IS dude's Q&A profile

• .NET Development is it good practice to pass datagrid to a helper class

  If I want to populate a datagrid of a form. is it good practice to pass the datagrid as byVal or byref and populate the datagrid in the external helper class or should I populate the datagrid inside the form itself. By populating I mean setting all: DataGridtextboxcolumns, databindings, DataGridTableStyle, and so on and also the datasource and populating the data itself Thanks. Hi, You have to create a Component for the bussines logic (dll), which will have classes and methods for doing all the business logic of your application. Some of those methods will return TypedDataSets or Generics of objects ( depending of what you choose ). Those components implement IList, so you are able to do databinding with that. So, you cla ...Show All

• Windows Forms Masked DataGridViewCell

  Hi, I have a question : (Visual Studio 2005, Windows Form Application, DataGridView) Is there a way to set a mask for a DataGridViewCell for example : input mask (short date mask and date type validating) . the DataGridViewCell Value appear at run time : --/--/--- and the valid value should be for example dd/ MM/yyyy . if there is any way to do this I want it. previously thanks. DataGridView MaskedTextBox Column control provides restricted data input as well as formatted data output. This control supplies visual cues about the type of data being entered or displayed. It uses a mask to distinguish between appropriate and improper user input.When the DataGridView MaskedTextBox Column cell i ...Show All

• Visual Studio Express Editions Crystal Report Hassles.

  Hi All, I have the dataset, with one table in it. The table contains 4 rows, but when i bind my dataset to the crystal report, it shows only one page and one records. Any pointers on what should i do Now the problem is that, if there are 3 records, CRViewer displays the 3 pages, but when i scroll to the next page the page is blank without any record. Any pointers on that ...Show All

• .NET Development delete and update code at the same button cause concurrency violation !!!

  hi although the user for the application and the access database is one user i write the code for delete and save at the same time that gives exception says "concurrency violation the delete command affected 0 of expected rows" and i resolve this by merging a fresh copy of the table to it but also the concurrency violation occurs !!!! can any one help me this i want to stop all of concurrency violation happens at many positons of the application although the user for the access database is one user thanks in advance I have the same problem. I have hierarchial data that I am calling delete on the parent row, then calling update on both the parent and child DataAdapters. The child row will delete but whe ...Show All

• Visual Studio Tools for Office "RaceOnRCWCleanup was detected"

  I have an Outlook addin developed under VS2005 and VSTO2005. It acts as an interface between our CRM application and Outlook, transferring data between the SQL Server 2005 backend and Outlook. If the user quits Outlook while data is being transferred, under the debugger I get an MDA popup that indicates that ... " RaceOnRCWCleanup was detected Message: An attempt has been made to free an RCW that is in use. The RCW is in use on the active thread or another thread. Attempting to free an in-use RCW can cause corruption or data loss." I'm not sure if the RCW ("Runtime Calleable Wrapper") is one to Outlook, to SQL, or something altogether different. Is there a "safe" way to release the RCW ...Show All

• Software Development for Windows Vista Creating WF Rules From CodeDom

  Hi everone We have a situation where will be using Windows Workflow Foundation Rule Engine along with our custom application. Now the main point of foucs is to create rules on basis of some external application (say Microsoft Analysis Services Dataminig generates rules and they will be used ) , now as we gather WF uses CodeDom to save rules , now we need to write a convertor that takes rules from one side (SQL BI ) and convert it into WF (CodeDom ) Format . Now here i need you guys support for the following (SQL Datamining Generated Rules ---->WF CodeDom) a) Let me know the best possible option(s) for this b) can any one provide detail codeDom demos (I already browsed WF Team Member Blog , i think Mustufa's and some one ...Show All

• .NET Development SQLDataReader.GetOrdinal() fails rarely with IndexOutOfRange

  Hi everybody, We were developed some Web-Services that run against SQL Server 2000 with SQLDataReader that executing Stored Procedures in the DB. Most of time (95%) everything is running well, but sometimes (when exactly, we don't know) the same WebService that worked 200 times, fail. The code is simple:         public string myFunction( int ANumber )         {             string strRetVal = null ;             SqlDataReader myReader = null ;             SqlConnection MyConn = null ;             ...Show All

