Can anybody tell me how I can call the Pick Icon Dialog from C#? I couldn't find any example. Thanks....more >>

When using the C# for the Matrix Transformation for a 100x200 panel: 1. To Reverse Y axis, I can: Matrix m = new Matrix(new Rectangle(0,0,100,200), new Point[] { new Point(0,100), new Point(100,200), new Point(0,0)} ); 2. To Reverse X axis, I can: Matrix m = new Mat...more >>

I am trying to call a method in a .net assembly, the intellisense says it is "void SetValue(int * elem, float * elem)" How do I call that from C#? What is the * for ? Pete ...more >>

Hello, I am trying to split a XML file to multiple small xml files in vb.net and am trying to get the best possible approach to this. Any help on this will be great... Sample example on what I am trying to do... Any help on this will help me a lot. Thank you KB Source XML document ------...more >>

I'm getting the following error when I run the mostly unmodified DX SDK texture tutorial code in SharpDevelop: System.NullReferenceException: Object reference not set to an instance of an object. at Microsoft.DirectX.Direct3D.D3DX.GetUnmanagedDevice(Device device) at Microsoft.DirectX.Direc...more >>

look at this picture http://upload.cs99.net/e.gif i use the function SHGetFileInfo to get file icons. but these icons are not very nice. there are some black things round of the icons. many applications use system icons for files. how did their programmers solve this problem in these apps? ...more >>

Hi, Can C# operator overloade? Any good links (Google turns up empty) -- regards, Summa ...more >>

I want to know can I add printer programatically? E.g. I want to create a File Printer to a specify local port, say, C:\test\test.prn with the name as FilePrinter Can I do so? Thanks! Regards, Mullin ...more >>

Hi I want to write a very basic app that simulates pressing "ALT + N" several times. I know you can use SENDKEYS in VB, but don't know how to do it in C#. This app will be used to simulate pressing a "&NO" command button on a different application. Thanks Slasher --- Outgoing...more >>

Did anybody see this bug? I tried to reproduce that using 12-hour and 24-hour system settings. Anyway it still causes a problem in VS2003. When I convert DateTime to a string using default ToString(), like DateTime.Now.ToString() C# returns me this string instead of a correct one: "19:25:35 ...more >>

If i derive from UserControl my Control apears in the toolbox. But I want to extend existing Controls like Button , treecontrol . I found some hints which attributes to set but i didnt succeed till now .. [ ToolboxItem(true) , DesignTimeVisible(true) ] [ Des...more >>

Is there any sort of formatted reporting (outside of just a datagrid with results of a query from a dataset) that is available within the .NET framework or is a 3rd party tool needed to do this reporting Thanks in advance Tod ...more >>

How can you start with a maximised view on a datagrid? It's not very user friendly to look at initally when you have to click the small arrows to view the data. Surely there must be a way of maximising the data at startup ?? doug. ...more >>

As the subject says, I have a font problem. I have a richtextbox that gets the selectionfont from a combo box populated from the InstalledFontCollection. There are a number of fonts that the richtextbox will not update to properly. Amongst these are: Raavi, Shruti and Tunga. When I set the se...more >>

I am using Reflection.Emit to dynamically build a class. A method of the class to be built requires a Parameter of type "Type". But I don't know how to use Emit to pass a call of "typeof()" to the method. The method could look like this: public void myDynamicMethod(Type type){ //......more >>

Hello everybody, I have exe (a.exe) file that runs on COM+ environement the executable loads a dll(b.dll) which has a reference to a XML file which the dll uses to parse. The problem is that I am unable to provide in a proper location where the dll could read in the XML file. As the ex...more >>

Hi, I was wondering how to create an instance of a System.Type variable (if it is possible). For example: object someMethod(System.Type st) { object o = new st(); // I know this is incorrect return o; } I know the above line is incorrect, but it is the best was i could descibe ...more >>

