internal virtual bool ExistsInFirst(TFirst value)
{
if (FirstToSecondDictionary.ContainsKey(value))
{
return(true);
}
return(false);
}
// *******************************************************************
/// <summary>
/// This method indicates wether a value exists as a 1st relation.
/// </summary>
/// <param name="value">The value to use for the operation.</param>
/// <returns>true if the value exists; false otherwise.</returns>
public virtual bool ExistsInFirst(
TFirst value
)
{
// Validate the parameter before attempting to use it.
new Guard().ThrowIfNull(value, nameof(value));
// Does the value exist in the internal dictionary?
if (FirstToSecondDictionary.ContainsKey(value))
{
return(true);
}
// Not there.
return(false);
}