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//------------------------------------------------------------------------------
// <copyright file="ConnectionConsumerAttribute.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.UI.WebControls.WebParts {
using System;
using System.ComponentModel;
using System.Reflection;
[AttributeUsage(AttributeTargets.Method)]
public class ConnectionConsumerAttribute : Attribute {
private string _displayName;
private string _id;
private Type _connectionPointType;
private bool _allowsMultipleConnections;
public ConnectionConsumerAttribute(string displayName) {
if (String.IsNullOrEmpty(displayName)) {
throw new ArgumentNullException("displayName");
}
_displayName = displayName;
_allowsMultipleConnections = false;
}
public ConnectionConsumerAttribute(string displayName, string id) : this(displayName) {
if (String.IsNullOrEmpty(id)) {
throw new ArgumentNullException("id");
}
_id = id;
}
public ConnectionConsumerAttribute(string displayName, Type connectionPointType) : this(displayName) {
if (connectionPointType == null) {
throw new ArgumentNullException("connectionPointType");
}
_connectionPointType = connectionPointType;
}
public ConnectionConsumerAttribute(string displayName, string id, Type connectionPointType) : this(displayName, connectionPointType) {
if (String.IsNullOrEmpty(id)) {
throw new ArgumentNullException("id");
}
_id = id;
}
public bool AllowsMultipleConnections {
get {
return _allowsMultipleConnections;
}
set {
_allowsMultipleConnections = value;
}
}
public string ID {
get {
return (_id != null) ? _id : String.Empty;
}
}
public virtual string DisplayName {
get {
return DisplayNameValue;
}
}
protected string DisplayNameValue {
get {
return _displayName;
}
set {
_displayName = value;
}
}
public Type ConnectionPointType {
get {
if (WebPartUtil.IsConnectionPointTypeValid(_connectionPointType, /*isConsumer*/ true)) {
return _connectionPointType;
}
else {
throw new InvalidOperationException(SR.GetString(SR.ConnectionConsumerAttribute_InvalidConnectionPointType, _connectionPointType.Name));
}
}
}
}
}
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