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| Markus |
hey scott,
i'm doing it the same way like you: streaming the XML code directly to the
treeview using an aspx file.
please ensure that u only write the XML code via the HttpResponse object of
ASP.NET out of ur aspx page.
there mustn't be any other header or html tags in the Output stream.
perhaps this will solve ur problem!
greetinx from germany
markus
-----Ursprungliche Nachricht-----
Von: Scott Sargent [mailto:Click here to reveal e-mail address]
Gesendet: Montag, 6. Mai 2002 18:05
An: aspngwebcontrols
Betreff: [aspngwebcontrols] RE: Bizarre TreeView Control Error
Here's my source code:
<SOURCE_CODE>
<%@ Register TagPrefix="iewc" Namespace="Microsoft.Web.UI.WebControls"
Assembly="Microsoft.Web.UI.WebControls, Version=1.0.2.226, Culture=neutral,
PublicKeyToken=31bf3856ad364e35" %>
<%@ Import Namespace="Microsoft.Web.UI.WebControls" %>
<%@ Page language="C#" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>IETreeView</title>
<meta content="Microsoft Visual Studio 7.0" name="GENERATOR">
<meta content="C#" name="CODE_LANGUAGE">
<meta content="JavaScript" name="vs_defaultClientScript">
<meta content="http://schemas.microsoft.com/intellisense/ie5";
name="vs_targetSchema">
<link rel="stylesheet" href="/style/aspx_master.css" type="text/css">
</HEAD>
<body MS_POSITIONING="GridLayout" bgcolor="navy">
<font face="Verdana" color="white">
<form id="IETreeView" method="post" runat="server">
<iewc:TreeView id="TreeView1"
DEFAULTSTYLE="font-family:verdana;color:white;" runat="server"
TreeNodeSrc="xslvoodoo.aspx" />
</form>
</font>
</body>
</HTML>
</SOURCE_CODE>
The odd thing that I'm finding is that if i go to the xml page directly
(xslvoodo.aspx) i can see the xml it renders nicely and appears to be
correct. I can then save that off in a separate file and pass that filename
to the ie treeview control and poof it works. But it won't work if i pull
it from the aspx page. I've got the content type and character set on the
aspx page. Any ideas?
here's the xml
<?xml version="1.0" encoding="utf-8" ?>
<TREENODES>
<TREENODE Text="Knowledgebase"
NavigateUrl="/protected/nav/router.aspx?ItemId=1015">
<TREENODE Text="User Journal Tool"
NavigateUrl="/protected/nav/router.aspx?ItemId=1019">
<TREENODE Text="User Journal Tools"
NavigateUrl="/protected/nav/router.aspx?ItemId=1034">
</TREENODE>
<TREENODE Text="User Journal Pages"
NavigateUrl="/protected/nav/router.aspx?ItemId=1035">
<TREENODE Text="codeboy"
NavigateUrl="/protected/nav/router.aspx?ItemId=1023">
</TREENODE>
<TREENODE Text="athena"
NavigateUrl="/protected/nav/router.aspx?ItemId=1025">
</TREENODE>
<TREENODE Text="codemonkey"
NavigateUrl="/protected/nav/router.aspx?ItemId=1032">
</TREENODE>
<TREENODE Text="sqlfish"
NavigateUrl="/protected/nav/router.aspx?ItemId=1033">
</TREENODE>
<TREENODE Text="jdixon"
NavigateUrl="/protected/nav/router.aspx?ItemId=1038">
</TREENODE>
<TREENODE Text="mwittman"
NavigateUrl="/protected/nav/router.aspx?ItemId=1039">
</TREENODE>
<TREENODE Text="ssmagic"
NavigateUrl="/protected/nav/router.aspx?ItemId=1040">
</TREENODE>
</TREENODE>
</TREENODE>
<TREENODE Text="Technology"
NavigateUrl="/protected/nav/router.aspx?ItemId=1036">
<TREENODE Text="ASP.NET "
NavigateUrl="/protected/nav/router.aspx?ItemId=1016">
</TREENODE>
<TREENODE Text=".NET"
NavigateUrl="/protected/nav/router.aspx?ItemId=1017">
</TREENODE>
<TREENODE Text="SSMAGIC.COM"
NavigateUrl="/protected/nav/router.aspx?ItemId=1018">
</TREENODE>
</TREENODE>
<TREENODE Text="Life & Liesure"
NavigateUrl="/protected/nav/router.aspx?ItemId=1037">
</TREENODE>
</TREENODE>
</TREENODES>
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| Scott Sargent |
Ok, i'm trying another route, instead of using the asp:xml control I'm just
doing everything from the response stream as you reccomended.
