// and does not support multiple connections,
// select the current provider and disable the dropdown.
WebPartConnection currentConnection = consumerConnectionPoint.AllowsMultipleConnections ?
null :
WebPartManager.GetConnectionForConsumer(webPartToConnect, consumerConnectionPoint);
WebPart currentProviderWebPart = null;
ProviderConnectionPoint currentProviderConnectionPoint = null;
if (currentConnection != null) {
currentProviderWebPart = currentConnection.Provider;
currentProviderConnectionPoint = currentConnection.ProviderConnectionPoint;
list.Enabled = false;
}
else {
anyRelevantControl = true;
}
foreach (DictionaryEntry providerEntry in providers) {
ProviderInfo provider = (ProviderInfo)providerEntry.Value;
ListItem item = new ListItem();
item.Text = GetDisplayTitle(provider.WebPart, provider.ConnectionPoint, false);
item.Value = (string)providerEntry.Key;
if (currentConnection != null &&
provider.WebPart == currentProviderWebPart &&
provider.ConnectionPoint == currentProviderConnectionPoint) {
item.Selected = true;
}
list.Items.Add(item);
}
}
}
if (_pendingConnectionType == ConnectionType.Consumer &&
_pendingSelectedValue != null &&
_pendingSelectedValue.Length > 0) {
EnsurePendingData();
if (_pendingConsumerConnectionPoint != null) {
// Display the pending connection in the appropriate DropDownList
Debug.Assert(_pendingSelectedValue != null);
DropDownList list = (DropDownList)_connectDropDownLists[_pendingConsumerConnectionPoint];
if (list == null) {
_mode = ConnectionsZoneMode.ExistingConnections;
return;
}
SelectValueInList(list, _pendingSelectedValue);
}
else {
_mode = ConnectionsZoneMode.ExistingConnections;
return;
}
}
else if (_pendingConnectionType == ConnectionType.Provider) {
EnsurePendingData();
if (_pendingProviderConnectionPoint != null) {
// Display the pending connection in the appropriate DropDownList
Debug.Assert(_pendingSelectedValue != null);
DropDownList list = (DropDownList)_connectDropDownLists[_pendingProviderConnectionPoint];
if (list == null) {
_mode = ConnectionsZoneMode.ExistingConnections;
return;
}
SelectValueInList(list, _pendingSelectedValue);
}
else {
_mode = ConnectionsZoneMode.ExistingConnections;
return;
}
}
if (!anyRelevantControl &&
(_mode == ConnectionsZoneMode.ConnectToConsumer ||
_mode == ConnectionsZoneMode.ConnectToProvider)) {
_mode = ConnectionsZoneMode.ExistingConnections;
}
}
}
private void Reset() {
ClearPendingConnection();
ChildControlsCreated = false;
_mode = ConnectionsZoneMode.ExistingConnections;
}
protected override void RaisePostBackEvent(string eventArgument) {
if (WebPartToConnect == null) {
ClearPendingConnection();
_mode = ConnectionsZoneMode.ExistingConnections;
return;
}
string[] eventArguments = eventArgument.Split(ID_SEPARATOR);
if (eventArguments.Length == 2 &&
String.Equals(eventArguments[0], disconnectEventArgument, StringComparison.OrdinalIgnoreCase)) {
// Disconnecting
if (DisconnectVerb.Visible && DisconnectVerb.Enabled) {
string connectionID = eventArguments[1];
Disconnect(connectionID);
_mode = ConnectionsZoneMode.ExistingConnections;
}
}
else if (eventArguments.Length == 3 &&
String.Equals(eventArguments[0], connectEventArgument, StringComparison.OrdinalIgnoreCase)) {
// Connecting
if (ConnectVerb.Visible && ConnectVerb.Enabled) {
string connectionPointID = eventArguments[2];
if (String.Equals(eventArguments[1], providerEventArgument, StringComparison.OrdinalIgnoreCase)) {
ConnectProvider(connectionPointID);
}
else {
ConnectConsumer(connectionPointID);
}
}
}
else if (eventArguments.Length == 2 &&
String.Equals(eventArguments[0], configureEventArgument, StringComparison.OrdinalIgnoreCase)) {
// Displaying transformer UI
