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Re: Generic parameter/reflection problem AFSEKI11-Jul-07 23:58 AFSEKI 11-Jul-07 23:58  If I could help you then I'm glad to win a coder's heart OPC communication in C# k reddy10-Jul-07 1:38 k reddy 10-Jul-07 1:38  Hi all, I need help regarding how to communicate with OPCServer. i am developing application in C#. In project Reference i added OPCAutomation 2.0(COM) . I am adding the code which i done . OPCServer MyServer = null; OPCGroups MyOPCGroups = null; OPCGroup MYOPCGroup = null; MyServer = new OPCServer(); MyServer.Connect(ProgID,NODE); // till here ok MyOPCGroups =(OPCGroups) MyServer.OPCGroups; // but when i tried to create the OPCGroups i am getting casting error //saying that " OPCAutmation.OPCServerClass to type OPCAutomation.IOPCGroup" MYOPCGroup = (OPCGroup)MyOPCGroups.Add("MyGroup"); any help is appreciated Regards, Kotha. Re: OPC communication in C# AlessandroOPC6-Apr-09 4:59 AlessandroOPC 6-Apr-09 4:59  Hi! I have the same problem Were you able to solve it? Would be glad for any help... Regards, Alessandro Share DB on LAN mehrdadc4810-Jul-07 1:22 mehrdadc48 10-Jul-07 1:22  Hi. I want to develope an application that this application will be installed on computers of a LAN. Now I want the DataBase(Access , SQL Server) of these applications be one and on one of the computers(Server). i.e. I want the DB be shared between these applications. Best wishes Re: Share DB on LAN Christian Graus10-Jul-07 1:24 Christian Graus 10-Jul-07 1:24  So make the connection string of the app point to the one DB, on the LAN. Christian Graus - Microsoft MVP - C++ "I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum ) Re: Share DB on LAN mehrdadc4810-Jul-07 1:33 mehrdadc48 10-Jul-07 1:33  And if in same time 2 want to update one table what happens? Best wishes Re: Share DB on LAN Colin Angus Mackay10-Jul-07 1:44 Colin Angus Mackay 10-Jul-07 1:44  mehrdadc48 wrote: if in same time 2 want to update one table what happens? SQL Server is a highly scalable multi user database system. You get versions from Express upto Enterprise which can handle thousands of users simultaneously. The database engine deals with it - that's what its good at. Upcoming events: * Glasgow: Mock Objects, SQL Server CLR Integration, Reporting Services, db4o, Dependency Injection with Spring ... "I wouldn't say boo to a goose. I'm not a coward, I just realise that it would be largely pointless." Ready to Give up - Your help will be much appreciated. My website Re: Share DB on LAN originSH10-Jul-07 1:48 originSH 10-Jul-07 1:48  You have a few choices, you can have it as last one to update wins, you could put in a check to see if the record has been updated since the last read (sql server provides the TIMESTAMP column type for this). You could create some sort of checkout/checkin/lock system. It all depends on what the app is for and how it will be used. This issue is called concurrency if you want to do some searching on the subject. I personally tend towards optimistic concurrency, but that is what normally suits my apps. WIN APP ON LAN Banjo Ayorinde10-Jul-07 0:54 Banjo Ayorinde 10-Jul-07 0:54  How do I make a window application run on a network Re: WIN APP ON LAN Christian Graus10-Jul-07 1:19 Christian Graus 10-Jul-07 1:19  What do you mean by 'run on a network' ? It will access files on the network, just pass network paths to it. You can run it over a network, point to the exe over the network. How else do you mean ? Christian Graus - Microsoft MVP - C++ "I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum ) Remove Duplicates in Datatable kibromg10-Jul-07 0:52 kibromg 10-Jul-07 0:52  I have a various tables which gets activated as a user selects an option.I want to poulate the results in a datatable and check they are not duplicate data from each table.My datatable should contain a dataonly once no duplicates. How do i go about that? Is there a function that checks the data before writing it to datatable so that it cant duplicate? Please