Why do software industries go for C# than VB.Net ? Wats the exact difference... Which can be the best option.. ...more >>

I need to store and sort a list of key/value items. The key is a date (year and month) like this yyyymm and the value is a string. The key must not be unique and accepts doublon. With this Table I need to sort by key (date) and make a search for extracting some items. Wich collection can do t...more >>

After I've added the menustrip and the toolstrip to my MDI windows Form (and I've added their respective items), I notice that the items disappear. They're still in the code, but the association between the bar and the items (i.e. toolStrip.Items.AddRange) disappears. How come? This is happeni...more >>

I want to be able to give the customer a visual representation of a product ID number for ever time the program compiles. Currently we save each instance and have to reply on a very long global ID to communicate versioning between our developers and clients. What is the best method to increm...more >>

Hi, I am getting the error message Attempted to read or write protected memory. This is often an indication that other memory is corrupt. It was not coming until yet, for around 2 months. Now, may be the records have increased and so i am getting this. anyone has any idea why and when do w...more >>

short x = 1; //this has build error saying missing conversion x = x + 2; Why can't you just add this? I guess the 1 is a literal that translates to an int32? How would I accomplish this statement? ...more >>

Hi programmer people. A vendor of mine uses an Excel workbook as an order form. I'm trying to write a csharp code in VS '07 that could import the workbook and edit it. I am able to import the workbook into my project. What syntax do I use to initialize the workbook as an object so that I...more >>

Hi Folks The new footy season is almost with us, in England anyway :) I've just created a public league on the Times **FREE** fantasy football league game so if anyone wants to join up please do. My league is called Red Dwarf Crew and it's public so no password needed. The game seems p...more >>

How to create screen logger class from WinForms application. It should have the following methods: Open() - creates a window in screen Writeln(string s) - writes text to this window Close() - closes the window The issue is with Open() function. How to create a window which remains in scr...more >>

I have an ID which I pass from the QueryString["id"]. The id is integer only and I want before performing any action to validate if the Id is valid integet. ...more >>

Hi, I have a string line = " DOL : 12/04/09 " I want to remove the white spaces and to get the string like line = "DOL : 12/04/09" ; i have th e following coding but it is not going to if statement. line.Trim(); if...more >>

Is it possible to bind a Dictionary to a DropDownList ? The most obvious code fails : Dictionary<string,string> dictionary = new Dictionary<string,string> dictionary.Add("Name1","Value1"); //add some more items ... DropDownList.DataSource = dictionary; DropDownList.DataBind(); The d...more >>

Hello, I've created a custom DataGridViewColumn. Everything work well, except for some reason the column doesn't accept some of the chars: "q", "." and "'". Did anybody have a similar problem? Please let me know. Any help will be gratefully appreciated. Thanks. my code: public class R...more >>

I'm writing a data driven app, its all just about finished but i havent decided how to store the data. I'm looking at some form of database. Requirements: Easy to Distribute, hopefully just some hard disk files. Relatively quick to query. I think in this case, speed is secondary to ease of us...more >>

I know this has been answered, I just can't find it. can someone point me to a URL or thread that shows how to install a web service in a Windows Setup Project ? I need to install a windows app, but it must install a web service in IIS too....more >>

I have a class with public members, and I need to know whether those members have been explicitly initialized. I could accomplish that with a class like this: class C { private bool m_isSet = false; private object m_object; public object MyObj { get { ...more >>

Hi, I have a following strings strA = " 1 my first work out". strB = "2 my second work out" strC = " My last work out" My strA and strB first char is int and strB first char is " ". I want to check if in a string first char returns int (1, 2 or ---) then do this otherwise do ...more >>

Hi, I have a 3-column listview. It has to return the value of the cell when the user click the listview. The SelectedIndexChanged event and ItemSelectionChanged Event only return the row information (ListViewItem). If I want to return the cell value of the second and the third column, which ...more >>

Hello... I am making a Sytem.IntPtr with Marshal.AllocHGlobal(int) (Allocates memory from the unmanaged memory of the process using GlobalAlloc - MSDN Definition for Marshal.AllocHGlobal) and after copying the data from a byte[] buffer to the IntPtr(with Marshal.Copy), I send the IntPtr to an un...more >>

Hi, I have some C++ static library which I would like to wrap and use in C# applications. It appears that I have two options. 1. Wrap the static library as dynamic library (dll), use unmanaged C++. Then invoke the method in C# by DllImport. 2. Wrap the static lib using managed C++, whic...more >>

