.NET (Core and Framework)

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Re: Exclusive Access with .NET OLE DB Jamie Nordmeyer17-Apr-03 5:31 Jamie Nordmeyer 17-Apr-03 5:31  Cool, that's what I needed! I normally don't like using .udl's, but I can, of course, steal it's connectionString, then delete it. Duh! Thanks a bunch, Mike! Kyosa Jamie Nordmeyer - Cho Dan Portland, Oregon, USA Reading RSA key from File Heath Stewart15-Apr-03 4:53 Heath Stewart 15-Apr-03 4:53  I'm having problems figuring out how the read the RSA keys from either the KeyFile.snk file generated from sn.exe -k KeyFile.snk or from our signed assembly that uses that KeyFile (which would be preferred). Does anyone have any ideas how I can read these in? About the only method I found was to create an RSAParameters struct and fill it with the base64-encoded data from the public key, but I'd have to dig into RSA a little to figure out the byte alignment and what not. I don't mind doing that, but I'm hoping there's already a method or something that does this in the .NET Framework class library. Anyone know of any? Reminiscent of my younger years... 10 LOAD "SCISSORS" 20 RUN Can I design a webserivce with c#,now I want use it with c++ and webservice have session state wxdwxd13-Apr-03 16:55 wxdwxd 13-Apr-03 16:55  I design a webservice with c#, this webservice have some [WebMethod(EnableSession=true)]'s method but when I use it with c++,Session lose why? thanks, codeproject Can't 'design' UserControl moredip13-Apr-03 4:01 moredip 13-Apr-03 4:01  **CROSSPOSTED TO VS .NET IDE ISSUES FORUM** Hi all, I've got a class called RowView derived from UserControl, which is itself the parent of another class (AuthorView). RowView has a public property Data. Since RowView should never be instantiated directly (it's a pseudo-abstract class) it doesn't implement Data, it simply throws a NotSupportedException. My AuthorView class does implement Data. Now my problem is that whenever I try and 'design' AuthorView in VS .NET the designer tries to access RowView.Data, which throws an exception. So my question is, how do I stop VS .NET's designer from attempting to access Data. I've tried settig the Browsable attribute to false in RowView.Data, but it doesn't help. I can post up some code if that'll help clarify the situation. TIA, Pete Re: Can't 'design' UserControl Roger Alsing22-Apr-03 23:21 Roger Alsing 22-Apr-03 23:21  you can always chekc if you are in designmode (this.designmode) and NOT throw the exception if you are in design mode.. not that this is a solution but i suppose it will atleast let you continue working on your controls untill you find a solution for this... //Roger Re: Can't 'design' UserControl moredip23-Apr-03 0:24 moredip 23-Apr-03 0:24  Funny, that's exactly what I did do And I was thinking the same thing: "Hmm, this can't be the right way to do this... Ah well, at least I can keep coding while I wait for some kind of solution.." Thanks Roger, Pete initial validation of controls moredip12-Apr-03 14:17 moredip 12-Apr-03 14:17  Anyone know how I can get a control to validate itself? I have a nice event handler for Validating which changes the colour of a textbox if it's contents aren't suitable. I'd like the controls to initially start out in the correct state, but at the moment they only validate themselves if I focus on them then defocus. Any ideas? TIA, Pete Re: initial validation of controls Sumeet Rattan17-Apr-03 2:33 Sumeet Rattan 17-Apr-03 2:33  If you have small number of controls to validate It is a fine idea to do so with a schema like: (OnFocus - OnBlur) But if the number of controls is large say 20-25 controls then it is always a good idea to validate controls using a seperate routine. If you want your controls to be self sufficient you can derive them from existing controls then override and add new properties. Override the required events (e.g. Focus etc...) Provide a Delegate Add new event handler And do any thing you want in the handler Hope this helps Happy Programming -- Sumeet NumberBox - a simple digits only textbox moredip12-Apr-03 8:43 moredip 12-Apr-03 8:43  Hi all, can anyone see anything glaringly wrong with this: public class NumberBox : TextBox { protected override void OnKeyPress( KeyPressEventArgs e ) { if( !char.IsDigit(e.KeyChar) && !char.IsControl(e.KeyChar) ) e.Handled = true; base.OnKeyPress( e ); } } It doesn't have to be super-secure or anything (I don't care about Ctrl-V etc) cause I validate the control's Text later anyway, it's just a quick and easy way to persuade my lovely