audioslave's Q&A profile

• Visual Studio Express Editions How can i connect to Siemens PLC's via VB

  Hello, Can anybody say to me how can i connect to Siemens PLC's S7-300, S7-400 via VB. I want to do my own HMI in VB and connect to Siemens PLC's. I dont want to use any server like Simatic Net, INAT, KEP ....etc. I need Activex DLL. Thank you Which interface - RS232 MPI (Multi Point Interface), Profibus DP/MPI or Profinet (Ethernet) This URL may have what you need: http://sourceforge.net/projects/libnodave ...Show All

• Smart Device Development The process can not access the file because it is being used by another process.

  I have some issues related to WebBrowser Control in .net cf. And in its URL Property I am assigning one .htm file. In that .htm file we are setting the backgroung using one image file "#BKGROUND#" , "\"" + FilePaths .stStrImagesFolderPath + @"\backgroundImage.jpg" + "\"" But sometimes, specially while doing fast navigation , Its throwing exception "The process can not access the file because it is being used by another process." Sometimes its coming for .htm file and sometimes it comes for backgroundImage.jpg file. How to avoid this. Kindly help. Subhasmita, I've got a couple more questions: Which platform (P ...Show All

• SQL Server tablediff utility bug?!?

  In my transactional push replication I had differences, which were reported correctly by the utility tbalediff. I created with the tablediff utility all necessary statements to correct them. Afterwards I ran tablediff again to check if everything is ok. It wasn't, I got a lot of mismatches. The reason for those mismatches are columns from type "float". It looks like that float values are not generated correctly in insert statements. We had differences in the values and from that point on we have mismatches. Does anyone has an idea how to get rid of those reported mismatches ! ! I will report this also as a bug. Regards Norbert tahnks Norbert, we tried to reproduce ...Show All

• Visual Studio 2008 (Pre-release) Application logon design/architecture - separate proxies sharing a single session?

  I've watched all of Mike Taulty's videos talking about WCF but I'm still a bit vague on how to go about implementing various things, such as the idea of clients needing to "logon" in order to access bits of the service. The clients I'm building will have multiple threads and these threads will need to be able to access the WCF Service independantly and they can't be waiting on one another (or on instances of classes that they're using server side). As such, my preference would be to use the [ServiceBehavior(InstanceContextMode=InstanceContextMode.PerCall)] attribute on the implementation class for the ServiceContract. Also, I don't want the user to have to login once for each thread that is running on the client - typically they' ...Show All

• Visual Studio 2008 (Pre-release) Load Testing Problem

  Hi, I am load testing our server's WCF service, which is running on a 2003 box. The service uses a WSHttpBinding binding. I have a simple console application that starts up a number of threads (currently 20), creates a proxy on each thread, and invokes the service every 30 seconds from that thread. In perfmon on the server, the ASP.NET 'Requests Current' counter remains at a steady 2, indicating only 2 requests from the client are being served at a time. Eventually it gets through them all, but if I up the number of threads to, say, 200 I get these errors: System.ServiceModel.Security.MessageSecurityException : An unsecured or incorrectly secured fault was received from the other party. See the inner FaultException for the fault c ...Show All

• Visual C# How to write code for Logout Page in ASP.NET 2.0

  i wrote following code but it is not working properly.i want ot erase url of page from Client Browser History . My Code is on click of Logout Button Session.Abandon() HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.NoCache) Response.Cache.SetAllowResponseInBrowserHistory( False ) Response.Redirect( "Logint.aspx" ) i got soln .same code but modify in page event ...Show All

• Windows Forms Prevent DataGridView selecting a row - is it possible?

  Hi all, I have a sorted, non-editable DataGridView which contains some cells in each row that are traffic-lighted (ie: they have a different b/g colour depending on value) but when I populate the control the row that was the first one (before sorting) is always highlighted thus wiping out my custom coloured cells. I have tried every combo of colours and highlighting options to try and stop the DGV doing this but can't find a way. Ideally I just want to suppress altogether the DGV control selecting a row when it populates - does anyone know how I can go about this This is driving me mad so I hope someone can help! TIA... Mike have you tried handling the event: public event DataGridViewRowPrePaintEvent ...Show All

• Visual Basic migrating old api vb6 features to .net

  Dear folks, I’ve inherited an old vb6 project which uses API nt services along with functions such as the following: Private Declare Function OpenSCManager _ Lib "advapi32" Alias "OpenSCManagerA" _ Private Declare Function CreateService _ Lib "advapi32" Alias "CreateServiceA" _ Private Declare Function DeleteService _ Private Declare Function CloseServiceHandle _ Private Declare Function OpenService _ Private Declare Function QueryServiceConfig I haven’t idea how to develop this logic through Visual Studio 2005. So that I’m looking for the same stuff but totally focused to Net 2.0. How do I Thanks in advance for any co ...Show All

• SQL Server Why is TOP executed last?

