Hi, i m having a problem getting the focus on the form, i m starting two form one after another, here is the sequence. first is splash second is dialog taking values main() { Start new thread and start splash in it with Application.Run() or splash.ShowDialog After some work i close...more >>

are System.Data.SqlClient.SqlConnection thread safe? can many threads share a System.Data.SqlClient.SqlConnection instance without any synchronization? ...more >>

Hi All, I need the C# code to open a windows directory. Regards, Shilpa ...more >>

Hi, In c#, I need to dynamically create types at runtime that will consist of the following: - inherits from a given interface - will have a constructor with an int argument - Will have an event handler (derived from the interface) - Will have a method that will return the value o...more >>

Hello, I work with a vs2005 solution that has about 10 pretty heavy duty projects. All projects have dependencies among themselves via project references (as opposed to DLL references). As you can imagine vs2005 takes its sweet time when I press the run/debug button. So as an experiment, I...more >>

Hi All, I want to write C# code to identify a file type and open the file in the associated editor. For example, text files should be identified and opened in notepad, html should be opened in internet explorer/netscape/mozilla. At design time, I do not know if internet explorer/netscape is ...more >>

I am using C# to connect to a MySQL server and I need to be able to save a fully qualified path into a table however MySQL strips out the path separator character "\". Is there a way in C# to replace all occurrences of "\" with "\\" in a string? thanks......more >>

Partial Classes allow you to split code between two or more physical files, and during compilation they are re-joined, or so the book says. If that's the case why is it that I must have namespace using directives in both classes otherwise I get build errors? Cheers Steve Le Monnier ...more >>

I am trying to read the output of an external application using redirected stdout and StreamReader::ReadLine(). The problem is that ReadLine() blocks and I am either reading nothing or just part of the output. I start a new process from my app to run the external app. StartInfo.RedirectSt...more >>

How can I check for the exisitence of an object in C#/Asp.net? I have a routine that initailizes form values based on a loaded up object, however if the object hasn't been created I get an Object reference not set to an instance of an object. Is there a function I can use to see if the object...more >>

Hai All Can anybody please tell me what are the standard registry locations that are affected by Virus's , Spyware and Adware Programs. Thanks in advance Regards Vighneswar ...more >>

At line unitsInStock.Add((double)dr.GetValue(1)); I get same error: Specified cast is not valid If you comment out above code line and also Response.Write(unitsInStock[0]); then the code works fine. That means it works for productName array. My purpose is to populate an array from SqlDataRe...more >>

I want to fade a color to another color in a user control. Actually the color is the BackColor of the User control. What's the easiest way to do this? Thanks, Joe ...more >>

hi if i want to do this in c#, where HomePage_MainListSelected() is in another class than this code , how do i do it? becaise HomePage_MainListSelected does not exist in the current context according to the comiler. the class HomePage_MainListSelected() is in, inherits from the class the e...more >>

there is a function in UA2011.dll : void stdcall read_201(HANDLE h201, short *addat, unsigned long leng) Now I write this code in c# like this: Class Uac: [DllImport ("UA200.DLL") ] public static extern void read_201(int h201, IntPtr addat,long leng); I use read_201 to collec...more >>

I'm looping thru a reader object for SQL Server. Two of the files I'm returning are the "UNC" name of a server and a "File Path". Data looks something like: UNC = \\10.246.16.18\MYSHARE File Path = "\MyDir\MySub\myfile.txt" I'm trying to append these two fields to a string and I'm only ...more >>

I have a dataclass that was created by a code generator. A snippit of its output is as follows: namespace SoftwareAG.EntireX.NETWrapper.Generated.laf801n1.Groups { public class Laf801n1 { public class Laa001a2 { public string environment ; public...more >>

Hi, I need to convert a unicode string to ASCII. I can simply use getbytes method to do that but i would use some characters since Unicode is 16bit. But i thought there might be some way to convert characters like "=FC" to "u" or, "=E5" to "a". Or a chance i can find a conversation table? ...more >>

