function checkall(checkflag, checkname) {
var el = document.getElementsByTagName('input');
var len = el.length; for (var i = 0; i < len; i++) {
if (el[i].type == "checkbox" && el[i].id.indexOf(checkname) > -1) {
el[i].checked = checkflag;
}
}
}
<asp:CheckBox ID="SelSignAll" runat="server"
onclick="checkall(this.checked,'SelSign');" />
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//TREE控件节点控制事件,调用方法this.TreeViewMoudle.Attributes.Add("onclick", "CheckEvent(event)");
//子节点的CheckBox跟着父节点变化而变化,同时父节点的CheckBox跟着子节点变化而变化function CheckEvent(evt) {
evt = window.event || evt;
var objNode = evt.srcElement || evt.target;
if (objNode.tagName == "INPUT" && objNode.type == "checkbox") {
var objParentDiv = objNode.id.replace("CheckBox", "Nodes");
if (objNode.checked == true) {
setChildCheckState(objParentDiv, true); setParentCheckeState(objNode, true);
}
else {
setChildCheckState(objParentDiv, false); if (!HasOtherChecked(objNode)) {
setParentCheckeState(objNode, false);
}
}
}
}//父节点的CheckBox跟着子节点变化而变化function CheckParentEvent(evt) {
evt = window.event || evt;
var objNode = evt.srcElement || evt.target;
if (objNode.tagName == "INPUT" && objNode.type == "checkbox") {
var objParentDiv = objNode.id.replace("CheckBox", "Nodes");
if (objNode.checked == true) {
setParentCheckeState(objNode, true);
}
else {
if (!HasOtherChecked(objNode)) {
setParentCheckeState(objNode, false);
}
}
}
}//子节点的CheckBox跟着父节点变化而变化function CheckNodeEvent(evt) {
evt = window.event || evt;
var objNode = evt.srcElement || evt.target;
if (objNode.tagName == "INPUT" && objNode.type == "checkbox") {
var objParentDiv = objNode.id.replace("CheckBox", "Nodes");
if (objNode.checked == true) {
setChildCheckState(objParentDiv, true);
}
else {
setChildCheckState(objParentDiv, false);
}
}
}
//判断是否有并行的其他节点被选中
function HasOtherChecked(objNode) {
var objParentDiv = WebForm_GetParentByTagName(objNode, "div"); var chks = objParentDiv.getElementsByTagName("INPUT");
for (var i = 0; i < chks.length; i++) {
if (chks[i].checked && chks[i].id != objNode.id) {
return true;
}
}
return false;
}//设置父节点function setParentCheckeState(objNode, chkstate) {
try {
var objParentDiv = WebForm_GetParentByTagName(objNode, "div"); if (objParentDiv == null || objParentDiv == "undefined ") {
return;
}
else {
var objParentChkId = objParentDiv.id.replace("Nodes", "CheckBox");
var objParentCheckBox = document.getElementById(objParentChkId); if (objParentCheckBox) {
objParentCheckBox.checked = chkstate;
setParentCheckeState(objParentDiv, chkstate);
}
}
}
catch (e) { }
}//设置子节点function setChildCheckState(nodeid, chkstate) { var node = document.getElementById(nodeid);
if (node) {
var chks = node.getElementsByTagName("INPUT");
for (var i = 0; i < chks.length; i++) {
chks[i].checked = chkstate;
}
}
}