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- Previous
  - 1
    - Lack of Unsigned CLS-Compliant Types in .NET I'm wrapping a native C++ API with MC++. One of the things that I have found frustrating is the fact that most (if not all) unsigned types in .NET are not CLS-Compliant. So, to me, that means you can't use them, say, as arguments in a method because a particular .NET language is not required to support those types. The C++ API has a lot of paramters that are U8, U16, and U32 types. Since the equivalent types in .NET are not CLS-compliant, I find my self using a larger signed type to hold the possible non-negative values of the corresponding unsigned type. For instance, for a U32 in the C++ API, I have to use an Int64 in .NET. While, this works, it's just sort of messy. For example, it forces you to do runtime checks on numbers that are larger than can fit in a U32 in case someone passes in a really large number in a method call (e.g. someone calling a method that takes an Int64 could pass in 4,294,967,306 - this is too large for a U32). I was just curious if there is a better way to handle this? Not making unsigned types CLS-compliant seems somewhat short-sighted to me, but maybe I'm wrong. Any thoughts? Thanks, Tim Rogers Tag: Primary Key Tag: 55686
  - 2
    - ASP.Net and client side control (SelectedIndexChanged) I was wondering what capabilities ASP.Net has at the client level. I have been using a RadioButtonList. My control and additional textboxes look like this: o See item number [ ] o See items from Date [ ] to date [ ] I have the method defined for SelectedIndexChanged event. Basically, I am trying to clear and disable the text selections for the unselected item. Example: private void RadioButtonList1_SelectedIndexChanged(object sender, System.EventArgs e) { if (RadioButtonList1.SelectedValue.ToString() == "ItemNumber") { txtFromDate.Text = ""; txtToDate.Text = ""; txtFromDate.Enabled = false; txtToDate.Enabled = false; txtItemNumber.Enabled = true; } } The problem is that my SelectedIndexChanged event does not fire until the post. I can set the AutoPost=True, but this is still doing a post. That seems like a lot of traffic (back to the server and running code again, etc) just to disable some client level fields. I should be able to do this all on the client because the server does not need to know this information. Well, I could fall back by writing some JScript to do this for me, but I thought there would be a native way for ASP.Net to handle this. Does anyone have any ideas? Thanks in advance! Tag: Primary Key Tag: 55684
  - 3
    - Get IntPtr for a byte array I have a third party Dll with a function which requires an IntPtr but the data is in a byte array. I need to get the IntPtr for this byte array so I can pass it into the function. Thanks in advance, ~Logan Tag: Primary Key Tag: 55681
  - 4
    - Primary key Can a primary key be permantly set in a VFP table contained within a DBC as I'm trying to connect a DBC database to a .net 2003 application but due to a primary key not being permantly set the application want allow deletions or updates to the database. I am using the ODBC VFP connection drivers to connect the database to .net. I have added the primary key to the table in the DBC but it want be active unless the order is set to it, but from the SQL statement in .net it want allow any order to be set. Does anyone know if there are issues with updating & deleting from a VFP Database using .net. Thank you James Gardiner Tag: Primary Key Tag: 55680
  - 5
    - File or assembly name System.Windows.Forms error in Visual Studio.NET Beta 2. I am using Visual Studio .NET Beta 2, because this is the only version I could get. I installed it. Had some problems with starting it. I was getting a message like this: "Visual studio was installed under another user". I found out that the way to go around it is to delete the key from registery. After that it starts and I can create procjects and everything, but I can't compile asp.net pages and can't view web.config or global.asax. The error I get is: Resource transformation failed for file : WebForm1.aspx.resx. File or assembly name System.Windows.Forms, or one of its dependencies, was not found. I can't figure this one out. Please Help. Andrzej Tag: Primary Key Tag: 55679
  - 6
    - Accessing VB6 activex exe in a .net Windows Service I've been able to acces my VB6 ActiveX Exe via a console application by building a wrapper around my component. But when I do the same thing using a windows service, I get an error during execution saying FileNotFoundException for the ActiveX Exe. This ActiveX exe component is registered on my computer. Is it possible to do this with a Windows Service written under .net? If so, what am I doing wrong. I've added the reference for the component, then did the following: Dim oMyObject as MyACTIVEXComponent.clsServer oMyObject = new MyActiveXComponent.clsServer Like I said, this works with the Console Application, but not with the windows service. Tag: Primary Key Tag: 55674
  - 7
    - Visual Studio's Context Menu Hi, How can I add a menu options to the context menu in the ide? I know how to add an option to the commandbar. I am trying to write an add-in that is invoked by right- click in the ide. Thanks Tag: Primary Key Tag: 55672
  - 8
    - PDF/RTF Conversion Hello Guys, I want to convert all general documents like (doc, xls, txt, ...etc) in pdf. Also my requirenment is to first merge 2 or more documents of same or different types and then convert the merge result to pdf. Like merge one doc and one xls and convert it to pdf. Original doc and xls remains the same. I want to do above through programming in .NET. I also want to convert same in rtf, like doc to rtf, or xls to rtf, or 1 doc + 1 xls to rtf. So if anybody has already spend some time, it would be a great help required for me. Waiting for positive responses !! Regards, Tushar Tag: Primary Key Tag: 55668
  - 9
    - Directory Services Hi, i am using VS 2002. and unable to find System.DirectoryServices. anyone can help me? it says "the type or NameSpace name is not found". Tag: Primary Key Tag: 55662
