Hi, I have a component using DesignerVerbCollection. When one of the verbs is clicked in VS, I launch a WinForm... The structure of my component is this: Component.cs (component code and Designer code) frmOptions.cs (a properties form for component) ComponentLogic.cs (a single class ...more >>

Hi everyone, I have a simple timer which decreases the Opacity from 1.0 to 0.0 and back again. The problem I have is, when it changes from 1.0 to 0.99, the whole form flickers completely before the smooth fading out. It never does it from 0.0 to 0.1, only from 1.0 to 0.99. Anyone seen...more >>

Using VS.net 2003 (C#) Code: : #if DEBUG something #else something else #endif When I switch the build configuration to release, the code in the #if DEBUG path is still compiled (and executed) I have checked the "Conditional Compilation Constants" in the project properties s...more >>

Hi, My documetation is deficient on this. What is the easiest way to iteraterate over all the controls within a form control using the foreach statement. Thanx, Bill ...more >>

Hi I need to loop through the properties of an object and record the various values. I have some reflection code that does this nicely but any enumerated properties return the Text of the enumeration not the underlying value. The code is: FormElement _Element = new FormElement("Testing123")...more >>

If i create a textbox tb1, I can write to it as such: tb1.Text = "mytext"; I can make it visible: tb1.Visible = true; or invisible: tb1.Visible = false; Thanks to a posting here from a previous question, I can reference that control indirectly to set it visible: string st1;...more >>

SqlDataReader rdr = null; SQLConnection con = null; SqlCommand cmd = null; try { // Open connection to the database string ConnectionString = "server=localhost;database = CallBilling System"; con = new SqlConnection(ConnectionString); con.Open(); // Set up a command with t...more >>

When we copy files in MyComputer, there is a dialog with a ProcessBar and a Cancel button. Does C# provide something like this dialog? Thanks CYShao ...more >>

is it possible? if so - how would you do it? ...more >>

hi I'm using QueueUserWorkItem to execute a bunch of tasks using the thread pool. Once started, I would like to wait for all of them to finish, using something like WaitAll. Is there a way I can know when a thread pool workItem has finished executing ? (My only solution at this time is to use a...more >>

I'm trying to expose only a limited set of method calls from a C# program to someone using my dll. The entire application is written in C# and my first attempt has been to try and write a COM object/interface. However, since the COM object references parts I don't want exposed, in order to us...more >>

I need to set up an array in a struct for passing to a win32 api call . How do I do this please? ("Name" is actually a zero terminated ascii string, so a pointer to a better way to do this would also be appreciated) eg [StructLayout(LayoutKind.Sequential)] public struct Details { ...more >>

I have unmanaged C++ program that will load a managed C++ dll and then call a function in that dll. The managed C++ routine will call some C# routines. The unmanaged C++ main program will make these calls (to the managed C++ dll) many times, from many different threads. Each thread will do a L...more >>

Hi, I just wonder if anybody could give me a hint on this: I have a ComboBox component on the form and it has some very long sting items. When the combobox drops down, the list of items doesn't adjust it's width to the length of the items. Is there a way to do that, other than using third-pa...more >>

I require the functionality of an error lookup (storing the err number and a description) in some software which i am working on and wud use an array normally but i have a small problem in that the error codes are non sequential eg 0,5,27,28 are the first four error codes. I would like to be a...more >>

There must be something I'm missing, but is there an easy way to add a given string as the first element in a string[] after the string[] is created (from, say, a Directory.GetFiles function call)? Regards, David P. Donahue ddonahue@ccs.neu.edu...more >>

Hello NewsGroup, I have a MDIParent form with a docked left treeview control, a splitter control and a generic docked control on the right. Kind of looks like Windows Explorer, though it's functionality is quite different. I have a function where an MDIChild is activated, well attempted t...more >>

I need to translate this to c#. It's for a capturing screen shots on IE. http://cvs.sourceforge.net/viewcvs.py/*checkout*/iecapt/IECapt/IECapt/IECapt.cpp?rev=1.2 I don't know how to start. Should I use p/invoke? How I handler the WM messages? How do I create the hidden IE window? Is it pos...more >>

