C# / C Sharp Forum

Is it possible to declare a class as static? I can't seem to do that. What if I need a class that I don't want instantiated? It will contain only static members. Thanks.

Hi all I need to create a windows service that will wait for a file to be copied somewhere, write it to the database, and then move the file to a storage area. I don't know when the file will come in, so I think I need a service vs using task scheduler. Am I correct? If yes, can someone help with how to do this? So far

I would like to ask how to do the zoom function onto the image of the PictureBox ?

Hi All, I have a DataSet with xml file and I want to make a querry like this DataView dv = new DataView(mytable); dv.RowFilter = " Impression < ( MaxImpressions) "; Impression et MaxImpressions is collumns in my table the same querry access database is working but her is return 0

Hi I have a listbox that is based upon a query. This query is sorted by PetName and has the PetID and the PetName field in the query. It is based upon this table Pets which obviously has this fields in it. However, I can not find any examples of how to keep the data insync between the query and the table. I do have it working through...

I'm trying to encrypt a string into ASCII, and it seems to encrypt fine, but when I write it to my SQL Server database all the ASCII chars between 128-159 and 191-255 are replaced with the ? symbol. I know that ASCII values 128-159 aren't supported by Windows and 191-255 are non-English characters, but I've never had a problem with these...

Hi everyone... Does anybody know which is the best way (good performance) to implement an Event Sink that responds to the arrival of a mail to a specific folder in Exchange2000 using C#??? Any help would be appreciated!!! Ricardo Trujillo Medellin-Colombia

how to use C# dll files in the C++.net?? Can anyone give me an example ?? regards, Liu Guidong

http://support.microsoft.com/?kbid=306683 I've implemented a project as described in the knowledge base article (accessed by above link). However, when I try to execute the Excel part of the program, I get an error saying 'An unhandled exception of type 'System.Reflection.TargetInvocationException' occurred in mscorlib.dll' The Access,...

Hi, all, Can I run message pump in C# to yield cotrol to other window messages while my main thread is waiting for lengthy procesing to finish? In C++, PeekMessage(), TranslateMessage(), and DispatchMessage() will do the job. For some reason, this seems not working in managed C++.

this may be slightly OT, but how does one get the computer name in .net? in C it's GetComputerName(). thanks!

HI All, I have an Image. I want to clip a portion of it and copy to another image. How to do this? I know the bounding rectangle to clip. Any suggestions please. Thanks for your time and help. Regards

Hi all, i am new at this area and have a question about the pen class. i am not able to set the width for the object: Pen bluePen = new Pen(Color.Blue, 3); and giving me an error: Projects\MyProgram\Display.cs(65): No overload for method 'Pen' takes '2' arguments

You could do somthing like this in your page Control c = CreateChildControls(); c.FindControl(); >-----Original Message----- >Hi All, > >Is it not possible to call a function defined in a user control from the web >application containing the control? >

After I assign a role to a user how can I read what role the user is in later on other than checking User.IsInRole ()? Is there a way to directly read the user's current role as a string value?

Dear Friends, I need communicate C++ methods into C# Program.If anyone knows the sample code or Links.... PLease let me know... Thanks, Dev

I am having problems adding a user control onto a winform at design-time. When i try to add it, i get an error that pertains to a line of code in my user control where i load an xml file. It seems it takes the relative path (which at runtime points to the application directory) and looks for it in the visual studio .net 2003/Common7/IDE...

Hi, I like to ask what can be an ideal solution for this type of situation? We need to schedule a job every night that will basically extract data from the DB and mail that out to our clients. I am thinking of creating DTS package and using VBscript to instantiate SMTP object or creating a standardalone EXE that will basically do the same...

Hi all think I am runing into .net limitation here. it's not a .net's fault, but I try to get the clicked text whenever a user click on some text in a windows app and holding down a key e.g.ctrl key. as the same time.(similar to a program called gator, atomica does), now since .net doesn't support global hook, I have to swith back to VC++...

hi, i'm having a problem using C#'s lock and windows2000's text to speech (vtext.dll) ... basically it looks like the callback from the TTS is violating C#'s lock, which looks very very suspicious. here are the particulars: i've made a form that has two buttons, one to "start speaking" and one to "cancel speaking", and i've registered the...

There's got to be a better way to do this. In this sample code, I've created a class in a namespace, and a class inside of a class. On calling .ToString() for those two classes, I see different output: name of Class1 is: ConsoleApplication1.Class1 name of Class2 is: ConsoleApplication1.CMain+Class2 I'm not interested in the...

Hi I have a form and need to display an image that is returned along with other data, i.e. Member Data, from a database row. How do I display this image in my webform? S

Hi, I have made a component that contains a Dataset object. I would like to expose the contained dataset at design time so that I can bind GUI controls to it. I have implemented the IListSource interface on my component {as a pass through to the Dataset's IListSource interface} but that does not seem to be enough to get the Forms...

Hi! I am making HyperLinkColumn in datagrid. It is simple to make the hyerlinkcolumn with one datafield. <asp:HyperLinkColumn Text="NAME" DataNavigateUrlField="NAME" DataNavigateUrlFormatString="http://www.aaa.com?Name={0}" SortExpression="NAME" />

Hi, There is any build in method to draw an arrow in the Graphics object? If not, anyone can send me a sample to draw an arrow. Thanks in advance...