_pendingConnectionID = eventArguments[1];
_pendingConnectionType = ConnectionType.Consumer;
_mode = ConnectionsZoneMode.ConfiguringTransformer;
}
else if (String.Equals(eventArgument, connectConsumerEventArgument, StringComparison.OrdinalIgnoreCase)) {
// Create connection to consumer
_mode = ConnectionsZoneMode.ConnectToConsumer;
}
else if (String.Equals(eventArgument, connectProviderEventArgument, StringComparison.OrdinalIgnoreCase)) {
// Create connection to provider
_mode = ConnectionsZoneMode.ConnectToProvider;
}
else if (String.Equals(eventArgument, closeEventArgument, StringComparison.OrdinalIgnoreCase)) {
// Closing the zone
if (CloseVerb.Visible && CloseVerb.Enabled) {
Close();
_mode = ConnectionsZoneMode.ExistingConnections;
}
}
else if (String.Equals(eventArgument, cancelEventArgument, StringComparison.OrdinalIgnoreCase)) {
// Cancelling connection creation
if (CancelVerb.Visible && CancelVerb.Enabled) {
_mode = ConnectionsZoneMode.ExistingConnections;
}
}
else {
base.RaisePostBackEvent(eventArgument);
}
}
protected internal override void LoadControlState(object savedState) {
if (savedState != null) {
object[] state = (object[])savedState;
if (state.Length != controlStateArrayLength) {
throw new ArgumentException(SR.GetString(SR.Invalid_ControlState));
}
base.LoadControlState(state[baseIndex]);
if (state[modeIndex] != null) {
_mode = (ConnectionsZoneMode)state[modeIndex];
}
if (state[pendingConnectionPointIDIndex] != null) {
_pendingConnectionPointID = (string)state[pendingConnectionPointIDIndex];
}
if (state[pendingConnectionTypeIndex] != null) {
_pendingConnectionType = (ConnectionType)state[pendingConnectionTypeIndex];
}
if (state[pendingSelectedValueIndex] != null) {
_pendingSelectedValue = (string)state[pendingSelectedValueIndex];
}
if (state[pendingConsumerIDIndex] != null) {
_pendingConsumerID = (string)state[pendingConsumerIDIndex];
}
if (state[pendingTransformerTypeNameIndex] != null) {
_pendingTransformerConfigurationControlTypeName = (string)state[pendingTransformerTypeNameIndex];
}
if (state[pendingConnectionIDIndex] != null) {
_pendingConnectionID = (string)state[pendingConnectionIDIndex];
}
}
else {
base.LoadControlState(null);
}
}
private void ConnectConsumer(string consumerConnectionPointID)
{
WebPart webPartToConnect = this.WebPartToConnect;
if ((webPartToConnect == null) || webPartToConnect.IsClosed)
{
this.DisplayConnectionError();
}
else
{
ConsumerConnectionPoint consumerConnectionPoint = base.WebPartManager.GetConsumerConnectionPoint(webPartToConnect, consumerConnectionPointID);
if (consumerConnectionPoint == null)
{
this.DisplayConnectionError();
}
else
{
this.EnsureChildControls();
if (((this._connectDropDownLists == null) || !this._connectDropDownLists.Contains(consumerConnectionPoint)) || ((this._connectionPointInfo == null) || !this._connectionPointInfo.Contains(consumerConnectionPoint)))
{
this.DisplayConnectionError();
}
else
{
DropDownList list = (DropDownList) this._connectDropDownLists[consumerConnectionPoint];
string str = this.Page.Request.Form[list.UniqueID];
if (!string.IsNullOrEmpty(str))
{
IDictionary dictionary = (IDictionary) this._connectionPointInfo[consumerConnectionPoint];
if ((dictionary == null) || !dictionary.Contains(str))
{
this.DisplayConnectionError();
}
else
{
ProviderInfo info = (ProviderInfo) dictionary[str];
Type transformerType = info.TransformerType;
if (transformerType != null)
{
WebPartTransformer transformer = (WebPartTransformer) WebPartUtil.CreateObjectFromType(transformerType);
if (this.GetConfigurationControl(transformer) == null)
{
if (base.WebPartManager.CanConnectWebParts(info.WebPart, info.ConnectionPoint, webPartToConnect, consumerConnectionPoint, transformer))
