// 应该在删除前把事件发了
public void FireTreeRemoveEvents(string strXPath)
{
// 发自己的ItemDeleted事件
ItemDeletedEventArgs args =
new ItemDeletedEventArgs();
args.item = this;
args.XPath = strXPath;
// 每次按off算,外面需要时设为on
//args.RiseAttrsEvents = false;
//args.RecursiveChildEvents = false;
args.RiseAttrsEvents = true;
args.RecursiveChildEvents = true;
this.m_document.fireItemDeleted(this.m_document,args);
if (args.RiseAttrsEvents == true)
{
for(int i=0;i<this.attrs.Count;i++)
{
AttrItem attr = (AttrItem)this.attrs[i];
ItemDeletedEventArgs argsAttr =
new ItemDeletedEventArgs();
argsAttr.item = attr;
argsAttr.XPath = strXPath + "/@" + attr.Name + "";
// 每次按off算,外面需要时设为on
//argsAttr.RiseAttrsEvents = false;
//argsAttr.RecursiveChildEvents = false;
argsAttr.RiseAttrsEvents = true;
argsAttr.RecursiveChildEvents = true;
this.m_document.fireItemDeleted(this.m_document,argsAttr);
}
}
if (args.RecursiveChildEvents == true)
{
for(int i=0;i<this.children.Count;i++)
{
Item child = this.children[i];
if (child is ElementItem)
{
ElementItem element = (ElementItem)this.children[i];
string strPartXpath = ItemUtil.GetPartXpath(this,
element);
string strChildXPath = strXPath + "/" + strPartXpath;
element.FireTreeRemoveEvents(strChildXPath);
}
else
{
ItemDeletedEventArgs argsChild =
new ItemDeletedEventArgs();
argsChild.item = child;
argsChild.XPath = strXPath;
// 每次按off算,外面需要时设为on
//argsChild.RiseAttrsEvents = false;
//argsChild.RecursiveChildEvents = false;
argsChild.RiseAttrsEvents = true;
argsChild.RecursiveChildEvents = true;
this.m_document.fireItemDeleted(this.m_document,argsChild);
}
}
}
}
// 删属性
internal void RemoveAttrInternal(AttrItem attr,
bool bAddObjTimestamp)
{
Debug.Assert(attr != null,"RemoveAttr() attr不能为null,调用出错");
// 当前节点 不属于儿子集合
int nIndex = this.attrs.IndexOf(attr);
if (nIndex == -1)
{
Debug.Assert(false,"RemoveChild() attr不属于属性集合，调入出错");
return;
}
////////////////////////////////////////////////
// BeforeItemDelete
///////////////////////////////////////////////
string strXPath = attr.GetXPath(); // 先得到Xpath,否则删除后就没有了
BeforeItemDeleteEventArgs beforeArgs =
new BeforeItemDeleteEventArgs();
beforeArgs.item = attr;
this.m_document.fireBeforeItemDelete(this.m_document,beforeArgs);
// 把一些有用的初值设好，例如NamespaceURi
this.SetNamespaceURI((ElementAttrBase)attr);
attr.m_paraValue1 = attr.GetValue();
// 进行Remove操作
this.attrs.Remove(attr);
////////////////////////////////////////////////
// ItemDeleted
///////////////////////////////////////////////
ItemDeletedEventArgs args =
new ItemDeletedEventArgs();
args.item = attr;
args.XPath = strXPath;
// 每次按off算,外面需要时设为on
args.RiseAttrsEvents = false;
args.RecursiveChildEvents = false;
this.m_document.fireItemDeleted(this.m_document,args);
if (bAddObjTimestamp == true)
this.m_objAttrsTimestamp ++;
}
// 清除属性，里面会调ItemDeleted事件
public void ClearAttrs()
{
foreach(AttrItem attr in this.attrs)
{
string strXPath = this.GetXPath();
////////////////////////////////////////////////
// ItemDeleted
///////////////////////////////////////////////
ItemDeletedEventArgs args =
new ItemDeletedEventArgs();
args.item = attr;
args.XPath = strXPath;
// 每次按off算,外面需要时设为on
args.RiseAttrsEvents = false;
args.RecursiveChildEvents = false;
this.m_document.fireItemDeleted(this.m_document,args);
}
this.attrs.Clear();
}
// 删儿子 item可以是ElementItem 或 TextItem
internal void RemoveChildInternal(Item item,
bool bAddObjTimestamp)
{
Debug.Assert(item != null,"RemoveChild() item不能为null,调用出错");
// 当前节点 不属于儿子集合
int nIndex = this.children.IndexOf(item);
if (nIndex == -1)
{
Debug.Assert(false,"RemoveChild() item不属于儿子集合，调用出错");
return;
}
////////////////////////////////////////////////
// BeforeItemDelete
///////////////////////////////////////////////
string strXPath = item.GetXPath(); // 先得到Xpath,否则删除后就没有了
BeforeItemDeleteEventArgs beforeArgs =
new BeforeItemDeleteEventArgs();
beforeArgs.item = item;
this.m_document.fireBeforeItemDelete(this.m_document,beforeArgs);
// 把一些有用的初值设好，例如NamespaceURi,Value
if (item is ElementItem)
{
// 注意递归下级
this.SetNamespaceURI((ElementAttrBase)item);
// 递归下级设value???????????
}
else
{
// 把临时参数设好，目的是在一个元素被删除后，还可以继续使用它的Value属性
item.m_paraValue1 = item.GetValue();
}
if (ItemUtil.IsBelong(item,this.m_document.m_selectedItem))
{
this.m_document.SetActiveItem(null);
this.m_document.SetCurText(null,null);
}
// 做Remove()操作
this.children.Remove(item);
////////////////////////////////////////////////
// ItemDeleted
///////////////////////////////////////////////
if (item is ElementItem)
{
ElementItem element = (ElementItem)item;
element.FireTreeRemoveEvents(strXPath);
}
else
{
ItemDeletedEventArgs args =
new ItemDeletedEventArgs();
args.item = item;
args.XPath = strXPath;
// 每次按off算,外面需要时设为on
args.RiseAttrsEvents = false;
args.RecursiveChildEvents = false;
this.m_document.fireItemDeleted(this.m_document,args);
}
if (bAddObjTimestamp == true)
this.m_objChildrenTimestmap ++;
}
public void fireItemDeleted(object sender,
ItemDeletedEventArgs args)
{
if (ItemDeleted != null)
{
ItemDeleted(sender,args);
}
}