  - 10
    - O/R Mapping tool like Apple has.....for .NET?!?! Hi! I post this text 1 year ago. But no one really could give me an answer. This is the text that I posted long time ago: I have a fundamental question about The way .NET handles the object orientated way of Persistence. I am coming from JAVA and WebObjects (Apple) World and I am looking for a convenient way of working with objects without seeing any SQL statements only objects. I have used that approach for years on the WebObjects Platform (Enterprise Object Framework) and in Java recently (Container Managed Persistence). I am looking for something like that in the Microsoft world. As far as I understand Microsoft does not distinguish between the Object Model and the Relational Model. The main difference is that the Object model allows n : m relationships and the Relational does not allow them. Here a small example to visualize the problem: Example: There is a Patient object with following Attributes String patientGUID; String name; Int age; Hashtable diseases; (or some other Container like Collection or Array) And there is a Disease Object String diseaseGUID; String name; In the object Model there is relation between Patient and Disease where the patient has his diseases but on the other site one disease can belong to 1..* patients. (n : m) That n : m relationship can not exist within a relational database without a link table that contains the connections between the tables: Patient and Disease. Now, I would like to connect the object Model containing TWO Entities (Patient, Disease) with the relational database (containing THREE tables). Then I want to work with my objects; e.g. create new diseases connect them to existing patients by putting the diseases into the array or create new Patients and connect them with already existing diseases or just change a Patients name. When I am finished I just want to say SAVECHANGES and the database is updated accordingly including all link table entries. So all I have to care about are my objects and the relations between them, some invisible layer does all the dirty work like building SQL, converting the data types and caching. So if I fetch a Patient with a specified GUID I do not have to care about fetching his diseases. They are fetched automatically. If there are too many Diseases I do not care some kind of algorithm handles that problem in such a way that if I have to search all of them for something they are simply there. They are loaded on demand (lazy evaluation) Supposing that the disease has a further connection with some DiseaseType Object/Table and that table has an attribute/column "Description" I can access it by typing the following code: TextField1.Text = currentDisease.type().description() Please note that to retrieve the description value I did only fetch the Patient. The diseases and its types were fetched automatically. Is something like that possible or am I excepting too much of the .NET? ------------------------------------------------------------------- This tool should be a mixture between Microsoft Visio (I mean ORM modelling) and a good object-to-relational mapping tool. Is something like that NOW available???? thx! gicio Tag: Primary Key Tag: 55661
  - 11
    - Problem in listening on TcpClient ............... when i am listening on any port using TcpClient bufferedstream available method , No reponse comes .Program hangs there or u can say does not come out of the read method tc is TcpClient ns is networkstream ns = tc.getStream(); while( ns.DataAvailable ) { try { rec=bs.ReadByte(); Console.Write(rec); Console.Write("\n"); }catch(System.IO.EndOfStreamException) { Console.WriteLine("EndOfStreamException Received "); } } Can anyone help me that in which way i can read socket correctly.. Tag: Primary Key Tag: 55657
  - 12
    - .Net remoting newbie I'm trying to set up the following: 1. a C# server is instantiated by our hosting application on computer A. 2. a C# client on computer B gets a reference to the server with nothing more than the server's URI (or URL, I still don't see the difference). I've found some good documentation on how to create a server that derives from System.MarshalByRefObject, and activate it with the desired URI using System.Rumtime.Remoting.RemotingConfiguration. I cannot, however, find how a client can get an object reference by URI. I am finding plenty of examples where the server is just-in-time created after a client request, but I need the server to run even if there are no clients. Another stupid question, how do I read a server's URI after activation? I see that the System.Runtime.Remoting.Channels.ChannelServices has a static GetUrlsForObject method, is that how I do it? I guess I'm old fashioned in that I believe that if an object has a property, it should expose it through accessors - you shouldn't have to pass your object into a static method on a third party object. Tag: Primary Key Tag: 55655
  - 13
    - .Net network layer have DNS caching flaw? We have an asp.net app that makes an http request call to a server by dns name (there are 3 vips associated with this dns name). For some reason, all our calls are resolving to only one of the VIPs. Running an nslookup command shows all 3 IP address of the 3 VIPs (in different orders on each call); this confirms that DNS is not favoring any of these addresses; it was clearly doing a round-robin. We tried setting the TTL value to 1/0 but this did not work; most calls were still going to the one vip. Running "ipconfig/dnsflush" did not work either. If dns is not the problem, then can .net be the issue? The code leaves the dns resolution to the .NET Framework network layer (the ServicePoint class). We don't explicitly do anything to those objects. Is it possible that this resolves the IP address and caches it? Tag: Primary Key Tag: 55652
  - 14