Hi! I have this code in a class called activity: public Button[] getActivity(DateTime startDate, DateTime endDate) { TimeSpan ts = endDate-startDate; int arraySize = ts.Days; Button[] btnActivity = new Button[arraySize]; return btnActivity; } that I call with this: ...more >>

I have a Windows Forms app in C#. I created the myApp.exe.config file and it works fine if I just run the exe. When I try to debug it from Visual Studio it does not see it and throws an exception. The .config file resides in the same folder as the source code. Thanks! ...more >>

Hi, how do I validate a date using a RegularExpression ? e.g. 05/20/2004 (May 20, 2004) What is format to be used ? Thanks Chris ...more >>

Is there an official max length for the string (System.String) class? Thanks! Derrick ...more >>

Hi I have a problem with the development environment I have a DLL (jproot.dll) versionned 1.9.0.33 that I have shipped to my customer My customer made a DLL (cust.dll, versionned 1.2.3.4) that depend on jproot.dll In the manifest of this cust.dll (ildasm), it is written that it depends on jpr...more >>

Does calling Close() on a System.IO.FileStream object cause it to go null? Is this code MyFile.Close(); ... if (MyFile != null) Console.WriteLine ("File not closed"); valid? The documentation mentions Dispose() being called, but does it go null automatically, or is th...more >>

Where can I download the Primary Interop Assembly for Microsoft Authorization Manager? All I found on msdn so far are PIAs for Office XP and Visio. ...more >>

Hello! I have a program with three views ------------------------------------ | | | | 1 | 2 | | | | | |--------------------------| | | | | | ...more >>

I have a COM object build in C#. I want to use this object in another COM object, built in C++. What's more, I want to return a pointer to the C# COM object from one of the methods of the C++ COM Object. Here's the fragment of my IDL library BarLi importlib ("foo.tlb"); // Contains definiti...more >>

I have been looking at interfaces in C# and cannot seem to understand = them. I am told that interfaces resembles a class with no code and that = methods declared in an interface are not allowed to contain method = bodies. My question is what purpose does creating an interface serve = that has m...more >>

Hi all. I am trying to figure out the differences between overriding and hiding a method name. The only difference i can see, is that with name hiding i can change the method access level. Are there any other differences? Thanks, Sharon. ...more >>

Hi, I have a quick question - I have a table where the primary key is an autogenerated GUID via SQL Server 2k. The table has just 2 fields, the PK and the ChangeDate. When I do an insert into the table w/ the date, the PK is generated, but I need to have that PK value returned to the a...more >>

Is their an easy way to have the FileSystemWatcher object catch files that may already be in a watched directory? I have a situation where files could be in the directory before the service starts. Thanks, Matt ...more >>

How can i get the coords of a simple click on a windows form? ...more >>

I was looking at a VB.NET program that is passing strings to method calls using ByVal. I was wondering if this is for a reason and, if so, should a C# conversion of code samples from VB.NET also use an equivilent rather than passing strings by reference? ...more >>

How to determine whenever Panel is scrolled? I have one Panel with AutoScroll property on. I would like to secound Panel move it's content the same as the first one without having scroll bars. I should set the Location property of ClientRectangle of the secount Panel the same as The first one...more >>

I am wanting to include a web browser in my application. I have used = the COM Microsoft Web Browser control but when I run the applicaiton I = get a waiting icon and the page never displays. It's not my firewall = denying the application and I am unsure as to what is going wrong. Can = anyon...more >>

Can any one please give me a pointer on how to use resource file(s) specific to a Class library? This class library will be used by different (windows based) applications. Progress: -- I have embedded the resource file to the class library and compiled it. It has generated the resource s...more >>

I have a common assembly DLL that's installed into GAC (using msi created by a setup project). It contains classes used by all the applications we have. This works well but when I increase the version number (say, from 1.0.0 to 1.01), all existing applications have to be recompiled even if the c...more >>

