Answer Questions

• AllNamesAreTakenButThisOne Authentication with the TCP Channel

  Hi there, I'm working with the July CTP of VS.NET and found this article: http://msdn2.microsoft.com/library/59hafwyt(en-us,vs.80).aspx Somebody out there who tried authentication with the tcp channel I have a website that talks over a tcp channel to a marshal-by-ref bussiness layer object that is hosted in a windows service. I want to impersonate my users, so that I can use role-based security in the business layer object. I would really like ...Show All

• Praxidata Updating database

  i have a problem to update my database. in my update button i have the following code: dataset.AcceptChanges() Adapter.Update(dataset.table) i've tried other things like: adapter.update(dataset) swopped the two lines around... it saves the data on the current form, but when i close the form and reopen it, the data never changed in my database. i think the changes get saved in my dataset, but not in my database... but aren't sure... Thanx ...Show All

• Andro_ Data changes not being saved to the .mdf file

  I am working in Visual C# Express Edition, and I am using the Update() method of a TableAdapter. I am using the following C# code to update the database: try { this .Validate(); this.statsDataSetBindingSource.EndEdit(); this .runsTableAdapter.Update( this .statsDataSet.Runs); MessageBox .Show( "Update successful" ); ...Show All

• Dmano Application with Database - what are my options?

  Hi, I want to write an application that stores data in a database file, but only one person will use the database and application. In effect I'm storing the data in a database as its more convenient than e.g. an xml file or a home grown structure. Its unlikely that mutliple users will use the application to share data in the future. I also want to install the application easily on other machines and don't want to pay any runtime license fees, ...Show All

• a-roba Exception Handling DO NOT WORK!! Help Please!@!

  Hi. I want that you think with me... When i put a try-catch exception handler block in an application what i expect from it i expect that it will handle the error and begin the normal flow of the application. Now, you aswer me, why it doesn’t work in this scenary : I have one Form1 (Project > Add New > Form, nothing different), and another Form2 and one Form3. i’m proud of my creativity for names. Form1 : private void Form1 ...Show All

• Assimalyst Assorted warnings and error messages.

  Do this in production VS 2005 Pro. 1. Creat a new data set and add an element. Save. 2. View the xsd file in the XML editor. ( I know I know I shouldn't fiddle with what's under the hood, but ...:-) You now get a warning: The attribute 'SchemaSerializationMode' is not declared. And a whole bunch of errors like: Could not find schema information for the attribute 'urn:shemas-microsoft-com.xml-msprop:Generator_RowClassName'. wher ...Show All

• AndreiNK Why Namespace xmlns="" always in Child element when use IXMLDOMDocument2Ptr?

  I use IXMLDOMDocument2Ptr to create a root element. Then, use setAttribute to set Namespace xmlns. Then use IXMLDOMDocument2Ptr to create a child element. To my supprise, xmlns="" is always attached to child element. Anyone can tell me how to avoid this problem Thanks! Helena: You are right. We must use createNode with default namespace xmlns=".....". And also, we have to do this for all nodes. ...Show All

• DavidChai .NET Framework - hotfix. Can I discard the original Framework?

  I don't know where else to post this, but I just received an automated update hotfix for my .Net Framework that is 1,114 megs...this is in addition to the original .Net Framework that is also 1,114 megs. That's taking up too much of my disk space. I'd like to remove one of them if I can, but I don't know anything about the pros and the cons. Can I just remove the original and use the hotfix in it's place Thanks, Paul Hi, You do not h ...Show All

• PierreE Unclosed Literal String

  I have an XML with an attribute called Text="Procedures & Practices"  in the XML, I replace the & with & and send it to a web service.  On the web service side, when I attempt to load the xml, I get the following error: There is an unclosed literal string. line 2, position 762 Any ideas I'm using string... will XML Element work for a 20 node XML doc Either way this should not happen. The XML Serializer us ...Show All

• Shawn Anderson 020564 WebClient with Progress bar

  I am writing a small application which allows user to enter an URL then download a file on the net. In addition, I use the progress bar to show the downloading status. These code as below using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.Net; namespace DowloaderProgress {     public partial class Form1 ...Show All

• GoldenBrown Securing Connection String

  How can i secure my database connection string in asp.net 1.0 web appliction Thanks in advance kailux Hi, Take a look at this MSDN documentation on web application security and see if it helps: http://msdn.microsoft.com/library/default.asp url=/library/en-us/cpguide/html/cpconaspnetwebapplicationsecurity.asp Feel free to post again if you have more specific questions for your scenario. Thanks. ...Show All

• smurrell Windows Form performance

  Hi. I realise that this post may be a bit general, but Im really after some hints/tips as to where to start. We recently took ownership of a .net 1.1 windows forms application. I have about a years experience with .net and about 6/7 with java awt/swing. This front end application was developed by another team and in my opinion, is very poorly coded. It is a direct replacement to a java awt gui and it makes exactly the same backend calls (through ...Show All

• George Jordanov Ivanov FtpWebRequest

  .NET Framework 2.0 c#   I need to access a FTP Server. I'm using FTPWebRequest as described in visual studio 2005 documentation. Everything works fine except the following: 1) I dont know how to change de current working directory on the server to the parent directory 2) Why cant I do this, or why doesn't work In Internet explorer works! 3) how can I send some FTP low levels commands to the server using .net 2.0 ftp api. < ...Show All

• Rob Smith FCL exposed to COM

  I noticed that that the FCL is exposed to COM in the form of .tlb's in C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727. I have also noticed that, in COM, every class needs an interface to expose its methods. For example, the class ShellLink has an interface called IShellLink, through which you can get an instance and call the methods in the vtable. Do these .tlb's have interfaces defined for the classes i.e. in System.Windows.Forms.tlb does there ...Show All

• Dave9999 System.Runtime.InteropServices.COMException in Windows 98

  I have developed window application using VS2005 and .NET 2.0 on Windows XP machine. I have made setup project and deployed my application to Windows 2000,Windows XP and Windows 98 machine. (All installations are fresh) Application works well in Windows XP & 2000 but it is not working in Windows 98. There are two errors 1 Error) Retrieving the COM Class Factory for componen with CLSID failed with HRESULT: 0x8004015 (Class not registe ...Show All