    - Explicit interface indexer implementations? Is there a way to explicityly implement an interfaces indexer? I need to create a collection class, that implements IList, ICollection, and IEnumerable. I'd like to create a custom indexer, with a return value of my choosing, rather than object. Whenever I try, though, the compiler spits out an error (I use C#, BTW). I've tried simply implementing object this[int index] in addition to MyClass this[int index], but got an error. I also tried IList.this[int index] in addition to MyClass this[int index] but also got an error. How does one explicityly implement the indexer of an interface so you can implement a custom one? Thanks for the help. Jon Rista Tag: Primary Key Tag: 55650
  - 15
    - ADO.net Got speed ?!?! I recently upgraded from VB6 to VB.net and decided that i would like to update a program i use a lot. The Program Connects to a M$ access database (access 2000). It reads in server logs and parses the infomation using the Split command and a select statement to pick out appropriate words. It then inserts each 'record' (each line in the server log contains 1 record) into the database. Under VB6 i used DAO (of course) and my program was fine. The searching was Fast, the data retreival was fast, the input FAST. It took less than 2 seconds to parse a single log file and insert the whole thing into the database. I timed it. To parse 62,398 records it took 6 minutes 23 seconds, Give or take 10 seconds. Now i switched to ADO.net (thinking new = better :oops:) I use Datasets to populate a Datagrid (easy and fast). I use dataadapters to insert the info to the database by updating the datset and using the .update command. Now i guess my question is why does it take my program 38 minutes 54 seconds (give or take 1 minute) to parse 62,398 records? ??!?!!?!?!?!? When i insert the data i dont fill any datasets (something which could if in a loop add vital seconds to each loop) i dont do anything other than add the data then update. Now i cant for the Life of me imagine that the M$ programmers Butchered the SPlit Code. So in my opinion i rule that out. So im afriad the only thing left is the data access.... Sample Code:: ----------------- PlayerDA.InsertCommand = New OleDbCommand("INSERT INTO Players ([Date], [Time], Name, WonID, IPAddress) Values(?,?,?,?,?)", DBConnection) PlayerDA.InsertCommand.CommandType = CommandType.Text PlayerDA.InsertCommand.Parameters.Add("@Date", OleDbType.Char, 50, "Date") PlayerDA.InsertCommand.Parameters.Add("@Time", OleDbType.Char, 50, "Time") PlayerDA.InsertCommand.Parameters.Add("@Name", OleDbType.Char, 50, "Name") PlayerDA.InsertCommand.Parameters.Add("@WonID", OleDbType.Char, 50, "WonID") PlayerDA.InsertCommand.Parameters.Add ("@IPAddress", OleDbType.Char, 50, "IPAddress") DBConnection.Open() Dim newRow As DataRow = DataSet1.Tables ("Players").NewRow() newRow("Date") = "" newRow("Time") = "" newRow("Name") = "" newRow("WonID") = "" newRow("IPAddress") = "" DataSet1.Tables("players").Rows.Add(newRow) PlayerDA.Update(DataSet1, "Players") DBConnection.Close() ---------------- Insert blank... is it that ^^^ ? or is it my Split code? Sample Code: ------------------------------ Do Until LineCount = NumberOfLinesInLogFile UnformattedLogLine = LogFile(LineCount).Word UnformattedLogLineSplit = Split (UnformattedLogLine, " ") UnFormattedLogLineNumOfValues = UBound (UnformattedLogLineSplit) 'Formatting the Info Do Until GettingParsedValues > UnFormattedLogLineNumOfValues Select Case GettingParsedValues Case 0 Case 1 Case 2 Temp = UnformattedLogLineSplit (GettingParsedValues) ParsedArray(0) = Temp.Trim (TrimValues.ToCharArray()) Case 3 Temp = UnformattedLogLineSplit (GettingParsedValues) ParsedArray(1) = Temp.Trim (TrimValues.ToCharArray()) Case 4 GettingName = Split (UnformattedLogLine, "NAME:") GettingNameUpper = UBound (GettingName) If GettingNameUpper > 1 Then GettingNameFoundToSplit = GettingName(1) GettingName2 = Split (GettingNameFoundToSplit, ",") Name = Trim(GettingName2(0)) ParsedArray(2) = Name Else GettingName = Split (UnformattedLogLine, " ") Name = Trim(GettingName(4)) ParsedArray(2) = Name End If Case 5 Case 6 Case 7 GettingWonID = Split (UnformattedLogLine, ":") gettingwonidupper = UBound (GettingWonID) If gettingwonidupper > 3 Then GettingWonIDFoundtoSplit = GettingWonID(5) GettingWonID2 = Split (GettingWonIDFoundtoSplit, ",") WonID = Trim(GettingWonID2(0)) ParsedArray(3) = WonID Else GettingWonID = Split (UnformattedLogLine, ",") WonID = Trim(GettingWonID(2)) ParsedArray(3) = WonID End If Case 8 GettingIP = Split (UnformattedLogLine, "IP:") GettingIPFoundToSplit = GettingIP (1) GettingIP2 = Split (GettingIPFoundToSplit, ":") IPAddress = Trim(GettingIP2(0)) ParsedArray(4) = IPAddress Case Else End Select GettingParsedValues = GettingParsedValues + 1 Loop IncrementLineCount() IncrementRow() GettingParsedValues = 0 InsertingParsedValues = 0 Col = 0 Insert_to_database() Loop -------------------- I really would like some insight from anyone :) I will be absolutely speachless to think my split code is causing this kind of performance degredation especially when its IDENTICAL to the previous version (under vb6). So im pretty sure its my Database code. This is my first ADO.net so be kind ;) Tag: Primary Key Tag: 55649
  - 16
    - error CLR: 8007000b When I run regsvcs I can see the following message: error CLR: 8007000b Why? I have installed Commerce server 2002 developers edition(with SP2) in windows 2000 server and with .net framework 1.1 Tag: Primary Key Tag: 55638
  - 17
    - XmlConvert bug? The following code throws a System.Format exception, it seems like XmlConvert cannot correctly handle TimeSpan objects. I guess I could use TimeSpan.Ticks but it makes for ugly XML. Is there a better way? Thanks, Pat. using System; using System.Xml; namespace ConsoleApplication1 { /// <summary> /// Summary description for Class1. /// </summary> class Class1 { /// <summary> /// The main entry point for the application. /// </summary> [STAThread] static void Main(string[] args) { TimeSpan foo = new TimeSpan(12345); string bar = XmlConvert.ToString (foo); TimeSpan back = XmlConvert.ToTimeSpan(bar); } } } Tag: Primary Key Tag: 55634
  - 18
