HI, Please look at following code example: string convert2string(byte [] bys) { string string1 = Encoding.ASCII.GetString(bys, 0, 30).TrimEnd(null); return string1; } byte [] allzero = new byte [40]; string dbstr = convert2string(byte); After I get dbstr(which is empty), I w...more >>

How does one gain access to the WebBrowser (SHDocVw) control to the extent of the one used in VS.NET Start Page? I'm familiar with using the control directly, I've written a tutorial on it, and am familiar with HTML Applications (HTA), but how are features like the right-click context sensitiv...more >>

Does one have to adhere to the usual boundaries from the underlying protocols? What happens when you write a byte[] which is for example 50 kb to the stream? Greetz, -- Rob. ...more >>

Hi all I are stuck on a problem with RichTextBox control. On a simple form - a label, a richtext control, a button, in the button even method I write: private void button1_Click(object sender, System.EventArgs e) { try { string name = this.richTextBox1.SelectionFont.FontFa...more >>

Dear All, I have two forms and each form has one button. When I click the button 1(on form1), the form1 will hide and the form2 will show. My question is how should I do if I want to click the button2(on form2) the form2 will hide and the form1 will show ? Thanks, PP ...more >>

Hi. Who can recommend a good obfuscator or protector? I prefer if it's free, or at least not expensive. String encryption would be nice. Thanks ...more >>

Hi, When I add a label to my form and sets the backcolor to be exactly the same backcolor as the form uses...they differ - why is that ? -K ...more >>

Hi : I search some articles explaining how to make a little VectorialDesign application with simple shape like line circles etc ... in C# thx !!! ~leo~ ...more >>

The help file for Visual Studio .NET version 1 had a Walkthru for installing a Windows Service that would monitor a folder. Version 1.1 does not seem to have that example anymore. Could someone please send or redirect me to an example of doing this? Thanks, Troy ...more >>

am using config file DB connection.It works if i use it as application(appname.exe.config). Now i changed the application as a class library and referring this dll from some other webapplication.Now the connection string is null.How to overcome this problem. With Regards ...more >>

Hi! i have a memorystream object that has a byte array representing a sting. How do i tranform the byte array into a string. Thanks, Uzi ...more >>

I have a small application that when launched I want it to prevent another instance of itself being launched. I tried singleton design, but it only limits the creation of one instance of an object within an application. I want to prevent a user from launching the application, then while i...more >>

Hi, I knew you could do this with java - I think it was the interface "Serializable" - can you do this with C# too? I'm looking for a way to binary write a whole ArrayList. Can this be done? thx ...more >>

I have a windows app whose main dialog contains a button that launches a form. I've tried using Form.Show() to have it launch as a modeless form, but it behaves as if it's modal (i.e. parent form can't receive focus)... Can someone tell me what I need to do to make the child form modeless...more >>

I am building an installer for my app using VS 2003 setup project. Installer is checking is there .NET framework installed on a target machine, and by default redirects to MS download page if there is no framework. I would like to redistribute .NET framework within my .msi package. Can I do so, a...more >>

Hi all, I am confused the mappath does not support virtual directories any more? I realize that the ".." for the virtual directory to go to a higher level root is not supported in .NET any longer ... but I can't get the mappath to work with the backslash/forwardslash/ and no-slash to work eithe...more >>

Hi, I'm writing a windows explorer like application. The GUI is divided by a vertical splitter. To the left I have a tree control. To the right of the splitter I would like to display one of several different user controls according to what is selected in the tree control. Now, I can do...more >>

Introduction: As we all know, values of any class may be assigned to a reference of a superclass. This is simple polymorphism. So if you have a class A and a class B that inherits from A you can write a method that returns an instance of B and assign that to a reference of type A. (Trivial) ...more >>

Hello all, I have a form class that implements the imessagefilter interface public class frmMain : System.Windows.Forms.Form, IMessageFilter I also have this implemented bool IMessageFilter.PreFilterMessage( ref Message m ) This class actually interacts with the twain driver and that's ...more >>

This sounds like a trivial task: I'd like to change the default color settings for certain system elements (e.g. Control, Meu, Window) inside a C# program programatically during program initialization. All UI controls which have one of their color property set to one of these settings (e.g. butt...more >>

