Hi ! I have determined, that Path.InvalidPathChars does not return an array with all invalid path characters. For instance the question mark (?) does not appear in the array, but it is not possible to create a folder with a question mark (?). How can I get the whole range of invalid path cha...more >>

Hello, I am New to the C#.Net, i want code for insert values into the database.(in C3#.net) Regards, A.Sireesha. ...more >>

When trying to install the Composite Ui Application Block software I get the following error message "An unexpected error occurred generating the Visual Studio Solution files. You may have to manually create solution files for the projects you have installed." What is wrong? How can I in...more >>

Hi All, I would like to ask how can one resize a frame in a website w/o postback? My scenario is the following I have a left frame, a top frame, and a "contents" frame. I placed an imagebutton in the top frame that once clicked, it will fire a javascript code the will resize the lef...more >>

I need to use a HTML textbox in C# code. Any hints, please? Thanks ...more >>

Hi, Is there a way to find out how many bytes NetworkStream Read/Write actually read/wrote when there is an exception (i.e. socket read/write timeout). Or, can I assume that if there is an exception that no bytes are read/written. Thanks, Charles....more >>

Hi, 2 web pages, One of them has properties that I need to read in a second form: First Form public class FirstForm : System.Web.UI.Page { private void submitButton_Click(......) { Server.Transfer("SecondForm.aspx") } public string UserName //property ...more >>

Can someone explain this one to me ...? Add one Label and one Button to form . Set RightToLeft of Label to True. try this Label1.Text="12345."; on display you will see ..12345 the decimal jumped to the wrong side if you then do this Label1.Text = Label1.Text + "00"; on screen you wi...more >>

This concerns controlling access to methods in different classes. The meat of it is as follows: public class CommsControl { private InputBuffer ib = new InputBuffer(); private OutputBuffer ob = new OutputBuffer(); ib.StartComms(); ob.StartComms(); } protected class I...more >>

Hi, In MVC++ it is possible to override PreTranslateMessage. Is this not possible in a form under C# ? - H...more >>

Hi, How can I display a jpeg image on a Picture box or Panel and be able to set scrollbars to it. Thanks -zs...more >>

Hi ! I have a question : the ComboBox control have NO single border, and height is at least 1 pixel higher than TextBox. There is absolutely NO good reason for making a ComboBox looking that way. My question is WHY Microsoft did that in the 3 versions of Visual Studio/.NET releases ...more >>

I've a c# app that I execute on a remote machine, which works as I expect it to, but when I encounter an error on the remote machine how do I know what's going on, since it's a remote app? For instance on the remote app that I execute I check for the existence of a file, and if it's not the...more >>

Hello, Maybe this has been covered in the past in this group, but I wasn't able to find any references. If it has been covered, please provide me with a link of some sort. I'm trying to rename a directory, eg.: C:\TestDir\Dirname1 to C:\TestDir\dirname1, as you can see, this is only changed...more >>

I'm looking at this code at MSDN: http://msdn2.microsoft.com/en-us/library/system.collections.ienumerable.aspx using System; using System.Collections; public class Person { public Person(string fName, string lName) { this.firstName = fName; this.lastName = lNam...more >>

Hello all, I need some design advice for my web service. I' have written a web service that exposes a function that takes some parameters and return an xml. The function have up to 10 parameters. There are many situations where the function returns an error xml. The parame...more >>

Hi All, How do you think i can get this to work.. Der1.GetCallingClassType() should return Der1 public class Base { Base() {} public static string GetCallingClassType() { //how do i set the value for str return str } } public Der1:base { Der1(){} } p...more >>

Hi all, With the followin code: class MyClass { public int i; public MyClass(ref int I) { i = I; } } class Program { static void Main(string[] args) { int i = 50; MyClass c = new MyClass(ref i); Console.WriteLine(c.i); ...more >>