All, Does the folder that an application will look to for updates need to contain the source files for the project, or the published .exe and associated files? Thanks in advance. ...more >>

I am interested in deploying .NET binary remoting in a few applications, and I have learned how to do remoting via interfaces so that I don't have to share the actual class code with the client (although the interface definition has to remain in a shared DLL). Now I am trying to figure out ...more >>

I have a website that does all kinds of maint. functions for our systems. One of the things I'd like to do is be able to restart a service that's on another computer. Can somebody point me in the right direction to do that? I think there may be issues of user privileges. TIA - Jeff. ...more >>

I started a new job and the version of Visual Studio 2005 that I am now using does not have the Navigate Backward Button nor the Navigate Forward Button in the Standard Toolbar, and they are not available when I Add or Remove buttons from the Standard Toolbar. (I had these two buttons in the V...more >>

I'd like to disable the validation on a datagrid, in order to validate only when the user click the OK button. How can I do this? ...more >>

Hello I would like to create an installer to my C# project. BUT 1) I don't want my user to install the .net framework 2 manually, because many will just give up installation. 2) I don't want to create an installer with .net of 22 or more MB because my application is only 2 MB so it is ...more >>

Dear all, I am writing an application which constructing a fairly big tree for some financial pricing application. How can I increase the heap size of the .NET runtime environment? I have tried doing it in Java before which I can set use the /mx flag in the java runtime. How to do equivalen...more >>

Hi All, How to limit the c# program can only run one instance at the same time ? Thank you! Best regards, Boki. ...more >>

Hi All, I want to make my form's border as MSN like. ( no border ) However, sometimes, it still can show up the border for user to choose other functions. The issues is - when I set border between None and 3DFixed, the background ( maybe desktop or another application form ) often become ...more >>

Hi, What is the right way to dispose of a NativeWindow? I guess the NativeWindow is managed code and will be cleared by the GC, but the window handle it is holding is a native handle! I'm using the standard dispose code: NativeWindow nativeWindow; protected void Dispose( ...more >>

Is it possible to serialize a COM class for which you don't have the source code? Obviously it won't work without the [Serializable] attribute, which I can't add, and implementing ISerializable on a derived class won't help because I don't have access to the private fields that I would need to w...more >>

Hi All, I have some special strings in c# code, and I complier it to exe file. I opened the exe file by a UltraEdit, I can't find the string I define in code. Does that mean other people can't find the string as well? Best regards, Boki. ...more >>

I have 120 .cs files in single directory containig POCO s like: Entity1.cs: namespace Model { public class Entity1 { string property1; public virtual string Property1 { get { return property1; } set { property1 = value; } } } } Entity2.cs: namespace Model { publ...more >>

Can this be done via .net generics? How? The % signs below are just to show how I want to do it, I realise they're not valid syntax. public abstract class BaseSelectionRequirement { ... protected Type mControlType; protected string mFieldName; protected Type mFieldType; protecte...more >>

did you see the CNN or BBC dekstop news alert software? I want to develop the same but for banner advertisment and I want to if I should do it as system tray ir windows services? ...more >>

Hi, Is there an equivalent code for "WithEvents" (of VB6) in CSharp ? Yoav. ...more >>

Hi, I read image data from a database and cache them locally to file via a filestream. One of my users commented that his application isnt showing images. On checking his file cache I found that most of the files were only 1 byte in length. I deleted all the files, re-ran the application and ag...more >>

..net 2.0 I'm trying to create a 2-dimmensional (sorry if i speld it wrong). List<string, string> hello; this code doesn't work What I want from this is a list where each item holds 2 values. one value specify the type of info the other value have. The field specifying the type could b...more >>

Hello All, Suppose the Contents of Text file is: Name Age Address AAA 5 #22 BBB 8 #99 -------------------------so on Can anybody tell me how to split this and insert this into a multidimensional array?? ...more >>

Hi, I have this simple sample code: class SearchRange { static int m = 0; static void Main(string[] args) { Discover discover = new Discover(); // Add discovered device handler discover.DiscoverUpdate += DiscoveredDeviceCallback; // Add progress handler discover.Progress...more >>

I am getting the error"Invalid page fault". I cannot reproduce the error while in VS, so I don't know what to look for. Any suggestions? Many thanks, Adrian. ...more >>

..net 2.0 I have a Dictionay object Dictionay<int, string> in my app. This dictionary holds values like these: 0, "NOOB" 0, "HELLO WORLD" 0, "TEST" 1, "BUG" 1, "CRASH" 1, "NOOB" I want to perform a check against this dictionay object to determine if a specific key & value already exi...more >>