Security: securityexception with web parts (SPSv2)

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  - 1
    - HTML control Hi, I want to have a control in my form which display a certain HTML file. How to do this ? Moreover, I want to save that HTML file (with all accompany images) in a different names (somewhat like the "Save as" feature of Internet Explorer). Is it feasible ? If it is possible, How to do it ? Thanks Tag: Security: securityexception with web parts (SPSv2) Tag: 50662
  - 2
    - Preview control Hi, "Preview" is a worthy feature of Windows Explorer. I want to have a control which previews .HTML files in my form. How to do this ? Tag: Security: securityexception with web parts (SPSv2) Tag: 50661
  - 3
    - Passing objects between AppDomains Hi all, I need to extract type information from an assembly and unload the assembly to prevent it from locking. So I create separate application domain, explore the assembly via Reflection in this domain (this results in building a hierarchical data structure containing the information about the types in the assembly) , and unload the domain. The question is what is the best way to pass the data structure from this domain to the default domain where the main work happens? Should I use BinaryFormatter and write a file or there are better methods? Thanks in advance. Dmitry Shaporenkov Tag: Security: securityexception with web parts (SPSv2) Tag: 50599
  - 4
    - First time catch (or trow?) takes _unexpectedly_ long time. Hi to All, As I searched in google, others reported similar things too: My case: After installing a using VS 2003 (or is it about Framework 1.1?) every application's every run-sessions first time exception takes at least 5 sesc to reach the catch. Why? It is unexpected of point of view of user, and very uncomfortable for the developer. Using VS 2002 (or Framework 1.0) this delay is not exist Workaround need. thx for answers. Tag: Security: securityexception with web parts (SPSv2) Tag: 50592
  - 5
    - Wish: MS, please add Office 2k3 Menus/Toolbars to the Framework This is a multi-part message in MIME format. ------=_NextPart_000_0016_01C33F79.5117E8E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dear Microsoft, =20 The current "Windows.Forms" controls included in the .Net Framework are = good, but in many ways they're pretty basic, and I think it's time that = you take Windows.Forms to the next level. I really think that the menus = and toolbars used in Office 2003 should be added to the .Net Framework = as standard controls in the next release of the Framework and VS.NET, = codenamed "Visual Studio .Net for Yukon." This would truly take the = .Net to the next level! Thanks for listening to this, and let me know = what you think. =20 Jason ------=_NextPart_000_0016_01C33F79.5117E8E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML xmlns:o =3D "urn:schemas-microsoft-com:office:office" xmlns:st1 = =3D=20 "urn:schemas-microsoft-com:office:smarttags"><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 6.00.2800.1170" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff><FONT face=3DArial><FONT size=3D2> <DIV> <P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><SPAN=20 style=3D"FONT-FAMILY: Tahoma"><FONT size=3D3>Dear=20 Microsoft,<o:p></o:p></FONT></SPAN></P> <P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><SPAN=20 style=3D"FONT-FAMILY: Tahoma"><o:p><FONT = size=3D3> </FONT></o:p></SPAN></P> <P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><SPAN=20 style=3D"FONT-FAMILY: Tahoma"><FONT size=3D3>The current = =93Windows.Forms=94 controls=20 included in the .Net Framework are good, but in many ways they=92re = pretty basic,=20 and I think it=92s time that you take Windows.Forms to the next = level.<SPAN=20 style=3D"mso-spacerun: yes">  </SPAN>I really think that the menus = and=20 toolbars used in Office 2003 should be added to the .Net Framework as = standard=20 controls in the next release of the Framework and VS.NET, codenamed = =93Visual=20 Studio .Net for <st1:State w:st=3D"on"><st1:place=20 w:st=3D"on">Yukon</st1:place></st1:State>.=94<SPAN = style=3D"mso-spacerun: yes"> =20 </SPAN>This would truly take the .Net to the next level!<SPAN=20 style=3D"mso-spacerun: yes">  </SPAN>Thanks for listening to this, = and let me=20 know what you think.</FONT></SPAN></P> <P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><SPAN=20 style=3D"FONT-FAMILY: Tahoma"><o:p><FONT = size=3D3> </FONT></o:p></SPAN></P> <P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt"><SPAN=20 style=3D"FONT-FAMILY: Tahoma"><FONT=20 size=3D3>Jason<o:p></o:p></FONT></SPAN></P></DIV></FONT></FONT></BODY></H= TML> ------=_NextPart_000_0016_01C33F79.5117E8E0-- Tag: Security: securityexception with web parts (SPSv2) Tag: 50585