one wierd thing that i just noticed, If I browse directly to the page
(xslvoodo.aspx) that contains the xml it shows it to me in perfect
formatting, no errors. If i Refresh the page, I get a 'QUOTE' error, if i
Refresh again it pops me out of forms authentication and my login page pops
up. I've got to believe whatever is causing the page to freak out on that
second reload is also causing the webcontrol to go nuts. Any Ideas? The
oddest part about this is the xml is hard coded, its pulling from a static
file and then dynamically applying the xsl which is also static. At some
point in the future i hope to have it a bit more dynamic but its not there
yet.
Here's the code for the page that generates the xml (xslvoodoo.aspx )
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Xml;
using System.Xml.Xsl;
namespace ssmagic.com.__protected.Nav
{
/// <summary>
/// Summary description for XSLVoodoo.
/// </summary>
public class XSLVoodoo : System.Web.UI.Page
{
private void Page_Load(object sender, System.EventArgs e)
{
Response.ContentEncoding = System.Text.Encoding.UTF8;
Response.ContentType = "text/xml";
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(Server.MapPath("itemtree.xml"));
XslTransform xmltrans = new XslTransform();
xmltrans.Load(Server.MapPath("testxsldyn.xsl"));
xmltrans.Transform(xmlDoc.CreateNavigator(),null,Response.OutputStream);
}
#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: This call is required by the ASP.NET Web Form Designer.
//
InitializeComponent();
base.OnInit(e);
}
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
}
}
Which builds (some of the time apparently) this XML (the - were from IE)
<?xml version="1.0" encoding="utf-8" ?>
- <TREENODES>
- <TREENODE Text="Knowledgebase"
NavigateUrl="/protected/nav/router.aspx?ItemId=1015">
- <TREENODE Text="User Journal Tool"
NavigateUrl="/protected/nav/router.aspx?ItemId=1019">
<TREENODE Text="User Journal Tools"
NavigateUrl="/protected/nav/router.aspx?ItemId=1034" />
- <TREENODE Text="User Journal Pages"
NavigateUrl="/protected/nav/router.aspx?ItemId=1035">
<TREENODE Text="codeboy"
NavigateUrl="/protected/nav/router.aspx?ItemId=1023" />
<TREENODE Text="athena"
NavigateUrl="/protected/nav/router.aspx?ItemId=1025" />
<TREENODE Text="codemonkey"
NavigateUrl="/protected/nav/router.aspx?ItemId=1032" />
<TREENODE Text="sqlfish"
NavigateUrl="/protected/nav/router.aspx?ItemId=1033" />
<TREENODE Text="jdixon@ssmagic"
NavigateUrl="/protected/nav/router.aspx?ItemId=1038" />
<TREENODE Text="mwittman"
NavigateUrl="/protected/nav/router.aspx?ItemId=1039" />
<TREENODE Text="ssmagic"
NavigateUrl="/protected/nav/router.aspx?ItemId=1040" />
</TREENODE>
</TREENODE>
- <TREENODE Text="Technology"
NavigateUrl="/protected/nav/router.aspx?ItemId=1036">
<TREENODE Text="ASP.NET"
NavigateUrl="/protected/nav/router.aspx?ItemId=1016" />
<TREENODE Text=".NET" NavigateUrl="/protected/nav/router.aspx?ItemId=1017"
/>
<TREENODE Text="SSMAGIC.COM"
NavigateUrl="/protected/nav/router.aspx?ItemId=1018" />
</TREENODE>
<TREENODE Text="Life & Liesure"
NavigateUrl="/protected/nav/router.aspx?ItemId=1037" />
</TREENODE>
</TREENODES>
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