    - Inheritance Problem when trying to implement Page Controller Hi All, Can somebody tell me what I am doing wrong. I have a Base Abstract Class Public MustInherit Class BaseRequestHandler : Inherits System.Web.UI.Page Protected Overridable Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load SomeMethod() End Sub Public MustOverride Sub SomeMethod() End Class I have a Web Page which Inherits this base class Public Class ManageCatalog : Inherits BaseRequestHandler Public Overrides Sub SomeMethod() 'Code Block end sub end class When I try to run it , I get the error Compiler Error Message: BC30610: Class 'ManageCatalog_aspx' must either be declared 'MustInherit' or override the following inherited 'MustOverride' member(s): Public Overridable MustOverride Sub SomeMethod(). Plss Help.. I am doing something really stupid.. Tag: Primary Key Tag: 55633
  - 19
    - Using PropertyBuilder with a Dynamic Type Using the example that microsoft gives in the VS documentation, creating a property with the PropertyBuilder on a dynamic type will never allow it (the property) to be exposed as public...only the get and set methods used on the property show up as public. Has anyone found a way around this? Thanks, Tom J Tag: Primary Key Tag: 55631
  - 20
    - BinaryWriter.Seek() vs BinaryWriter.BaseStream.Seek() Can anyone clarify the practical difference, if any, between BinaryWriter.Seek() and BinaryWriter.BaseStream.Seek()? Under what conditions might behavior of the two Seeks differ? Or, can anyone answer: Why does BinaryWriter have it's own Seek(), instead of using Seek() of contained Stream? I am porting a desktop data analysis program to C#, and often have both BinaryWriter / BinaryReader contain same FileStream. I guess I should just use BinaryWriter.BaseStream.Seek(), since it's there, but I'd like to know what is going on. I've read various docs and books, and did not see the answer. I know the methods don't override each other. Is the duplication just a convenience? Is one or the other "preferred", and why? And why is the offset argument int in one, long in the other?? Thanks, Daniel Goldman Tag: Primary Key Tag: 55622
  - 21
    - Authoring non-ui Windows Forms controls Anyone have an example that behaves similiarly to, say, an OpenFileDialog control? Creating a control with no painting code just paints badly on the form itself. But, an OpenFileDialog control (and many others) paint on a window BELOW the form in the designer. What's the trick to that? Anyone know? Tag: Primary Key Tag: 55620
  - 22
    - Going crazy over HTTP Post from class library I am trying to do an HTTP POST to a webpage from a DLL. The webpage is easily called, and a response is given. However, the web page is not receiving the POSTed variables. None of them. Request.Form returns no values. I have been over and over examples and have attempted to break my code down to nothing. As of right now, I'm using the example just how I found it, and still am having no luck. I'm using the .net framework v1.1. Please advise. EXAMPLE: string lcUrl = "http://localhost/HTMLPDFWeb/testform.aspx"; HttpWebRequest loHttp = (HttpWebRequest) WebRequest.Create(lcUrl); // *** Send any POST data string lcPostData = "Name=" + HttpUtility.UrlEncode("Name") + "&Company=" + HttpUtility.UrlEncode("Company"); loHttp.Method="POST"; byte [] lbPostBuffer = System.Text.Encoding.GetEncoding(1252).GetBytes(lcPostData); loHttp.ContentLength = lbPostBuffer.Length; Stream loPostData = loHttp.GetRequestStream(); loPostData.Write(lbPostBuffer,0,lbPostBuffer.Length); loPostData.Close(); HttpWebResponse loWebResponse = (HttpWebResponse) loHttp.GetResponse(); Encoding enc = System.Text.Encoding.GetEncoding(1252); StreamReader loResponseStream = new StreamReader(loWebResponse.GetResponseStream(),enc); string lcHtml = loResponseStream.ReadToEnd(); loWebResponse.Close(); loResponseStream.Close(); Tag: Primary Key Tag: 55617
  - 23
    - .NET web applications on UNIX This may seem like a wild one, but... I have a potential client that wants us to develop a web app on .NET and then port it over to UNIX. My initial reaction is that the app would have to be completely re-enginered for UNIX, but another developer I spoke to said that they didn't think that was necessarily the case. Is there a relationship between .NET and UNIX that I'm not aware of? Tag: Primary Key Tag: 55614
  - 24
    - Web Portal Hey all. I'm looking into creating a web portal that has a specific task. We have a multi-user environment and each user has some network space on a mapped drive. Through a login script, the user is automatically connected to their network drive when they log into a computer on the LAN. What I would like to do is have a web site that prompts a user for a username and password (if you have every used Outlook Web Access, it would basally be the same thing). Once the user is authenticated, they have access to their network drive. Nothing else, only THEIR network drive. The project was handed to me very open-ended. Basically, find a solution. I'm not a web programmer by trade - I have some experience, but nothing as advanced as what is being asked of me. So, the first thing I'm looking at is what are my options? I was thinking some sort of extranet setting, or some setup with .NET (if you are thinking VPN as I was originally, that is out -- this is to be a web interface, not VPN access). What are some other ideas out there? Does anyone have any experience with such a thing? Are there any websites out there that may be of assistance (preferably something that starts out simple and basic and works its way up). I would ideally be looking for something already out there vs. programming it. Thanks in advance for your responses!! Anthony Tag: Primary Key Tag: 55612
  - 25
