I wanted if posible set to control tooltipe but my control not text or pop up window like tooltyp with user control . if exists eny examples . I wil read thenks ...more >>

Hi I need to create this proces X starts, if there is no object AA (where is stored Data) I create A Y starts, it tryes to retrieve AA to obtain Dat When Y or X stops, AA is still alive (because there is always 1 object who use AA X and Y can be switched (Y can be started before X I don't ...more >>

Hi I have started a new asp.Net application. I have places some components on the form. but when I run the application i get the following error. Error while trying to run project: unable to start debugging on the web server. The server does not support debugging of ASP.Net or ATL Server applicat...more >>

My class has a member variable declared as: string address; Here is a method of my class: /// <remarks> /// This is run in a seperate thread. /// </remarks> void DoListen() { 1: listener = new TcpListener(IPAddress.Parse(address), port); 2: listener.St...more >>

Hello. I am trying to find how I can call the method below. http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfSystemWindowsFormsAccessibleObjectClassIAccessibleget_accNameTopic.asp I cannot call this method by simply creating the AccessibleObject object. If I cr...more >>

I save date time into my XML files like this: MesObj.theTime=System.DateTime.Now; "5/4/2004 8:50:30 AM" BUT that string is NOT recognizable as a valid dateTime when the data is read back from file ( i.e. schema strong data type dateTime It seems to follow this test protocal : DateTime transa...more >>

Hi I've made this small routine that performs a case insensitive String.IndexOf(). It is badly coded, but still it is 30% faster than the "ToUpper" equivalent. Perhaps someone can give me some more tips. I'm pretty new on C#. It is only my second day. I think major performance is gained ...more >>

Hi all Please Convert the VB.Net to C# .NET Sub CustomPager(ByVal STCPagerGrid As Object) Dim intCtr As Integer Static intLastItem As Integer Static intCount As Integer Static intTotalPage, lintCurrentPage As Integer For intCt...more >>

I am trying to create a custom section and section handler in my config file. The custom section should be something like; <appSecurity> <method name = "Protect the Ice Cream"> <allow group = "admin"/> <allow group = "ice cream eaters"/> <deny group= "weightwa...more >>

I have a form. The form owns a listview control and an object that is acting as a remoting server. I'd like to display information as it is received by the server in the listview control that is owned by the server object's owning form. I know how I'd do this in VC++6 and MFC but I'm trying very ...more >>

why can't I find TreeView control in Toolbox?where is this useful control? ...more >>

This is a design / inheritance qus. I have class Task. This is a base class for some specific tasks Say WorkOrderTask : Task TimeSheetTask : Task Now Task has a function GetDetails() which gets all info about task. This makes a database call. I override this in the derived class. For...more >>

Hi Any thoughtfull insight at to whether a difference exists between the two functions mentioned above? I am just wondering when to use the one over the other...?? Thanks! /Claus ...more >>

Manoman, what a headache, I am trying to run some code in a separate Application Domain (in C#) I need to load an assembly (.DLL) and run it in a separate memory area (Appdomain) as I have a service that calls some rather unreliable code. If this code fails, I want it cleaned up as extensi...more >>

greetings how can i check if a treeview contains a treenode with a specified text? i'm trying with the Nodes.Contains() method but doesn't work. Any ideas? Thanks Almeida...more >>

Hi, how can I lead characters in C# into a string? In Visual Basic I do that by this way: Dim myString as String myString = String(50," ") How can I do this in C#????? Thanks, Pedro Henrique ...more >>

How can I convert string to int? ...more >>

Hi all and thanks again in advance, What is the best way of defining global constants in a C# application? (A windows application with no windows forms - basically a set of classes). Would it be a wise idea to create a clsCommonApp and let all other classes to be derived from that class? and d...more >>

I've written a read-only application, reads from tab delimited text files. I want to be able to stick some sort of identification in the text file, so that the app can determine if a user has edited the text data, or, has prepared data of their own that we do not want running inside our app. T...more >>

I want to create a class that inherits from Menu and whose constructor calls the parameterless Menu constructor. Why does this code produce CS1501 ("No overload for 'Menu' takes '0' arguments")? How can I correct it? public class DerivedMenu : System.Windows.Forms.Menu { public Derived...more >>

