DonRonBan's Q&A profile

• .NET Development Help getting started on serial comms

  Hello All I need help in starting to experiment with serial port comms. I have a device ( a gas analyser ) that I would like to read the output from via the serial port. I dont know what data it sends so my attempts to read text and byte data have not been succesfull. It has a row of LEDs showing ppm ( part per million) . What I would like to do is emulate those LEDs on the PC monitor. Where do I start Thanks     hi , the serial port class is in the System.Io.Ports namespace, you should check the documentation. the first thing you have to do is create your SerialPort object w ...Show All

• .NET Development Mapping physical address

  Anyone here have idea about how i'm going to obtain the physical id by using vb.net. But, the physical id should filter out the ip which belongs to "loopback" type tq ...Show All

• SQL Server Access vs. SQL Server

  Dear experts, I am currently using Microsoft Access and the current size of my database is about 250Mb. I need to incorporate an additional set of data which could potentially double the size of the database or more. I am considering whether to switch to a more professional database manager like SQL. I have the following questions: 1. How much data can Access realistically handle before performance starts to degrade materially 2. What is the next best option for database upgrade in Windows environment (SQL server, etc) 3. I am currently accessing my database via VBA (ActiveX Data Objects) within Excel application. If I switch to ...Show All

• Visual Studio Team System Additional binaries don't get shadow-copied

  i have three assemblies (class libraries) in my solution: the first one contains classes only (1), the second one contains the interfaces (2) and the third one works as a plugin (3) for 1 (implementing the interfaces from 2). at design-time 1 only references 2; i then have a post-build command that copies the binary from 3 to the bin-folder of 1 (2 gets copied anyway because of the reference). that works fine using my app normally. but when i run a unit-test for 1 the plugin 3 is not found. i checked the log and saw that the assemblies are shadow-copied to some temp folder in the users application data directory. that's a good ...Show All

• Visual Studio 2008 (Pre-release) Show a video at fullscreen

  hi i need to show a video file on fullscreen mode how i can do that i have tried with a maximized Window and with not border, but the video run slow i think the media playback in the latest bits is still not up to par with the rest of the runtime's performance. running video in full-screen mode *is* slow. hopefully the next CTP will help. ...Show All

• Windows Forms Creating an Editable Label

  Need to write a custom control to allow in-place editing, similar to that in a word processor, but user could edit ONLY those underlined (or similar specially marked) words in sentences -- not to allow editing the whole sentence or page. Appearance should look like a hyperlinked label, but not to function as a hyperlink. As the user enters longer text than the original, all the text on the right side of it should shift accrodingly as in a word processor. Expected functionalities are: - By double clicking the underlined (or specially marked) words, user is allowed to edit that particular text. Existing t ...Show All

• Visual Studio Express Editions Non-Microsoft OS

  Hello. I am currently know PHP and Python, and I build dynamic webpages in them. I am also a high-school student, so I don't develop pages proffessionaly, but more a like a hobby. I haven't really ever used ASP/Microsoft .NET stuff for building webpages, about all I know about ASP is <% %> :-). I am however interested in reading the eBooks that come with this, but my question is does the registration require installation of the program, or can I register anyway The only reason why I am not installing the program on my computer is because I primarily use GNU/Linux (x86) and Mac OS. I also have a copy of Windows ME installed on the GNU/L ...Show All

• SQL Server help on approach

  I have to read in an excel file of employees, read DB table to see if employee exists, if yes update a column, if no, write to a different excel file w/ the contents of the input record.  I'm trying to understand (new to SSIS) if there is a 'right' way to do this.  I'm thinking I could do all the work in the Control Flow or use a mix of Control and Data flows - any suggestions thanks You can build a relatively simple data flow to achieve this. It will have Excel Source to read rows from the source Excel file, Lookup to look for employees in the reference database. If an employee exists (regular; green output) use OLE ...Show All

• SQL Server SQM Server Express / SQL Server Mobile

  Hi, i need to make a synchronization between a sql server 2005 express and sql server 2005 mobile. I think this  is  not  possible using merge replication and RDA. Was this right If so could anyone help and present a possible workaround for my problem Thanks in advance, Nuno Silva. ...Show All

• Smart Device Development GPRS on Smartphones with C#

  Hi everybody I am trying to open a socket over GPRS on a smartphone with the System.Net.Sockets.TcpClient class. But this results in an error. I read something about a ConnectionManager in OpenNETCF but could not find out, whether in .NETCF2 this is still necessary, nor how to exactly use the class from my C# code in order to open a GPRS connection. Can somebody provide or point me to a valid code snippet about how to open a socket on a smartphone in C# Thank you very much in advance Hi, What was the stack trace when the error occurred The following code snippet is excerpted from the MSDN ...Show All

• Visual Studio Team System Creating a custom rule in FxCop

  Hi,   I'm trying to create a custom rule of the following variety. I'm given the following class x { public void y(string s ) {...}} class a { public string b( )} I have to go find in an assembly every method where this occurs x.y(a.b()); What would be the best strategy in creating such a rule Thanks, Sung Hon You can use that pattern if you want, since each rule is itself a StandardVisitor. Or you could simply inspect the Method.Body yourself. Note that this is an area that is very likely to change. ...Show All

• Windows Forms BAR CODE

  Hi everyone, To all developpers who worked with the Bar Code.Please help me by giving me a link or what ever you want. <hamdan_houssam@hotmail.com> Best Regards. ...Show All

• Visual C++ How can I manipulate strings in ATL

  Some problems happened during my simple development on IE. When I try to use MessageBox to display one string, manipulated by"strcat", there is no error or warning during compiling. But when IE tries to invoke the DLL, MessageBox involved, the IE reports that there are some errors in my DLL. After removed "strcat", every thing is ok. I wonder whether perhaps the string manipulation is different from the ordinary way How can I concatenate one constant string to the end of one string variable(char *) Experts, HELP... Bear in mind that we're offering freshman/sophomore-level education of how to use ...Show All

• SQL Server views

  how do i transfer views i created in sql server 2k to sql server 2005 express edition.. trying to use my database in sql server 2000 to sql 2005 express edition but when i imported it i couldnt find the views i created.. thanks you i installed an sql server 2005 express edition in my pc..we are currently using an sql 2000 in our server. am trying to use the feature import/export function of sql 2k to sql 2k5 express edition. was able to import the whole data from the 2k but when trying to check views under the database it was only the default views that were imported and i couldnt find the views we creat ...Show All

• SQL Server Overwrite flat file destination does not work

  I have 3 packages that run consecutively in a main package.  Each of these packages read data from a flat file and import it into the Database and then perform some updates and then I use a script component to write the data to a flat file destination and have overwrite flag on the flat file destination to false, however the flat file is not being appended to.  All the 3 packages are set to wirte to the same flat file destination each package overwrites the content of the flat file created by the previous packages.  I am wondering why the overwrite = False does not work on the flat file destination.  Is there some ...Show All