public long?Bind(long QQ, long uid, string source)
{
long?previous;
lock (BindData)
{
try
{
previous = BindData[QQ].Uid;
BindData[QQ] = new BindingData(uid, source);
}
catch (KeyNotFoundException)
{
previous = null;
BindData.Add(QQ, new BindingData(uid, source));
}
}
CommitBind();
return(previous);
}