  - 6
    - Raise event from library worker thread. Hi! I am writing a library in managed C++ for the .NET framework. I have problems fireing events from a worker thread. The managed event must be raised from the main thread, but I cannot find any way to pass control from the worker thread to the main thread. In the COM programming model the problem was solved by creating an invisible window which the worker thread passed win32 messages to. With what is that paradigm replaced in .NET? I have found some solutions that involves the Control.Invoke method. This approach works if you got access to the clients Form handle, but since I am writing a library (and not a control) I don't now how to get that. Instead I get this error message if a I let my class inherit from Control and then call Invoke() "An unhandled exception of type 'System.InvalidOperationException' occurred in system.windows.forms.dll Additional information: Cannot call Invoke or InvokeAsync on a control until the window handle has been created." Do anyone have the solution of how to raise events from a .NET library's worker thread? I would be more than pleased if I anyone gave me some key information! Regards, John Tag: Security: securityexception with web parts (SPSv2) Tag: 50538
  - 7
    - Trust an assembly (not using.net wizards?) Hello all, first of all I'm just a simple system administrator and I have no idea how Framework works - that's why I need your help. Our devoloper team is just in the process of writing a couple of new programs for internal use. They're using C# and their programs require the latest Framework version on every client PC. Using group policies I installed Framework on the clients - no problem there. But what I have a problem with - and where I'd need your help - is when it comes to trusting those applications. Now I have two questions: 1. According to my colleagues you can't write a Framework-based program without security. So everytime you have a new application or change an application you have use the "Trust an assembly"-Wizard on every workstation again. Is that right? 2. If 1.) is right, do you have any idea on how to do that process automatically ... using i.e. group policies and other means. I don't want to run around every couple of days (that's about how often our developers change their programs) to change the trust on about 100 PCs. I couldn't find any info on that on the web. I'm sure it's out there somewhere - but as I have no idea on how the whole .NET and framework things work I hit a wall when it came to understanding the articles. So I gave up my quest for knowledge on the web and kindly ask you to lend me a hand. I'd really appreciate any hint you could give me! Thanks, Christian. Tag: Security: securityexception with web parts (SPSv2) Tag: 50501
  - 8
    - Unloading assemblies Hi all, I'm developing a tool that explores contents of assemblies via reflection. When the tool is requested to get some information from an assembly, it loads the assembly and reads the information. I would like unload the assembly immediately after to prevent it from locking and give the client a possibility to update it. Is there any way to do this? System.Assembly class has no Unload method, so I create separate application domain and load the assembly in this domain. Then I unload the entire domain by AppDomain.Unload call. However it seems that the loaded assemblies are still locked even after unloading the domain. Has anybody ideas about the reasons of such behavior? Or can anyone suggest other ways to solve the problem? Thanks, Dmitry Shaporenkov Tag: Security: securityexception with web parts (SPSv2) Tag: 50496
  - 9
