I have a com dll interface: Public Function Hulian_Acount_all(ByVal vIndex As Variant, _ ByRef vDate As Variant, _ ByRef vCount As Variant, _ ByRef vMoney As Variant, _ ByRef vMyDetail As Varia...more >>

How do I hide and unhide Tabs in the TabControl at the runtime? Peter --=20 Thanks ------------------- czupet@wsinc.com...more >>

Hi All I have a couple of questions, I am not at a machine with VS.NETso that is why I am asking them here 1. When working with a dataset, how do I go to a specific record and update a field in a table in the dataset? I know you could probably run the updateCommand for the DataAdapter,...more >>

I am using asynch sockets and so I call BeginReceive and then in my callback function I have certain events that would cause me to want to throw an exception. The problem of course is that the callback function is executing in a separate thread from the main thread so when I throw the exceptio...more >>

after searching on amazon, i found no good books on threading in ..net/C#. does anyone know if any are in the works? I've seen lots of questionable threading code in our C# environment, and it'd be good to see a good, advanced book on .net threading. thanks....more >>

Hi, I'm actually in the process of rewriting J# script into C#, and I was wondering if there was a way to do it automatically? Thanks. SyP ...more >>

Hi All, I want to create a customized IE Toolbar using either C# or VB.NET. Is it possible? I've come across some samples which show how this can be achieved using Vc++ (and VC.NET). But can this be achieved using C# (or VB.NET) only. Thanking you in anticipation. ...more >>

Can I pass a method pass one of its out parameters to another method? C# is telling me I can't. Let's say I have two methods, FooManager and FooWorker. FooManager is part of a class that acts as a coordinator for several other classes. FooManager basically passes its parameters, including an o...more >>

Can anyone tell me what is the appropriate group for asking questions about Crystal Reports for Visual Studio? Thanks, -- Junkguy...more >>

How to do you add and subtract dates in C#, in VB there was a Date Class which provided AddDays.... I see a DateTime class in C#, but none of these methods...where be it?...more >>

ascii decimal binary 0 48 00110000 1 49 00110001 .... ... ... 9 57 00111001 My problem is: when i get a serial numbers,i wanna to remove 00 from left of each binary value and save them as following: before saving saved 00110000,00110001 110000110001...more >>

Hi All, I am writing a Win App in C# that has a data class for my mid business component. I call it to fetch data for me and return back a dataset to my Win app. So in order to read my dataset that's returned I need to open up a DataAdapter again and attach a Reader. If I want to acc...more >>

Hi, I've just begun to 'program', so I'm just a newbie. But I wondered if anyone could give me some guidelines to play sound-files in a windows application. I'd really appriciate it. Thanks... Stephen, Belgium p.s.:sorry for any English mistakes... ...more >>

A Microsoft partner has told us that with the next release of .Net VB will become the language of application developers and C# will only be used for "system" work, that C# will be left behind in the "application development domain". I hate to believe this and would like a counter to this arg...more >>

Does anyone know of a set of graphics libraries written in C#? My goal is to create a set of graphics images in memory then dump them to a file or network stream in any format. Unfortunately the System.Drawing classes all resolve down to calls in gdiplus.dll which are implemented nativel...more >>

Dear Group, I have the following code for vb.net *** Dim objFaxServer As New FAXCOMEXLib.FaxServer Dim collFaxIncomingJobs As FaxIncomingJobs Dim objFaxIncomingJob As FaxIncomingJob 'Error handling On Error GoTo Error_Handler 'Connect to the fax server objFaxServer.Connect("")...more >>

I'm inheriting from From, but my Show method requires a parameter, so I define an overloaded Show method: public void Show(Form Owner) Now I get intellisence for two methods: Control.Show() MyForm.Show(Form Owner) I need to hide Control.Show(). I tried hiding it... private new void Show(...more >>

I have a treeview in my ASP.NET c# application.when someone selects a node on the treeview How do I set the node name myNodeName = TreeView1.Nodes(TreeView1.SelectedNodeIndex).Text The above code only gave me the value of the parent Node Any and all help would be greatly appreciated!!!! ...more >>

I'm having a devil of a time getting the following to run and was wondering if someone could see why. Seems to be related to data type I'm sure, but new to .NET and C# so am in head banging mode. The connection is good. Am trying to run a Stored Procedure. Error that comes up is 'Additional in...more >>

Hello: In VB I was using InStr function to determice whether some string exists within another string. How would I do it in C#? For instance, I have a long string created by StringBuilder. I need to find out if this string contains the words "Not found". Is there a C# function for it? or pe...more >>

Hi All, I wanted to ask if someone can help me out in locating a ref on the internet for the preperation of MCSD.NET C# Windows Applications dev exam. I am planning to take it in the next few days, I have already completely read the Microsoft training kit, for this paper. I was hoping if ...more >>