Hi, Does anyone have an example of doing this? Regards Simon. ...more >>

Is it possible to override a specific instance of a virtual, generic method? IE: using System; class Base { public virtual void Test<U>(U u) { Console.WriteLine("Base.Test {0}, u); } } class Derived : Base { public override Test(string u) { Co...more >>

Hi Everyone, I have a custom control on my application and I am trying to pass the data items from the selected custom buttons back to a ListView. I'm sitting here scratching my head thinking I should know this. The ListViewnamed ListView1 resides on Host_Horizontal_Btn "Form1".cs and my ...more >>

I need to create a Regex to extract all strings (including quotations) from a C# or C++ source file. After being unsuccessful myself, I found this sample on the internet: @"@?""""|@?"".*?(?!\\).""|''|'.*?(?!\\).'" I am inputting the entire source file string and using it with RegexOptio...more >>

Is there a format that can be used in DateTime.ToString() that will allow you to get only the century of a given year. "yy" of course doesn't work, that returns the year itself, not the century. ...more >>

Which method is the best to read a RTF File in C#? StreamReader sr = new StreamReader(filename, System.Text.Encoding.GetEncoding(1252)); while((rtfContent = sr.ReadLine()) != null) { builder.Append(rtfContent); } sr.Close(); Is it better to read a RTF file with sr.ReadLine() or sr.ReadToEnd...more >>

Hi Anyone knows if there is any free or comercial RTF generator/writer for C#? I want to generate RTF files with text, tables and probably other things too. regards Tomaz ...more >>

I almost never use enumerations. I've been given a class by using XSD /c on a schema file. This will be used to generate an XML file It gives me back lots of classes Anyways one of those classes is public class Transmit{ [System.Xml.Serialization.XmlElementAttribute(DataType="integer"...more >>

Since I upgraded to VS2005 - when I drag a stored procedure onto a dataset now - the datatable is setting maxlengths for some of my fields. Is there a way I can default the designer not to set the maxlengths. (I don't want to go through each column and set it to -1 by hand.) Same thing for the...more >>

In this slightly contrived (though small, complete and perfectly formed) example: public class Inner { public event EventHandler InnerHandler; public void DoSomething() { if ( InnerHandler != null ) InnerHandler( this, EventArg...more >>

I didn't know where else to post it, so I posted it here. Since it's more technical than anything, I assume that you guys have an answer :-) I've been trying to find an answer for this question for some time, but I haven't been able to. I have a client with a small business that wants me to ...more >>

System.Drawing.SystemColors is a class with all static properties. Here is what my short-ranged goal is... I want to enumerate all of the SystemColors properties and print the name (using reflection), and I am able to do this: PropertyInfo[] props = typeof(SystemColors).GetProperties(); ...more >>

Subject says it all really. I'm being passed a string, and I'm wondering if theres an easy way to determine what exactly the string points at? Cheers Chris. ...more >>

Hi, I am trying to use the ItemCommand in a datagrid (web form) to display *fields* from the specific row. Each row in the dataset has a primary key. The dataset single table is filled from a data adapter and SOME of the fields are displayed in a datagrid. Everything groovy, no problem. Now...more >>

Hi, I have an applicationthat calls Application.Run from main, and this generates a FileNotFoundException. The solution has the main program and a number of DLLs, and it is saying that it cannot find one of the DLLs or its dependencies. Yet the DLL is present in the application folder, and it...more >>

How can you subclass a control and override just a sub-property like Font.Size? I was trying to do something like this: namespace Compeat.Common.Controls { public class MyTextBox : TextBox { public MyTextBox() { this.Font.Size = 12; } [DefaultValue(12)] ...more >>

I want to generate a usable filename (no path, drive letter, or extension) from strings from various sources (dates, database fields, user entry, etc). I'm trying to use the following line and regex to replace any invalid characters with an empty string. However, it doesn't work. I've tested th...more >>

Hi I new to C# and trying to store/extract a collection of multidimensional arrays. For example; string[,] a_DATA = new string[10,3] object[] o_CON = new object[10] for(int i=0;i<10;i++){ for(int j=0;j<3;j++){ a_DATA[i,,j] = i + "x" + j } o_CON[i] =a_DATA } H...more >>

