I need to create a ListBox that looks a lot like the VS 2003 IDE properties window. I'd like text in the left column and be able to put controls (combobox, button, etc.) on the right side. Does anyone have an example of how this can be done? I do not wish to buy any third party tools to do ...more >>

Suppose I have object O with an event E that are defined in an assembly M that I am referencing in my code via reflection. M also defines object A which is an argument to E. At compile-time, how can I write a function that meets the signature for event E, when the compiler doesn't know about...more >>

Ok, I'm still a little confused about how to use the command line with the C# compiler that came with the SDK. I get a message saying the command isn't recognized, so I guess I'm in the wrong directory, but how do I find the right one? Thanks....more >>

I seem to be having a problem accessing networks shares. For example, I try the following code: File.Exists(@"\\SERVER\share"); always returns false! Or even if I map the drive File.Exists(@"Z:\") that will always return false as well. I can't seem to find too much information on this...more >>

Hi My program is a C# Windows application and I am using the following code to open an IE window: Process p = new Process(); p.StartInfo.FileName = "iexplore.exe"; p.StartInfo.WindowStyle = ProcessWindowStyle.Maximized; p.StartInfo.Arguments = "www.google.com" p.Start(); I would ...more >>

Hi, I have two panels on a C# WinForm contains set of buttons with shortcut (eg. Alt+K) on each Panel. Now when the user is on one panel, the shortcuts of other panel buttons are not functioning. Same way when we place a UserControl on one of the panel. Also, when the user is in a textbo...more >>

when i open a form in my mdi it goes well the firstime, but the secondtime i get an error: overflow or underflow in arithetic operation the debugger marks the font settings of a label. plz help me thanks Maarten ...more >>

How do you pause and resume some work without using Thread.Suspend and Thread.Resume since they are deprecated in .NET 2.0? ...more >>

Hi I occassionally get the error: The requested lookup key was not found in any active activation context when I try to use Process.Start Having done a search for this, it seems others have had the problem also, but I have yet to find a solution or workaround. Does anyone ...more >>

Hi I'm using a third party software which captures image from a webcam and saves it to local harddisk. It also comes with a function to send the image file via HTTP encoded with multipart/form-data. To integrate this function with ASP and PHP is no problem. I think it's also possible to bin...more >>

Hi all, I' facing a problem here that i am stucked with since i started with.net in vb6.0 i used for example Form1.txtName.text = "test" in vb.net i used DirectCast(Me.MdiParent, Form1).txtName.text = "test" and in C# i use ? i have a s...more >>

Is there any way to determine the dimensions of an image using the image's URL? ie load image based on URL, and then get dimensions? or perhaps better method?...more >>

My table name is projectDetails. Primary keys : AirportID,ProjectId,PhaseID,SequenceID Fields : Name I am trying to find a specific row and update the value of that row by the following command. DataSet1.ProjectDetailsRow r = dataSet11.ProjectDetails.FindByAirportIDProjectIDSequenceIDPha...more >>

I'm asking for ideas how to compare XML files. The files are schema-based "Test Logs". They will be generated by several different machines, and the longer files could be 1000 lines. Some differences are ok: <computer>SPITFIRE</computer> vs <computer>ODIN</computer> However most...more >>

Hi, I will use an example to do a simplified description of my problem, please don't laugh. I just "believe" I would have to use either interface or abstract classes, but I've not ever write an interface, though I know the basis of interfaces. So, let's say I have a class "RoboDriver", ...more >>

Hi I'm using a TCPClient to connect to a remote server, and I get messages from this server using the associated NetworkStream. As soon as I'm connected to the server, I use this code to read data : while (stream.DataAvailable) { // there is data, read them int numberOfBytesRead = stream.Read...more >>

I have a byte array that contains 8-bit ascii characters. I'm not particular about the codepage used to display them, but I have to preserve the position in the string with something and be able to back to the original byte implementation. For example, this doesn't work: // Bytes for .0...more >>

how do I get the path to the Program Files folder? ...more >>

Hi I am developing win32 application and I am calling function from extern DLL for example something like this 1) import function [DllImport("extern.dll")] public static extern int translate(int num, string[] arr); this function is written in C++ 2) then I in button_on_click pr...more >>

