如果不实现参数传递,那很简单
如果有参数传递,先要在js中传递参数给后台
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function nodeLoad(node)
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{
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Coolite.AjaxMethods.NodeLoad(node.id, {
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success: function(result) {
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var data = eval("(" + result + ")");
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node.loadNodes(data);
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},
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failure: function(errorMsg) {
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Ext.Msg.alert('Failure', errorMsg);
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}
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});
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}
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code Behind:
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[AjaxMethod]
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public static string NodeLoad(string nodeID)
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{
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Coolite.Ext.Web.TreeNodeCollection nodes = new Coolite.Ext.Web.TreeNodeCollection();
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LoadTreeData nodeData = new LoadTreeData();
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ArrayList getNodes = nodeData.TreeData(nodeID);
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for (int i = 0; i < getNodes.Count; i++)
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{
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nodeData = (LoadTreeData)getNodes[i];
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AsyncTreeNode asyncNode = new AsyncTreeNode();
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asyncNode.Text = nodeData.NodeText;
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asyncNode.NodeID = nodeData.NodeID.ToString();
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asyncNode.Leaf = nodeData.IsLeaf;
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if (nodeData.IsLeaf)
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{
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//asyncNode.Href = HttpContext.Current.Request.ApplicationPath + "/" + nodeData.NodeUrl;
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}
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asyncNode.SingleClickExpand = true;
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nodes.Add(asyncNode);
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}
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return nodes.ToJson();
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}
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aspx:
在TreePanel的Listener里加上如下代码:
<Listeners>
<BeforeLoad Fn="nodeLoad" />
</Listeners>
<BeforeLoad Fn="nodeLoad" />
</Listeners>