Yesterday I was giving a presentation on the Trace Class to my user's group. For the purposes of the presentation, I wrote a quick app that used a configuration file to set the TraceLevel of my switch. I wrote the app under C#\VS.Net 2002 and hand wrote the config file. When I opened the appl...more >>

Where can I find the Reference Manual for C# on my DVDs. I have the MSDN Professional subs. Thanks Lamar ...more >>

Hi: I want to create Bmp by fellow code,and it good work, Bitmap bitmap1 = new Bitmap((Image)iData.GetData(DataFormats.Bitmap)) but i want to cut the part of the Bmp now . How to do it ? for example : Bitmap bitmap2 = new Bitmap(bitmap1,bitmap1.Width,bitmap1.Height - 100); but now b...more >>

My program has 4 tabs with a few usercontrols that each have a lot of controls on them. Added to that a few oleDb database connections etc. Because of this the program spends a lot of time during InitializeComponent() (>30sec on a P3-900MHz) I would like to display a "splash" screen that display...more >>

Scenario: i have a little programm that uses OleDb.connection to connect to a database... the datasource is C:\programm Files\Database.mdb now i want to change the datasource for the connection while i am reading the datasource string from a file !!!! Cause the user want to put the database a pla...more >>

Hi all, I am using both "perfmon" and GC.GetTotalMemory() to keep track of the heap memory space usage of the following simple program. Both ways suggest that the garbage collector cannot reclaim all "dead" memory. Any idea? using System; using System.IO; namespace test_leak { //...more >>

Hi all i need the help to read a bmp file which is basically a Scaned sheet like a Score sheet of the Test Examination so if anybody is having some ideaes than please help me. Thanks and regards. -- Ashutosh K "God Give the Life only Once so Live it and Enjoy it." ...more >>

Hi there. I had 3 questions to ask. 1) Public Event ButtonClicked(MessageBoxNumber As Integer, OKButton As Boolean, CancelButton As Boolean, ExitButton As Boolean) --> how to code this in c#? If not mistaken, if they used the keyword WithEvent i will use delegates and events. But ...more >>

Is it possible to keep open more than one connection to different servers with only one TcpClient? If no, is it safe to create about 50 instance of TcpClient class? Thanks! ...more >>

what is the method to send a binary file to a client from a webservice ? what is the method to receive/download this binary file and save it to the local machine in a client application ? THANKS!...more >>

I not a beginner at C# and I am looking for a book that will skip the whole variable and scope and class explanation and get down to core stuff. Any suggestions? Benito...more >>

Having developed with VB since 1992, I am now VERY interested in C#. I've written several applications with C# and I do enjoy the language. What C# Needs: There are a few things that I do believe MSFT should do to improve C#, however. I know that in the "Whidbey" release of VS.NET cu...more >>

Hi, I'm just getting started with real OO design and programming and am after a little advice. Basically, I've got a Customer class and an Agency class. The Agency class inherits all the properties and methods from Customer but I have come accross a couple of problems: I've got a Save, A...more >>

Hi all, while editing a datagrid cell, if i press Enter key focus goes to the next row, instead that i would like to have focus on next cell, how can i obtain this. Thanks & Regards, Nanda...more >>

Just wondering how you would break a string such as first and last name together, into two separate strings or variables, each containing the firstName and lastName. I am a newbie at C# so any help would be great! Thanks Brad ...more >>

well, at least for the forseeable future, it looks like. i've always thought mauricio aguilar was a loony for continuing to post these job stats, when we all know C#/.NET jobs HAVE to go up sometime and equalize as VB and other non-.NET microsoft tech jobs go down. also, search engines can f...more >>

Any suggestions on how to track a NULL value received from SQL Server in a DateTime field? I have come up with two and I'm not convinced either of them are good solutions. 1. Assign a predetermined value (DateTime.Date.MaxValue... or something like that) in place of NULL and check for that whe...more >>

Hi! I want to write 3 datasets from different tables into a xml file. i thought that would work using a dtd file. But i can't find a solution for my problem. At the moment i can only write one dataset into an xml file: i do that the following way: DataSet ds = ThemeManager.getThemes(them...more >>