1. Any node in the radio TreeView
2. When a node CheckBox property value changes: The child node's CheckBox property value follows its changes, the parent node does not change;
False when the CheckBox property value is false for all child nodes of the parent node, or True if the CheckBox property value of a child node is true.
3. When a node CheckBox property value changes: Child nodes, the parent Node CheckBox property values follow its changes;
False when the CheckBox property value is false for all child nodes of the parent node, or True if the CheckBox property value of a child node is true.
function ontreenodechecked (ID, type) {
Gets the object that triggered the event
var element = Window.event.srcElement;
Does not handle if the object is not a checkbox
if (! Ischeckbox (Element))
Return
Get checked status
var ischecked = element.checked;
Get Tree Object
var tree = Tv2_gettreebyid (ID);
Gets the relative node of the element (if it is a leaf node, it is an element, otherwise its <A> node)
var node = Tv2_getnode (tree, Element);
Switch (type) {
Case "1":
Setnodesunchecked (tree);
Element.checked = true;
Break
Case "2":
Tv2_setchildnodescheckstatus (node, ischecked);
Break
Case "3":
Tv2_setchildnodescheckstatus (node, ischecked);
var parent = Tv2_getparentnode (tree, node);
Tv2_nodeonchildnodecheckedchanged (tree, parent, ischecked);
}
}
Set all nodes checkbox nochecked
function setnodesunchecked (TreeNode) {
var inputs = Webform_getelementsbytagname (TreeNode, "INPUT");
if (inputs = NULL | | inputs.length = 0)
Return
for (var i = 0; i < inputs.length; i++) {
if (Ischeckbox (Inputs[i]))
inputs[i].checked = false;
}
}
Set Child nodes checkbox status
function tv2_setchildnodescheckstatus (node, ischecked) {
Returns the div layer where the current node is located
var childnodes = tv2i_getchildnodesdiv (node);
if (childnodes = null)
Return
var inputs = Webform_getelementsbytagname (ChildNodes, "INPUT");
if (inputs = NULL | | inputs.length = 0)
Return
for (var i = 0; i < inputs.length; i++) {
if (Ischeckbox (Inputs[i]))
inputs[i].checked = ischecked;
}
}
Change parent node checkbox status after child node changed
function tv2_nodeonchildnodecheckedchanged (tree, node, ischecked) {
if (node = null)
Return
var childnodes = tv2_getchildnodes (tree, node);
if (childnodes = null | | childnodes.length = 0)
Return
var isallsame = true;
for (var i = 0; i < childnodes.length; i++) {
var item = Childnodes[i];
var value = tv2_nodegetchecked (item);
if (ischecked!= value) {
Isallsame = false;
Break
}
}
var parent = Tv2_getparentnode (tree, node);
if (isallsame) {
tv2_nodesetchecked (node, ischecked);
Tv2_nodeonchildnodecheckedchanged (tree, parent, ischecked);
}
else {
Tv2_nodesetchecked (node, true);
Tv2_nodeonchildnodecheckedchanged (tree, parent, true);
}
}
Get node relative element (etc. checkbox)
function Tv2_getnode (tree, Element) {
var id = element.id.replace (tree.id, "");
id = id.tolowercase (). Replace (Element.type, "");
ID = tree.id + ID;
var node = document.getElementById (ID);
if (node = null)//leaf node, no "A" node
return element;
return node;
}
Get parent Node
function Tv2_getparentnode (tree, node) {
var div = webform_getparentbytagname (node, "div");
The structure of node: <table>information of Node</table><div>child nodes</div>
var table = div.previoussibling;
if (table = = null)
return null;
Return tv2i_getnodeinelement (tree, table);
}
Get child nodes Array
function tv2_getchildnodes (tree, node) {
if (tv2_nodeisleaf (node))
return null;
var children = new Array ();
var div = tv2i_getchildnodesdiv (node);
var index = 0;
for (var i = 0; i < div.childNodes.length; i++) {
var element = Div.childnodes[i];
if (element.tagname!= "TABLE")
Continue
var child = Tv2i_getnodeinelement (tree, Element);
if (Child!= null)
children[index++] = child;
}
return children;
}
function tv2_nodeisleaf (node) {
Return! (Node.tagname = = "A"); Todo
}
function tv2_nodegetchecked (node) {
var checkbox = Tv2i_nodegetcheckbox (node);
return checkbox.checked;
}
function tv2_nodesetchecked (node, ischecked) {
var checkbox = Tv2i_nodegetcheckbox (node);
if (checkbox!= null)
checkbox.checked = ischecked;
}
function Ischeckbox (Element) {
if (element = = null)
return false;
return (Element.tagname = = "INPUT" && element.type.toLowerCase () = = "checkbox");
}
Get tree
function Tv2_gettreebyid (ID) {
return document.getElementById (ID);
}
//////////////////////////////////////////////////////////////////////////////////////////////
Private mothods, with tv2i_ prefix
//////////////////////////////////////////////////////////////////////////////////////////////
Get DIV contains child nodes
function Tv2i_getchildnodesdiv (node) {
if node.tagname = = "A" is not processed
if (tv2_nodeisleaf (node))
return null;
var childnodsdivid = node.id + "Nodes";
return document.getElementById (Childnodsdivid);
}
Find node in element
function tv2i_getnodeinelement (tree, Element) {
var node = Tv2i_getnodeinelementa (tree, Element);
if (node = null) {
node = Tv2i_getnodeinelementinput (tree, Element);
}
return node;
}
Find "A" node
function Tv2i_getnodeinelementa (tree, Element) {
var as = Webform_getelementsbytagname (element, "A");
if (as = = NULL | | as.length = 0)
return null;
var regexp = new RegExp ("^" + tree.id + "n\\d+$");
for (var i = 0; i < as.length; i++) {
if (As[i].id.match (regexp)) {
return as[i];
}
}
return null;
}
Find "INPUT" node
function tv2i_getnodeinelementinput (tree, Element) {
var as = Webform_getelementsbytagname (element, "INPUT");
if (as = = NULL | | as.length = 0)
return null;
var regexp = new RegExp ("^" + tree.id + "n\\d+");
for (var i = 0; i < as.length; i++) {
if (As[i].id.match (regexp)) {
return as[i];
}
}
return null;
}
Get checkbox of Node
function Tv2i_nodegetcheckbox (node) {
if (Ischeckbox (node))
return node;
var id = node.id + "CheckBox";
return document.getElementById (ID);
}