    - Soliciting feedback on two features I am collecting data for two features that shipped with the CLR in v1.0 and v1.1. If you use and/or depend on these features, I would appreciate hearing from you with a brief description of how you use these features. 1) .NET Application Restore tool A few sources, including Jeffrey Richter's "Applied Microsoft .NET Framework Programming" book, describe a feature called the "app restore tool", which can be accessed via the .NET configuration tool. There is logging information recorded for each managed application that runs, which can be used by this tool to try to analyze any binding policy (e.g. binding redirect) changes that affected the application, and suggest ways to get your application back to an older state. 2) CacheLocation This is a relatively obscure feature that allows relocation of the GAC via a registry key setting. Support for this feature is limited, and there are a variety of known problems when this feature is actually used. Any comments you have would be apprecaited. Thanks. .\lan -- This posting is provided "AS IS" with no warranties, and confers no rights. http://blogs.gotdotnet.com/alanshi Tag: Primary Key Tag: 55611
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  - 1
    - Running C# program I have C# program, what is the minimum setup required on other PC (XP) to run C# (.NET) program. Do I need to put Windows update for .Net on every system that I want to run C# program? If not where can I find such package. Thanks lz Tag: Primary Key Tag: 55599
  - 2
    - TcpListener Problem I have created a TcpListener object and I execute the START and ACCEPTSOCKET method. When a remote connection is made I execute the Socket's RECEIVE method. The data I recived is what I expect. The problem: When I try to execute the SEND method the remote host never gets my message. Any Ideal what is wrong? My Code Dim LocalIP As IPEndPoint Dim Server As TcpListener Dim BytesRead As Int32 Dim txtMessage As String Dim Replay As String = "HTTP/1.1 200 OK <CRLF><CRLF>" Dim ReplayMsg() As Byte '-- Set up IP and Port number LocalIP = New IPEndPoint(IPAddress.Parse("127.0.0.1"), 1902) Server = New TcpListener(LocalIP) Server.Start() sClient = Server.AcceptSocket BytesRead = sClient.Receive(Buffer, 0, Buffer.Length, 0) txtMessage = CType(Encoding.ASCII.GetString(Buffer, 0, BytesRead), String) ReplayMsg = Encoding.ASCII.GetBytes(Replay) sClient.Send(ReplayMsg, ReplayMsg.Length, SocketFlags.None) Tag: Primary Key Tag: 55598
  - 3
    - c# applet Hi, Im trying to get a c# 'applet' to work. Like demonstrated here: http://samples.gotdotnet.com/quickstart/winforms/Samples/IeSourcing/VB/IESourcing.htm but I can't get it running on my local server (so security should not be a problem) I tried simple examples like: http://www.csharphelp.com/archives/archive109.html but all I get is an empty object box. I use Visual Studio 2003 and windows 2000 professional. I there anything else I need to know? Do I need to sign the assembly of something? Do I need windows server to run a proper IIS. Could a different internal-external IP be a problem? thnx in advance, Paul. Tag: Primary Key Tag: 55589
  - 4
    - Design Question I was looking for a clean way to have only get the Id of a reference object within an object The situation is when I want create an object for the purpose of adding it to the db. In that case I dont want to create objects of all the reference objects. IE. I want to create a new Address object to save. In the Db, I only need the Id of the state object in order to save it. Not the entire state object. I thought about adding a StateId in the Address object, but I dont want that. I was also thinking of adding a constructor to set the Id class BaseModel { int ID { get { return _id } set (_id = Value } } } class Address: BaseModel { string State { get { return _state } set (_state = Value } } string City { get { return _city } set (_city = Value } } } class State: BaseModel { string Name { get { return _name } set (_name = Value } } } Tag: Primary Key Tag: 55588
  - 5
    - Free tools for .net development Hi all, I'm searching for free and open source solutions to develop .net applications for free. I've found the SharpDevelop IDE (http://www.icsharpcode.net/OpenSource/SD/), the WebMatrix IDE (http://asp.net/webmatrix/default.aspx), to develop in ASP.net, SharpZipLib (http://www.icsharpcode.net/OpenSource/SD/), a library to work with .zip files, and the Magic Library (http://www.dotnetmagic.com/), an user interface library with advanced controls. But I didn't found a free DBMS and an UML tool, that works with .net code. Does anyone knows if there's, and where can I find these tools? Is MSDE free to any .net developer / project, or only for WebMatrix / Visual Studio projects? There's a visual tool (like the SQL Server Enterprise Manager) to work with MSDE databases? Any other tip about free tools are welcome. Thanks in advance, Fabrício de Novaes Kucinskis. Tag: Primary Key Tag: 55586
  - 6
    - Problem with .net not finding DLL file We are using a dll file EHLLAPI.dll, and .net (version 1.0) sporadically cannot find the DLL at runtime. The DLL is clearly present, and is in the same directory as the executable. This seems to happen randomly for some users. This is a windows forms application. Any ideas? An exception of the following type occurred: System.IO.FileNotFoundException User Comments: Stack Trace From Exception: 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.LoadFrom(String assemblyFile, Evidence securityEvidence) at EHLLAPI.HostStream..ctor(Int32 timeLimit) at ContactCenterDesktop.Launch.TotalLaunchOperation.execute(Contact contact, Application appl, Hashtable properties) at ContactCenterDesktop.Launch.Operation.executeOperation(Contact contact, Application app, Hashtable properties) at Workflows.Commands.LaunchAppCommand.doIt() Exception Information: Exception Message: File or assembly name EHLLAPI.DLL, or one of its dependencies, was not found. Exception Source: mscorlib Exception Method: [mscorlib]System.Reflection.Assembly::nLoad() Tag: Primary Key Tag: 55581
  - 7
    - Controls.Clear() fail I have a TabPage control in a Form that I want to add/remove TabPages to/from like: TabControl tabControl1; TabPage tabPage1; TabPage tabPage2; // Add tabs tabControl1.TabPages.Add(tabPage1); tabControl1.TabPages.Add(tabPage2); I now want to remove tabPage2: tabControl1.TabPages.Remove(tabPage2); Now clicking the 'X' on the caption bar fails to close the window. I DO NOT want to Dispose tabPage2, which may fix the bug. Do You have a solution? Is this a known bug? When will it be fixed? Thanks, Jens Tag: Primary Key Tag: 55576
