Posted in Javascript onJuly 13, 2013
function public_GetParentByTagName(element, tagName) { var parent = element.parentNode; var upperTagName = tagName.toUpperCase(); //如果这个元素还不是想要的tag就继续上溯 while (parent && (parent.tagName.toUpperCase() != upperTagName)) { parent = parent.parentNode ? parent.parentNode : parent.parentElement; } return parent; } //设置节点的父节点Cheched——该节点可访问,则他的父节点也必能访问 function setParentChecked(objNode) { var objParentDiv = public_GetParentByTagName(objNode,"div"); if(objParentDiv==null || objParentDiv == "undefined") { return; } var objID = objParentDiv.getAttribute("ID"); objID = objID.substring(0,objID.indexOf("Nodes")); objID = objID+"CheckBox"; var objParentCheckBox = document.getElementById(objID); if(objParentCheckBox==null || objParentCheckBox == "undefined") { return; } if(objParentCheckBox.tagName!="INPUT" && objParentCheckBox.type == "checkbox") return; objParentCheckBox.checked = true; setParentChecked(objParentCheckBox); } //设置节点的子节点uncheched——该节点不可访问,则他的子节点也不能访问 function setChildUnChecked(divID) { var objchild = divID.children; var count = objchild.length; for(var i=0;i<objchild.length;i++) { var tempObj = objchild[i]; if(tempObj.tagName=="INPUT" && tempObj.type == "checkbox") { tempObj.checked = false; } setChildUnChecked(tempObj); } } //设置节点的子节点cheched——该节点可以访问,则他的子节点也都能访问 function setChildChecked(divID) { var objchild = divID.children; var count = objchild.length; for(var i=0;i<objchild.length;i++) { var tempObj = objchild[i]; if(tempObj.tagName=="INPUT" && tempObj.type == "checkbox") { tempObj.checked = true; } setChildChecked(tempObj); } } //触发事件 function CheckEvent() { var objNode = event.srcElement; if(objNode.tagName!="INPUT" || objNode.type!="checkbox") return; if(objNode.checked==true) { setParentChecked(objNode); var objID = objNode.getAttribute("ID"); var objID = objID.substring(0,objID.indexOf("CheckBox")); var objParentDiv = document.getElementById(objID+"Nodes"); if(objParentDiv==null || objParentDiv == "undefined") { return; } setChildChecked(objParentDiv); } else { var objID = objNode.getAttribute("ID"); var objID = objID.substring(0,objID.indexOf("CheckBox")); var objParentDiv = document.getElementById(objID+"Nodes"); if(objParentDiv==null || objParentDiv == "undefined") { return; } setChildUnChecked(objParentDiv); } }
服务端控件
this.tvPrivilege.Attributes.Add("OnClick", "CheckEvent()");
javascript实现TreeView 无刷新展开的实例代码
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