/// <summary>
/// Tries to get a one-dimensional index property of a Type.
/// </summary>
/// <param name="T">Type</param>
/// <param name="PropertyInfo">Property information of index property.</param>
/// <param name="Parameters">Parameter definitions of index property.</param>
/// <returns>If a one-dimensional index property was found.</returns>
public static bool TryGetIndexProperty(Type T, out PropertyInfo PropertyInfo, out ParameterInfo[] Parameters)
{
lock (indexProperties)
{
if (indexProperties.TryGetValue(T, out KeyValuePair <PropertyInfo, ParameterInfo[]> P))
{
PropertyInfo = P.Key;
Parameters = P.Value;
return(true);
}
foreach (PropertyInfo P2 in T.GetRuntimeProperties())
{
if (P2.Name != "Item")
{
continue;
}
Parameters = P2.GetIndexParameters();
if (Parameters is null || Parameters.Length != 1)
{
continue;
}
indexProperties[T] = new KeyValuePair <PropertyInfo, ParameterInfo[]>(P2, Parameters);
PropertyInfo = P2;
return(true);
}
}
PropertyInfo = null;
Parameters = null;
return(false);
}