  - 8
    - Datagrid help Hi all, How can I use the OnItemCommand in the codebehind section of the webform i.e in a function or a procedure , not in the html generated code. Many Thanks Sulafa Malik Tag: Primary Key Tag: 55568
  - 9
    - no touch deployment of crystal viewer I'm looking at the possibility of distributing a crystal report viewer control within an application on our intranet using "no-touch deployment". It'll be internally only, and the crystal.net license documents appear to suggest I can do this, as it's "free runtime" I'm running into problems though since the dlls aren't part of the standard .NET runtime install and even with FullTrust for the web launched forms app I'm still getting security exceptions loading the crystal dlls. I've come across the Assembly.LoadFrom methods, but I can't yet see just how to employ this to load the crystal dlls from a web folder at the right time. I've set the crystal dlls to copy local, yet still no joy. Has anyone had any experience of doing something like this or who could point me in the right direction vis-á-vis internal dll references in an http distributed app, or even conversion of code to enable such functionality. Tag: Primary Key Tag: 55567
  - 10
    - How to .... ??? Tag: Primary Key Tag: 55561
  - 11
    - Possible Framework Bug Output: ------- An unhandled exception of type 'System.Runtime.InteropServices.SEHException' occurred in system.windows.forms.dll Additional information: External component has thrown an exception. Threads: -------- > 3336 <No Name> System.Windows.Forms.Application.ComponentManager.System.W indows.Forms.UnsafeNativeMethods+IMsoComponentManager.FPus hMessageLoop Normal 1 Call Stack: ----------- system.windows.forms.dll! System.Windows.Forms.Application.ComponentManager.System.W indows.Forms.UnsafeNativeMethods+IMsoComponentManager.FPus hMessageLoop(int dwComponentID = 1, int reason = 4, int pvLoopData = 0) + 0x2fa bytes system.windows.forms.dll! ThreadContext.RunMessageLoopInner(int reason = 4, System.Windows.Forms.ApplicationContext context = {System.Windows.Forms.Application.ModalApplicationContext} ) + 0x1da bytes system.windows.forms.dll!ThreadContext.RunMessageLoop (int reason = 4, System.Windows.Forms.ApplicationContext context = {System.Windows.Forms.Application.ModalApplicationContext} ) + 0x4f bytes system.windows.forms.dll! System.Windows.Forms.Application.RunDialog (System.Windows.Forms.Form form = {TathamOddie.Components.Windows.Forms.Wizards.WizardForm}) + 0x36 bytes system.windows.forms.dll! System.Windows.Forms.Form.ShowDialog (System.Windows.Forms.IWin32Window owner = <undefined value>) + 0x55d bytes system.windows.forms.dll! System.Windows.Forms.Form.ShowDialog() + 0x12 bytes > SSW.ExchangeManager.HostUI.exe! SSW.ExchangeManager.HostUI.Core.Run() Line 75 + 0xb bytes C# SSW.ExchangeManager.HostUI.exe! SSW.ExchangeManager.HostUI.Startup.Main() Line 20 C# ex.ToString(): -------------- System.Runtime.InteropServices.SEHException: External component has thrown an exception. at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW (MSG& msg) at System.Windows.Forms.ComponentManager.System.Windows.Forms .UnsafeNativeMethods+IMsoComponentManager.FPushMessageLoop (Int32 dwComponentID, Int32 reason, Int32 pvLoopData) at System.Windows.Forms.ThreadContext.RunMessageLoopInner (Int32 reason, ApplicationContext context) at System.Windows.Forms.ThreadContext.RunMessageLoop (Int32 reason, ApplicationContext context) at System.Windows.Forms.Application.RunDialog(Form form) at System.Windows.Forms.Form.ShowDialog(IWin32Window owner) at System.Windows.Forms.Form.ShowDialog() at SSW.ExchangeManager.HostUI.Core.Run() in c:\data\visual studio projects\ssw\exchangemanager\hostui\core.cs:line 77 Disassembly: ------------ System.Windows.Forms.Application.ComponentManager.System.W indows.Forms.UnsafeNativeMethods+IMsoComponentManager.FPus hMessageLoop 000002d4 FF 50 04 call dword ptr [eax+4] 000002d7 0F B6 F0 movzx esi,al 000002da 85 F6 test esi,esi 000002dc 0F 85 42 01 00 00 jne 00000424 000002e2 8D 4D C0 lea ecx,[ebp- 40h] 000002e5 FF 15 30 2F EF 06 call dword ptr ds:[06EF2F30h] 000002eb 83 7D BC 00 cmp dword ptr [ebp-44h],0 000002ef 74 0F je 00000300 000002f1 8D 4D C0 lea ecx,[ebp- 40h] 000002f4 FF 15 3C 2F EF 06 call dword ptr ds:[06EF2F3Ch] > 000002fa 90 nop 000002fb E9 24 01 00 00 jmp 00000424 00000300 8D 4D C0 lea ecx,[ebp- 40h] 00000303 FF 15 38 2F EF 06 call dword ptr ds:[06EF2F38h] 00000309 90 nop 0000030a E9 15 01 00 00 jmp 00000424 0000030f 83 7D 0C 02 cmp dword ptr [ebp+0Ch],2 00000313 0F 84 15 01 00 00 je 0000042E 00000319 C7 45 A8 00 00 00 00 mov dword ptr [ebp-58h],0 00000320 8B 4D EC mov ecx,dword ptr [ebp-14h] 00000323 E8 5B C1 FC FF call FFFCC483 Tag: Primary Key Tag: 55554
  - 12
    - Connecting to Oracle DB in Sun Server (Solaris OS) Hi Guys, I'm currently interfacing .NET windows application to connect to Oracle DB in my test server running in windows 2000 server using .NET Oracle provider and it works fine. Since our production server is running under Sun Server with Solaris OS, Do I need to configure something (besides the server name) with my connection string when I connect to production server which is running in Sun Solaris? My .NET windows application is running in Windows 2000 platform. Thanks, Rod Tag: Primary Key Tag: 55552
  - 13
