Answer Questions

• vbcoderwquestion How to dynamically load schema from a file and then assign to xmldocument and validate it

  I am creating in memory xmldocument. Previously I were validating my file against a dtd file and then by the help of GetElementByID read my needed node. i.e. XmlDocumentType doctype = null; doctype = statementsDocument.CreateDocumentType("queries", null,statementsPath +"\\Validation.dtd", null); statementsDocument.AppendChild(doctype); nodeElem = statementsDocument.CreateElement("queries"); statementsDocument.Appen ...Show All

• padlewski Relations in DataSet

  I have a situation where i should update the relations from dataset to the database. Can some one can help me how to do this. Thanking you Ramakrishna Unfortunatelly there is no support for DDL. You'll have to issue your own sql ddl commands or go any similar way - it shouldn't be too difficult. Can you please explain me little detaildly how navigte through relations and how to use SMO and . I want to update relatio ...Show All

• Sandy L Delay in TcpListener/TcpClient

  Hi all! I have an application (let's call it application C) running 4 TcpClient, each connected to a different application that runs a TcpListener (let's call them applications S1, S2, S3 and S4). All 5 applications run on localhost, and i'm using TcpListener/TcpClient for inter-process comunication. At a certain point in my application C, i start sending plain text messages from C to S1, S2, S3 and S4, sequentially, and once every 100ms, aprox ...Show All

• kencol Why there is a huge jump in the time used?

  Hi, I've a quetion which has bugged me for several months. I wrote a .NET Web service which is hosted by IIS 5.1 on a Windows XP SP2 machine. This Web service just get the content of the specified txt file and send the content back to the client. The processing time on the server side was logged. The file sizes and results are listed below (in millisecond): FileSize:     1K       2K  &n ...Show All

• Edypion DataSet bug when read from XML

  There is a bug in table constraint enforcement when the DataSet schema is read from XML.  If you remove a DataColumn from a table, the code that checks non-null constraints doesn't register that a column has been removed.  The following code will generate an IndexOutOfRangeException. namespace ConstraintTest { class ConstraintTest { [STAThread] static void Main( string [] args) { DataSet ds; // Read the schema for a two colu ...Show All

• Clark Anderson XPath and namespace problem

  I am having trouble with SelectNodes with namespaces. I am testing with the .application file generated by the Publish wizard. Below is the part that my code will operate on: < xml version="1.0" encoding="utf-8" > <asmv1:assembly xsi:schemaLocation="urn:schemas-microsoft-com:asm.v1 assembly.adaptive.xsd" manifestVersion="1.0" xmlns:dsig="http://www.w3.org/2000/09/xmldsig#" xmlns="urn:schemas-microsoft-com:asm.v2" xmlns:asmv1="urn:schem ...Show All

• Chris Mazur Prepending data in a log file

  I can open a file with filemode Append. What I really want is prepend, so the latest records are at the 'top'. Is there an efficient way to do this for log files which may be quite large and updated quite frequently Or is the solution to provide a viewer that displays the data "upside-down" Heloo Bonskijr Unfortunately that still has the same amount of IO as opening an output stream, writing th ...Show All

• Henk vd Geld Timer function with millaseconds elapsed (in dos/command-line)

  I was working on a small simple program, emulating the old loading screens I used to see for old Dos games I played, where the top-left side of the screen had a rotating graphic: | / - \ | / - \ repeat from left to right, the characters were displayed one at a time, and it looked like a spinning line anyways, I need a timer function to time the characters to appear on screen, but I've searched everywhere, the MSDN library, other w ...Show All

• hueys System.AccessViolationException in .NET 2.0 ServiceBase sample

  Hi I am trying to get the sample code at   http://msdn2.microsoft.com/en-us/library/5xh5cfw0(en-US,VS.80).aspx up and running, but  get an AccessViolationException. The exception occurs  where a call is made to [DllImport("ADVAPI32.DLL", EntryPoint = "SetServiceStatus")]         public static extern bool SetServiceStatus(             & ...Show All

• Robin Speed can not create an SQLConnection object

  I am getting an initialization exception when I instantiate SQLConnection. The exception occurs emediately upon creating an instance and does not depend on whether I supply a connection string for the constructor. The odd thing is that I am not getting this error on my development computer, only when I install it on a different computer. The computer giving the exception has .Net 2.0 installed from the redistributable which I downloaded fr ...Show All

• Marius H n-tier application (typed Dataset)

  I have created an n-tier application. The client side (win forms) calls the business layer. Business layer calls the webservice and the webservice calls the data layer. The datalayer gets the data using typed datasets. In the datalayer I have created a .xsd file In this layer I can use this typed dataset to work with the dataset. For example refer to the column of the table using the typed dataset. The problem is that How can i be able to refer ...Show All

• duck123 Web Service Security issues

  I intend to create a webservice which provides a service for updating a clients data at a remote location. In other words, this service will update values stored in the database. Other than making sure that a user may not access others' data, are there any security concerns i should be wary of by allowing a web service to interact with a database (although it will have to use the systems database handler class to do so)  I intend to se ...Show All

• Island1 system.objecr

  hello all, In .Net framework, every class is a class of system.object, how can we proof this. thanks For example with a Reflector: http://www.aisto.com/roeder/dotnet/ ...Show All

• Gauthier Update requires a valid UpdateCommand when passed DataRow collection with modified rows.

  It is my understanding that when using a TableAdapter and selecting the proper options, Insert, Delete and Update statements are generated. The Update statement should work just using the following: myTableAdapter.Update(changes); Where changes is the DataSet containing the modified data. This logic works great for one of the tables in the DB but not for another. Learning this new stuff is Confusing at best - Frustrating at worst. Help appre ...Show All

• An_Cala creating web reference in IDE

  When trying to add a web reference of a web service which is published through Marshaling (remoting) I receive an error message. The custom tool "MSDiscoCodeGenerator" failed unable to inport binding "<name of reference>binding" from namespace... I'm running VS 2005 professional edition release. on Windows XP. I had no such problem when using the VS 2005 Beta. Anyone have an idea ! I had the ...Show All