{
base.WebPartManager.ConnectWebParts(info.WebPart, info.ConnectionPoint, webPartToConnect, consumerConnectionPoint, transformer);
}
else
{
this.DisplayConnectionError();
}
this.Reset();
}
else
{
this._pendingConnectionType = ConnectionType.Consumer;
this._pendingConnectionPointID = consumerConnectionPointID;
this._pendingSelectedValue = str;
this._mode = ConnectionsZoneMode.ConfiguringTransformer;
base.ChildControlsCreated = false;
}
}
else
{
if (base.WebPartManager.CanConnectWebParts(info.WebPart, info.ConnectionPoint, webPartToConnect, consumerConnectionPoint))
{
base.WebPartManager.ConnectWebParts(info.WebPart, info.ConnectionPoint, webPartToConnect, consumerConnectionPoint);
}
else
{
this.DisplayConnectionError();
}
this.Reset();
}
list.SelectedValue = null;
}
}
}
}
}
}
protected override void RaisePostBackEvent(string eventArgument)
{
if (this.WebPartToConnect == null)
{
this.ClearPendingConnection();
this._mode = ConnectionsZoneMode.ExistingConnections;
}
else
{
string[] strArray = eventArgument.Split(new char[] { '$' });
if ((strArray.Length == 2) && string.Equals(strArray[0], "disconnect", StringComparison.OrdinalIgnoreCase))
{
if (this.DisconnectVerb.Visible && this.DisconnectVerb.Enabled)
{
string connectionID = strArray[1];
this.Disconnect(connectionID);
this._mode = ConnectionsZoneMode.ExistingConnections;
}
}
else if ((strArray.Length == 3) && string.Equals(strArray[0], "connect", StringComparison.OrdinalIgnoreCase))
{
if (this.ConnectVerb.Visible && this.ConnectVerb.Enabled)
{
string providerConnectionPointID = strArray[2];
if (string.Equals(strArray[1], "provider", StringComparison.OrdinalIgnoreCase))
{
this.ConnectProvider(providerConnectionPointID);
}
else
{
this.ConnectConsumer(providerConnectionPointID);
}
}
}
else if ((strArray.Length == 2) && string.Equals(strArray[0], "edit", StringComparison.OrdinalIgnoreCase))
{
this._pendingConnectionID = strArray[1];
this._pendingConnectionType = ConnectionType.Consumer;
this._mode = ConnectionsZoneMode.ConfiguringTransformer;
}
else if (string.Equals(eventArgument, "connectconsumer", StringComparison.OrdinalIgnoreCase))
{
this._mode = ConnectionsZoneMode.ConnectToConsumer;
}
else if (string.Equals(eventArgument, "connectprovider", StringComparison.OrdinalIgnoreCase))
{
this._mode = ConnectionsZoneMode.ConnectToProvider;
}
else if (string.Equals(eventArgument, "close", StringComparison.OrdinalIgnoreCase))
{
if (this.CloseVerb.Visible && this.CloseVerb.Enabled)
{
this.Close();
this._mode = ConnectionsZoneMode.ExistingConnections;
}
}
else if (string.Equals(eventArgument, "cancel", StringComparison.OrdinalIgnoreCase))
{
if (this.CancelVerb.Visible && this.CancelVerb.Enabled)
{
this._mode = ConnectionsZoneMode.ExistingConnections;
}
}
else
{
base.RaisePostBackEvent(eventArgument);
}
}
}
protected internal override void LoadControlState(object savedState)
{
if (savedState != null)
{
object[] objArray = (object[]) savedState;
if (objArray.Length != 8)
{
throw new ArgumentException(System.Web.SR.GetString("Invalid_ControlState"));
}
base.LoadControlState(objArray[0]);
if (objArray[1] != null)
{
this._mode = (ConnectionsZoneMode) objArray[1];
}
if (objArray[2] != null)
{
this._pendingConnectionPointID = (string) objArray[2];
}
if (objArray[3] != null)
{
this._pendingConnectionType = (ConnectionType) objArray[3];
}
if (objArray[4] != null)
{
this._pendingSelectedValue = (string) objArray[4];
}
if (objArray[5] != null)
{
this._pendingConsumerID = (string) objArray[5];
}
if (objArray[6] != null)
{
this._pendingTransformerConfigurationControlTypeName = (string) objArray[6];
}
if (objArray[7] != null)
{