    - Loading UI Controls Our Windows.Forms user interface uses UserControls for the different parts of the application. The UserControls present a starting point for entity maintenance, data display, and data colleciton and displays related forms. We have constructed a launcher application that among other things creates a new Panel and Tab item when user's select options from a TreeView. The selected UserControl is loaded from a separate assembly and the object is created using CreateInstance then the UserControl is added to the Panel's control collection. The Tab item is used to select the loaded UserControl's that are basically stacked on top of each other, contained in their Panel's. All of the UserControl Panel's belong to one static Panel that is used as a work area. Everything works great except that this is all happening in one AppDomain and after these UserControls are destroyed none of the resources are being collected so naturally we eventually run out of memory. Using separate AppDomains for each UserControl seems like the way to go so that the AppDomains can be unloaded and resources freed. Although we were anticipating the next problem we continued down this path anyways. We can create the UserControls in separate AppDomains but Windows.Forms doesn't like it when we go to add the UserControl, in it's own AppDomain, to a Panel that is in the default AppDomain and we get the message: 'Remoting cannot find field parent on type System.Windows.Forms.Control.' Apparently, this property is not exposed through the TransparentProxy of the UserControl to the launcher application. Questions: 1. How can we load these UserControls in a separate AppDomain in order to free resources after they are destroyed? 2. Can we expose all of the members of the UserControl through the proxy so that Windows.Forms can utilize whatever members are need to site and manage the UserControl in the second AppDomain from a control container in the first AppDomain? 3. Is there another method that could be used to load UI controls from separate assemblies and still be able to free resources after they are destroyed? Thanks, Brian O'Neil Tag: Primary Key Tag: 55546
  - 14
    - BUG : Deployment Launch Conditions - Help I am having a real problem with the Launch conditions in VS .NET and can only come to the conclusion that it is a bug. It states quite emphatically in the MSDN that Launch Conditions WILL be executed in the order added. This statement holds true if every Condition has a InstallURL value set. but not if there is no InstallURL value. For Example : I want to check that W2K exists on the target machine before installing SP4. So, I add a Launch condition to check if versionNT=500. I leave the InstallURL Blank as you are supposed to if you do not want the user to continue and just display the OK button to terminate. This works fine by itself I add another Launch condition which check for SP4 viz. ServicePackLevel >=4 which has a InstallURL to enable me to install SP4 if it does not exist (ie sp1, 2, 3 is installed) As soon as I add it it jumps the queue and trie to install SP4 before even checking in W2k is installed. ??? Add a MDAC Check with option to install and it executes after the SP4 check (good) remove the SP4 Checks InstallUrl (ie quit if SP4 or greater not found) and MDAC jumps the queue. This is a problem as I do not want to put a installURL in for W2K Check as I don't want to install W2K (or the app) if the user is running W9x or NT or XP and I definately don't want to install the SP if W2k does not exist (granted that the SP install will moan, but too late!) Things I have tried : Launch condition addition in sequence of supposed execution ( no good) Alphabetical Naming sequence, any addition order (no good) Alphabetical Naming sequence with the correct addition order (no good) Physically Editing and Swopping (in notepad) the entries n the .vdproj file (no good) Adding the W2K check into the default Framework Check section (which happens before anything anyway) (no good) Not that it makes a difference but the application I am building a package for is written in C#... Any Help on the matter would be greatly appreciated. My Systems (tried it on all of them) : All have the following Software : (and one JUST have this software, nothing else so its nice and fresh) ~~~~~~~~~~~~~~~~~~~~~~ W2k SP4 VS.NET Architect edition .Net Framework 1.1 (version : 1.1.4322) Microsoft Development Environment (version : 7.1.3088) Microsoft Visual C# .NET 69586-335-0000007-18303 Microsoft Visual Basic .NET 69586-335-0000007-18303 Microsoft Visual J# .NET 69586-335-0000007-18303 Crystal Reports for Visual Studio .NET AAP50-GS00000-U7000RN IE6 sp1 (required by the VS.NET install) All the VS.NET stuff is the latest that came with the 2003 MSDN subscription. Different Hardware ~~~~~~~~~~~~~~ Compaq P4 2.1GHz 512Mb DDR Ram 40GB HD Dell Laptop P4 2.4GHz 512MB DDR Ram 40gb HD Celeron 2.3GH 512MB DDR Ram 80GB HD Tag: Primary Key Tag: 55542
  - 15
    - Version 1.1.4322.0 vs 1.1.4322.573 All, Is there any difference in the code of the version 1.1.4322.0 vs 1.1.4322.573 (the one available at MS Windows Update site)? All of our server got 1.1.4322.0 but one of them got the update from the website and has 1.1.4322.537. Any concern/ideas? Thanks Ari Ott. Tag: Primary Key Tag: 55535
  - 16
    - combobox inheritance All- I am attempting to create my own custom class which inherits from the ComboBox class. The problem is that I also need to use my own custom object collection for my custom class. I have already done this with a custom ListBox control by overriding the protected method "CreateItemCollection()" and returning a new instance of my custom collection class which inherits from ListBox.ObjectCollection and that works perfectly. I was surprised that no similar method exists for the ComboBox class. Am I overlooking something here? Why would they omit this? Thanks in advance, Will Tag: Primary Key Tag: 55526
  - 17
    - vb.net, recordset, recordlocking Hi, I have a vb6 application and access with Access2000 with dao. Important is the recordlocking because it should be a multiuserdatabase. I wanna translate this vb6 application to vb.net. How can I access with Access2000 that the recordlocking works properly. Can I use dao further (if yes, how does it work?)? Is there a good solution with ado.net (important multiuser and the recordlocking!) Thanx a lot for tipps and tricks Tag: Primary Key Tag: 55523
  - 18
    - How to get my IP address? This is a multi-part message in MIME format. ------=_NextPart_000_0008_01C36C94.EC604E80 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi all, Here's a (hopefully) simple question: How do I get a string containing = my IP address (e.g., "129.200.123.456")? TIA! ------=_NextPart_000_0008_01C36C94.EC604E80 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 6.00.2800.1226" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT face=3DArial size=3D2>Hi all,</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>Here's a (hopefully) simple = question:  How do=20 I get a string containing my IP address (e.g., "129.200.123.456")?  = TIA!</FONT></DIV></BODY></HTML> ------=_NextPart_000_0008_01C36C94.EC604E80-- Tag: Primary Key Tag: 55522
