How many System.Threading.Timer timers can os "reasonably" handle? What is the cost in mem? I think this is a wraper for win32 TimerQueueTimer (not sure), but wonder what general implementation is. A queue of objects that one thread keeps checking to see it time expired, etc. TIA -- Wil...more >>

hiAll, is there a way in .net/c# to check if a file is in use with another process. so i am trying to do a File.Move(source,destination)..and if the file is in use, this would through an error..System.IO.IOException.. so before i try to move the file i some how want to check if the fil...more >>

I am trying to code a file uploader (for forum/email attachments) from the client computer to a remote web server via the PUT method (since POST is not allowed [405 error]). However, the upload works ONLY when the file is inside a shared folder on my computer. If I try to upload from any oth...more >>

I've pasted a shortened XML file I have below. The path to the file is strored in a string titled "myFile". What would be the syntax for getting the crse_no and prog_type columns where the sect_key = 176902? Thanks in advance. Mark ************ XML FILE BELOW ********** <?xml version...more >>

Hi, I don't get the difference between a struct and a class ! ok, I know that a struct is a value type, the other a reference type, I understand the technical differences between both, but conceptually speaking : when do I define something as 'struct' and when as 'class' ? for example : i...more >>

Hi! I'm designing several different user controls in c#.net where each instance is supposed to react to the fired events of one "data manager class". How can I (at design-time) tell all the controls (set a DataManager-property) to react to the same DataManager-instance? I hope my question i...more >>

Hello, All! Do you know some free or commercial library for .net or c++ which can read TIFF images? With best regards, Ivan G.. E-mail: ivan_gavrilyuk@hotmail.com ...more >>

Has anyone tried to utilize this class? Unfortunately, the MSDN documentation is pretty weak for this class and the examples they provide are pretty lame. I created a class that derives from System.Diagnostics.Switch and it successfully retrieves the correct value from the configuration file....more >>

Hi, how is a String implemented in .NET : as in VB.NET : using a length-prefix located in front of the actual characters or as in C : using '\0' (backslash null) thnx Chris ...more >>

hi, how can i make my apps to look like MS Outlook with its crafty controls?? Or what microsoft controls do i need to use to create that effect?? thanks. *** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET...get rewarded for it!...more >>

Hello, I want to create an application that allows me to view another users desktop in realtime. I tried sending screenshots at a certain interval of time but it was too slow. Someone suggested me to use GDI Hooks but I dont know exactly what that means, he also told me about installing a "v...more >>

Hello, I am trying to call c++ dll function calls from C#. The c++ dll function takes in pointer to unsigned char array. Can anybody help me in what marshalling parameter value that i have to declare in C# side. For eg: in c++ X.dll the function is: extern "C" __declspec(dllexport) void G...more >>

Hi. Considering the following code, I want this call: Something.Method(); To return "Something". public class BaseClass { public static string Method() { return <type where the method was called>.Name; } } public class Something : BaseClass { } The code ill...more >>

I am reading a binary file spit out from C FILE* I would like to use Marshal.SizeOf() to get the size of the types I'm reading, but I just realized that a C# boolean is 4 bytes versus the C 1 byte. So, I found some snippets that I could play with and thought maybe this would work; int sz = M...more >>

I want to design a datagrid form with treeview inside the row. The datagrid would first display the subtotal of the sales in each row. When user click the "+" from each row, the breakdown sales figure would be come out. Is it possible to do that in windows application with C#?? Million thank...more >>

I'm implementing a tracing class with a WriteLine method, and would like to record the name of the function which is calling WriteLine. Is there a way to do this? ...more >>

Hi everybody. I don't know if this is possible, but I am looking for a way to automatically inject code. I would like to fire a Debug.Writeline() automatically when a method is invoked and when the method exists. Anybody knows if this is at all possible? Or is any other variant possible ?...more >>

I have a Windows datagrid whose column values are (1,10,100,1000,101,10-1,103,11,1710,2). When the column's sorted (the column's of type String), it'll sort this way [1,10,100,1000,101,10-1,103,11,1710,2], which is wrong. But in Windows Explorer, when there are files with these same names , Ex...more >>

With the reflector tool .exe, .dll can be decompile? how can we secure our work? ...more >>

In ancient times I had a desire to make a game and I started to do so, I quickly found the project was beyond the hardware's capability for that era (even in assembler) and had to shelf the project. I retried in the dark ages of computers, when I was in college, and got much further before...more >>

