Transaction.Commit() , Transaction.Rollback() , cmd.BeginTransaction(), cmd.EndTransaction() Can any one explain what are the kind of scenarios that these set of commands are being used. MSDN does have the code but does not explain how are they different from simple ExecuteReader() or execu...more >>

How can I access a field contained in fieldInfo by reference so I can pass it to a function ? ive tried __refvalue but this needs a type known at compile time, I can access it with SetValue and GetValue but in one case where the field is a structure I need to pass it as a ref to a function. ...more >>

Hi All, my company have plan to re-develop the orginal system and my team have 3 people so we will develop each function seperately with its own winform but i would like to know how to integrate the function at the last step with main program that contain a menu here i have few suggest...more >>

Hi, I have this code wich fills in data fields from a file, recursivley down through any structures/classes the difficulty is when I come acros a field wich is a structure, wich can not be read as a binary blit. I need to be able to pass this as a reference to a function to carry on the recu...more >>

In the course of developing my application, it inserts many test rows into the test database. These are standard Orders with details and other data. Now, I wish to delete these "dummy" orders, but because of the relationships between the order, details, and other tables, it's a tedious manual ...more >>

What ports do i need to unblock on client and server (running msvsmon.exe) to debug remotely from my client box with visual studio 2005 pro? When I attach to remote process a connection shows up in msvsmon.exe on the remote machine, however, the client box with visual studio displays error: ...more >>

I've created a class library of controls/components. For the component i implemented a custom designer that tracks the custom controls added to a form. If i wanted to serialize the component out to a resource in the forms assy, how do I get the reference to the Forms assy? Since it's a compon...more >>

Hello: I wrote an .exe that I would like to be called by a service I am deploying to a server. However, I am not sure how to tell the setup project to include the .exe. Also, I do not know how to tell the service where the .exe actually resides on the server. I would like to prevent hard-co...more >>

First, my thanks in advance to those who can help explain away this mystery line of code. Petzold is a great teacher and I appreciate his work; however, his explanation about an extra line of code needed when a class is contained in a library vs the class being defined in a separate file with...more >>

I'm still trying to figure out how to do this simple task with WPF. I need to draw a black circle using WPF and generate an image file. (gif or png) Any help is greatly appreciated. Tem I used the following but it resulted in a blank file. I cannot figure out what is wrong with ...more >>

This is mainly aimed at the regulars... but out of interest, are many of you off to TechEd next week? Presenting perhaps? It will obviously be a busy week, but it could be interesting to put some faces to names... ;-p Marc ...more >>

I have following code in C#.NET m_strTableName = "AFE"; m_dataTable = new DataTable(m_strTableName); DataColumn dc; dc = m_dataTable.Columns.Add(COL_DEPTH, typeof(Double)); dc.DefaultValue = 0.00; dc.Caption = COL_DEPTH + " (ft)"; I want to display datavalue for this colum up to two de...more >>

Hi, I'm still having some troubles. I decided maybe i can copy or assign a datatable to another datatable or grid and remove the uncessary columns, but I get an error... example: I created a dataset and set my datasource of the grid to it. I am getting the following error now: Error ...more >>

How to debug sql 2005 on remote machine. I am administrator on both my dev machine and remote sql server machine. I get this error when i try to connect to remote machien with visual studio: unable to connect to microsoft vistual studio remote debugging monitor named msdb3. the microsfot v...more >>

Is List.ConvertAll the only way to apply TrimStart to elements of a List<string> or is there a better way ? Currently I'm doing this... List<string> lst = new List<string>(); lst.AddRange(new string[] {"A test", " that you", " need to see!" }); lst = lst.ConvertAll<string>(delegate(string li...more >>

Hi I'm porting an old Access/VB application to .Net, and I've encountered a small problem. The VB application takes a value from a query and stores it in a Double. This value is the result of a calculation involving three values all stored in Access as Single. This is how the values bubb...more >>

Hi all, I cant seem to debug my windows service on my Vista machine. It seems it has something to do with 0 Session. What I would normally do is add the following code to my OnStart() but it does not work on Vista #if DEBUG System.Diagnostics.Debugger.Break(); ...more >>

I am getting the following error when trying to call GetRequestStream(): System.Net.WebException: The requested URI is invalid for this FTP command.. Code where the exception catches: ... FtpWebRequest uploadRequest = (FtpWebRequest)WebRequest.Create(upload...more >>

I'm in a vigorous debate at my work regarding objects assuming knowledge of the type their containing object. This debate pertains specifically to ASP.NET, but I have decided to post in the C# forum because this is where most of the OO gurus hang out, and I view this as a fundamental issue ...more >>

In my datagrid (datasource is DataTable) all my double values are intended towards left . how do i set it to right allignment. which property shall i set and how do i display double value up to certain cedimal places. ...more >>

In .NET I have been using the TransactionScope class to wrap my unit tests into a transaction and roll back any database changes after I have completed my unit test. Now I am dealing with some JAVA developers and looking for a similar way for them to be able to do this from their JAVA code an...more >>

Hi, I asked here yesterday about bringing a form to front with hotkey while using different application then mine (meaning, when i'm using outlook, and pressing ALT+T it will bring a form from my application to front), my problem was that after i press the hotkey, the window stays in minimi...more >>

