web app 你需要用js来处理,例如: // Add it in your web header section in aspx file <script language="javascript"> function setNodeIndex() { if( yourTreeView.clickedNodeIndex != "" && yourTreeView.clickedNodeIndex != "null" ) document.all("NodeIndex").value=yourTreeView.clickedNodeIndex; else document.all("NodeIndex").value=yourTreeView.selectedNodeIndex; } </script>// Add it in your web form aspx file <input id="NodeIndex" type="hidden" name="NodeIndex" runat="server">// Add it in page_load event yourTreeView.Attributes.Add( "onclick", "setNodeIndex();" );// Use "NodeIndex" in your web app private TreeNode tnCurrent = null;if( NodeIndex.Value != "" && NodeIndex.Value.ToLower() != "null" ) { yourTreeView.SelectedNodeIndex = NodeIndex.Value; tnCurrent = yourTreeView.GetNodeFromIndex( yourTreeView.SelectedNodeIndex ); // Do what you want here using "tnCurrent" } else tnCurrent = null;
Treeview 好象没有事件,那么能不能提交页面后能保持Treeview的Selectindex值和选中节点的显示不变
参看
http://community.csdn.net/Expert/TopicView3.asp?id=4695589
中我的方法
你需要用js来处理,例如:
// Add it in your web header section in aspx file
<script language="javascript">
function setNodeIndex()
{
if( yourTreeView.clickedNodeIndex != "" && yourTreeView.clickedNodeIndex != "null" )
document.all("NodeIndex").value=yourTreeView.clickedNodeIndex;
else
document.all("NodeIndex").value=yourTreeView.selectedNodeIndex;
}
</script>// Add it in your web form aspx file
<input id="NodeIndex" type="hidden" name="NodeIndex" runat="server">// Add it in page_load event
yourTreeView.Attributes.Add( "onclick", "setNodeIndex();" );// Use "NodeIndex" in your web app
private TreeNode tnCurrent = null;if( NodeIndex.Value != "" && NodeIndex.Value.ToLower() != "null" )
{
yourTreeView.SelectedNodeIndex = NodeIndex.Value;
tnCurrent = yourTreeView.GetNodeFromIndex(
yourTreeView.SelectedNodeIndex );
// Do what you want here using "tnCurrent"
}
else
tnCurrent = null;