/// <summary>
/// 通过主键查找连接元素。
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public ConnectionElement FindConnection(IConnectionKey key)
{
//return this._connections.FirstOrDefault(el => el.From == key.From && el.To == key.To && el.Label == key.Label);
return this.FindConnection(key.From, key.To, key.Label);
}
bool IEquatable <IConnectionKey> .Equals(IConnectionKey other) => other == this || (other is INamedPipeKey otherClient &&
//private ModelingDesigner _designer;
//public BlockRelationCollection(ModelingDesigner designer)
//{
// _designer = designer;
//}
//public BlockRelation FindByKey(string from, string to, string label)
//{
// return this.FirstOrDefault(r => r.FromBlock == from && r.ToBlock == to && r.Label == label);
//}
/// <summary>
/// 通过连接键，查找指定的关系
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public BlockRelation FindByKey(IConnectionKey key)
{
return(this.FirstOrDefault(r => r.FromBlock == key.From && r.ToBlock == key.To && r.Label == key.Label));
}
/// <summary>
/// 通过主键查找连接元素。
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public ConnectionElement FindConnection(IConnectionKey key)
{
//return this._connections.FirstOrDefault(el => el.From == key.From && el.To == key.To && el.Label == key.Label);
return(this.FindConnection(key.From, key.To, key.Label));
}