    - Equals and "==" operator Hi, What is the difference between Object.Equals and "==" operator ? When we use CollectionBase.List.Remove(object), which methods is used to compare objects ? Thanks Tag: Security: securityexception with web parts (SPSv2) Tag: 50429
  - 10
    - Special Comment Hi, I noticed that there are some special piece of comments in the source-code generated by Visual Studio.NET when we create a new C# projects. These comments comes with tags like /// <summary> /// Clean up any resources being used. /// </summary> What is the purpose of tags <summary> ? How to use these tag ? Tag: Security: securityexception with web parts (SPSv2) Tag: 50428
  - 11
    - Unloading web application instance w/o trashing aspnet_wp process I have a simple question for the right person, is there a way to unload an application (the resources held by a single virtual directory) from some GUI maybe IIS console, w/o having to reploy or over writting the files in \bin. command line tool maybe...? Tag: Security: securityexception with web parts (SPSv2) Tag: 50402
  - 12
    - Binding IEnumerable derived object This is more of a why question then how. When I bind a key-value collection to a control, I know to set DataTextField and DataValueField to key and value. Although I know how to do this, I can't find where in the MSDN Library this is documented. I only know this from books and Usenet. Upon checking objects like Hashtable and ListDictionary via wincv, I cannot find the properties named key and value, although keys and values exist. How does a control find the key and value fields in a collection? Thanks in advance. Tag: Security: securityexception with web parts (SPSv2) Tag: 50380
  - 13
    - .net framework ·þÎñÆ÷Ò³Ãæ±¨´í£¬ÔõÃ´½â¾ö£¿ ÄãºÃ£¬ÎÒµÄÍøÕ¾ÊÇÓÃ.net framework¿ò¼Ü×öµÄ¡£µ±·ÃÎÊÁ¿´óµ½Ò»¶¨³Ì¶ÈÊ±£¬ÔÚ·ÃÎÊÒ³Ãæ ¾Í±¨´íÎó¡£ ±¨´íÎóÊ±£º 1¡¢cpuÕý³£ 2¡¢ÄÚ´æÕý³£ 3¡¢Êý¾Ý¿âÕý³£ 4¡¢ÆäËüasp or htmÒ³Ãæ¶¼Õý³£¡£ËùÓÐµÄaspxÒ³Ãæ±¨´í¡£ ÎÒÖØÐÂÆô¶¯IISºó£¬»Ö¸´Õý³£¡£ ²Ù×÷ÏµÍ³ÊÇ£ºWIN2000 SERVER+SQL SERVER2000 ÇëÎÊÎÒ¸ÃÈçºÎµ÷Õû£¿ machine.config ÖÐ£¬processModelÒÑ¾×÷¹ýÈçÏÂµ÷Õû£º <processModel enable="true" timeout="Infinite" idleTimeout="Infinite" shutdownTimeout="0:00:05" requestLimit="Infinite" requestQueueLimit="10000" restartQueueLimit="10" memoryLimit="60" webGarden="false" cpuMask="0xffffffff" userName="machine" password="AutoGenerate" logLevel="Errors" clientConnectedCheck="0:00:05" comAuthenticationLevel="Connect" comImpersonationLevel="Impersonate" responseRestartDeadlockInterval="00:09:00" responseDeadlockInterval="00:03:00" maxWorkerThreads="75" maxIoThreads="75"/> ¾ßÌå±¨´íÐÅÏ¢ÈçÏÂ£º Server Error in '/' Application. -------------------------------------------------------------- Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.InvalidOperationException: Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached. Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. -- ********************************************** Benjamin Upmen Group E-mail£ºbenjamin@upmen.com ÍøÖ·£ºwww.upmen.net MSN£ºupmen@msn.com OICQ£º31362 ********************************************** Tag: Security: securityexception with web parts (SPSv2) Tag: 50305
  - 14
    - IIS not retrieving latest version of assembly from GAC I was working on one of my assemblies yesterday which we have in our GAC and is used by a number of our web applications/sites on our intranet. Something strange started happening though. I would compile the program, then do the following in order given: gacutil /u myAssembly gacutil /i myAssembly.dll net stop iisadmin net start w3svc Yet IIS and the web applications conitnued to use the old code, no matter how i played with these steps and the order of them. The only way i could get IIS to use the new code was to open a windows explorer windows to C:\WINNT\Assembly, locate my assembly, right click it and go to properties. Once i did this, IIS would use the new code. This sounds totally bizarre, but i ran the process over and over and over and over, first trying without going to the file, then going to the file, and it was 100% consistent. Can anyone explain this behaviour to me?? TIA - Aaron. Tag: Security: securityexception with web parts (SPSv2) Tag: 50221
  - 15