I have a couple of class libraries wich I built about a year ago. I want to add it no other project, but I want to change their namespaces without recompliation ('cos I'm not sure that I have all nessesery libraries). Is it possible anyhow change namespace of compiled .NET DLL ? TNX ...more >>

Hi, We have a C# app that uis running as a service. It uses a third party activeX dll that we us to capture events. Because it is an activeX dll, we have to create our own message pump on a thread (I Quite simple call application.run() on a new thread just after creatign eh activeX component).....more >>

All - I want to be able to set one generic variable to the instance of another... So lets say I have an object named objFoo that is initialized as a generic object of type Object. Now I get returned to me a TreeView Node object called objNode. How do I set my generic objFoo to objNode? ob...more >>

Hello. How can I load xml inti XmlDocument from string not from file? ...more >>

Hi all: I want to write an iterator class for GHashTable which belongs to GNU glib[ c library ] .Access function of GHashTable now only support internal iterator and define struct _GHashNode { gpointer key; gpointer value; GHashNode *next; }; and struct _GHashTable { gi...more >>

Please tell me why this: static void Main(string[] args) { Bid bid1 = new Bid(23,10.0F,3,0,DateTime.Now); BinaryFormatter formatter = new BinaryFormatter(); Stream depot = new MemoryStream(); formatter.Serialize(depot, bid1); Console.WriteLi...more >>

In my ASP HTML code I have: <a href="javascript:popupWin=window.open('Start.asp','StartFromBeg','resizable' );location.reload();">Click here to start.</a> How to acomplish the same (creation of the new browser instance) inside C# code-behind LinkButton1_Click(object sender, System.EventArg...more >>

in VB6.0, it is easy to launch an external executable by shell command. How to do it in C# and VB.NET? Thanks Keith...more >>

When getting input from a user in a text box, how can you test to see that they entered a numeric set of charactyers ( 0 to .....) ...more >>

How do I make 3 text boxes into one? txtBox1 txtBox2 txtBox3 = txtBox1txtBox2txtBox3 ...more >>

Please forgive my ignorance as I'm still new to developing w/C# (and in windows in general). So if I use the wrong terms, please bear with me. I'm using VS.NET and defining the events have been really simple. Just double-click on the event and the definition for that event (along with the me...more >>

Why is the third line of code in the loop take so long? W/o that line, the execution (35,000 loops) runs in 3 secs. With the line, it goes up to over 5 mins. dataGrid_auditAddress.DataSource = null; for(int i=0;i<table_rowNums.Rows.Count; i++) { iRowNum = Convert.ToInt32(table_rowNums.Ro...more >>

Hi! When I create a new form programatically, I can save its handle in a collection of some type Later, I need to find that form based on a handle I saved and call one of its functions. The newly create form can be a child of an MDI form but it very well may not be, so I can not use MDIChildren ...more >>

I have a string version of a sid (ex...S-20-220) I need to be able to take this sid and transfer it over to a name. My question is how do I do this. I know that in order to search with System.DirectoryServices.DirectorySearcher I need to have the binary version of the SID. I've tried to use C...more >>

I would like to insert some strings in a multiline TextBox. At the time of inserting the TextBox already contains some strings each in a separate line. The new lines should be inserted somewhere in the middle of the existing lines moving some line to higher indices of the Lines property. What ...more >>

How can I replicate the process of clicking on a column header in order to sort by that column? I tried getting the grid datasource, converting it to a view, sorting, and then attaching it to the grid, but it's not the same thing. And the process that modifies the underlying table of the grid is ...more >>

Hi, I am thinking to use C# and MSCOMM in MS VS.net to support GUI and serial port communication. Is this possible? I know that VB and C++ can. Thanks. -Dale...more >>

I have an application with MDI windows. The following code generates an error on some tables on "ad.Fill(ds);" if the table has data and needs to be cleared the first time. The second time the table is cleared there is no error. This problem only occurs if the MDI window is maximized and does ...more >>

Hi, I posted this twice but didn't get any response Can somebody please help me out of this situation Unsolved problem ... I'm new to C# and having a problem with interaction between a (legacy) C++ dll and functions in my C# module. I'm using a third party C++ DLL, no source available (so, not ...more >>

Hello all, Is there a way to make chars in a line of text different colors? (maybe using escape sequences). I'm talking about say in the text "Test" making the T one color, and e another color and so on... Thanks Cheers :) ...more >>

