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Poor TreeView Performance Problems Messages   Related Types This message was discovered on ASPFriends.com 'aspngwebcontrols' list. Julian Voelcker I have a TreeView configured to dynamically build up as people click to expand nodes. The TreeView code is as follows:- <iewc:treeview id="TreeView1" runat="server" treenodesrc="http://www.charityskills.org/TreeView/buildtree.aspx"; autopostback="True" /> The buildtree.aspx returns the treenode data in XML format which you can see for yourself. The problems I have are as follows:- 1. Is there any way to get it to retrieve more nodes without posting back or loading all the menu data at once? 2. I quite often find that the menu is very slow to display and sort of hangs during loading - have any of you experienced this? 3. The viewstate field seems to massive and grows as you work down a tree - is there any way to avoid this? You can see a sample of the tree at http://www.charityskills.org/TreeView/tree.aspx. Usually it sits within a frameset elsewhere on the site. I would appreciate your help on this. Cheers, Julian Voelcker The Virtual World (UK) Limited Cirencester, United Kingdom Reply to this message...        James Avery You could definitely load all the nodes at the beginning, how many total nodes are there? .Then a postback would not be needed whenever someone clicked on the link.(unless they had a down-level browser) -----Original Message----- From: Julian Voelcker [mailto:Click here to reveal e-mail address] Sent: Wednesday, May 08, 2002 7:16 AM To: aspngwebcontrols Subject: [aspngwebcontrols] Poor TreeView Performance Problems I have a TreeView configured to dynamically build up as people click to expand nodes. The TreeView code is as follows:- <iewc:treeview id="TreeView1" runat="server" treenodesrc="http://www.charityskills.org/TreeView/buildtree.aspx"; autopostback="True" /> The buildtree.aspx returns the treenode data in XML format which you can see for yourself. The problems I have are as follows:- 1. Is there any way to get it to retrieve more nodes without posting back or loading all the menu data at once? 2. I quite often find that the menu is very slow to display and sort of hangs during loading - have any of you experienced this? 3. The viewstate field seems to massive and grows as you work down a tree - is there any way to avoid this? You can see a sample of the tree at http://www.charityskills.org/TreeView/tree.aspx. Usually it sits within a frameset elsewhere on the site. I would appreciate your help on this. Cheers, Julian Voelcker The Virtual World (UK) Limited Cirencester, United Kingdom | [aspngwebcontrols] member Click here to reveal e-mail address = YOUR ID | http://www.asplists.com/asplists/aspngwebcontrols.asp = JOIN/QUIT Reply to this message...        Standefer, Robert E How would I do this (load all the nodes at the beginning)? Robert Standefer Account Architect EDS - Sprint Carrier Transport MS H1-5A-24 5400 Legacy Dr Plano, TX 75024 phone: +01-972-797-8821 mailto:Click here to reveal e-mail address http://www.eds.com -----Original Message----- From: James Avery [mailto:Click here to reveal e-mail address] Sent: Wednesday, May 08, 2002 9:15 AM To: aspngwebcontrols Subject: [aspngwebcontrols] RE: Poor TreeView Performance Problems You could definitely load all the nodes at the beginning, how many total nodes are there? .Then a postback would not be needed whenever someone clicked on the link.(unless they had a down-level browser) -----Original Message----- From: Julian Voelcker [mailto:Click here to reveal e-mail address] Sent: Wednesday, May 08, 2002 7:16 AM To: aspngwebcontrols Subject: [aspngwebcontrols] Poor TreeView Performance Problems I have a TreeView configured to dynamically build up as people click to expand nodes. The TreeView code is as follows:- <iewc:treeview id="TreeView1" runat="server" treenodesrc="http://www.charityskills.org/TreeView/buildtree.aspx"; autopostback="True" /> The buildtree.aspx returns the treenode data in XML format which you can see for yourself. The problems I have are as follows:- 1. Is there any way to get it to retrieve more nodes without posting back or loading all the menu data at once? 2. I quite often find that the menu is very slow to display and sort of hangs during loading - have any of you experienced this? 3. The viewstate field seems to massive and grows as you work down a tree - is there any way to avoid this? You can see a sample of the tree at http://www.charityskills.org/TreeView/tree.aspx. Usually it sits within a frameset elsewhere on the site. I would appreciate your help on this. Cheers, Julian Voelcker The Virtual World (UK) Limited Cirencester, United Kingdom | [aspngwebcontrols] member Click here to reveal e-mail address = YOUR ID | http://www.asplists.com/asplists/aspngwebcontrols.asp = JOIN/QUIT | [aspngwebcontrols] member Click here to reveal e-mail address = YOUR ID | http://www.asplists.com/asplists/aspngwebcontrols.asp = JOIN/QUIT Reply to this message...        