Jordan Y's Q&A profile

• Visual Studio Express Editions Matrix implementation problem

  Hi everyone, I am implementing a matrix program which create matrix according to the values on a file and write to or read from files the values of the matrix. However, since I am not able to compile my program, I would like to ask you that whether my class si logically correct and whether it gives a compile time error or not. If there is unexpeted situations in my code, would you please help e to fix them class SymmetricMatrix { public: int index1; int index2; int **matrices; /* * Constructor that initializes an empty matrix with a given size. */ SymmetricMatrix(const int matrixSize){ size = matrixSize; matrices = new int*[size]; for(int a = 0; a < size; a++) matrices = new int[size]; // assigni ...Show All

• .NET Development Could not find installable ISAM.

  I got the "Could Not find installable ISAM error" while uploading an Excel file in my application. The connection string uses the Microsoft.Jet.OLEDB.4.0 provider with following parameters Provider=Microsoft.Jet.OLEDB.4.0;Excel 8.0; Extended Properties=HDR=No; IMEX=1. I checked the registry entries as mentioned in the "Retrieving Data from Excell 2003-Could Not Find installable ISAM" post and even registered the "Msexcl40.dll" again. Even then I got the "Could Not find installable ISAM error". So I restarted the IIS Server. Even then the problem persists. What else could be the problem Thanks and Regards, Little The ExcelFileName in the connection stri ...Show All

• Game Technologies: DirectX, XNA, XACT, etc. Easiest way to create a laser effect for a board game conversion?

  Just as the subject says, I have a couple of projects in the works where I need a laser effect for board units. One thing that I'll need to do is have it reflect off of objects. If anyone have any suggestions/ideas I'd greatly appreciate it. Assuming you already know where you want to draw your lines and are just looking for suggestions as to how to draw them - you could draw the line segments using rotated and scaled sprites. Use a texture that is 1 pixel high and a small number wide (say 16 or 32, depends on how wide you want your beam), the texture should contain a profile of your beam (perhaps a gradiant in the alpha channel). Then use a bit of trigonometry to convert the line start and end points into angle and distance and ...Show All

• .NET Development ASP.Net and VWD

  Can anyone explain the difference between ASP.Net and Visual Web Developer thanks tattoo Thanks for the reply... Is it possible to add features using Visual WebDeveloper to a website that was developed using FrontPage thanks ...Show All

• Windows Live Developer Forums Typing text in an input over the map

  I've tried to put a basic text box in a div that I popup over the map. However, when I try to type into the text box, no text is entered. Instead, if I hit certain keys (like a, r, or b) it changes the map view. How do I turn off the hotkeys while in the text box and instead get my text into the textbox well, then something is definitely wrong with your code, i have multiple pages with inputboxes, and they dont trigger a mapstyle-change if i enter the magic letters. Show the code, or even better, give the url to the mashup, so we can check it out. ...Show All

• SQL Server How can I install SSIS on client side?

  Hi, We just moved from SQL 2000 to SQL 2005 Ent. To use SSIS service, I need install this package on client side. But when I install the 2005 on my PC(Win XP Prof), I did not find any place I can include it. Anyone has similar experience or know how to do it Thanks in advance, Jie Hi Jwei, Take That CD 1 and choose Workstation components, Books Online and development tools. That'll install the following components: .BOL .Native client .BIDS .SQLXML4 .MSXML6 .OWCL11 (Office Windows Components) .SQL Server Backward-Compatibility Files HTH ...Show All

• .NET Development Is there any way to determine if Dispose() was called in the context of an exception?

  It would be useful to me if I could determine whether my Dispose() method was called in the context of an exception. Is there any way to find that out Thanks...Rick You could tap into the ICorDebug interface to get informed of any exception (which I don't recommend); but, I don't think it will necessarily tell you when you're in or out of an exception block. Keep in mind, the "activeness" of an exception could span many different blocks of code (usually spanning methods too). ...Show All

• Visual C++ USB class

  I have been using the serialPort class for the last few weeks and I have successfully managed to implement a few small applications using the different methods within the class: read, readByte, etc. The applications operate with an RS232 connection to a separate p.c. running Hyperterminal. I would now like to begin implementing applications using a USB connection. Is there a USB class, or can I use the serialPort class Any help or advice would be appreciated. USB and serial port are totally differ. Write your own class using Windows API provided. Sometimes this article may help you to start ...Show All