For your N-tier solutions. Have you architected your UI, Business, and DAL layers into one single project or have you separated them out into separate projects? What would be the benefits of having all 3 layers in one project vs breaking them out to there own separate projects? ...more >>

i posted today my day has been totally fruitless. there must be someone out there that knows enough to figure this out? ...more >>

Hi The code below demostrates an issue I'm having with with NetworkStream: using System; using System.Net.Sockets; namespace TCPCTest { class Class1 { static void Main(string[] args) { TcpClient tcpc = new TcpClient(); tcpc.Connect("localhost", 15015); byte[] bytea...more >>

I posted earlier but no replies. I have made some progress and have managed to figure out (i think) syntax for connecting to the act database from c# only problem is it doesn't connect. When i ask for the error code it's -87 which is listed in the SDK as not being able to open the database. h...more >>

Hello, How can I know that the Manual Reset Event object done WaitOne(). I have a condition and I want to do Set() to Manual Reset Event in it but I have to know that there WaitOne() was done on it before. How can I know that? Thank you! *** Sent via Developersdex http://www.developersde...more >>

I have a class with a DataTable built into it. Various places subscribe to the DataTable.RowChanging event. I want to grab a list of all the subscribers. Normally I'd use GetInvocationList, but that only seems to work on events that are defined in the same class. Events declared inside a d...more >>

Hi there I have a rather annoying problem. In .NET 1.1 I could have 20 controls (labels, textboxes etc) without any problem and the painting went satisfying. Now in .NET 2.0 whenever I have more that about 5-10 controls on one form, the painting is extremely slow. I use a lot of nesting wit...more >>

Hi all, I have these classes public class Base { private string str; private string str1; public string MyStr; { get { return str; } } public string MySecondStr { get { return str1; } } } public class Derived: Base { } What I need is whil...more >>

Hi, How do I make sure that any character that is typed into my RichEditBox will be appanded to the Text? (I'm using the RichEdit as a console window. I'd like to allow the user selecting any part of the Text he likes, but when typing new chars, always add them on a new last line (-at the end...more >>

hy, i m looking for define a method alias in c# RTrim and LTrim doesnt exists... and we need to use TrimStart TrimEnd so.... how define a alias public string RTrim = public string TrimStart ? ...more >>

When I was working with vs 2003 I was used to do thinks like this: ArrayList a = new ArrayList(); Doc d = new Doc(); d.field = "value"; a.Add(d); .... ((Doc)a[0]).field = "other value"; And it works very well. But now, in vs2005 it doesn't work and I don't know why. How can I make ...more >>

Hi, Can some one tell the criteria I can used to decide use of Interlocked.Increment() vs volatile , which is better? Thanks a lot! Ryan ...more >>

I am very new at .Net. I have a small project where I need to manipulate the contents of a web page. I have a form with a web browser control (webBrowser1) on it. Within the webBrowser1_DocumentCompleted method I have the following code. mshtml.HTMLDocument oDoc = new HTMLDocumentClass(); ...more >>

hi, I'd like to know how does the rownumber - getrow() if copy rows to the datawindows itself, what's there new row numbers. for example, if i have dw have 10 rows, if copy rows 3-5 and insert the 3 rows before row 9, what are the new copied row number? ...more >>

Hi, all When we click or select Print in IE, a print windows pop-up, is there anyway to capture this message and get the information of the print window (i.e. pages ,paper,defualt printer,...) and i can control the printing job continue or cancel it. thanks a lot ...more >>

I have a char[] that i convert to a string as follows m_tHeader.m_sshortname is defined as char[8]; string result = new string(m_tHeader.m_sshortname); The problem is that any '\0' chars in the array remain in the string and it's not terminated properly. Is there a nice way to trim these...more >>

Dear all, I have search for this topic and found article on how to use ASP.NET MemberShip provider instead. Is it the way .net 2.0 expected us to do? If it really safe to develop win app by using some web library? Looking forward your comments. kids...more >>

GoodMorning, I'm an italian developer, so, first of all, excuse me for my poor and incorrect english. I am writing here hoping to find some advice for a procedure that a like to create: I would like to create a software where all services available (database view, database backup, etc...) ar...more >>