  - 19
    - Properties best practice? Hello, I am looking for opinions on property vs. (instance) variable use within a class. Say I have the following class: public class Dog { private string _name; private string _breed; public string Name { get { return _name; } set { _name = (value == null ? "spot" : value; ) } } public string Breed { get { return _breed; } set { _breed = value; } } public Dog(string name, string breed) { // how to set?? } } My question is, what is the best practice for using properties or variable INSIDE the class in which they're defined? For example, in the constructor above, should it look like: { _name = name; (or _name = (name == null ? "spot" : name; ) _breed = breed; } or { Name = name; // use property Breed = breed; // use property } Is there a general rule, or does it depend on the semantics of where it's being set (should _name automatically be set to "spot" in the constructor?), or??? Thank you all for your input. Jon Tag: Primary Key Tag: 55521
  - 20
    - C# application for Red-Eye Removal Hi, Does anyone know of a C#-based application that can remove red-eye within a digital photo? Thanks, Uki Tag: Primary Key Tag: 55517
  - 21
    - Cannot get MeasureString to return accurate value for making columns Hi all. I realize this MeasureString topic has been tossed around quite a bit but I can't seem to make it work well despite trying out all the postings. I implemented all I tried in the little function at the end of this posting. I've been trying to create some text separated into columns by spaces. (I can't use tabs to make these spaces between columns because this text ultimately goes on a device that doesn't support tabs.) Basically what i do is 1. get the cells contents and put it into the output text 2. keep adding spaces to the text until it reaches the column size 3. do the same for all the columns in the cells and for each row. Unfortunately even though MeasureString says the distance between the first and second column is nearly the same for all rows, it always looks like this: first_column second_column stuff1 455.445 otherstuff2 593.558 morestuff3 89.88 According to MeasureString the distance between the first and second column are minimal for each row but to the eye its quite large. Can anyone explain this is or point me in the right direction? Thank you! public static float GetStringWidth(string text,Font f) { StringFormat format= (StringFormat) StringFormat.GenericTypographic.Clone(); format.FormatFlags=StringFormatFlags.MeasureTrailingSpaces | StringFormatFlags.NoClip | StringFormatFlags.NoWrap | StringFormatFlags.DisplayFormatControl | StringFormatFlags.NoFontFallback; format.Trimming=StringTrimming.None; System.Windows.Forms.Control myControl = new System.Windows.Forms.Control(); Graphics TempGraphic = myControl.CreateGraphics(); TempGraphic.TextRenderingHint = TextRenderingHint.AntiAlias; float StringSize = TempGraphic.MeasureString (text,f,0xffff,format).Width; TempGraphic.Dispose(); TempGraphic = null; myControl.Dispose(); myControl = null; return StringSize; } Tag: Primary Key Tag: 55516
  - 22
    - Error with VS 2003 and framework 1.1 Hello I am having trouble creating a web project. I get http/1.1 500 Internal Server Error. The server is Win2K running dotnet framework 1.1 . Anyone have any ideas why? Thanks Mark Tag: Primary Key Tag: 55515
  - 23
    - config file with no touch deployment I'm playing with the no touch delpoyment, but I can't seem to load a config file. Is there an easy way to set up a publisher policy file to tell it the path of the config file? Where is the publicher policy deployed in that case? Can the config file be an embedded resource? In that case, has anyone gotten an embedded resource to work with Nant build tool? It seems with an auto deploy situation that you may not even need a config file. In my case it's not all that reasonable to manage a config file for hundreds of users anyway, unless it can be hosted on a shared server. AppSettingsReader should accept a file path. Thanks, Eric Cadwell Tag: Primary Key Tag: 55512
  - 24
    - compiling from code Hi! I need to compile a piece of code from my application, so i used the Microsoft.CSharp.Compiler class. However, at the Compiler.Compile() Method i get the following exception: 'System.Runtime.InteropServices.COMException' occurred in cscompmgd.dll Additional information: Cannot change thread mode after it is set. The code that produced this error is as follows: string[] src = new string[1]; src[0] = str; string[] nms = new string[1]; nms[0] = "clsRajzolo.cls"; string[] imps = new string[3]; imps[0] = "System.dll"; imps[1] = "System.Drawing.dll"; imps[2] = "System.Windows.Forms.dll"; Hashtable ht = new Hashtable(); ht.Add("target","library"); CompilerError[] ce = Compiler.Compile (src,nms,"C:\testrajz.dll",imps,ht); Tag: Primary Key Tag: 55502
  - 25
    - XML Dataset & Crystal Reports Mismatch I've got a Crystal report based on an XML dataset. I've changed the dataset & the report is convinced a string field is a number. Can I fix this? Tag: Primary Key Tag: 55500

Can a primary key be permantly set in a VFP table
contained within a DBC as I'm trying to connect a DBC
database to a .net 2003 application but due to a primary
key not being permantly set the application want allow
deletions or updates to the database. I am using the ODBC
VFP connection drivers to connect the database to .net.

I have added the primary key to the table in the DBC but
it want be active unless the order is set to it, but from
the SQL statement in .net it want allow any order to be
set.

Does anyone know if there are issues with updating &
deleting from a VFP Database using .net.

Thank you
James Gardiner

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