I want to put my console application to wait some time (for example 10 seconds) How do you do that ? Also, how does "Press any key to continue" code look like in C# ? If it helps, I can post here code example in Python Thanks in advance ...more >>

What I want to be able to do: A textbox is available that the user can enter information into. Specifically (for the purposes of this post), the user is asked to enter a number, and that number has an upper limit. I want to do validation on what the user enters as they type it in. I set up...more >>

Hello I have to add some more functionality in the current RichTextControl. Like MS Word i want to draw tables. and insert header and footer Can any body guide me ..i will be very thankfull to you . Kind Regards Malik ASIF ...more >>

Hi! Has anyone been able to use LSA functions to grant or remove privileges to/from users? I'm trying to find a way to programmatically set the "Deny logon through Terminal Services" privilege for certain users. If someone has a small example of how to use these functions from C# it would b...more >>

Hello I am having a bit of a problem. I want to search through a block of text separated by paragraphs. I would like to search through a line in a paragraph, move to the next line, and be able to return and make changes (like replacing a character or something) to the previous line. Any ...more >>

Hello I'm trying to do basic drag and drop from DataGrid control. The problem is that after I start DoDragDrop, items in DataGrid will become unselected. I wish them to remian selected. I hav such code: private void dataGrid_MouseDown(object sender, System.Windows.Forms.MouseEventArgs...more >>

Hi all, Upon trying to run a storedprocedure I get the error: Procedure or function mystoredprocedure has too many arguments specified. I checked out this site: http://support.microsoft.com/kb/827366 and did as it says specifying the type and size but it didn't make any difference I...more >>

hi all, I have a usercontrol with a checked listbox this usercontrol is placed on a form1 is there a way to get the checked items of the checkedlisbox in the usercontrol with a command from form1? i beleave i have to do this with "get" and "set in a class i've never worked with clas...more >>

Hi there, Something like this in C++ String sTmp; for (int i = 5; i <=15; i++) { sTmp.format("%2s", i) } would print 5 6 7 8 9 10 11 12 12 14 15 I should imitate the same in Csharp. ( Notice the space before the numbers 5 through 9). Is there a way to do th...more >>

How can I prevent using right mouse click ? Hrcko ...more >>

I have been messing around with data binding on Windows Forms, and I'm having a problem with the Property of a Collection (myCollection.Count) getting out of synch with label it's bound to. (My real problem is binding to a Property of a Collection, and not just the simpler case of the .Count p...more >>

I would like to create a website content manager. where the user just types in what she wants and than upload it to the page or make the change on the page than upload it. Take a look here http://www.rb3webdesign.com/y/form.htm ...more >>

How do I write the C# equivalent of the following VC6 methods? They will be exposed on a COM interface and used by VC6, VB6, and .NET apps. int SetPolygon(SAFEARRAY(double)points); int SetRectangle(SAFEARRAY(double)rects_info); int SetManyPolygons(SAFEARRAY(SAFEARRAY(double))points); Each...more >>

Hi Everybody, I'm working with the MemoryStream and I'm having problems with the ReadBytes method. When I use it, this method never returns bytes!!!! MemoryStream sw = new MemoryStream(); sw.Write(System.Text.UnicodeEncoding.Unicode.GetBytes("Testing"),0,6); System.Text.StringBuilder sb = new...more >>

Hey I would like to write a database class. Let's say it would work like this: datareader GetDataReader(string sqlquery); This would be static, so I could do this: datareader dr = myclass.GetDataReader("SELECT * FROM table); But in this function I would have an open connection how to close it...more >>

I need to inspect the current AppDomain for an object that implements a certain interface and get a property from the object. I know how to find out what class implements my interface but Reflection only lets me instantiate a new object. I want to get the property value from the already runnin...more >>

foreach (TextBox tb in this.Controls) MessageBox.Show(tb.Name); //Error Occur for non-textBox, i.e. Button Thank ...more >>

hi all, i want to fill a datagrid with some variables. i don't want it to connect with a database. can someone please give me some code to make this work. i think i have to make a dataset first then a data table and then fill this with datarows but how do i do this 3 steps i've been l...more >>