this._pendingConnectionID = (string) objArray[7];
}
}
else
{
base.LoadControlState(null);
}
}
private bool EnsurePendingData()
{
if (this.WebPartToConnect == null)
{
this.ClearPendingConnection();
this._mode = ConnectionsZoneMode.ExistingConnections;
return false;
}
if ((this._pendingConsumer != null) && (((this._pendingConsumerConnectionPoint == null) || (this._pendingProvider == null)) || (this._pendingProviderConnectionPoint == null)))
{
this.DisplayConnectionError();
return false;
}
if (this._pendingConnectionType == ConnectionType.Provider)
{
this._pendingProvider = this.WebPartToConnect;
this._pendingProviderConnectionPoint = base.WebPartManager.GetProviderConnectionPoint(this.WebPartToConnect, this._pendingConnectionPointID);
if (this._pendingProviderConnectionPoint == null)
{
this.DisplayConnectionError();
return false;
}
IDictionary dictionary = (IDictionary) this._connectionPointInfo[this._pendingProviderConnectionPoint];
ConsumerInfo info = null;
if (dictionary != null)
{
info = (ConsumerInfo) dictionary[this._pendingSelectedValue];
}
if (info == null)
{
this.DisplayConnectionError();
return false;
}
this._pendingConsumer = info.WebPart;
this._pendingConsumerConnectionPoint = info.ConnectionPoint;
return true;
}
string str = this._pendingConsumerID;
if (this._pendingConnectionType == ConnectionType.Consumer)
{
if (!string.IsNullOrEmpty(this._pendingConnectionID))
{
WebPartConnection connection = base.WebPartManager.Connections[this._pendingConnectionID];
if (connection != null)
{
this._pendingConnectionPointID = connection.ConsumerConnectionPointID;
this._pendingConsumer = connection.Consumer;
this._pendingConsumerConnectionPoint = connection.ConsumerConnectionPoint;
this._pendingConsumerID = connection.Consumer.ID;
this._pendingProvider = connection.Provider;
this._pendingProviderConnectionPoint = connection.ProviderConnectionPoint;
this._pendingTransformer = connection.Transformer;
this._pendingSelectedValue = null;
this._pendingConnectionType = ConnectionType.Consumer;
return true;
}
this.DisplayConnectionError();
return false;
}
if (string.IsNullOrEmpty(str))
{
this._pendingConsumer = this.WebPartToConnect;
}
else
{
this._pendingConsumer = base.WebPartManager.WebParts[str];
}
this._pendingConsumerConnectionPoint = base.WebPartManager.GetConsumerConnectionPoint(this._pendingConsumer, this._pendingConnectionPointID);
if (this._pendingConsumerConnectionPoint == null)
{
this.DisplayConnectionError();
return false;
}
if (!string.IsNullOrEmpty(this._pendingSelectedValue))
{
IDictionary dictionary2 = (IDictionary) this._connectionPointInfo[this._pendingConsumerConnectionPoint];
ProviderInfo info2 = null;
if (dictionary2 != null)
{
info2 = (ProviderInfo) dictionary2[this._pendingSelectedValue];
}
if (info2 == null)
{
this.DisplayConnectionError();
return false;
}
this._pendingProvider = info2.WebPart;
this._pendingProviderConnectionPoint = info2.ConnectionPoint;
}
return true;
}
this.ClearPendingConnection();
return false;
}
private void SetDropDownProperties()
{
bool flag = false;
WebPart webPartToConnect = this.WebPartToConnect;
if ((webPartToConnect != null) && !webPartToConnect.IsClosed)
{
WebPartCollection webParts = base.WebPartManager.WebParts;
foreach (ProviderConnectionPoint point in base.WebPartManager.GetEnabledProviderConnectionPoints(webPartToConnect))
{
DropDownList list = (DropDownList) this._connectDropDownLists[point];
if (list != null)
{
list.Items.Clear();
list.SelectedIndex = 0;
IDictionary dictionary = this.GetValidConsumers(webPartToConnect, point, webParts);
if (dictionary.Count == 0)
{
list.Enabled = false;
list.Items.Add(new ListItem(System.Web.SR.GetString("ConnectionsZone_NoConsumers"), string.Empty));
