I am trying to find examples of how to extend a program with a snapin. I want to learn from them. Can anybody point me in the right direction. I have found only one so far. I am sure there are more, I just can not figure out where they are. Thx ...more >>

Let's say I do this: MyObject o = new MyObject (this, DoWork); .... where DoThis is a function in the calling class. How do I pick this up in the constructor, MyObject? public MyObject (Form OriginatingForm, <???> ptrDoWork) OriginatingForm.Invoke (ptrDoWork) How do I replace <???>....more >>

Hi, I have a tabcontrol and a panel with some textboxes in on my main form. The tabcontrol is populated will a datagridview and data by a different class based on a selection made. How do I handle a row selection event to update the textboxes on the mainform i.e. passing events between classe...more >>

I have a Form which has a great number of events. I thought I would organize the project by moving some of the code into multiple '.cs' files (since the Form.cs was getting huge). When I move them, it seems that Visual Studio can no longer find them when I open a Button object (for example) an...more >>

Hi, How to call a javascript method from XAML. I am using C# . In the following example, When I click button1, I wish to call a method by name "SetValue(somevalue)" of TestIndex.html file. Here SetValue is a javascript method present in TestIndex.htm file. Let me know if you need any fur...more >>

Hello, I am new to webservices internals and I used the web service wizard to generate the webservice class and appropriate objects. After issueing a request, I noticed that the SOAP message goes like the following format (example): <?xml version="1.0" encoding="utf-8" ?> <soap:Envelo...more >>

Hello, i am regex newbie. I want to extract text between 2 markers. I want all the text that happens to be between <h2> and </h2>. So far I got this: <h2>.*</h2> for this sample input: <h2>hello</h2> <h2>goodbye</h2> <h2>wait</h2> However, the regex also returns the markers, while I...more >>

Hi there, I need my application to be notified when it's midnight. How can I do it? (Someone suggested me to use a timer rising an event every minute...please, telle me there is some other way!). Thanks in advance, Giulio -- OnAir:...more >>

Hi all, below at the bottom are 2 nearly identical overloads for the same method. As you can see the algorithm is exactly the same. However try as I may I cannot seem too create a usefull Generic method, i.e. one that compiles. What I would like to be able to do is something like the follo...more >>

I am declaring an interface and I want to make sure any classes that implement it implement a delegate. But I am getting a compliler error: Error 1 'UpdateHandler': interfaces cannot declare types How do I correctly include a delegate in an interface? Thanks, Ron public interface ICommun...more >>

Can someone please explain to me when you would use a Property instead of a field and wy? Thanks in advance. ...more >>

Hi all When processing datagrid's MouseDown event, I need to know if Ctrl key is currently pressed. Is there any way to check this? It would help if I had keyUp and KeyDown events for Ctrl key ... Thank you...more >>

I have a BalloonTipText property under a NotifyIcon component that exceeds, what appears to be, a 256 byte limitation. It just truncates it. Is there any way around this? Any help is appreciated. Thanks.... ...more >>

I am working through some design patterns, and one recurring theme for me is the need to be able to communicate between objects while promoting encapsulation and loose coupling between them. Based on a couple design patterns I have built a sample app that seems to be a pretty decent model (...more >>

Hi, Can anyone tell me how I can able to catch system event like delete, rename etc through .NET. This means suppose someone want to delete a file from file system and press Shift + Delete. I want this command (Delete) should be caught by application designed by me. So what I do want to know ...more >>

sorry for my not perfect english i am really f&*ckin angry in this common pattern about dispose: ////////////////////////////////////////////////////////// Public class MyClass:IDisposable { private bool IsDisposed=false; public void Dispose() { Dispose(true); GC.SupressFi...more >>

Can anyone point me in the direction of creating a custom listview item? I guess the other question then - is this possible? I want to create a list of listview items comprised each comprised of text and a set of textboxes....more >>

I'm developing a CRUD based desktop application and I want to structure the design so that I don't need to modify the source code to add additional reports. I'm planning to use the version of Crystal Reports that comes with VS.Net 2005, but I'm a novice with this tool. Can somebody can give ...more >>

I am using SharpZipLib to zip some files, and now I want to give the user the option of where to save the zip file. My problem is that I am not sure how to refer to the zip file in my code, when I refer to the zipfile name and allow the user to save the file, all I get is an empty zip file. ...more >>

Hello everyone, IM nearing the end of a peice of work right now - i have everything working bar one tiny line. What i have is 2 Bitmap images that are the same size. What i need is 1 Bitmap image which is the 2 images layered ontop of one another (One of them is mostly transparent). I ...more >>

Anyone every heard of the Regex.IsMatch and Regex.Match methods just hanging and eventually getting a message "Requested Service not found"? I have the following pattern: ^(?<OrgCity>([A-Z][\w ]+)+), City of, (?<OrgState>(([A-Z][A-Z])|([A-Z] [a-z]+\.)))( \((?<OrgCountry>[\w ]{2,})\))?$ (...more >>

I have a select statement that all I want to do is get the number of rows returned in my query: string strSQLAccountInfo1 = "select * " + "FROM orders " + "where user_id = '" + Class1.loginUserid.Trim() + "' "; SqlCommand cmdAL = new ...more >>

I'm teaching myself about delegates and the Invoke method, and I have a few newbie questions for the gurus out there: Here are some CSharp statements: 1. public delegate void MyDelegate (int k, string s) 2. MyDelegate MyDelegateVar = MyMethod 3. MyForm.Invoke (MyDelegateVar) Some questi...more >>

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I have two rather simple class methods coded in Ruby...my own each iterator: The iterator is used internally within the class/namespace, and be available externally. That way I can keep everything hidden about the "instructions table." # Loop through each instruction in the block, yielding t...more >>

Part of an application I am building includes a button which the user can click on to view a PDF file in Acrobat Reader, using the following code: System.Diagnostics.Process.Start(@"C:\Program Files \Adobe\Reader 8.0\Reader\AcroRd32.exe", @PDFfilePath); However the path to...more >>

I have run a query to populate a listview from a table. Works fine. I then add a new row to the table, and want to refresh the list view, so I rerun my 'PopulateView' procedure I have created. But no new rows appear! I check the database, and the new row is there. I close my app, reopen, and h...more >>

Hello, In my C# solution the MathsUtility Project uses a few fortran DLLs. What is the correct way to specify the dependancy of these DLLs? Initially I just stuck the DLLs in a directory on the System Path, this is a disaster as far as running different versions of the Solution (sometimes a...more >>

I need to get the full signature of a delagate in a string. Is this possible? In a control I have: public delegate void Button_Click(object sender, EventArgs e); public event Button_Click click; then I have: private void GetControlEvents(Control cControl) { ...more >>

i have an mdi application with two child forms Childform A and childform B in a nutshell Childform B has a timer with a routine that polls a ip socket for information every 30sec. It does this by calling a method lin the Childform A class. This same method in childform A can a...more >>

Hi I have a text box that can be used for input and I would like to check if the value in the text box that someone types is already in a list of items. I know how to do this in other languages but not in C#. I think i should create an array for the values already in the list - then comp...more >>

Hi, Attempting to use ElfRing Code128ABhrf font to print barcode. private FontFamily family = new FontFamily("Code128ABhrf"); //Fails with ' Font not found' private FontFamily family = new FontFamily("Arial"); //Works OK The font is correctly installed as I can find it in the control pa...more >>