  Hi. I have a complex SELECT query with a few joins and some millions of rows to deal with. However, I only need one (and any) result, so I added a TOP 1 clause. When I look at the query plan with Query Analyser, I see the TOP action last. The impression I get is that the query is analysing the whole of the results before poping me the first. Is this right What I'd expect it to do is to stop as soon as it has a single result. Is it possible to enforce this type of behavior Thanks in advance Carlos Hi, yes in this particular case this makes sense, but what about if you use an order within your query. Wouldn’t you want SQL Server to process the query as a whole, order it afterwards ...Show All

• Visual Studio Team System [HELP!!!] Testing ASP.NET application UI using VSTS

  Hello all, I have been using Visual Studio Team System to evaluate whether form fields exist or not on my pages. Things were going fine until I added a master page to all the pages which had forms. Now, my tests for whether the form fields exist or not fail because the form fields are contained within the content area (the <asp:content> tag) of the master page. The test fails because the id of the form fields change dynamically when the page is rendered. For example, if I have a text box named "name" in one of my forms and I place it within the content area, the id changes to something like "xxx_contentplaceholder1_name" (not sure of the exact ID). How do I test for my form fields when they are placed wi ...Show All

• Windows Forms single instance form

  Is there a setting that allow me to have some forms have only single instane in one application. if not how do i go about/ Thanks        It works fine in case when child window in MDI is not minimized, when i minimize the child window and then click on MDI menu, it is not restoring, only highlighting, I want it restore to its original size. Thanks   ...Show All

• Windows Live Developer Forums VE Winforms Asset Management System

  Some time ago, I wrote an asset management system in VB.NET, using Virtual Earth with a MapCruncher Mashup of my company's multi-floor floor plan. I use this for my helpdesk work. When someone calls in, I can pull up a map of that computer's exact location. However, it's becoming more difficult to maintain with the many updates to the VE API as well as mapcruncher. However, the speed is more of an issue. I have so much data in this system, and the fact that it has to fetch the VE data from the Web, it is so slow. I put the data in the system by visually locating a PC in the general location on the map. I click the Map to pull the Lat and Long of that location; which I then store in a SQL server. So when I search for a pc name, it locate ...Show All

• Visual Basic Problem when the non-default printer is selected

  My app prints to the default printer, unless the user changes this via the PrintDialog. The default printer (B/W laser) works perfectly. However, now that my colour cartridges have finally arrived, I thought I'd better test it on the colour printer. As far as I can see, only the printer name is being changed and as the correct printer is being used, this presumably is okay. It print previews perfectly. But when I print what should a a few lines of text, I get gobbledegook over several pages. The printer is an Epson 640 and working with other apps. Anyone got any ideas before I visit the garage for a large lump hammer! Rich Bruno, This is essentailly what I am doing except that m ...Show All

• Windows Forms ETA countdown on datagrid

  I was wondering how can i do a ETA on a column of a datagrid It does a countdown .. 10, 9, 8, 7, 6 ..... etc .. on each row of the datagrid there's a eta for the row. Do i need another thread to do the countdown and update the datagrid I don't have a clear idea to do it ... i don't want to use the main thread to update the datagrid .. To your thread problem, if you really want to use another thread to update the gui, here is a demo on this: http://www.codeproject.com/csharp/csharp_guithreads.asp df=100&forumid=15862&exp=0&select=532217 http://forums.microsoft.com/MSDN/ShowPost.aspx PostID=399902&SiteID=1 ...Show All

• Windows Forms Datagridview - display row vertical

  Hi all. Is there an easy way to display one record in a datatable verticaly Like this. (one record with many fields....) Field Value ID 12 Name Mike Smith Address Ally road 12 Zip 01111 Sex Male and so on..... today i use the: datagridview1.datasource = dtCustomer. works fine, but i want the record verticaly instead of horisontally. Lars Take a look at this example. ...Show All