I'm writing an application where the user interface has many tabs, and sets of tabs within each tab (customer requirement). Each subtab has a great number of it's own controls and functions. Rather than have one enormous C# source file, does anyone have a suggestion on how to setup an individual ...more >>

i found out that if i debug the web services that accessing a vb6 com (a dll file), other clients' request will be stalled until releasing from the debug mode. to me, the dll seems to be a queue then. but, my dll is already 1. set to Instancing to MultiUse 2. try with COM+ at win2k how to ...more >>

IS there a way to access a keydown event from the .net picturebox control. I need to display a picture and have the user press the page up/down key to go to the previous/next pic. I see mouse events but not keypress. If the PB does not have this, then is there a way to intercept a kepress fr...more >>

From my Windows app I would like to open a DOS-window (Process.Start ("cmd", "/k");) and then run a number of processes in that DOS-window. How can I arrange that these processes start in that DOS-window? -- Wim...more >>

I created a mock databse table caleld custifo. it has customer infformation like name, address etc. In visual studio.net, I created a form that would allow users to input the last name have all the related information of the customer come up. If they need to make any changes in the informa...more >>

Howdy, I am having trouble with the objectCategory=group member.Count attribute. I get one of three counts, a number between 1-999, no member (does not contain member property), or 0. Using LDIFDE as a comparison I get the same results. No members means just that, an empty group. Zero mea...more >>

Hi NewsGroup, I'm (not too) new to C#, I have built a Windows Common dialogs name space with these dialogs contained within. Got all the functionality from these dialogs that C# will let me do (and just a bit deeper). Having constructed highly customisable common dialogs in VB 6.0 a long w...more >>

Hi I need to produce GUID as the program is executing. Which namespace is dealing with that? Thanks ...more >>

Hi I have created a Windows installer project from the .net vs. When I add custom actions for the Uninstall event how can I tell it in what sequence to launch the custome action? Whats happening is that it removes the files and then tries to execute the custome action. Also how can I get the r...more >>

Hi I have a c# windows form and when the user click a button I need to open IE with a specified url and some arguments I need to pass with the url using the POST method so that the arguments won't show with the url address. How can I do this? Thanks ...more >>

How can i declare a definition with using (using a = b.c.d) and use it in all files of my project without rewrite it in every file of my project ? And if i want to permit the use of this alias to the user of my library ? In C++ i use the #define instruction in a .h file and i include it in every ...more >>

I want to determin if objectA is of the same type as objectB, or is inherrited from the same type. I hav tried something like Type objectAType = objectA.GetType(); if(objectB is objectAType) .... That does not work, because the "is" statement requires a class name and not a object of...more >>

I'm looking for a power grid control to use for some C#/Windows forms development. There are a LOT of grids out there and trying to analyzes them could turn into a long task. Some things I'm looking for; Grouping (TreeGrid capabilities) Outlook style group by Built in filtering a plus...more >>

Hi Windows forms are perfectly running from . Microsoft (R) Visual C# .NET Compiler version 7.00.9466 for Microsoft (R) .NET Framework version 1.0.3705 but i have problem compiling WinForms from console is that Winforms can be compiled from vs.net only Thanks...more >>

what're some good C# books to learn the language basics? tia ~sven...more >>

I want to be able to control the display of my base classes in intellisense, in the same manner as [EditorBrowsable(EditorBrowsableState.Never)] works for methods and property of the classes. Is this possible? Thanks michaelravan@yahoo.com...more >>

Does someone knows links to web-pages, or book contatining, information about the most important things to consider, while trying to make the .NET code perform faster. e.g. In my code I make big use of ArrayList and Hashtable, but my code would be only a little bit more complicated, if using n...more >>

This is fairly easy to reproduce, create a new exe project, add a second form Form2, on Form1 add a button and put code under the button to show form2 modally. Then in the activate event of form2 show a messagebox. Run the project and click the button then click the OK on the messagebox that pop...more >>

If I want to create a MessageBoxButton which says "Edit", how would I go about doing this? Thanks in advance for your assitance? ...more >>

This statement is legal C#: public const string day =3D "Sunday"; but this statement is not: public const string[] days =3D new string[] { "Sun", "Mon", "Tue" }; The C# Programmer's Reference specifies that 'the only valid values of a = constant declarator [involve] constant express...more >>

Hi All, I have written a win service MSMQListener. On the OnStart method I call a queue worker class which basically goes and invokes the delegate with the following signature OnStart() { QWorker q=new QWorker(); q.Run(); } class QWorker{ void Run() { this.msmq=new Mes...more >>

1. I have an image list defined in a control 2. I want to expose trough properties the image list in a manner to be able to change it from the container where the control is used. How do I do that? -- Horatiu Ripa ...more >>

Hi, I have problem create exchange 2000 mailbox using CDOEXM in my Web Service application. The error I got was "Catastrophic failure". Here is the code that I have: DirectoryEntry user = new DirectoryEntry("LDAP://fmsamrmc001.amrmc.minicorp.intel.com/"+strDN); user.Properties["mailNickN...more >>

Is there an event that is invoked when a user sorts a column in a Windows Forms DataGrid? I have context senstive icons that are enabled\disabled depending upon the selected item in the datagrid. When I sort the datagrid the selected item changes. I can not find the event that is fired ...more >>