}
else
{
list.Enabled = true;
list.Items.Add(new ListItem());
this._connectionPointInfo[point] = dictionary;
WebPartConnection connection = point.AllowsMultipleConnections ? null : base.WebPartManager.GetConnectionForProvider(webPartToConnect, point);
WebPart consumer = null;
ConsumerConnectionPoint consumerConnectionPoint = null;
if (connection != null)
{
consumer = connection.Consumer;
consumerConnectionPoint = connection.ConsumerConnectionPoint;
list.Enabled = false;
}
else
{
flag = true;
}
foreach (DictionaryEntry entry in dictionary)
{
ConsumerInfo info = (ConsumerInfo) entry.Value;
ListItem item = new ListItem {
Text = this.GetDisplayTitle(info.WebPart, info.ConnectionPoint, true),
Value = (string) entry.Key
};
if (((connection != null) && (info.WebPart == consumer)) && (info.ConnectionPoint == consumerConnectionPoint))
{
item.Selected = true;
}
list.Items.Add(item);
}
}
}
}
foreach (ConsumerConnectionPoint point3 in base.WebPartManager.GetEnabledConsumerConnectionPoints(webPartToConnect))
{
DropDownList list2 = (DropDownList) this._connectDropDownLists[point3];
if (list2 != null)
{
list2.Items.Clear();
list2.SelectedIndex = 0;
IDictionary dictionary2 = this.GetValidProviders(webPartToConnect, point3, webParts);
if (dictionary2.Count == 0)
{
list2.Enabled = false;
list2.Items.Add(new ListItem(System.Web.SR.GetString("ConnectionsZone_NoProviders"), string.Empty));
}
else
{
list2.Enabled = true;
list2.Items.Add(new ListItem());
this._connectionPointInfo[point3] = dictionary2;
WebPartConnection connection2 = point3.AllowsMultipleConnections ? null : base.WebPartManager.GetConnectionForConsumer(webPartToConnect, point3);
WebPart provider = null;
ProviderConnectionPoint providerConnectionPoint = null;
if (connection2 != null)
{
provider = connection2.Provider;
providerConnectionPoint = connection2.ProviderConnectionPoint;
list2.Enabled = false;
}
else
{
flag = true;
}
foreach (DictionaryEntry entry2 in dictionary2)
{
ProviderInfo info2 = (ProviderInfo) entry2.Value;
ListItem item2 = new ListItem {
Text = this.GetDisplayTitle(info2.WebPart, info2.ConnectionPoint, false),
Value = (string) entry2.Key
};
if (((connection2 != null) && (info2.WebPart == provider)) && (info2.ConnectionPoint == providerConnectionPoint))
{
item2.Selected = true;
}
list2.Items.Add(item2);
}
}
}
}
if (((this._pendingConnectionType == ConnectionType.Consumer) && (this._pendingSelectedValue != null)) && (this._pendingSelectedValue.Length > 0))
{
this.EnsurePendingData();
if (this._pendingConsumerConnectionPoint == null)
{
this._mode = ConnectionsZoneMode.ExistingConnections;
return;
}
DropDownList list3 = (DropDownList) this._connectDropDownLists[this._pendingConsumerConnectionPoint];
if (list3 == null)
{
this._mode = ConnectionsZoneMode.ExistingConnections;
return;
}
this.SelectValueInList(list3, this._pendingSelectedValue);
}
else if (this._pendingConnectionType == ConnectionType.Provider)
{
this.EnsurePendingData();
if (this._pendingProviderConnectionPoint == null)
{
this._mode = ConnectionsZoneMode.ExistingConnections;
return;
}
DropDownList list4 = (DropDownList) this._connectDropDownLists[this._pendingProviderConnectionPoint];
if (list4 == null)
{
this._mode = ConnectionsZoneMode.ExistingConnections;
return;
}
this.SelectValueInList(list4, this._pendingSelectedValue);
}
if (!flag && ((this._mode == ConnectionsZoneMode.ConnectToConsumer) || (this._mode == ConnectionsZoneMode.ConnectToProvider)))
{
this._mode = ConnectionsZoneMode.ExistingConnections;
}
}
}
private void Reset()
{
this.ClearPendingConnection();
base.ChildControlsCreated = false;
this._mode = ConnectionsZoneMode.ExistingConnections;
}