I have a DLL that relies on an XML file (that's in the same folder as the DLL) to read some startup information. When I test my DLL, it seems like NUnit actually copies the DLL into some temp folder (where my XML file obviously doesn't exist) and executes it there. Obviously the test fails...more >>

(Type your message here) I am writing an application that does lot of read/write's with= computer's serial port=2E The application as a whole is working= fine=2E Current Approach: I have a Timer that checks once every milli= second to see if there is any data avaialable to read at the= se...more >>

Dear developers, i hav face a big problem on connect my web services to my DB. i m using MS SQL Server 2000 to build the web services.. but i cannot invoke the input into the database and "HTTP 500 - Internal server error" on the IE. After i refresh, a source error occur "An unhandled exceptio...more >>

Dear all, When C# 2005 become production. Can I still use C# 2005 with SQL 2000 or I have to upgrade sql server as well? Cheers, Kids ...more >>

I have a multidimensional array defined as private double[,] myArray = new double[ 2, 1024]; The first column of the array contains X values, the other contains Y values I have a charting function defined as Add(Array XValues, Array YValues) How do I call the Add function, passing my array co...more >>

This seems incredibale to me but I've done some testing and it appears I can't pass in a long and than an int to a function. The int is not passed in correctly. [DllImport("ravenCore.dll")] extern static int rvCore_bl_get_schedule(long driverNum, int nList); When I call rvCore_bl_get_schedu...more >>

Hi, I've developed a couple of Windows Forms controls. To extend their flexibility, in run-time, I should be able to define/add new properties for those controls. I know that Reflection.Emit namespace is for that purpose. I have searched for possible examples about this and only found th...more >>

I keep getting the error below. ---------------- An unhandled exception of type 'System.NullReferenceException' occurred in Unknown Module. Additional information: Object reference not set to an instance of an object. ---------------- How do I load within the IDE debug symbols for the C# DL...more >>

I keep getting the error "Object reference not set to an instance of an object." The unhandled exception is a System.NullReferenceException. It is occurring in an "unknown module". How do I load within the IDE debug symbols for system.dll, drawing.dll, forms.dll to trace this error? -- S...more >>

Is there any effective way in .NET 2003 to create a template project which will have essencially the same classes and interfaces for each project? ...more >>

hi all is there any managed component out there to send out email through the domino email server?? Kevin ...more >>

I'm designing a C# object that must be usable from VC6 and VB6, as well as ..NET. How do I create the following method in C# so that VC6 and VB6 can pass in readonly recordsets? InputFARS(_RecordsetPtr *FARS); And then how do I traverse the recordset once in C#? [I'm very new to C#.]...more >>

I need something like java.util.Properties class... I want to store properties in a text file and to get at runtime. Example in java: text file ------ propertieName1=propertieValue1 propertieName2=propertieValue2 propertieName3=propertieValue3 ------ So, using Properties class I can g...more >>

Hi, I have a picture box with circles and rectangles, and I wana save all the images into a jpg file, i tried pictureBox1.Image.Save(@"c:\1.jpg"); but I got and error "System.NullReferenceException: Object reference not set to an instance of an object." Can anyone help? Thanks... -- ...more >>

Hi guys... i'm creating a crystal report in C#.NET. When I select the -->OLE DB [ADO] next -->Microsoft OLE DB Provider for SQL Server NEXT -->server = localhost and database = pubs FINISH -->ERROR : Logon failed Details: ADO Error Code Source: Microsof...more >>

How is it possible to display images in a DataGrid column? Thanks...more >>

I am in the process of porting a program from DOS to VB.NET. I was given the direction of recreating the feel and functionality of the menu system from DOS. The system will not have access to a mouse so it will (read must) all be done through Arrow/Enter keys. The way I'm planning to attack...more >>