Dear all I have an thread updating the GUI thread using the BeginInvoke mechanism. However, in one app where I use this mechanism, it works fine but in another it does not. The code looks like: public void OnDisplay(GUIEventArgs args) { object[] list = {args}; // We get here withou...more >>

I'm trying to pull a data file that has an image (jpeg) embedded in it. I can locate the bytes for the image, but when I try to write it to a file, the image ends up being corrupt! the kb/b size is the same as the original image, but the data itself isnt. I have the binary data in a byte a...more >>

How do I update the system time using the DateTime I have? Thanks....more >>

I made a post yesterday under the same title, and I think I finally fixed yesterday's problem by playing with the setup files. However, I am still having a problem with the web service that the application is using. Here is the error message I am receiving: Server Error in '/EmpRemoval' Appl...more >>

Hi I have a c# windows form and when the user clicks a button I would like it to open IE with a specific link. How can I do this? Thanks ...more >>

I assume that 2.0 will be rolled out with VS.NET 2004. Does anybody know if MS is planning to ship an STL package with it? ...more >>

I don't know who's monitoring these groups and sending the viruses (disguised as MS updates) to e-mail addresses of users on these groups...but I'm forwarding all the headers to the authorities... Suggest you stop now... ...more >>

Hi ALL, I want to display in a RichTextBox the Binary Large Objects data coming from database. If I have one record its not a problem I convert it to byte array and pass it on in a stream as a byte array and then call Loadfile method of RichTextBox and pass the stream. This works BUT IF I ...more >>

I was wondering on the breadth of optimization with .NET JIT compiler. Let's presume I have an assembly of static classes - mostly helper functions. Some of these functions may be very small (small enough that the optimizing compiler would inline them). If I have another assembly that refere...more >>

Can I invoke a IE from command line and pass url as an parameter...more >>

Hello... To make a color chooser (like in photoshop, for example), how its possible?? Do you have a clue? Liberty .. ...more >>

Hi, i have a form, and a button... My question is that, I would like that when the user press this button, show another form with 3 checkboxes and 2 buttons (accept and cancel). The user will choose for example 2 checkboxes and click in accept, and in my first form catch the value...more >>

I have an object hierarchy that's several layers deep, and I'm puzzling over how to access an object at any point in the hierarchy, solely by its key. The hierarchy is similar to an organizational chart, with a CEO at the top, his/her subordinates in the next layer, their subordinates in the la...more >>

When I use the command to retrieve the information, nothing comes back, what am I doing wrong? Here is my code... private string connString = System.Configuration.ConfigurationSettings.AppSettings["ConnectStr"]; I'm working on a WINDOWS application. I created a configuration file wit...more >>

Hello All, I am currently in the process of writing an application references a lot of data from user supplied csv files. However for completeness I need to show the end user the data in a neat and tidy format. Is there an easy way of binding a csv file to a datagrid? Any help on this ...more >>

I wonder if someone could help me. I've got a 2 Dimension Array that I'm working with and want to display the results from this array in a datagrid. I'm quite new to C# and seem unable to link the two together. So, the question is, how do I set up my datagrid to accept the array as the ...more >>

Hi. Anybody knows how could take all the messages in the forum to store in my computer? Thanks to all. Jander....more >>

How do I convert a decimal to string, in a way so that only 4 digits after the dot is present . E.G like in the below table: Value : writeln 3.234556 : 3.2346 (or maybe just 3.2345) 0.34 : 0.3400 0.112234 : 0.1122 Best Regards, Anders Both, Denmark. ...more >>

Hi, to all.. I have a method that creates a Random File And another method that open the notepad with this File I dont know, but first of all i call to the first method. after that i call to the second.. The program crash cause the file exist a little time after the execution of the s...more >>

Hi, How to read archived system eventlog file (*.evt) in C# ? Any code samples ? -Mike...more >>

hi to all, If to start a process i can use this way... System.Diagnostics.Process.Start() How could close a proccess in my machine? there isnt a method like End() Thanks in advance. Perico. ...more >>

Hi all, I am working on a mesaging system at the moment which currently uses at least two threads, one the main client interface, and the second (or more) providing a network/message listener. The project works and is happily providing the required functionality, but the users of the s...more >>

I have two assemblies with exactly the same name, but=20 which are different; one is on the local machine and the=20 other comes from a remote one. I want to deserialize an object which is of a type of the=20 remote assembly. How can I do this since my deserializer says "Type is not=20 resolve...more >>

Hi All, I'm a long time MFC programmer, but I do more UI than network programming. Is C# the way to go for non-networked windows desktop apps, is MFC still the way to go, or is something else brewing? Thanks, -Shelly ...more >>

How to draw anmation in window app? I mean... like how can I draw a dot in window at a point then moves to another point and we can see it moves. Please explain in detail....more >>

I have a thread that fills a collection with a large number of objects. This happens often and fast. I would like to find a way to check every once in a while the capacity of this collection and if it's at X capacity, to dump all the data in a temporary collection, so that the data can be...more >>