Hi, i get this error when i try to compile my code. But why, ...everything seems to be ok! When i try to get some files extension with this: "File Extension: " + Path.GetExtension(e.FullPath) + " created..."; , i get this error 'type' does not contain a definition for 'function...more >>

I have this simple xml file which wont ever get beyong 3 nodes deep. I need to get the value of the child node of any node with an id of '63'. So fir instance I would be returned 'False' from the example below. Ive attached an XML snippet and a cC# code snippet. The piece of code is not wor...more >>

Hi, Can we retrieve the target of a .lnk file through c# code. Can the application that is run by the .lnk file also be retrieved. thanks Manoj ...more >>

I trying to setup a time. The following code is in a function, Timer stateTimer = new Timer(ab(), null, 1000, 1000); I have included using System.Threading; at the begining of my code. When I try to compile I receive the error, 'Timer' is an ambiguous reference What is the problem?...more >>

I can not get the the .Management namespace into my program. I've installed (so I think) the WMI SDK as well has the core SDK. Am I missing something? Visual Studio does not find this namespace when I compile my code. Also, is WMI the best way to send an SNMP trap to a SNMP Management se...more >>

I want to create o program in C# that's monitor IIS server. Thank's a lot ! Maxim Iulian *** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET...get rewarded for it!...more >>

hi all, how do i set the width of a column in a datagrid.Please help.Thanks in advance. regards, hajash ...more >>

I'm in the process of writing an open-source plugin-enabled application. I know that you can define the API in several ways, and right now it is equipped as an Interface. The gist of the functionality, is when a timer expires, the app will notify the plugins that it's time for them to d...more >>

hi guys!! i saw recently a document explaining how to send ""events"" from a flash swf to a .net app using C#, now im interested in know if is possible to send "events" from my app .net using C# o VB or J# to the same flash movie without use a web server, flash remoting, orbe or aspx, php...more >>

Hi, I populate a DataSet in C# then do ds.WriteXmlSchema to create a schema file. I create the crystal report based on this schema. After the report is created, I save the report as a pdf file. The problem is that now my pdf or report has all records in the DataSet. What I want to do is c...more >>

Is there a way to set the colors of a disabled control? What I am getting on a disabled textbox is hard to read. ...more >>

Hi, Is there any way I can view all the objects in the managed heap. I want to know how many times a particular object has been loaded in to heap.( in debug mode ) Thanks probashi@hotmail.com ...more >>

I understand that C# does not generate dll's that can be called from other application development platforms. So now I have to find another way to write a client app that can be utilized within another environment and am thinking about COM. Can anyone point me to a tutorial or advise me on wher...more >>

I just worked through a VB.Net sample program that creates an rft document and then opens it in Word. The code that opens the document is: Dim sFileName As String sFileName = "Sample1.doc" Response.Write( "<META HTTP-EQUIV=""REFRESH"" Content=""0;URL=" & sFileName & """>") I cannot get ...more >>

Hi, I am running a separate thread in order to be able to poll devices on a MODBUS RTU network. I create a thread and look at the ThreadObj.IsAlive flag, and this work ok. I then might have to come back later to the thread an re run the task contained within it. When I come to re-run the...more >>

May i know how to write the code to display out the value that i get from the database into data grid...my prog works like this..when the user enter the customer id into the text box and press the button, the value in the text box will match the customer id in the table and display out the act...more >>

Hi All, I'm invoking Type.InvokeMember() on a COM class (via COMInterop) through a generalized interface. However, each specialized instance (of the COMInterop generic interface) requires slightly different arguments for which I dynamically create the object[] arguments and it all works nic...more >>

In C#, how do I replace using VB local static variable declarations to handle method reentrancy. Note, if you use a class-scope variable instead of a local one, then you run the risk of inadvertently changing the variable's value in another method that is performing the same technique. The ...more >>