advice Thanks and regards Re: Remove Duplicates in Datatable Christian Graus10-Jul-07 1:20 Christian Graus 10-Jul-07 1:20  Not really, your database should have keys set so that it won't accept duplicates. The other way is to write a select to see if the data exists. Finally, you can insert with a stored proc that first checks if the data exists, and only inserts if it doesn't. Christian Graus - Microsoft MVP - C++ "I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum ) Re: Remove Duplicates in Datatable Chintan.Desai10-Jul-07 2:19 Chintan.Desai 10-Jul-07 2:19  Every table must have primary key and the Domain of each column must matches with one another to get the correct type of data in a column of the datatable.Load 1st row from i(Option selected) table to common datatable, check whether that rows is exists in common datatble,if it is then dont add the row else add them and proceed further with next row in i table. Regards Chintan www.visharadsoft.com (Nothing is so purify as KNOWLEDGE) Re: Remove Duplicates in Datatable kibromg10-Jul-07 4:53 kibromg 10-Jul-07 4:53  THANK YOU ALL YOUR HELP IS VERY GREAT. Re: Remove Duplicates in Datatable AFSEKI10-Jul-07 6:28 AFSEKI 10-Jul-07 6:28  Have a look at DataColumn.Unique property. NEED CRYSTAL REPORT EXPERT Banjo Ayorinde10-Jul-07 0:47 Banjo Ayorinde 10-Jul-07 0:47  Kindly link me anyone who have successfully deployed a windows based application with crystal report, using C#.Net 2005. B'cos am bug with deployment issue on crystal report. Re: NEED CRYSTAL REPORT EXPERT Paul Conrad12-Jul-07 17:38 Paul Conrad 12-Jul-07 17:38  Describe your bug with the deployment and someone might be able to help. "Any sort of work in VB6 is bound to provide several WTF moments." - Christian Graus listview with compact framework Sunshine Always10-Jul-07 0:27 Sunshine Always 10-Jul-07 0:27  hi the application is written in .net compact framework 1.0. i need to display a list of items with different forecolor for each item. the items get added to the list from a file. i have two problems: 1. the items get added but i get a horizontal scrollbar by default. i just want them too be added to the end like that in a listbox. 2. how do i set the forecolor of individual items? thanks. Re: listview with compact framework Sunshine Always10-Jul-07 0:44 Sunshine Always 10-Jul-07 0:44  i got the way to get view the items in a list with vertical scrollbar but the second problem still remains... does anyone have any suggestions??? thanks. Re: listview with compact framework Diana Fernandez10-Jul-07 1:14 Diana Fernandez 10-Jul-07 1:14  For each item in listview you have to set the color like this.listView1.Items[0].ForeColor = System.Drawing.Color.Red; this.listView1.Items[0].ForeColor = System.Drawing.Color.Blue; colourful context menu EvilInide10-Jul-07 0:22 EvilInide 10-Jul-07 0:22  hi How can i build colourful context menu for notification icon(System Tray Icon). Plz share any idea with u. I am getting sooo trouble on it thanks evilinside Re: colourful context menu Paul Conrad13-Jul-07 12:05 Paul Conrad 13-Jul-07 12:05  You are going to have to read up on custom controls. "Any sort of work in VB6 is bound to provide several WTF moments." - Christian Graus Chat Coading Sathiya Narayanan10-Jul-07 0:20 Sathiya Narayanan 10-Jul-07 0:20  Hai friends I am working for one private software company where in i a need to do the chatting program. I am new to .NET platform. please help me by sending either an sample program or by sending the coding. I need the thing in ASP .NET using C# coading. Sathiya Re: Chat Coading EvilInide10-Jul-07 0:27 EvilInide 10-Jul-07 0:27  go to google.com and search "multithreaded chat application in c# " you may get your answer. evilinside Re: Chat Coading Chintan.Desai10-Jul-07 2:24 Chintan.Desai 10-Jul-07 2:24  go to www.questpond.com if you wanna need whole project on chat application. Regards Chintan www.visharadsoft.com (Nothing is so purify as KNOWLEDGE)

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