hi everrybody, i want 2 make a higly secured guard lock which no 1 can heck...... here i hav already make a login page, change password page,and file uploder page with encryption.. bt here i wana , when i store a encrypted file on that perticular location...more >>

I am looking for a date custom webcontrol that extends from System.Web.UI.WebControls The control will expose the following Properties to the page that implements it Date (datetime) Month (int) Day (int) Year (int) MinDate(datetime) MaxDate(datetime) The control will expose the follo...more >>

Hi all. I'm trying to build an application that will communicate with web server. My application (in C# 2005) will be communicated with some web application (using PHP). For example, my desktop application (application A) want to login and get data from database, but i don't want the applicati...more >>

Sorry if this is a repost. My original post appears to have disappeared. Is it just me, or is the generic SortedList<T> missing a GetByIndex method. The old (non-generic) SortedList has a method that, given an index into the sorted list, will return the value of the item at that index. The...more >>

Hi all, What is the easiest way to call C or C++ functions from C# code? Via a DLL file? Thanks, Greg ...more >>

just as the subject states, I need to find a way to read each line from a multiline variable without having to write the string out to a file so I can stream it in and use ReadLine(). Below is a snippet of code where I am trying to read the string that has been passed into the function. ...more >>

Is there a way to pass a class to the SelectedObject of PropertyGrid and have it only show the properties in the child class and not those in the base class's that it is derived from? Thanks. -- John Olbert ...more >>

i'm working on a windows service that needs to check the system's clock every minute and see if there are any jobs in my database taht are scheduled to run at that time: sSql = "select * from tblJobs where runTime = " + dtTheCurrentSystemTime are there any classes designed to allow me to m...more >>

I used the same approach as the one described here: http://blogs.msdn.com/jonathanswift/archive/2006/10/02/780637.aspx The only catch is that the project which I am trying to compile into a dll is half written in C and the other half in C++. What were the developers thinking !?! I am using Vis...more >>

I am new to interfaces. My simple string parameter in & return of string worked fine. BUT I need something better - - accept as input a structure, Where is the structure definition maintained ? how isi it used ? Is this possible & how ? using System; using System.Collections; nam...more >>

Hi all, I've got a URI (ip/port) that has a web service on the other end. I can't access it through VS Add Web Reference because it requires authentication. How can I find out the interface the service provides? Thanks for any tips, cdj ...more >>

Hey, Am trying to write a lambda expression for a delegate, am getting an error as ------------------------------ only assignment, call, increment, decrement, and new expression can be used as a statement ----------------------------- For the following code. // Delegate Declaration de...more >>

I've written a memory game Windows application that consists of 16 pictures and the object of the game is to find all the matching pairs of cards. When you first start the game everything works fine. If a card match is found both cards are removed. If the two cards selected are not matches the...more >>

Hi all, How can i handle windows events. For example i what to know all times when new folder creates. Thanks ...more >>

Hi NG ! I would like to add additional information to a .resources file. For instance the translation date, How can I add this information to the .resources file of a form? In the resheader, the information will be deleted during the generation of the .resources (using resgen). Is there a poss...more >>

I have a situation where I'm getting in Image that has a gray (solid, same color) background with a smaller white rectangle inside. The position is not always the same. What I need to do is locate the postion and determine the size fo the white rectangle and then crop the image to leave only...more >>

I am reading a text file using TextReader reader = new StreamReader("file.txt"); like I have done many a times before. I then execute the statement string a = reader.ReadToEnd(); this string is then sent into a function to convert its contents (hex string) into a byte array. Well when this p...more >>

Hi all, I'm just having one of those days where seemingly easy problems are giving me a devil of a time. Here's the scenario: Company's fiscal year runs from 10/1/YY -> 9/30/(YY+1), i.e. 10/1/2006 -> 9/30/2007 Users are required to enter a FromDate and ToDate for services needed. The ...more >>

Hi, I have a collection of objects and I need to compare each item in the collection to see if it's a match on any or all of the others. I have stored my collection in an item like so: "List<PossibleDups> dups" where PossibleDups is an object of my own creation. I have been looking at how...more >>

This is a simple question so please bare with my ignorance on this topic. I want to build a project that I want to share with multiple development group. ...more >>

Writing C# database app with VS 2005, I need to have a text box that computes and displays only a total from a datagridview computed totals column. I did this before with VBA with the following: =nz(WorkOrderMaterial.Form![Total Parts]) How would I do this with C#. I have added the co...more >>

looking for the best approach to reading a real time log file. The file gets updated pretty quickly, always appended to the end. do i really need to just keep re-opening the file and reading the end of it? I cant help but think there is a better way to go about this. any suggestions would...more >>

Writing C# database app with VS 2005, I need to have a text box that computes and displays only a total from a datagridview computed totals column. I did this before with VBA with the following: =nz(WorkOrderMaterial.Form![Total Parts]) How would I do this with C#. I have added the co...more >>