I am trying to access an AD from asp.net, I am getting the 'famous' "The specified domain either does not exist or could not be contacted" exception with a HR = 0x08007054b the code (C# .Net) is as follows: DirectoryEntry rootEntry = new DirectoryEntry("LDAP://RootDSE"); string contextPath ...more >>

Hi all, What is the best way to create some plugin assemblies so that the main app will load them automaticaly from a particular folder in the filesystem. So if you would like to give the app an extra functionality you would copy an assembly to that specified folder and it would then be ...more >>

Hi First of all sorry for large post. I know its big, probably most won't get to the end, but I'm running out of options. I've searched web, I've found some demo project on www.codeproject.com but there is only basic info about it. :-( Could someone please translated it for me? I'm sitt...more >>

Hi, I'm using TcpClient for communication between two PC running a small piece of software. The protocol used has been designed internally and is HTTP similar (command line, headers, body). A typical response in this protocol would be: SMP/1.0 200 OK<crlf> User-Agent: foo<crlf> Vers...more >>

I need help with 2 keyboard/input questions 1. How do i caputre all keypress events for my application/form? 2. How do I determine which keyboard sent the keypress? What i'm doing is using a USB Barcode scanner, windows sees the scanner as a keyboard. When the scanner reads a barcode it dec...more >>

Hi, I am converting a byte array to string using System.Text.Encoding.UTF8.GetString() or Unicode.GetString(). Then the resulting text is converted back to binary, using the reverse function: System.Text.Encoding.UTF8.GetBytes() or Unicode.GetBytes. But the result does not match the original ...more >>

Hello! Have a problem. Just now I receive an error from VisualStudio that I'm unable to add a data set to my application. I tried to add a sataset - and I receive the error saying "Automatisationserver could not create object" Ae there any com object missing? - Lars ...more >>

I am trying to iterate through a datagrid using the following code: private void updateFCA(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e) { for (int i = 0; i < e.Item.Cells.Count - 1; i ++) { if (e.Item.Cells[3].Text == "FCA") { e.Item.Cells[3].Text...more >>

my prog works like this...i had created a summary report form where there is a text box, data grid and a button. when the user enter the customer id in the text box and press the button, the data grid will show the particulars about that customer id only....may i know how to pass the value fro...more >>

C:\Documents and Settings\Yeoh Cheng Lin\My Documents\Visual Studio Projects\CallBillingSystem\CallBillingSystem\SummaryReport.cs(334): The type or namespace name 'ConnectionState' could not be found (are you missing a using directive or an assembly reference?) may i know what does it means...more >>

I have a managed C++ method that wraps unmanaged code and creates a managed object holding data retrieved form an unmanged one. I want create an instance of this managed class in C#, pass it to this method and have it set the instance to hold the right data. >From what I've read it seems I sh...more >>

Hi, I'm trying to transfer the photos from my Canon EOS 20D to a folder on my hard-drive with a C# program (but the language doesn't matter). But the cam folder doesn't appear in the directory browser within my application, although it appears in the Windows explorer. I deduce that it is not ...more >>

C:\Documents and Settings\Yeoh Cheng Lin\My Documents\Visual Studio Projects\CallBillingSystem\CallBillingSystem\SummaryReport.cs(301): The type or namespace name 'SqlConnection' could not be found (are you missing a using directive or an assembly reference?) may i know what does it means? ...more >>

hello, I am using remoting in order to connect to a remote hosting server running under IIS. The client works fine if the server is running on local intranet but if the server is shifted to a different doamin machine the client throws System.Net.WebException giving message "The u...more >>

Hi, I have a form with 6 checkboxes. What is the best way to count how many checkboxes have been checked? Thanks...more >>

I am using the following code to iterate through a DataGrid to change the value in one of the columns: private void UpdateFCA() { for (int i = 0; i <= reportGrid.Items.Count; i++) { DataGridItem item = reportGrid.Items[i]; TextBox fcaText = (TextBox)item.FindControl("fca");...more >>