I have created a toolbar bandobject like the googlebar. I cannot figure out what kind of menu it uses. On the Search Web there is a drop down arrow. Some kind of menu type object opens. It does not look like a drop down control. Do you know what it is and how I can get that functionality? ...more >>

Hi all! Im going to develop a timetable with c# and asp.net. Does anyone knows of any good site where i can find information? I have googled for a while, but cant find anything. /Marre ...more >>

Hello, Once I've distributed my application how do I diagnose my customers errors (not that they'll be any). It doesn't seem to output any kind of error log file, is there one? Any clues? Thanks, Bob...more >>

I'm using the following code in an attempt to obtain a list of available serial ports. I expected to retrieve the same values as listed in hardware manager in Control panel but I'm not. I'm being returned COM1 and COM3 when I should be receiving COM1 and COM4. I've also a USB to serial convert...more >>

System.Management.ManagementException: Provider failure I am getting this error when trying to get information on an external CD Rom Drive using WMI class Win32_CDROMDrive. Any ideas? The computer is a Tablet PC and is running XP. It is connected to a docking station which the CD drive is p...more >>

Getting SQL Exception when trying to implement Connection based Trasaction using SQL Helper class. I am using the follwing function to execute my stored procs: -=-=-=- ExecuteScalar(ByVal transaction As SqlTransaction, _ ByVal spName As String, _ ByVal ParamArray parameterValues() As Ob...more >>

HI can i box and unbox a reference so that i can achieve a 'pointer to pointer' effect. i want to pass a reference as a parameter to a function and then have the function change what the reference is pointing to.. many thank tham...more >>

Hello Thanks for reviewing my question. I am trying to consume the Keydown event of the Cntrl-shift-E in a textbox and have noticed that when I press key this combination a beep is made even though the event works correctly? How can I get rid of this beep? I thought that setting the e.Handled t...more >>

how can I use the line contorl like VB? or draw a line on the Form thank you!...more >>

This is hriday, wants to create an asp.net web page using c#. I want the validation, account creation, account updation, and account deletion of my user should happen using the active directory services. I use DirectorySearcher Object which works only with LDAP provider. I want my web pa...more >>

Hi, simple question XmlDocument doc = new XmlDocument(); FileStream file = new FileStream (PathAndFileName,FileMode.Open,FileAccess.Read,FileShare.ReadWrite); doc.Load(file); should I now call file.close or do I not need to?? Thanks Nick...more >>

Question: Is it possible to download (with a request from my Application) a newer Version of my WebService during my Application is running? Or if the WebService is installed on anoder Server, that I can download the WebService with the new URL: bla/bla/webServiceName?wsdl Thanks for an...more >>

Hi all Can anyone please tell me how to perform validation an a control based on a value in another control. i.e. If control A == "Hello" then perform validation on control B, otherwise don't perform the validation on control any ideas Thanks eveeryon Kevin...more >>

how can I get a string(chinese character) from a text file thank you!...more >>

Hi I'm using following code to send the emai MailMessage myMail = new MailMessage() myMail.From="mymail@myServer.com" myMail.To="mymail@myServer.com" myMail.Subject="subject" myMail.Body="Body" SmtpMail.SmtpServer="myMailServer" SmtpMail.Send (myMail) The problem is...more >>

I was checking out the 101 C# Samples, specifically Windows Forms - Use the Clipboard. I took a look at the code for a while, and I understand what the program is doing with the cut, copy, pasting via the file menu events using the clipboard. However, what I don't get is how is the program able to p...more >>

I'm going batty trying to figure out why this is not working. I'm trying to find all objects within a class derived from CollectionBase which meet a certain criteria, but the search seems to be skipping some objects. The following code is supposed to start searching the InnerList from the begi...more >>

hi Is a reference a special type in C#. For example when i d MyClass aRef what are the classes that are available that i can use to probe aRef as a reference. My real goal is to make a serializable reference and to recreate the link during deserialization. Thanks...more >>