/// <summary>
/// 获取一个元数据
/// </summary>
/// <typeparam name="T">元数据类型</typeparam>
/// <param name="name">元数据名称</param>
/// <param name="def">如果指定名称的元数据不存在则返回这个参数</param>
/// <returns>元数据值</returns>
public T GetMetadata <T>(string name, T def = default(T))
{
if (!Metadatas.ContainsKey(name))
{
return(def);
}
return((T)Metadatas[name]);
}
public string GetMetadata(string metadataName)
{
if (Metadatas == null)
{
return(null);
}
if (Metadatas.ContainsKey(metadataName))
{
return(Metadatas[metadataName]);
}
return(null);
}