• Visual C++ Divide without using operators

  I need a code for Dividing two integers but ... without using any operators ie (+,-,*,/) to get the Quotient and Remainder One can use math.h . plz help me thanks..... You know, google won't bite you. http://www.bearcave.com/software/divide.htm ...Show All

• Software Development for Windows Vista Test Case 30 - Restart Manager - quite shutdown

  Hi, I'm running through test case 30 and noticed if I issue the shutdown command, my application prompts me to save the current file before it shuts down. At the time the shutdown command is issued, the app was not "running or performing any operations" (TC 30, note 1). If the app has no file open, or the the the currently opened file has already been saved, the app shuts down quietly. Any opinions as to whether or not the above behavior meets the requirement that the app responds "to shutdown messages using the Restart Manager API quietly without user interaction while idle" Thanks. Wes Hi Wes, This will not be meet the requirements for testing. The recommended action in your ...Show All

• Game Technologies: DirectX, XNA, XACT, etc. Deployment / strange Network Problem

  Hello I have a problem with deployment of a xbox 360 game. Okay the problem seems to be the network connection, i get the message that the host (my xbox 360) cannot be reached. I tried a PING to the IP Address of my XBox 360 and it fails. So i checked the Subnet, the IP Address, everything looks fine. And than i figured out something really strange: I started "PING -t 192.168.0.2" (the IP of my XBox) and i got timeouts as before. Than i started the network diagnostic tool on the XBox - still PING timouts. From the moment on where the network diagnostics reached the ICMP test, the PING succeeded and i receive an answer. Unfortunatly when the network test is over, the PING fails again. Can someone help me Greetings, Ber ...Show All

• SQL Server SMO's EnumAvailableSqlServers doesn't detect my local SQLEXPRESS instance

  I use the following to populate a combobox with a list of SQL Servers on the network: >> SmoApplication .EnumAvailableSqlServers( true );<< This lists all the servers on the network but my local SQL2005 Express is not listed. My firewall is turned off but this doesn't help. What else should I do Do you have SQL browser turned on If yes, did you hide the instance from the network I have a Screencast for that on my site if you are interested, you might find out if this option is enabled at your instance. HTH, Jens Suessmeyer. --- http://www.sqlserver2005.de --- ...Show All

• Software Development for Windows Vista Vista Certification Test Cases Test Case 18

  Hello: I would like to know if and why it is a requirement that we author a row in the upgrade table to satisfy test case 18. For "major upgrades" of our installer (as they would be categorized), we allow side-by-side installation. This way someone can have version 1.0, 2.0, 3.0, etc all installed at the same time. A major upgrade is defined as "A comprehensive update of the product warranting a change in the product code. Essentially, it is a new installation; optionally, it is an application removal." The keyword in that definition is "optionally". We do not want to remove version 1.0 if the user installs version 2.0, and we also don't want to prevent installation of version 1.0 if the user already has versi ...Show All

• Visual Studio Retrieving Project Information Using EnvDTE

  Retrieving Project Information Using EnvDTE Hi, I need some help in using EnvDTE. I want to retrieve complete information of the classes in my project (class, methods under each class, and other objects). I want to give the developers ability to modify the types or names of those objects and save the same. I do not know to what extent one can retrieve this info. I do not have sufficient knowledge on EnvDTE. Can anyone tell me whether the objective I am trying to achieve is possible If possible give me some tips to go ahead. Thanks, Sanjukta. See the "HOWTO: Navigate..." articles mentioned in this post of my blog: Common newbie questions asked in the fo ...Show All

• Visual C++ any documentation for coding a compiler

  I have a friend who is doing a school project: coding/implementing a comipler for C or C++ Where can he find some documentation pls Thanks. Here is the final draft of the C99 international standard. How complex is this compiler supposed to be ...Show All

• .NET Development Error when running my app from a net folder

  I need to use some of the apps i build in my company through the network. When i try to run them locally, from my local hard drive, they run fine and i have no problem, but, when i finish developing them, i have to put them in a network forder that everybody in the company can see.. this folder is in the company's server and the problem is that, when i try to run the app, i get an error message that says something like this: The application tryed to perform a not allowed action because of the security directives. For giving this app the needed permission, get in contact with the system administrator or use the Microsoft .NET Framework configuration tool. If you click on continue, the app will skip this error and try to go on. If you click ...Show All