users to only enter numbers. So I was just wondering if anyone can spot any usability problems with this? I'm not worried about negative numbers pasting in incorrect data, etc decimal points and thousand seperators TIA, Pete Re: NumberBox - a simple digits only textbox J. Dunlap12-Apr-03 9:34 J. Dunlap 12-Apr-03 9:34  Looks fine to me! Are you getting errors? "Do unto others as you would have them do unto you." - Jesus "An eye for an eye only makes the whole world blind." - Mahatma Gandhi Re: NumberBox - a simple digits only textbox moredip12-Apr-03 12:02 moredip 12-Apr-03 12:02  No, I was just wondering if there were some subtle caveats that I'd missed - that always seems to be the way when I play with new class libraries Re: NumberBox - a simple digits only textbox ian mariano13-Apr-03 12:07 ian mariano 13-Apr-03 12:07  You're still calling base.OnKeyPress, which will just let TextBox handle it. Your code should read: if ( !char.IsDigit(e.KeyChar) && !char.IsControl(e.KeyChar) ) { e.Handled = true; return; } base.OnKeyPress(e); "The greatest danger to humanity is humanity without an open mind."   - Ian Mariano - http://www.ian-space.com/ Re: NumberBox - a simple digits only textbox moredip13-Apr-03 12:11 moredip 13-Apr-03 12:11  I know I'm still calling OnKeyPress(). It seems to work that way, because e.Handled = true. I wasn't sure wether to call it or not, I figured that it was best to call it just in case the Framework has to do some kind of housekeeping. Re: NumberBox - a simple digits only textbox ian mariano13-Apr-03 12:48 ian mariano 13-Apr-03 12:48  Nah, the e.Handled takes care of the underlying Win32 housekeeping behind the scenes. [I'm sure you realize this, but my comments below are for our gentle OOP neophytes out there...] You should only call base functions a) if they're required (see the reference dox for the base methods) or b) if you wish to use the default base implementation. In the case of your derived TextBox class, you wouldn't want to call base.OnKeyPress() because you don't want the default behavior. "The greatest danger to humanity is humanity without an open mind."   - Ian Mariano - http://www.ian-space.com/ Re: NumberBox - a simple digits only textbox moredip13-Apr-03 12:57 moredip 13-Apr-03 12:57  I see what you mean. I guess I'm finding it a little hard to get used to C# properties. It didn't really occur to me that a simple boolean 'assignment' could actually kickoff a lot of behind-the-scenes processing. My thinking was "Ok, I'll set e.Handled then pass it to the base method so it knows I've dealt with it" Baby steps... Thanks Ian, Pete Debugging remoted class hosted by IIS David Thom11-Apr-03 8:09 David Thom 11-Apr-03 8:09  I've got a .NET class that's being hosted for remoting by IIS (NOT a WebService). Works fine, except for debugging it... How can I debug it with Visual Studio.NET? What kind of VS.NET project would I use? In particular, how can I configure VS.NET to allow me to breakpoint in the remoted class? Thanks! Web Service Problems rantinori10-Apr-03 10:57 rantinori 10-Apr-03 10:57  I recieve this error when running the Hello World .NET sample web service on windows XP Professional with IIS 5x. What am I missing? Regards, Ron System.IO.FileNotFoundException: File or assembly name ogvvgnwu.dll, or one of its dependencies, was not found. File name: "ogvvgnwu.dll" at System.Reflection.Assembly.nLoad(AssemblyName fileName, String codeBase, Boolean isStringized, Evidence assemblySecurity, Boolean throwOnFileNotFound, Assembly locationHint, StackCrawlMark& stackMark) at System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Boolean stringized, Evidence assemblySecurity, StackCrawlMark& stackMark) at System.Reflection.Assembly.Load(AssemblyName assemblyRef) at System.CodeDom.Compiler.CompilerResults.get_CompiledAssembly() at System.Xml.Serialization.Compiler.Compile() at System.Xml.Serialization.TempAssembly..ctor(XmlMapping[] xmlMappings) at System.Xml.Serialization.XmlSerializer.FromMappings(XmlMapping[] mappings) at System.Web.Services.Protocols.XmlReturn.GetInitializers(LogicalMethodInfo[] methodInfos) at System.Web.Services.Protocols.XmlReturnWriter.GetInitializers(LogicalMethodInfo[] methodInfos) at System.Web.Services.Protocols.MimeFormatter.GetInitializers(Type type, LogicalMethodInfo[] methodInfos) at System.Web.Services.Protocols.HttpServerType..ctor(Type type) at System.Web.Services.Protocols.HttpServerProtocol.Initialize() at System.Web.Services.Protocols.ServerProtocol.SetContext(Type type, HttpContext context, HttpRequest