Simple Googling only results filling controls with information -- not this. The scenario is, that I have a whole table in my dataset. I know the ID (autoincrementing integer field) of the row to grab data from in the dataset. How do I get all the data of that row in the dataset?...more >>

Hi, I have a class with a public property that I don't want to display in ma propertygrid. Is is an attribute to hide this property ? J-L ...more >>

Hi, In .NET there is attribute named ObsoleteAttribute which is derived from System.Attribute Class. This attribute when applied to a target (class or method etc.) gives a compiler warning/error. I know we can write our own attributes by inheriting the System.Attribute but I want to make i...more >>

..NET 1.1/2.0 I have a need to display high-resolution scrollable images in a .NET application (Windows Forms). One well known solution is to create a Panel with AutoScroll set to "true" and then add a PictureBox or another Panel to it, that is used to display the image. The above approach ...more >>

I'm new to C#. I am using the following C# method to populate a TreeView control. If you call this method once during the life of form then it works perfectly. If you call the method a second time (without closing and reloading the app) then the process list populates the TreeView control...more >>

Hi, Its been a long time since I have had the joy of feeding parameterized query CommandText strings to an OleDBCommand object. I have tried all manner of versions of " update foo set bar = @bar where id = @id" I have wrapped the fields in square brackets and the parameters in square bracket...more >>

Hi, GetNextSequenceNumber2 worked for me in a different class.. but now it does not work.. it does not increment.. will it not get incremented after the return? private static int GetNextSequenceNumber1() { lock (padlock) { ...more >>

Hi. Is it possible to retrieve the text I printed in a stored procedure using PRINT command when using C# SqlDataReader? Any idea? Thanks for every hint, Jan...more >>

I am looking for some help about the method below which partly works. The problem is that the data returned is truncated in that the returned data has missing bytes near the beginning of the data. I am using VS 2005 and C#. Has anyone got any ideas? public string getWebPage(string url) ...more >>

Hi, I'm trying to make a programme that will use the above mentioned database, but I can not find how to create any relation between the tables, all there is in the database explorer is DATA CONNECTIONS DATABASE1.SDF TABLES REPLICATION I can create all the tables, a...more >>

I have a C# console application. The class which contains the "static void Main()" method inherits from a base class. The base class contains a function GetSomething() When I try to call this function GetSomething from Main(), I get the error An object reference is required for the nonst...more >>

Using Windows Form C# in .NET 3.5 I have 12 controls on a form. When one of them is clicked I want a common event handler to do the processing and substitute a single property on the form. There is a different value for the property in each control. Is there a standard way to determine wh...more >>

I'm trying to send emails using the SmtpClient class and, while the messages get sent, I can't seem to get any status information to that effect. I've hooked in to the SendCompleted event, but it never fires. Can anyone suggest why or tell me how to find out whether the email was sent or not? ...more >>

When i compile this function I get the error Cannot convert lambda expression of type System.delegate because it is not a delegate type. private void SetStatus(string status) { if (this.InvokeRequired) { this.Invoke( status => SetStatus(status)); } else ...more >>

i have need to build a program in C# that will collect specific data for a service on remote machines. i see how i can use "win32_process" to get threadcount and handlecount of a service. but i don't see how to get the memory usage as seen in the task manager. i have a service that runs ...more >>

Hi, I have the folloving code: Public class MyForm : Form { …… void SomeMethod() { a = new Obj1(this); Thread t = new Thread( new ThreadStart( a.CallMethod ) ); t.Start(); } } Class Obj1 { Public Obj1(Form myForm) { parent = myForm; } Public void Cal...more >>

Hello, an assembly I want to reference is installed in the GAC and doesn't have a local copy (e.g. somewhere that is not c:\windows\assembly...). How do I reference it from VS2005?...more >>

I'm wondering if there is an easy way to programmatically determine if an assembly is installed in the GAC. This would be similar to our ability to easily determine if a file exists (File.Exists(path)) - but for an assembly, of a particular version, etc in the GAC. I have googled this an...more >>

Is there an easy way for a .NET application to determine the version of Mscorlib.dll and System.Xml.dll that is is actually using? Given that System.Xml.dll has been revised several times (within .NET 2.0), I'm wanting to find out if my program is running in an up-to-date environment. Th...more >>

hey all, is there a way to have my stored procedure generate an error message that i can catch in csharp? thanks, rodchar...more >>

Hello all, using System; namespace Test { [AttributeUsage(AttributeTargets.Class, AllowMultiple = false)] public class FactoryAttribute : System.Attribute { public string Identifier { get { return id_; } } private string id_; pu...more >>

I have a project that I've been working on for a while, where several forms use DataGridViews to represent database information. The forms are .NET 2.0, in Studio 2005. For the past couple of days, whenever I click the little arrow in the top-right corner to show the DataGridView Tasks subwind...more >>

Hello, I have 2 questions about using array lists. 1. I have a method which returns an arraylist. I'd like to put the contents of what is returned into another arraylist: ArrayList al = new ArrayList(); al.AddRange(obj.getArrayList()); The two lines above fail miserably. 2. Can th...more >>

Hi, I am trying to convert a double to a string. The problem the value of the double may vary and I need to always the exact value without the exponential and without rounding. Example: double 0.00000000000000000000023 should be string 0.00000000000000000000023 and not 0.00 or 2.3-E24 I t...more >>

Hi, I have a weird situation. I have a base form for all my mdi child forms. I have added new control to the base form in the recent past.. and they show up in the new forms that i create. but i just realized that they dont show up in my old forms, forms which were created before the contro...more >>

