Libol's Q&A profile

• .NET Development Is it possible to run an application in Windows XP SP1 which is developed in VB2005, .NET2.0, Windows XP SP2?

  As described in the subject, I developed an application using VB2005 with .NET framework 2.0 which is required to be upgraded when installing VB2005. Set it up on an older computer(There is no problem during setup) which is running in XP SP1, it gives error message as follows: "Selected collating sequence not supported by the operating system." followed by "There is no row at position 0." It seems to me the target database was not connected correctly so the data could not be read. Anybody has the same experience The problem is the older computer system could not be upgraded until after Christmas. The biggest issue is not with XP SP1 vs XP SP2. Neither came with .NET Framework 2.0 with it by ...Show All

• Visual C++ ActiveX in WIN32 and Console

  Greetings all, I'm in at an impass and hope someone on the forum can help point me in the correct direction. I am working with a control system that is writen in C/C++ and built on an OSI/Posix core. The main program body is a Console/Server application that expects few or no user events or inputs. We build with VC8 using Gmake ( from the cygwin suite ) and everything works well, the main application runs from console under Server2003 with no problems. We run in to an issue here, we have vendor supplied ActiveX controls that we would like to access from the control system. I dont know how, and neither do any of my vendors or other devlopers. Being a unix devloper for most of my life I assumed that we could instancate the control ...Show All

• Visual C++ Transparent cursor problem when creating OpenGL context

  I'm running VS 2005. The application I develop for uses a "shaping tool" cursor at some points, replacing the cursor with a transparent bitmap. It does this by creating a bitmap, testing the colors of the bitmap to set the alpha values, then using CreateIconIndirect to create an HCURSOR, as seen below. This normally works correctly. However, we've observed that when both third party and our own add-ons to the software create an OpenGL context for on-screen and off-screen rendering, the cursor does not display as expected. Instead of displaying the entire cursor bitmap, it won't display anything larger than 61 pixels, in the x or y dimensions. Once the OpenGL context is destroyed, it goes back to working as it should. Also p ...Show All

• Visual C# How to read from a text file?

  I want to read the words from a file and store the words in a 2D array. The first word in store in the first row of the array.the second word in second row..etc.. How can I do that you can try this: string[] theWords = System.IO.File.ReadAllLines( "FileName.txt "); this will read the entire contents of the file into a string[] array and you can access the array afterwards. Is this what you are after ...Show All

• SQL Server SQL Server 2005 Upgrade failure - Password Requirements

  I am trying to do an upgrade in place from SQL Server 2000 SP3a to SQL Server 2005. I am encountering the following error. SQL Server Setup has encountered the following problem:[Microsoft][SQL Native Client][SQL Server] Password validation failed. The password does not meet Windows policy requirements because it is too short...To continue, correct the problem and then SQL Server setup again. I read the other posting and it mentioned that the sa account needs to be changed. I have changed the sa account to meet the passowrd requirements for our system and have changed the following services I could find over to my domain account which I know meets the password restrictions. If I do a new install, everything seems to load correctly. What op ...Show All

• SQL Server MDX - Calculating Variance - One table

  I have a very simple table. Date Amount Variance Data as follows: 11/30/06 50.00 W 11/29/06 45.00 X 11/27/06 55.00 Y 11/25/06 30.00 Z I want to fill in W, X, Y, Z (and all other rows in the table) based on the Variance of the last 3 days - including the day on the row. For example, I would like to fill in field W with the Variance of the Amount field looking at 11/30, 11/29, 11/27. I would like to fill in field X with the Variance for data set (11/29, 11/27, 11/25) Etc ... I am converting an Excel spreadsheet to SQL 2005 (so i can handle a bunch of data). The reason I need to populate the field (and not just report it) is that I need that data for a bucnh of other calculations. So very simple in Excel ...Show All

• Game Technologies: DirectX, XNA, XACT, etc. Where to upload demos?