In a DataList, I'm using the following: <%# DataBinder.Eval(Container.DataItem, "characterization")%> I was wondering if it's possible to create a string that would contain the value of the above line, so that I can manipulate it: I tried string resultText = DataBinder.Eval(Container.D...more >>

I've been asked by senior management to create and deploy a keystroke logger application (log to a local or network folder). Active directory already blocks the target users from opening task manager (they won't be able to see it running) so it needs to be straight forward and just capture ke...more >>

I'm developing for Windows Mobile 2005 PPC using Visual Studio 2005. I need to invoke methods on a DLL (Iphlpapi.dll) but I can't get this working from C# using p/invoke so I want to write some C code that invokes the DLL. Similar to this: http://msdn.microsoft.com/library/default.asp?url=/l...more >>

Hi, I have a custom form that works fine when I debug it or run it in release mode but cannot be loaded in the designer... Actually, it can be loaded in the designer when no control is on it, but the resizing tool (in the designer) is offset both horizontally and vertically and when I put a ...more >>

I am trying to read the appsettings section of a configuration file using the ConfigurationManager object (ASP.NET application) with the following three lines but for some reason the ConfigurationManager does not recognize there is an appSettings section in the file and the last line throws an e...more >>

ok i have a datagridview in my app and i have a function defined like so: public void FillColumns(ref DataGridView theDGV) when i call it ... like this : FillColumns(ref dataGridView2); i get : Object reference not set to an instance of an object. i dont get it , is'nt my datagridview ...more >>

I recently got into somewhat of a debate with a fellow co-worker. First I asked him if he new of a way to add a method to an existing class like enhancing a class but without using Inheritance. He asked, "Why on earth would you want to do this? Just inherit." I told him other dynamic language...more >>

I looked high and low for code to do this and finally found some VB code that did it right. This is a C# flavor of it. public event EventHandler<EventArgs> MyEventToBeFired; public void FireEvent(Guid instanceId, string handler) { EventArgs e = new Eve...more >>

Hello, I'm hoping someone might be able to help me out. I'm creating a shared assembly with my interface definitions similar to the following. When I try to compile the RemotingInterface, everything works. When I go to compile the RemotingServer assembly, I receive the following error message. I...more >>

Hello, the objective was to print a filled circle to the picturebox, and print the color name to a textbox each 2 seconds. Following is the code I used, however, I could never see anything except the last item in the arraylist being printed, tried different ways to iterate through the colors,...more >>

Hello, I'm new to C# and I can't seem to manage doing something which is supposed to be very simple: I have a table in SQL Server with 2 columns: Id, Name. I have a form in visual studio 2005 in which there is a combo box. I want to fill this combo box manually (not using binding) with these ...more >>

When an object is register to event (delegate marked as event) with one of its methods, what happen when the event is raised if the object is dead (finalized)? In this case the delegate invocation is trying to invoke a method on a null object, this should generate en exception. What exceptio...more >>

Hi all, I am working on a VPP and i would need some help. I built my VPP using the model in the Sept 06 issue of Visual Studio Magazine article RESTful ASP.NET app (Page 46). I got the code done (In C# instead of VB.NET) and if i use the url http://locahost/Test all i get is the 404 messa...more >>

I have a CSS file which shows things perfectly in IE, but it doesn't work in Opera. If I change the CSS file for opera then it doesn't work in IE. We only support these two browsers. What I need to do is find out which browser I am in. If it is IE then load CSS1. If I am in opera then load...more >>

I'm trying to figure out how to make a SmartPart visible on my screen through a SmartPartPlaceHolder. I have the following code (I don't have so much understanding of CAB yet so there might be a few things wrong here and there - I hope you can help and correct me): //------ CABTest2 project...more >>

Is there an easy way to copy an Embedded Resource file to the file system? I have a config file that is an Embedded Resource in my project that I want to copy to a location in the file system but the only way I can think of doing it is to read it and then create a new file and write to the file....more >>