request, HttpResponse response) at System.Web.Services.Protocols.ServerProtocolFactory.Create(Type type, HttpContext context, HttpRequest request, HttpResponse response, Boolean& abortProcessing) Fusion log follows: === Pre-bind state information === LOG: Where-ref bind. Location = C:\WINDOWS\TEMP\ogvvgnwu.dll LOG: Appbase = file:///c:/inetpub/wwwroot/RainMakerLists LOG: Initial PrivatePath = bin Calling assembly : (Unknown). === LOG: Policy not being applied to reference at this time (private, custom, partial, or location-based assembly bind). LOG: Attempting download of new URL file:///C:/WINDOWS/TEMP/ogvvgnwu.dll. TRYING to install .NET 1.1.... J. Dunlap10-Apr-03 10:18 J. Dunlap 10-Apr-03 10:18  You are supposed to install the .NET Framework 1.1 through Windows Update, but when I try to do so, setup fails. No reason, no anything. Just The following items failed to install. To try installing them again, click Review and install updates, and then click Install Now again. Microsoft .NET Framework version 1.1 Nowhere on the MS site does it tell me whether I have to uninstall 1.1 beta before installing 1.1. On top of that, the .NET framework is supposed to show up in the Add/Remove Programs Control Panel applet, but even though I have both 1.0 and 1.1 beta, neither show up. HELP! "Do unto others as you would have them do unto you." - Jesus "An eye for an eye only makes the whole world blind." - Mahatma Gandhi Re: TRYING to install .NET 1.1.... J. Dunlap10-Apr-03 10:41 J. Dunlap 10-Apr-03 10:41  What I really need to know is where is the uninstall program/msi for the .NET framework? "Do unto others as you would have them do unto you." - Jesus "An eye for an eye only makes the whole world blind." - Mahatma Gandhi Re: HELP!!! TRYING to install .NET 1.1.... J. Dunlap10-Apr-03 16:47 J. Dunlap 10-Apr-03 16:47  Downloaded the redistributable and tried to install it. It said: Before installing this product, you must uninstall the following Beta product: Microsoft .NET Framework 1.1 Beta. ;P;P;P;P;P;P;P;P;P;P;P;P;P;P;P;P;P;P;P;P;P But, when I go to uninstall the 1.1 Beta, the uninstall says: This action is only valid for products that are already installed. Hey, Microsoft, which one is true???? "Do unto others as you would have them do unto you." - Jesus "An eye for an eye only makes the whole world blind." - Mahatma Gandhi Re: HELP!!! TRYING to install .NET 1.1.... Richard Deeming11-Apr-03 0:59 Richard Deeming 11-Apr-03 0:59  You should probably rebuild your machine, but as a last resort, you could use the Windows Installer Cleanup utility to remove the references to the beta. http://support.microsoft.com/default.aspx?scid=KB;en-us;q240116[^] "These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer Re: HELP!!! TRYING to install .NET 1.1.... J. Dunlap11-Apr-03 8:02 J. Dunlap 11-Apr-03 8:02  Thanks so much for your info! The Installer Cleanup Utility did it! I'm very relieved, because I could not afford the 12+ hours it would take to rebuild. "Do unto others as you would have them do unto you." - Jesus "An eye for an eye only makes the whole world blind." - Mahatma Gandhi Same Browser and Form graphic intergace yro10-Apr-03 6:04 yro 10-Apr-03 6:04  How can I get the same graphic user interface form browser and form applications in DotNet? Thanks, Renato Oliveira Re: Same Browser and Form graphic intergace Stephane Rodriguez.10-Apr-03 6:33 Stephane Rodriguez. 10-Apr-03 6:33  VS.NET IDE / Toolbox / Right-click / Customize / Browse Microsoft Internet Explorer. Drag&drop it onto your form. You are done (almost). Installing Primary Interop Assemblies Mike Dimmick10-Apr-03 3:31 Mike Dimmick 10-Apr-03 3:31  We have a server product for which third-parties can create installable applications. The applications are written as COM components. As such, we've generated a pair of Primary Interop Assemblies for the components needed for the application to talk to the server. We've created a deployment package using Visual Studio.NET which installs the PIAs to the Global Assembly Cache. It doesn't however currently install to the Primary Interop Assemblies directory from which VS.NET finds available PIAs. I can create a 'Program Files\Microsoft.NET\Primary Interop Assemblies' directory as part of the installer; is this going to work on non-English systems, or should I be trying to find the right folder through the registry, or some Windows Installer property? <shameless plug> More info on the server at http://www.5d.co.uk/Meteor.htm. -- Mike Dimmick

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