I'm putting together a C# .Net forms project on win2k. The application requires some sort of horn sound. I've never implemented any audio in .Net, so I'm not sure how best to accomplish this. It's an application that works with a wireless barcode scanner, in a warehouse environment. The user c...more >>

For most of my variable names, I use Hungarian notation to determine between one and the other. But what names can I use for public and private variables? I was using prv_varName and pub_varName but that sounded really strange. I've seen variable names that begin with _varName. Is that another p...more >>

Hi, we are using COM server through interop, and would like to sign our assembly with strong name. But when building, we get the following error: "Assembly generation failed -- Referenced assembly 'Interop.MyComServer' does not have a strong name." How can is sign my COM server with strong ...more >>

I have made an application on a development machine and it works just fine, when I try to deploy it to production I am getting the following error 'OraOLEDB.Oracle.1' Provider Not Registered I can't seem to find any information on how to correct this problem. Anyone else have this issue? ...more >>

What is the best way of converting Null value in datatable numeric column to 0. THanks ...more >>

Hi all and thanks in advance, I am thinking of passing around a dataset as parameter to different methods through my code ...my question is what is a reasonable size for a dataset in order to avoid performance definiciencies? how many rows of data can a dataset have before it becomes too larg...more >>

I need to pass a parameter to a class while calling Showdialog method, is this possible? Thanks, Carmen ...more >>

Hi I'm trying to write a program that interacts with an interactive cli program, that is a program that does some processing but every now and then requires some user input. My problem is that when I redirect stdin and stdout of the program I launch, the program seems to run but I never get an...more >>

I was wondering what the thought behind the 'new' keyword was in C# when applied to a function? For Example : public class A { ... public virtual void Func() { // impl_A} .... } public class B : A { ... public override void Func() { // impl_B} .... } public class C : B { ... p...more >>

Hello How to execute (in code) standard "ConnectionString" window, used to create connectionString Regards ...more >>

Given a reference to an Assembly, is there any way to generically scan the assembly for embedded resource files ? ...more >>

H I want to make a project where one or more object could be shared between 2 applications For example : the first application create a connection to a web-service, this connection is stored in an object (through a service perhaps). A second application is launch and I want this application, use...more >>

I need to read the contents of a dropdown listbox up to a space and then eliminate everything to the right of the space(including the space). How do I do this Thanks Dave...more >>

Hi From the moment I have threaded a function that loads data from the db , I get the following error: An unhandled exception of type 'System.Runtime.InteropServices.InvalidComObjectException' occurred in system.data.dll Additional information: COM object that has been separated from its ...more >>

Hi In MFC, there was a class that implemented an html view, is there an equivalent class for the .net framework best regards Jesper....more >>

hi, i placed System.Windows.Forms.WebBrowser in my WinForm. When i tried loading word document, it opens the File Download window. My question is how can i avoid the File Download window from showing? My intented default action is to always open Open file, just like if i load image, ...more >>

Everyone, I am having a problem with perfromance and the drawing of strings on a panel control and I am hoping you all can help or at least provide me with some good reference material. Here is what I am doing: I am using C# 2003 and reading into a file in real-time and as I scroll a scroll...more >>

Unsolved problem ... I'm new to C# and having a problem with interaction between a (legacy) C++ dll and functions in my C# module. I'm using a third party C++ DLL, no source available (so, not possible to rebuilt it with Managed extensions) At a certain point in my C#-app I have to return the...more >>

Hi I have an ASp.net application using C#. I need to copy a file present on the web server machine to a remote machine on the network. Although this seems to be a trivial matter I am having difficulties copying the exe I am Trying string Source = @"c:\temp\test.exe" string Destination =...more >>

i use the filename as variable name such as... Image of btnADD Button is btnADD.gif....... splash logo Image of panel panLogo is panLogo... i wonder if i use like above...what kind of problem would occur? is it easy for hacker to debug my program? i want to know general problem would ...more >>

How can I start an application like word from a C# program Best regard Jesper,...more >>

Hi, I posted this in m.p.d.f.interop but did not get any sensible response. Maybe somebody will be able to point me to right direction here? Hi, I am having some issue with EnumDisplayDevices when called from C#. When I use CharSet.Ansi (note - no unicode) for DISPLAY_DEVICE structure, I ge...more >>