Hi I'm using .NET Framework 1.1 My application needs to read the system's language settings. How to do this? Thanks. ...more >>

There are situations where you want to retry/rerun the same code again (if user wants) for unlimited times for a particular exception thrown. For example in situations like there's no CD in the drive or some file is locked by another process you want to display message dialog to user with "Ret...more >>

-> How to convert any image(8,16,24,32 or 64-bit) to 8-bit grayscale -> i have tried to convert a 24-bit image to grayscale using setpixel and getpixel functions, in vb.net but i am unable to save that image in grayscale format.How do i do that.It still saves in true color format. -> i used p...more >>

Since a thread doesn't have a Stop feature and I'm not supose to use abort, I'm wondering how I stop a thread? My problem is that I simply want to excute a function in the background and possibly "restart" it. What've been doing is essentially: if (SerialRowThread != null) { Seria...more >>

The following code result in the following compilation error: Error 1 Cannot implicitly convert type 'int' to 'short'. An explicit conversion exists (are you missing a cast?) short a = 1; short b = 2; short result = a + b; Can anyone explain why?? ...more >>

HI guys, I am developing an application using c# sharp.I have a base form and all other forms inherits from the base form. all was running so well until i was given the task to find out which inherited form is actually being used. i.e i have a button in my base form and on clicking th...more >>

Help me to validate a checkbox wherein i want to display different messages when the checkbox is checked and unchecked..... ...more >>

Hi, I have an occasion where it would be useful to add attributes to individual enum members, and I can do that very well enough, the problem is: how do I access them "after the fact"? the obvious Thing foo = Thing.Bar; object[] attrs = foo.GetType().GetCustomAttributes(false); does n...more >>

The following code: public __gc class MyClass { public: void MyFunc (int __gc* number); }; Generates the following metadata for C# when compiled in VC 2005 with the /clr:oldsyntax switch in a DLL project: public class MyClass { public MyClass(); public void ...more >>

I'm trying to define an enum which will be used from unmanaged c++, C++/CLI managed c++ and from C#. I defined the following enum in a VS dll project set to be compiled with the /clr switch: public enum Days { Sunday }; After building the project, I added the created DLL as a refer...more >>

This is for an educational program in which the user is asked to type things and have the answer validated. I can manage alternative spellings, but if the user types "ikipedia" when the answer is "Wikipedia", I'd like to do something special. I tried to search for this, but I don't know what...more >>

I've heard it's possible to extract information from a game as it's running. For example some people extract the RPM of a car and have a real tacho connected to their PC, or just log certain information to a file. How is this done? I've tried google but can't find anything because I'm not sure...more >>

Hi, I'm wondering if someone can help me with some design questions I have. I'm trying to create a class in C# to represent my customers. I know how to create teh Customer class and all, but my problem comes with some conceptual issues I have: Let's say I have a business layer and a data...more >>

Question 1. i am using StreamReader Class like this... string str = string.Empty; StreamReader sr = new StreamReader(fsIn,Encoding.Default) while ((str = sr.ReadLine()) != null) { // wanna get line Count of Sr } i just want to get a count of s...more >>

How do I create an inherited form in a Class Library project ? ...more >>

I want to catch the event when I click the listview. However, if the listview is empty, I cannot catch the click event. ...more >>

Hi, i´am searching a good tutorial "how to create buttons" (the images/Icons) like the look and feel from vista. I want to polish up a C# dialog application. How do you make the icons ? Thanks in advance, Howie...more >>

Hello, I have a problem with an IIS server on windows 2003 server. I developed a web application on Windows Xp with the standard classes Membershi(System.Web.Security.SqlMembershipProvider, System.Web.Security.SqlRoleProvider). When I finished my development I copy my Web application on the ...more >>

test ...more >>

Hello! What is the recommended way to solve design when creating system today. Assume you use windows forms. You can use thin client PC(terminal server) which is a special kind of PC where you put all the execution on the server and only show the presentation on the client or you can use a tr...more >>