Hi, This is a very simple question so please bare with my ignorance on this. I want to write a piece of code which does a common task (independent) which reads xml input and process something and then create an xml output. I want to share this code with different groups, I have 2 questions on...more >>

What is the most current (for framework 2.0) and easy way to copy recursively all files from folder "Folder1" to folder "Folder2" ? Is there any simple function in the framework to do that? -P ...more >>

Hi All, Am just getting into handlers at the moment and had a question. How would I write the code (the 'public void example handles cell doubleclick...) for a method to handle a double click in any cell of a particular datgridview column? Thanks for any help. ...more >>

hello, i'm new to c# and wanted to know a simple way to hide forms-stuff (like buttons) depending on a user level: example: user1 logs in -> userlevel admin -> everything is just fine and visible user2 logs in -> userlevel oh_no -> only the log off button is visible it should be possi...more >>

Writing C# database app with VS 2005, I need to have a text box that computes and displays only a total from a datagridview computed totals column. I did this before with VBA with the following: =nz(WorkOrderMaterial.Form![Total Parts]) How would I do this with C#. I have added the co...more >>

I have a working VB.NET 2005 (.NET2.0) solution that works. When I translate the code modules, form modules to C# I get all sorts of build errors, much of which are related to scoping of methods. I have the following given in a form module: using System; using System.Collections.Generic; ...more >>

Hi All, i do have an array list of objects eg: ArrayList al=new ArrayList(); al.Add(new MyOb(1); al.Add(new MyOb(2); from this i need to access a particular object values , how do i do it?? eg: From the Arraylist how do get object with vari...more >>

Hi, I've been playing with generics and I was wondering if anyone could tell me why the following doesnt work, and if there is another way to do it public class A<T> where T : B, new() { public B Get() { B b = new B(); b.X = this; ...more >>

Hi colleagues, I need your advice... I have approx 1,5 years experience with ASP.NET/VB.NET 2005 and I have to switch over into C# 2005 language. I don't have experience with C# 2005 language. (> but 10 years experience in mainframe languagues). My question is: I need a good book can some...more >>

Hi there. I'm coding an encryption / decryption program. At this very moment, I think I should be pretty close from the end, but there's something blocking me on my way. There's a "Padding is invalid and cannot be removed" error raised when closing the cryptostream (or FlushFinalBlock-ing i...more >>

Hello everyone, I am implementing a simple C# OLE DB Provider (C# COM Server). For C# (managed code), I am wondering what is the entry point (which coclass and which method), client will invoke at first? It is clear if I write my own client, but I am confused about other clients which ...more >>

Hi all, Suppose I have a table in the page. Now I want to print the table only, don't print any other contents in the page. Is it possible? Thanks in advance....more >>

Dear All, How to disable cookie when using webbrowser ? Thank you! Best regards, Boki ...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 >>

Hello there. I've got a DLL written in C convention. There're a few of enum types that I would like to make available to C#. Is there any easy way of doing this (exporting, etc.), or do I have to redefine all custom types in C# (especially enumerations)? Normally, I go over these problems b...more >>

Hi, Is there any way to query whether or not a keyboard is attached to a pc please? My software will be running on XP/Vista systems in an environment where there may or may not be a keyboard/mouse attached to the system. thank you ...more >>

It seems that my program is dead lock after running this sentence (bold) private delegate void updateBuildingDetailCallBack(String key, = String Value); private void updateBuildingDetail(String key, String Value) { if (tabBuildings.Controls["lblBuild_Reso...more >>

Does C# have the ability to define array properties, as in Delphi? For example, does the following have an equivalent in C#? type TMyGrid = class { ...some code... } property IntegerCells[i, j: Integer]: Integer read GetIntegerCell write SetIntegerCell; property StringCe...more >>

Hi all. I am writing a component library that does not have an interface. I would like to create a class that allows the worker thread to callback the mainthread so that the Form interface does not have to invoke the main thread before updating the control. Would this be possible? If yes, h...more >>

I have an application that has 4 threads answering phone lines. The threads make calls into a static class' functions. Assume there will be 'concurrent' calls into any function. Smallest function I could find is public static void Play_Invalid_Option(AxVbocxLibrary.AxVBocx Vbocx1,string sLa...more >>

I neeed to instantiate an UserControl in an aspx page like this: <MyNamespace:MyControl ID="ctrl1" runat="server" MyParent="<%# this %>" /> where "this" is the current aspx page and should be assigned to property Parent contained in MyControl class. Above code is contained in a PlaceHolder....more >>

..NET 2.0 On my form I have a DataGridView, I want the rows in this DataGridView to have different background colors. The data presented on the rows are of 3 types: A, B or C.... For the user to easy see what type the data on each row have I want to individually set the background color of ...more >>