<%@ Page Language="C#" %><%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" <head runat="server">
<title>Ext.NET Example</title>
<script type="text/javascript">
var onClick = function (node, e) {
var t = Ext.get(e.getTarget()),
cls,
index;
if (!t.hasClass("x-treegrid-col")) {
t = t.up(".x-treegrid-col");
}
cls = t.getAttribute("class");
index = parseInt(cls.substr(cls.length - 1));
if (!Ext.isNumber(index)) {
index = 0;
}
Ext.Msg.alert("Click", String.format("Node id: {0}<br/>Column index: {1}", node.id, index));
};
</script>
</head>
<body>
<ext:ResourceManager runat="server" />
<ext:TreeGrid runat="server" AutoHeight="true">
<Columns>
<ext:TreeGridColumn Header="Text" DataIndex="text" Width="100" />
<ext:TreeGridColumn Header="Test1" DataIndex="test1" Width="100" Cls="my-column1" />
<ext:TreeGridColumn Header="Test2" DataIndex="test2" Width="100" Cls="my-column2" />
</Columns>
<Root>
<ext:TreeNode>
<Nodes>
<ext:TreeNode Text="Node1">
<CustomAttributes>
<ext:ConfigItem Name="test1" Value="node1_test1" Mode="Value" />
<ext:ConfigItem Name="test2" Value="node1_test2" Mode="Value" />
</CustomAttributes>
<Nodes>
<ext:TreeNode Text="Node1.1">
<CustomAttributes>
<ext:ConfigItem Name="test1" Value="node1.1_test1" Mode="Value" />
<ext:ConfigItem Name="test2" Value="node1.1_test2" Mode="Value" />
</CustomAttributes>
</ext:TreeNode>
</Nodes>
</ext:TreeNode>
</Nodes>
</ext:TreeNode>
</Root>
<Listeners>
<Click Fn="onClick" />
</Listeners>
</ext:TreeGrid>
</body>
</html>
摘自：http://forums.ext.net/showthread.php?17775-CLOSED-Treegrid-determine-what-column-was-clicked-on