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TreeView 级联

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<treeview id="tvUsers" runat="server" showlines="true" showcheckboxes="All" onclick="OnTreeNodeChecked()"></treeview>
<script language="javascript" type="text/javascript"> function OnTreeNodeChecked() { var ele = event.srcElement; if (ele.type == 'checkbox') { var childrenDivID = ele.id.replace('CheckBox', 'Nodes'); var div = document.getElementById(childrenDivID); if (div != null) { var checkBoxs = div.getElementsByTagName('INPUT'); for (var i = 0; i < checkBoxs.length; i++) { if (checkBoxs[i].type == 'checkbox') checkBoxs[i].checked = ele.checked; } } else { var div = GetParentByTagName(ele, 'DIV'); var checkBoxs = div.getElementsByTagName('INPUT'); var parentCheckBoxID = div.id.replace('Nodes', 'CheckBox'); var parentCheckBox = document.getElementById(parentCheckBoxID); var notcheck = true; for (var i = 0; i < checkBoxs.length; i++) { if (checkBoxs[i].type == 'checkbox' && !checkBoxs[i].checked) { notcheck = false; } } parentCheckBox.checked = notcheck; } } } function GetParentByTagName(element, tagName) { var parent = element.parentNode; var upperTagName = tagName.toUpperCase(); while (parent && (parent.tagName.toUpperCase() != upperTagName)) { parent = parent.parentNode ? parent.parentNode : parent.parentElement; } return parent; } </script>
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