Hello, I am trying to do the following with a loop because the amount of channels can change. uint Chan_1 = 0; uint Chan_2 = 0; uint Chan_3 = 0; uint Chan_4 = 0; uint Chan_5 = 0; uint Chan_6 = 0; uint Chan_7 = 0; ...more >>

Is there any practical way to protect .NET demo programs from being reverse-engineered? This will be for a one-shot thing, and I'm far from making any money on this, so I'd prefer an economical solution if that's available. I'm thinking a combination of code 'obfuscation' and maybe a timeout,...more >>

Hello, I created an SQL table using the Adjacency Model described here: http://www.sqllessons.com/categories.html By using this model I am able to hold many categories and subcategories in one table. I then need to create a Site Map using <ul> and <li> HTML tags. I am trying to solve 2...more >>

Hi, I'm new to this WCF world, and have attempted to create a WCF service which takes a typed dataset as its data contract. I know this isn't always put forward for interopability, but I'm working in a pure .Net environment (.Net 3.0) and VS2005. However, how do I get the client to populate...more >>

Hi, How do I convert a byte[] to an object[]? I am trying to use IADs PutEx and the last parameter required a variant array. Thanks, Alex ...more >>

Hi Everyone, I have been having a bizarre problem when I do Run Without Debugging (I have been doing this do to the intensity of some code which runs slow when Debugging). When I run without debugging, the application appears hangs on this code: private static CCPix ClusterListHas...more >>

I have an dataset that populates a selectionbox. I'd like to get the value of the column "id" of the selected item in the selectionbox afterwards. How would I do this?...more >>

Hi ! I have a DataGridView with a Date (DateTime) Column. When a user edit the cell and change the date I woulk like to allow him to write "081501" and programmatically transform the entered date to "2008/15/01"( using a custom method called TransformDate(string ARawDate)) But I can't ...more >>

Hello all. I have a project that I am working on and I need some suggestions. First, I have a class that contains a value and a reference to a parent class. For example: public class Data { public Data ParentClass; public double Value; } .... Data d1 = new Da...more >>

Hi, VS2008 Trying to implement a simplified version of Mike Gold's tutorial on Drag Drop. My problem is that the dragover event handler never appears to pass over a node. I move the 'envelope' all over the tree view but FindTreeNode always returns null. The event handler e member appears t...more >>

Hi, In the source code for System.Web.MVC the generic class is defined as: public class ViewPage<TViewData> : ViewPage I want to create my own custom ViewPage class, and inherit from the generic type. I tried: public class MyViewPage : ViewPage<TViewDate> I get a compile erro...more >>

When creating a Bitmap object in C# with Bitmap temp = new Bitmap("(filename here)"; What is put into memory? Is it just the bitmap info header or is the entire bitmap loaded into memory? If it is the entire bitmap loaded into memory, how can I access a bitmap without loading it entirely i...more >>

Hi, How can I use a delegate that I can set to call a non static function but of any instance of the class ? eg class TypeTeader<T> { delegate T readDelegate<T>(); readDelegate<T> ReadFunction; public TypeTeader(readDelegate d) { ReadFunction=d; } public void read<T>(Binary...more >>

I am new to C#, and created a simple Windows application in C#, just to test the logic needed. This was a simple log-in which contained a single namespace. Namespace included a class (in its own .cs file) containing regular expressions to validate the format of the entries (user id an...more >>

Hi I want to use reflection to call a method which accepts "params string[]" as an argument I've searched this group and found a better idea than invoke, just cast to an interface and then call the method directly, but I would still like to know if this is possible, e.g. something like the...more >>

I've got a textbox where I filter the input in the KeyPress event to allow only certain characters. However, If the user cuts and pastes a text into the textbox, all text is entered - not only the characters allowed. That doesn't surprise me, but what is the best way of avoiding that and st...more >>

I have a base class that implements IDisposable. Then I have a derived class, in which I write the following: public override void Dispose() { } ... only to get an error: cannot override inherited member ...Dispose() because it is not marked virtual, abstract, or override. Why??? How a f...more >>

Have a weird one. The application works fine on some printers, doesn't on others. The problem is that I have a one page report which uses several fonts and fonts of varying size. The only one I am having trouble with is the OCR font (see code below). On some machines, when they print to the...more >>

I am trying to use the following; I have an array with bunch of values in it. I am trying to find a value that contains part of the string I am passing eg string[] array = {"help","Csharp rocks"} if (array.Contains<string>("Csharp")) { //here I want to get the actual string like "Csharp ...more >>

Hi: I am trying to get access to the event after a window has been resized. The events I have been using SizeChanged and Resize all fire after any pixel size change. What I am trying to achieve is after the window has been dragged to a new size (or maximized/restored) then I redraw the ...more >>

Sorry about that previous one. I pressed enter too early. How does one go about mapping a network drive in C#. i know you use MapNetworkDrive in scripting languages, but i'm not sure how to do it in C#. It doesnt seem like C$ would use MapNetworkDrive....more >>

I have a couple of customers who are using a program that deserializes an XML file, and on some files, the program fails to see the content of the file -- treats it as zero length and reports "root element is missing" -- even though in Notepad the file looks normal. Has anybody ever seen t...more >>

I'm looking into a production issue related to a windows service and System.Timers.Timer. The background is the windows service uses a System.Timers.Timer to periodically poll a directory location on a network for files and then copies these files to another location (on the network) AND then up...more >>

I've created a UserControl comprised of two controls, a DataGridView and a DateTimePicker. I've done this because one of the columns in the DataGridView will hold a date, and when the user clicks on the column, the DateTimePicker will appear. Now for the problem. I want the main program to...more >>

I have written a winform application not I need to run the same app in colsole mode without user interaction. Is there an easy way to do this? I have all the information available as input in the seperate file so.......more >>