Hi All, I want to modify the specified attributes in an XML file. I know the attributes' names, I just need to change the values of these attributes. I did some research and I think I need to use an XMLDocument object to load the XML file, and use XPathNavigator to retrieve the nodes. But ...more >>

Has anyone worked on Windows Desktop Search (WDS) APIs for Windows Vista? Need some help in resolving Vista Administrator issue for using WDS....more >>

Hello I've added a listview to my WinForms C# 2.0 application. The listview is displayed in Details view and has the FullRowSelect property set to true. I'm using the listview control like a multi column list box (with column headers), and I've set the MultiSelect property to false. It all ...more >>

I am using the VS 2005 Class Designer to create a business model for an application. It is a great tool, but I don't think it does a very good job creating skeleton code for properties. Here is an example of what it generates: public string Foo { get ...more >>

I have an application that loads several files from a database (as byte[]) then writes them to the "docs and settings\all users\application data\my company\my app" folder. The problem I'm running into is that if I'm logged into windows (domain admin) and perform actions that result in files...more >>

I have an Excel workbook that launch an external .exe. My .exe is written in c#. My application need a reference to the excel applicationthat just call it. When calling the external .exe (my c# application) from Excel, i'm passing the Excel PID in arguments. In c# i'm able to get the Excel proce...more >>

Hi, I am trying to develop a WebService that needs to execute some application commands on a server. I am using System.Diagnostics.Process. The reason for trying to impersonate a user is that the commands that needs to be run cannot be run at NETWORK SERVICE but as a valid application user: ...more >>

Dear All my company is going to re-develop the system with C# and this team have 3 people and each person are going to develop each function with its own winform and finally there are a main winform that contain a menu button to access those functons my question is how can i integrate...more >>

I have found an excellent resource on understanding Windows Application concepts and exam 070-306. http://technical-talk.com/mc/mcsd/mcsd306.asp ...more >>

I am exporting certain records to Excel 2007. There are about 15-16 columns and I want to take the print-out of this Excel document (containing exported records) in Landscape mode. I am using A4 page. I want to arrange the Excel document in a way that on first page 15 rows are displayed and the ...more >>

I am exporting certain records to Excel 2007 using C# code. I want to adjust the cell width accordingly so that when the record gets transferred to a cell, it is clearly visible. I want to increase the height and width of the Excel cell at run-time. ...more >>

Hi, I have made an application in C#, where I use the statement Environment.GetFolderPath(Environment.SpecialFolder.ProgramFiles) to get the name of the "Program Files" folder. It works fine in "Windows 2000" and "Windows XP", but it fails when I'm using "Windows Vista Ultima" in Danish. It r...more >>

i have a proc (sql server) i want to send back 3 selects from 1 proc....any examples of how to do this Tks Analizer1 ...more >>

http://www.itechart.com/ DotNetNuke development services for DNN include: =B7 Product Design and Analysis =B7 Prototyping =B7 Incremental Development Approach =B7 Full Product Testing Cycle =B7 Customization Services =B7 Localization Services =B7 Integration Services =B7 Product Support =B...more >>

Okay, when you subscribe to an event, and that event fires, it is passed (sender, eventargs), yea? So what is sender? Can you do anything with it other than toString()? If it's a reference to the object that fired the event, how can I access that object's properties? I'm new, and am try...more >>

All- I have a WinForms app written in C# that's doing some COM interop with Apple iTunes (they have a published COM API). I'm getting a reference to the COM server and registering some event handlers that respond to user activities in iTunes. When I run my compiled exe everything works fine...more >>

Hi, Is there any setting that I can use to allow the same file to be open in a filestream in append mode with one process and read in another. I can see why concurrent appends or write modes wouldn't work but it seems like maybe a read could coexist with append? Thanks, Bob ...more >>

Hi All, I need to build a console app that can connect to a mailbox on a Microsoft Exchange 2000 Server located on our intranet to do the following: - go through all emails in the inbox - test these emails for whether or not they have attachments that meet a specific filename pattern - sa...more >>

Hi all, i've written a generic class (using VS 2005 and .NET 2.0) with a T type parameter and a constraint (naming an interface): public class MyGenericClass<T> where T : IMyBaseType { ... } Inside this class I'm going to call an external function that expects a parameter with t...more >>

Hello, I have a class, when I use this class like this, using (StockManager StMan = new StockManager()) { .......... } it returns "error type used in a using statement must be implicitly convertible to 'System.IDisposable' " How can I implement Dispose parts ? My Class is; class...more >>

Hello, I have a web application and windows application, My web application has App_Code folder and in this folder have a Users.cs file, this file has some user management classes and routines, The problem is, when I try to use this class from windows application and want to add these c...more >>

I'm trying to analyze a process dump and want to examine an event and what it's targetting. When I !do the object I get this : 0:035> !do 0x02280784 Name: Omnibus.G3.Automation.LiveChannelLibrary.LiveChannelAvailableHandler MethodTable 0x0679efac EEClass 0x06926b64 Size 28(0x1c) bytes G...more >>

I need to read in some images from file. Display them as thumbnails in a form. The user is then supposed to rearrange them in somehow, dragging thumbnails with the mouse or marking one or several with mouse and move with arrow keys. Any ideas? I need a serious pointer in the right way. Is ...more >>

pls chk this and comment on the design. http://createthefuturecontest.com/pages/view/entriesdetail.html?entryID=798 ...more >>