Hi, >From the sample xml, I am trying to select a book and then select the author of the select book. In the example code first SelectSingleNode selects a book. Second SelectSingleNode on the book node should return the author of the selected book (???). But I am getting the first author in...more >>

Hi, I have this constructor: public CExcelDatabase(string host, string user, string password, string database, bool promptCredentials, int findExcelInstance, bool readOnly) { //Some code comes here } Then I wrote an override like this: public CE...more >>

How do you set up a MDI interface so that one of the MDI forms can be dragged outside of the parent form. For example, in Visual Studio, you can do this with some of the windows. Is this MDI? Or how do you that in C#.net?...more >>

Hi guys, May I know what is the code for linking the windows form in MainMenu? For example, in my MainMenu I have Report...so when I click the Report in MainMenu, it will go to the Report form....that's all.. Thanks in advance.....more >>

hi all! i encountered an error in instantiating windowsidentity passing the upn (user principal name). the error i encountered was "Unable to Logon". hope you guys can help me. do you think i still need to configure something in our domain controller? thanks in advance mich -- Me...more >>

Hi! I'm hoping someone can help me come up with a 'best possible solution' for the following problem: I'm trying to design an addressbook, i.e a storage for adresses. I would like my adresses to have a random number of fields, all of which are strings. Futhermore every address can belong to...more >>

Hi How would I go about installing a font file on WinXP? I have tried this and it won't get installed properly, private void installFont() { File.Copy( Application.StartupPath+"\\Lucon1.ttf", this.fontDir+"\\Lucon1.ttf", true ); key.SetValue( "Lucida Console ANSI TrueType)", "L...more >>

Hi All, I don't understand very well this part of MSDN: "Derived classes that override GetHashCode must also override Equals to guarantee that two objects considered equal have the same hash code; otherwise, Hashtable might not work correctly." Does any one know, why we must also override Eq...more >>

Hello, I am developing an asp.net website. In this I am using a web form say' Web form1.aspx' which has two button controls say 'button1' and 'button2'. When I am click 'button1' it displays a text 'Hi'. When I click the other button 'button2', it redirects to different page say' Webform2...more >>

hi, In our application i have to bind a tree view control in datagrid cell . but i am not getting any way to do this ..if any body can give solution!!! *** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET...get rewarded for it!...more >>

Hi all. I'm messing a bit with PrivateFontCollection. Embedding a ttf-font and streaming it into PrivateFontCollection using AddMemoryFont works like a charm. Changing the Font property on the WinForm controls works without problems on Label, CheckBox and Buttons. But surprisingly not...more >>

Hey guys any info on this would be great im a total noob when it comes to compression. What i need to do is take a bunch of files, either from the HDD or another source and create a .ISO. I would prefer to have it a Windows Application as opposed to a Console Application but baggers can't be ...more >>

Dear developers, i hav face a big problem on connect my web services to my DB. i m using MS SQL Server 2000 to build the web services.. but i cannot invoke the input into the database and "HTTP 500 - Internal server error" on the IE. I hav try the same thing on newly created ASP.NET Web Appl...more >>

Hello, I want to run in a loop untill I find a closing tag : for example I want to read the xml file untill I see </file> tag. Which function in c# determines that? Thank you very much! *** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET...get rew...more >>

Dear developer, I'm developing a web service with VS .NET and using C#. And part of the webservice is to get data from database (by using SELECT), however, the result from the sql query i cannot parse it to string, how can i get the result from the SqlCommand..? dataset or datareader..?. pl...more >>

Hi, Once I wrote a singlethreaded program containing a somewhat large tree structured set of objects. A treeview was assigned this structure and it was possible to drag and drop objects - i.e. reorganize the tree structure. Each object, tagged to a tree node, had a ref to its own userform, ...more >>

Hi all I give you here some example code how to make it possible to use the type mxArray (from matlab) in c and c++. mxArray is defined in matlab.h and matlab.hpp. To use mxArray in c or c++ you need to include this h-file..and maybe some libraries also. My question is: How can I use mxAr...more >>