    - Uploading files up to 150MB onto server Dear all, I am running an online file management server that allows web clients to upload files from a webform to the web server. Using the code "filename.PostedFile.SaveAs(fullPath);" I have no problem uploading file with size up to 25MB, but the page starts to create problem with any size above 25 MB - the error message displayed is "Server Unavailable" or occasionally it just dies off. I am running the web server using ASP.net framework 1.0 developed using C# In the Application Log of the machine's event viewer, I get these message: Event Type: Error Event Source: ASP.NET 1.0.3705.288 Event Category: None Event ID: 1003 Date: 6/26/2003 Time: 10:45:47 AM User: N/A Computer: ROSIE Description: aspnet_wp.exe (PID: 2108) was recycled because it was suspected to be in a deadlocked state. It did not send any responses for pending requests in the last 180 seconds. Event Type: Error Event Source: ASP.NET 1.0.3705.288 Event Category: None Event ID: 1001 Date: 6/26/2003 Time: 9:54:35 AM User: N/A Computer: ROSIE Description: aspnet_wp.exe (PID: 1532) was recycled because memory consumption exceeded the 306 MB (60 percent of available RAM). I'd set the following value on Web.Config, but it still doesn't work: <httpRuntime maxRequestLength="153600" /> Anyone know how to go around this problem? The uploaded file size could be up to 150MB in size. Cheers Rosie Chua Tag: Security: securityexception with web parts (SPSv2) Tag: 50180
  - 16
    - Debugging Shared Assemblies (ex. Custom Controls) Hi Gurus .. I would really appreciate some insights for the problem that bugs me for quite some time. I keep my custom controls in their own shared (private/public key signed) assembly. I need to have it shared. Usually I work with a Web application project that has a reference to my shared, custom controls assembly. Web project is a "Startup Project". I need to be able to set a breakpoint in my Custom Controls (shared) project. VS.NET solution can hold more then one project - that's the most convenient way to go. There is no problem to stop debugger at that breakpoint having all assemblies kept as private. Annoyance begins with shared assemblies and its projects not being set as a startup project. The reference "Copy Local = false" always locks them up producing errors : "The file xxx cannot be copied to the run directory. The process cannot access the file because it is being used by another process". "Copy Local = true" helps to eliminate the error since the reference is no longer kept by public key in my Web application's manifest BUT even though they should be treated at this point as private assemblies I can't seem to get them to debug at all. I keep my shared assemblies in GAC so the reference with "Copy Local = False" at the run time concerns this location. Sometimes I succeed and can debug inside my shared assembly from other startup project but in so indeterministic way. No matter what - locking up shared assembly at the compilation time undermines efficient way of working with multiproject VS.NET solution. Can somebody share any guildlines, experiences ? Best Regards Radek Tag: Security: securityexception with web parts (SPSv2) Tag: 50140

Hi All

This is one for the experts!
I have developed a Web Part (in C#) which should list some entities from
Active Directory using System.DirectoryServices, all compile fine - but
when trying to execute the Web Part on a Web Part Page I keep getting a
"system.security.securityexception".

All comes down to the call:
DirectoryEntry d = new DirectoryEntry(ldapPath);

where ldapPath is any valid LDAP path towards our directory in the
format "LDAP://dc=domain,dc=com/cn=users,dc=domain,dc=com" or something
similar...

I have written tons of code using ADSI and COM and a quick vbs-script to
prove I'm hitting the right ldap-objects also evaluates to true.

However this DirectoryEntry call destoyes the Web Part page and breaks
with the securityexception error. I guess it has something to do with
the security levels in the .Net framework, but I don't know where to
look. I have tried to assign full trust security to my assembly using
the .net 1.1 wizard with no success.

Any inputs anyone...?

Best regards
Michael Ekegren