public void SearchByTxt(AutoCompleteTipsItem aItem)
{
//先在main中查找，如果有，切换焦点后返回
if (MainCanvas.ChangeSelectedByTxt(aItem) != null)
{
return;
}
//再在sub中查找，如果有，切换焦点后返回
if (SubCanvas.ChangeSelectedByTxt(aItem) != null)
{
MainCanvas.ClearSelected();
return;
}
//如果item精确对应到一个GUTag，直接使用该GUTag
GUTag tag = aItem.Data as GUTag;
if (tag == null)
{
List <GUTag> tags = TagDB.QueryTags(aItem.Content);
if (tags.Count > 0)
{
tag = tags[0];
}
}
//如果不在视图中，但数据库中存在，TODO：如何有效的切换？？是一个需要考虑的问题
if (tag != null)
{
GUTag mainRoot = TagDB.GetTag(StaticCfg.Ins.DefaultTagID);
GUTag subRoot = mainRoot;
GUTag subSel = subRoot;
List <GUTag> parents = QueryParentHistory(tag);
int cnt = parents.Count;
if (cnt > 0)
{
subSel = parents[0];
subRoot = parents[Math.Min(3, cnt - 1)];
mainRoot = parents[Math.Min(6, cnt - 1)];
}
ChangeRoot(mainRoot, subRoot, subSel);
}
//不存在精确匹配的tag
else
{
}
}