  Ok so I have an XNA demo game I want to upload but I don't want my web site to get slammed. Is there a good site to upload the demo to or something like a blog/dowload site that I can start I would like something XNA or MSFT based if possible. Thanks. talk about test before you comment, You were right Derek, I downloaded theproject from codeplex myself an it wouldn't run ;-( I have re-compiled it (thats all!!!) and now it seems to work and I am re-uploading the release to the coeplex site, should be done in a little while. I willmark the commnt on the release when it's done. Doh Darkside ...Show All

• Visual Studio Crystal Reports: How to make Parameter fields optional

  Hi, Im a newbie at both C# and CR10. Im converting a M/F report to CR10, which actually contained 3 different layouts and selection criteria. I've got the selection criteria working except it needs to be optional. How do I make the CR parm fields optional thxs, drc I am trying to solve a similar problem but my parameter field is a Date-range. Date-typed parameters get initialized whether or not they have a default value. Such is the case for Date ranged parameters. Date-range features a Maximum and Minimum value and are both initialized to the current date whether you want it or not! Is there a way to avoid or a workaround to default these values to either null or '' My record selection formula is t ...Show All

• .NET Development TableAdapter insert/update/delete order

  I have a typed-dataset with a dozen or so tables which are hooked together with typical on-to-many and many-to-many relationships. I'm using table adapters to do the CRUD actions. For updates I was using: //Update parent tableadapter_parent.Update(dataset.parenttable); //Update child tableadapter_child.Update(dataset.childtable); But I am getting foreign key reference errors when deleting records because the adapter is trying to delete a row from a parent table but it can't because there is a FK refrence to it in a child table.  But if I reverse the order of the table adapter update calls so child tables are updated before parent tables then the deletes work but the inserts fail because it can't insert a FK reference into ...Show All

• Visual C# free memory

  hi my operatin system is windows server 2003. I have program that use big text files , when i run that my computer Page File Usage is being the highest . If i close my application , Page File Usage won't decrese how can i free memory You could call GC.Collect(); to ask the Garbage collector to do a collection. But you can't really free any memory in C#. It's up to the runtime to do the work for you. But the runtime can only free objects who have no reference at them. You should also check if you are referencing objects, that aren't used anymore. For example you hold them in lists etc without using them. ...Show All

• Windows Forms host usercontrol on a modal child form?

  I just set the Mainform's 'IsMdiContainer' property to true but when adding the following code to a tab controls selectedIndex changed event, the form does not appear. Any ideas Can I do this (successfully) Can I simply change this formerly NonMDI app to on that supports modal forms thank you. -greg NewMDIChild.Controls.Add( Me .UserControl) NewMDIChild.Location = New System.Drawing.Point(100, 100) NewMDIChild.Size = New System.Drawing.Size(400, 200) NewMDIChild.Visible = True NewMDIChild.TopMost = True NewMDIChild.Show() Thank you Andrej. I am thinking I better move the buttons, its a kind of switchboard control, from a form to toolbar buttons...I do see that I am using the MDI c ...Show All

• Visual Basic clickOnce install Question

  Is it really true that clickOnce applications are installed on a unknown location on your hard drive We can only access it from it's short cut I would really like to know! Thank you. ...Show All

• Windows Forms best practices & tools adding help

  Hi We have a monsterous vb.net application We want to add a mixture of context sensitive help as well as 'how do I' type help assistance. I've perused MSDN and it seems the native tools supplied are pretty rudimentary to be polite. Any good suggestions / resources re: tools and techniques to add some good old fashioned F1 to our application thanks bruce Hi, Please go through the following topic in msdn. Hope this helps. http://support.microsoft.com/default.aspx scid=kb;en-us;821777 Thank you, Bhanu. ...Show All

• Visual Studio Express Editions Problems making a LabelArray

  Hello all, I'm having trouble making a LabelArray in VB 2005 Express Edition. First of all, I can't find an Index property when I look at the label properties. Secondly I can't use the same name on different labels. It for use in a loop: For i As Long = 1 To 4 Label(i).Text = TextBox1.Text Next i or something like that. I need a LabelArray, but how to make it in VB 2005 Express Don't modify Form.Designer.vb until you have a lot more experience. You may have seen advice to make variables global by adding them there in other posts but it is not necessary nor advisable. To make a variable global (Public) and visible to all classes in your application you can add it to a module, e.g. Public Module Module1 ...Show All

• SQL Server COLUMN GRAND TOTALS ARE INCORRECT FOR CALCULATED FIELDS IN VIRTUAL CUBE

  Hello, We have migrated some cubes from sqlserver 2000 to 2005 with success. The applicaticon contains one virtual cube made up from 6 other cubes. On the virtual cube level we specified calculated fields. The calculation contains elements from different cubes which shares dimensions. while browsing the cube from within sql server management studio or from excel using OLEDb 9.0 Provider we discovered that the column grand totals for these calculated fields are incorrect. The row grand totals are fine. Searching the internet (google) i have found a hotfix describing the problem SQL MSAS 2005 ( http://support.microsoft.com/kb/918251 ). We have installed this hotfix on top of SP1 but without results. Is somebody familiar with this ...Show All