Assume you have a DataView with 50 records that has a DataTable in it. You specify a filter that reduces the number of available records in the DataView to ONE record. What is the syntax for storing that data in a new variable of type DataRow? Thanks in advance. Mark ...more >>

Here should be an easy question. I want to overload the ctor of the class with 2 versions, one takes 3 input parameters and the other takes 2, if I call the "2" version I want to simply call the 3 version but pass in a private variable for the missing parameter. But at compile time, I get "...more >>

Can someone give me some recommendations on source control software for dotnet projects. Regards Dan...more >>

hi friends. I'm still unfamiliar with winform does it have a session or application storage that allows session to be passed from one form to the next ? thanks Tom ...more >>

I want to create objects using directX. I downloaded SDK version of DirectX. I've installed it. Which is the right dll to add to references? I can't find it. thanks -- -Diego (Atos)- -L'uomo è superiore agli animali- -Fanno eccezione il nano e la giraffa- -A.Bergonzoni- -Per rispo...more >>

Hello, does anybody knows which was the new URL for the embedded C# website? The old link www.ecsharp.net does not exist anymore. Thanks Frank ...more >>

I have the need to store some application specific configuration data to be used by a class library and or a windows service. I would like to do this in a fashion similar to the way we do with applications and web services without having to use the machine.config file. I know that I could...more >>

Hi Please tell me how can I find out that the parent of my control is right to left or not. Like MenuItem. MenuItem by itself doesn't any RightToLeft property but when you change the right to left of the form (ex: to true) it will change. By the way please have a look at my previous message ...more >>

I have a very simple serviced component, which is installed under com+ application, but when I go in Component services (status) to watch my com+ in action I don’t see any information that my object vas activated, pooled … Usually I can see that when I work with com object written in old fa...more >>

I'm trying to write a quick migrate tool to convert our old binary flat DB to SQL Server. I thought I would use C# and get started with a managed language. I have found plenty of examples of how to read a binary file into an array of bytes, great. But what do I do with it then? How can I co...more >>

I need to create xml like the following: <item mynamespace:name="MyName" mynamespace:age="100" /> I am using code similar to this: XmlDocument meegoInfo = _LoadTemplateXml("Avatar"); // Create downlevel item XmlNode node= xmlDoc.DocumentElement; XmlElement item = xmlDoc.CreateEle...more >>

I just need to understand this bit. In some code, I had the following give me an error at build time XmlDocument xmlDoc; xmlDoc.LoadXml(xmlString); The error was "unassigned use of local variable" on the second line at xmlDoc I ammended the first line to include " = null" and it compi...more >>

Hi, I am having a problem capturing a key event in a form. The problem I am running into is on a form that returns a dialog result (OK or Cancel which represented by two buttons) and I am trying to capture the enter key event in a certain textbox on this form. Hwoerver the enter key returns ...more >>

Chris-- Thanks very much, but I'm not sure that follow. Are you saying that I can compile a library against the desktop framework and then run that library on a smart device, as long as I check the OS for those methods which are implemented differently on the SmartDevice? Dan "Chris Tac...more >>

Hi Folks, Please advise me on the conversion of EpochSeconds to DD-MMM-YYYY format in c#. given are the few examples. 1093128564 1093128537 1093128419 Thanks in advance. Regards, Kiran...more >>

Hello everybody, I saw the following code from MS and really have no idea, why the attributes have to be parsed twice. Can I omit the second loop? If I lose some data, please explain it to me with a short XML data example. Thanks, Michael Heitland XmlTextReader rdr = new XmlTextReader ...more >>

Hi, i need to import data from table A (Oracle Server X) to table B (Oracle Server Y) i've got my both OracleConnection object initialized & working do u think i can do that using OracleAdapter (Update method...) ? Thanx for your help...more >>

Hi there.. I have a question about instance usage... I created a VStudio 2003 solution within 3 projects as follow: 1) Proj One: Main form 2) Proj Two: User Control 3) Proj Three: Class I need to instance the class in project three ad use the same instance in the user control. i.e. I...more >>

Hi,to all I would like to know how could i put the content of image file into byte[] cause im trying to copy the image as a file and the image its copied at the path that i want, but i cant open cause i dont copy it as a byte[]. Any help will be grateful. Thnx....more >>

Hi. I'm developing a desktop application that needs to store some data in a local file. Let's say for example that I want to have an address book with names and phone numbers in a file. I would like to be able to retrieve the name by searching for a given phone number the fastest I can. I h...more >>

The code in C# looks very similiar to what I remember from Java, but we haven't done much manual coding yet. How similiar are they?...more >>