James Avery Just create an xml file that has all the nodes then bind to that file. Make sure autopostback is set to false. -----Original Message----- From: Standefer, Robert E [mailto:Click here to reveal e-mail address] Sent: Wednesday, May 08, 2002 10:28 AM To: aspngwebcontrols Subject: [aspngwebcontrols] RE: Poor TreeView Performance Problems How would I do this (load all the nodes at the beginning)? Robert Standefer Account Architect EDS - Sprint Carrier Transport MS H1-5A-24 5400 Legacy Dr Plano, TX 75024 phone: +01-972-797-8821 mailto:Click here to reveal e-mail address http://www.eds.com -----Original Message----- From: James Avery [mailto:Click here to reveal e-mail address] Sent: Wednesday, May 08, 2002 9:15 AM To: aspngwebcontrols Subject: [aspngwebcontrols] RE: Poor TreeView Performance Problems You could definitely load all the nodes at the beginning, how many total nodes are there? .Then a postback would not be needed whenever someone clicked on the link.(unless they had a down-level browser) -----Original Message----- From: Julian Voelcker [mailto:Click here to reveal e-mail address] Sent: Wednesday, May 08, 2002 7:16 AM To: aspngwebcontrols Subject: [aspngwebcontrols] Poor TreeView Performance Problems I have a TreeView configured to dynamically build up as people click to expand nodes. The TreeView code is as follows:- <iewc:treeview id="TreeView1" runat="server" treenodesrc="http://www.charityskills.org/TreeView/buildtree.aspx"; autopostback="True" /> The buildtree.aspx returns the treenode data in XML format which you can see for yourself. The problems I have are as follows:- 1. Is there any way to get it to retrieve more nodes without posting back or loading all the menu data at once? 2. I quite often find that the menu is very slow to display and sort of hangs during loading - have any of you experienced this? 3. The viewstate field seems to massive and grows as you work down a tree - is there any way to avoid this? You can see a sample of the tree at http://www.charityskills.org/TreeView/tree.aspx. Usually it sits within a frameset elsewhere on the site. I would appreciate your help on this. Cheers, Julian Voelcker The Virtual World (UK) Limited Cirencester, United Kingdom | [aspngwebcontrols] member Click here to reveal e-mail address = YOUR ID | http://www.asplists.com/asplists/aspngwebcontrols.asp = JOIN/QUIT | [aspngwebcontrols] member Click here to reveal e-mail address = YOUR ID | http://www.asplists.com/asplists/aspngwebcontrols.asp = JOIN/QUIT | [aspngwebcontrols] member Click here to reveal e-mail address = YOUR ID | http://www.asplists.com/asplists/aspngwebcontrols.asp = JOIN/QUIT Reply to this message...        Julian Voelcker I have several hundred nodes so loading all at once is not an option. Do you have any other ideas or have you experienced any performance problems at your end? Cheers, Julian Voelcker The Virtual World (UK) Limited Cirencester, United Kingdom Reply to this message...        James Avery I usually have under 40 nodes so I load them all at the beginning with no problems, and have experienced no performance issues. Have tried loading them all just to see what the performance was like? -----Original Message----- From: Julian Voelcker [mailto:Click here to reveal e-mail address] Sent: Wednesday, May 08, 2002 6:17 PM To: aspngwebcontrols Subject: [aspngwebcontrols] Re: Poor TreeView Performance Problems I have several hundred nodes so loading all at once is not an option. Do you have any other ideas or have you experienced any performance problems at your end? Cheers, Julian Voelcker The Virtual World (UK) Limited Cirencester, United Kingdom | [aspngwebcontrols] member Click here to reveal e-mail address = YOUR ID | http://www.asplists.com/asplists/aspngwebcontrols.asp = JOIN/QUIT Reply to this message...     System.Windows.Forms.TreeView Ad MBR BootFX Best-of-breed application framework for .NET projects, developed by Matthew Baxter-Reynolds and MBR IT

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