• Smart Device Development Help with GAC problem

  I am porting an application from VB6 to VB .NET CE and have run into a roadblock. Here is the code I am trying to run.... If Not ValidateManYear() Then Exit Function ElseIf Not ValidateVehicleYear() Then Exit Function ElseIf Not ValidateMake(pbFullCheck) Then Exit Function As soon as the 5th line is reached I get this error... File or assembly name "System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089', or one of its dependencies, was not found. This assembly is installed in the Windows/assembly folder on my machine. The funny thing is, I can remove the arguement and the parameter from the ValidateMake method and I still get the error. ...Show All

• Visual C# Class Library Application Settings Don't Appear in app.exe.config

  I have a desire to define application settings within Class Library projects as well as the main application project. I was hoping the Class Library application settings would be accessible in the app.exe.config file. Is this possible I created a winform application with a class library project. I added application settings using the settings designer in both projects. After compiling the application, I was able to access the application project's application settings in the app.exe.config. Where/how can I access the class library's application settings I was able to work around this issue by manually transferring the section element and ClassLibraryNamespace.Properties.Settings elements from the class library app.config to the main ...Show All

• SQL Server How to automatic update view when table's structure has changed

  For example: Create view View_AutoUpdate as ( select a.*,b.[name] from User as a,Company as b where a.CompanyID=b.CompanyID ) Done,but when i do it follow: Alter table User add UserAddress nvarchar(50) null Done. finally,i type "select * from View_AutoUpdate ",the list column is not right. thanks Please don't use * as SELECT list in views or inline TVFs or even SPs for that matter. It will create lot of problems to applications. For example, the column order can be significantly different when you alter the table (depends on how you do it) and this can break client applications. You can also encounter problems where the data type of the columns have changed if ...Show All

• SQL Server INSERT INTO table From EXEC -

  Hello, How can I insert values from a query directly to a table in my database the query gets values from a linked server and i want to directly insert the results in my local database. This is how i thought would be done: CREATE PROCEDURE dbo.SP_INSERTfromEXEC AS BEGIN INSERT INTO dbo.mytable EXEC dbo.QuerytoLinkedServer END When i execute dboSP_INSERTfromEXEC procedure, then i get this error: The operation could not be performed because OLE DB provider "SQLNCLI" for linked server "blahblah" was unable to begin a distributed transaction. Now, when I execute dbo.QuerytoLinkedServer procedure, i do get the values, there is no error. It just doesn't want to insert it I suppose. Any help would be greatly appreciated! ...Show All

• Visual C++ welcome, Mr. Brian

  i have the same problem when migrating the code from vC++4.0 to vs2005, 1>Linking... 1>SelectPartDlg.obj : error LNK2001: unresolved external symbol SHSipPreference 1>FileOpenDlg.obj : error LNK2019: unresolved external symbol SHSipPreference referenced in function "protected: void __cdecl CFileOpenDlg::SoftwareKeyboard(enum tagSIPSTATE)" ( SoftwareKeyboard@CFileOpenDlg@@IAAXW4tagSIPSTATE@@@Z ) 1>InputSerNumber.obj : error LNK2001: unresolved external symbol SHSipPreference 1>RecordInfo.obj : error LNK2001: unresolved external symbol SHSipPreference 1>RTAView.obj : error LNK2001: unresolved external symbol SHSipPreference 1>RTA.obj : error LNK2019: unresolved external symbol SHInitExtraControls refer ...Show All

• Visual C++ Unable to use Edit and Continue feature

  hi, Iam working with VS2005 Pro and want to use the Edit and continue feature but iam not able to do so. I followed the steps in the msdn but failed, any help would be great. thanks & regards, srikanth. You're right. Only assemblies that are mixed native and managed don't support E&C. Check the bottom of this web page for unsupported E&C scenarios. There are a number of compiler and linker options that disable E&C too, check the docs under the index entry "Edit and Continue". Check this thread for your 2nd question... ...Show All

• Visual Basic Complex Operations with DateTime

  Hi, I have a datetime var to which I would like to substract "x" minutes but I don't get the correct datetime result, for example: 23/11/2006 02:25:10 p.m. and I need to substract 10,434 minutes so I can get the starting date: Dim xDate as datetime = Cdate("23/11/2006 02:25:10 p.m.") Dim xNewDate as datetime = xDate.addminutes(-10434) xNewDate= 16/11/2006 08:31:10 a.m. If 10,434 minutes = 7 days, 4 hours and 24 minutes then the correct date should be: 16/11/2006 10:01:10 a.m. What am I doing wrong Thanks in advance. George the result I am getting is actually 15/11/2006 20:31:10 Dim theDateTime as new DateTime(2006, 11, 23, 02, 25, 10) theDateTi ...Show All