Hello everyone, Thank you in advance for your time and help. Mine is an asp.net/C# application. I have an aspx page(parent window) which has a link that launches a new ie window with another aspx page(child window). The child window has a button with some server side event code for bu...more >>

Hello, I am using java script to post data back to the server when a button is clicked. In my web form, when a button is clicked, a javascript executes which submits data back to the server by following statment document.WebForm1.submit( ); But when i click on the butt...more >>

The code below is what I am using to asynchronously get data from a PocketPC device. The data comes in fine in blocks of 1024 bytes but even when I send no data from the PocketPC constant blocks of 1024 with all values set to Null arrive. Other than examine a block of 1024 to see if the entire b...more >>

Can i add a embedded resource icon in my application in run time ? Rogerio...more >>

I'm using a StreamReader to read in several lines from an ASCII file. I'd like to know the StreamReader's "true" position-- that is, the number of bytes into the file that the StreamReader has read. I thought about using MyStreamReader.BaseStream.Position, but this always seems to return a ...more >>

Hi guys, May i know how to match the value in the text box with the table's attribute in SQL Server? For example, when the customer enter their customer id and press the button, I want to display out the rows of that customer and not the whole table. I had done the data binding in the text bo...more >>

Hello Why is there a memory leak when this code is executed. for(;;) { ManagementScope scope = new ManagementScope(); scope.Options.Username="username"; scope.Options.Password="password"; scope.Path.Path=@"\\pc\root\cimv2"; scope.Connect(); } There is no leak if...more >>

Hi there, I created a DataSet manually like this: DataSet myDataSet = new DataSet("NewDataSet"); DataTable tblUserData = new DataTable("tblUserData"); tblUserData.Columns.Add("User_Name", typeof(string)); myDataSet.Tables.Add(tblUserData); How can I add manually a value to the column "User...more >>

Hello, I am developing an asp.net website. I have a web fomr say' webform1.aspx' having two input button html controls. When I click on 'button1' a message appears. Following code is executed o client side button1_click( ) { document.webform1.submit( ); } and on server side the me...more >>

Is there a straightforward way of creating an excel/csv file from a datatable. I don't know where to start with this. thank you....more >>

Hi, In the constructor of a class, I am taking as a parameter the reference to a "bool", as in this code: ----------------------- public class TCP_synch_client { public string address =""; public int port =0; public TCP_synch_client(string address1...more >>

Hello,I am trying to retrieve a column from a dataset which will be in array as a collection of strings. I am doing something like that: ds = new DataSet(); Adapter1.Fill(ds); MessageBox.Show(ds.Tables["n"].Columns["p"].ToString()); but it's not working (it gives the :Object reference ...more >>

The following code: float someFloat = 0; for(int x = 1; x <= 10; x++) { someFloat += .1F; Console.WriteLine(someFloat.ToString()); } Returns: 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8000001 0.9000001 1 WHY, WHY, WHY, WHY, WHY, WHY, WHY, WHY, WHY, WHY, WHY!!! What happened to th...more >>

Where is the command for making a system beep (to indicate an error)?...more >>

Hi, I'm writing a program which is, and will continue to be, constantly extended with functionality that require information. Until now the source of this information has been found and modified using notepad in a txt file that was parsed into fields in objects. (This solution because this ...more >>

I'm currently running into a problem, and I have no idea what to make of it. I have a class with nested clases and static properties that I'm using to store configuration information using a custom configuration section. When my code accesses one of the static properties the static construc...more >>

Hi there, I get a string from a recordset, with is delemitered by the | character for the different values. The string looks like this: Peter|Pan|Donald|Duck Now I would like to each result seperately. strDetails = rs.GetString(ADODB.StringFormatEnum.adClipString ,1,"|",",",null)...more >>

Hi there=2E=2EI have a troublesome problem=2E I have a class, that is= processing a specific task=2E At any specific moment a custom= event is fired so that I could view the info generated in the= interface=2E Now, I need some sort of mechanism that would halt= the whole thing for 2 seconds ...more >>