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  • ASP.NET 2.0 Treeview Checkboxes Check All Javascript

    在页面加入该函数
        <script language="javascript">
            <!--
               function client_OnTreeNodeChecked()
            {
            var obj = window.event.srcElement;
            var treeNodeFound = false;
            var checkedState;
            if (obj.tagName == "INPUT" && obj.type == "checkbox") {
            var treeNode = obj;
            checkedState = treeNode.checked;
            do
            {
            obj = obj.parentElement;
            } while (obj.tagName != "TABLE")
            var parentTreeLevel = obj.rows[0].cells.length;
            var parentTreeNode = obj.rows[0].cells[0];
            var tables = obj.parentElement.getElementsByTagName("TABLE");
            var numTables = tables.length
            if (numTables >= 1)
            {
            for (i=0; i < numTables; i++)
            {
            if (tables[i] == obj)
            {
            treeNodeFound = true;
            i++;
            if (i == numTables)
            {
            return;
            }
            }
            if (treeNodeFound == true)
            {
            var childTreeLevel = tables[i].rows[0].cells.length;
            if (childTreeLevel > parentTreeLevel)
            {
            var cell = tables[i].rows[0].cells[childTreeLevel - 1];
            var inputs = cell.getElementsByTagName("INPUT");
            inputs[0].checked = checkedState;
            }
            else
            {
            return;
            }
            }
            }
            }
            }
            }

    //-->
    </script>
    在   <asp:TreeView ID="TreeView1" runat="server"  onclick="client_OnTreeNodeChecked();"
                ShowCheckBoxes="All" >
    用onclick事件调用该函数即可实现复选框与下级复选框状态保持一致。

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  • 原文地址:https://www.cnblogs.com/wisdom/p/613007.html
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