Hi All, I'm trying to access a web page from C# code. Since I'm behind a firewall/proxy, I creat a webproxy and NetworkCredential to access the web page. It works fine. In this way, I have to give the username and password for creating the NetworkCredential object. Is there anyway that...more >>

I do a programming to access a website, Using C# 's webrequest object,but when I access other webpage,the session is ended.How can I keep the session. Thanks a lot!...more >>

WARNING: This is an HTML post, for the sake of readability, if your = client can see HTML posts, do it, it doesn't contain any script or virus = :-) I can reformat a non-HTML post if you want me to (and if this doesn't = see correctly with non-HTML viewers) Ok, I'm fed up with this so I'll ex...more >>

In the interest of code re-use, I would like to place some code in a utility class to be used by other classes. The problem is that this code requires the following snippet: for(i=0; i < tbl.Rows.Count; i++) { myDataRow = tbl.Rows[i]; company.someNestedClass sc = n...more >>

General: - Using C# - Using notepad to program (NOT Visual Studio). I have a code-behind file name 'example1.cs'. I want to use an Assembly given to me for a project I'm working on. I have put the assembly named 'assembly1.dll' in the /bin directory. How do I import/load etc the assemb...more >>

I have found many Java to C#, byt no onoe C# to Java :( Gawel ...more >>

I wrote the following function to test a string for=20 characters from a to z and the "_" character : public static bool IsAlpha( char Value ) { Regex regExp =3D new Regex("^[a-zA-Z_]*$"); if (regExp.IsMatch( Value.ToString() )) { return true; } ...more >>

Hi, How to fix this problem: Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.InvalidCastException: Specified cast...more >>

Hi, I have a Datagrid with 4 Columns, 4 Rows. The first column value is '1', '2', '3', '1'. i) Is it possible to change the whole Row forecolour into Blue if the first column's value is '1' ? Pls advise and thanks in advance. pcPirate ...more >>

Why does ADO.NET use "exec sp_reset_connection" before executing every statement? And what does sp_reset_connection do? ...more >>

I've installed the DirectX 9.0 SDK, but the samples won't run because the Microsoft.DirectX namespace cannot be found. It isn't in the References dialogue, either. What DLLs do I need to add to make the samples run? The documentation doesn't seem to mention any of this. P. -- www.CL4.o...more >>

Hi, My sql join two table, how to call the fill method? thanks. string sqlStr = "select * from table1, table2"; SqlDataAdapter myCommand = new SqlDataAdapter(sqlStr, myConnection);DataSet ds = new DataSet(); myCommand.Fill(ds, ?); ...more >>

Hi, I spawns a number of background threads while creating a windows forms application. I noticed that when I quit the application or calling Application.Exit, it hasn't really stop. Is there a quick way to say "terminate all threads and quit"? thanks, /m ...more >>

I have webservice with over 400 webmethods. The problem is when I start the client application. The csc.exe starts and compiles a 4 MB C# file in the Temp folder with the proxy class. Is there any way to disable this. Thanks. ...more >>

Hi,all: I want to create a web site in IIS from within my setup project,but I don't know how can I accomplish this?I can create a virtual directory but my manager asked me to create web site,not virtual directory!Anyone have any ideas?Thanks in advance!! ...more >>

Good day! :O) I have the following code : //*** using System; using System.Windows.Forms; <snip> private void button1_Click(object sender, System.EventArgs e) { Type type = Type.GetType("System.Windows.Forms.TextBox"); if (type != null) { MessageBox.Show(type.F...more >>

I am currentl writting an c# application but I need a few pointers. I want to allow a user to drag an image from the windows desktop to my application. I know this is possible with c++ but can this be done in c#. I have looked into AllowDrop and dragevents etc but this only allows the applicat...more >>

in java I could write a synchronized method like this public synchronized MyMethod() { blablabla } how (and if) can I do this in C#? -- "Zeglarstwo jest koniecznoscia zycie nia nie jest" www.saper.infra.pl/ Saper(ek) ...more >>

I was viewing some strange behaviour in c# so I tried a comparison in vb.net A simple 1 line console application written in both c# and vb.net (One line meaning one line in the main function). Console.WriteLine(100L) It appears vb.net declares a 8 byte long and stores the value into i...more >>

I am seeing a very strange problem as follows... I have a loop where a fair amount of processing is going on and near the top of the loop I access a class that has only static helper functions to perform some calculations. After some number of iterations, randomly, I'll get an uncaught Null...more >>

I have made a simple application in C# that prints a txt file using CrystalReport. On my PC everything works fine but when I run my app on another PC it collapses. I get message: "Cannot find KeycodeV2.dll, or invalid keycode." What is keycode? I created setup program to install my app on anothe...more >>

I am evaluating the infragistice ultrawingrid. Does anyone know how I can color a row based upon a column value?...more >>

Hi: Here's what I am trying to do, pass a string array between two pages using Server.Transfer method: Sending page I do this: private string[] arrFCInfo=new String[5]; //Property - read only public public object arrayFC { get { return arrFCInfo; } } In the receiving page, I want...more >>

I have the sudden need to split a text that may have any of the following tokens : Words with quotes or double quotes. Words with no quotes at all. Numbers with and without decimal points, no commas allowed, but may contain parenthesis which I would like to keep apart to drop later. They m...more >>

Hi all, I am using a sort method from Array class to order in ascending way. What can I do to descending way using same sort method? Thanks Durand ...more >>

I have a datagrid that displays data in a web page. Is it possible to create a print() function that print out the datagrid or somekind of report created base on the datagrid? I know if it is a window form, it can be done. But this is on the web page. Thanks Holly ...more >>

Hello. Inform, please, how to find the programs on building the 3D-graphics of function z=f (x, y) and only for Visual Studio .NET: Visual C# .NET, Visual Basic .NET or Visual C++ .NET and GDI+ (without use DirectX, OpenGL and similar packages)? Beforehand many thanks for your answer. Best regar...more >>

I have 2 forms and one class: FormA has a TreeView and a Menu. FormB has a Toolbar and a Textbox. Class has a property Name and a method Add. When FormA loads I click on my menu and select New, at this point FormB loads and I type something in the textbox which calls my class and assigns ...more >>

i have a class that contains a method (not static) that is called on an event by child threads of the class. i assume it is not threadsafe. is there an attribute that i can set on the method that would cause the runtime to handle the method in a thread safe way? or do i need to put in my own loc...more >>

C# verses VB.Net Which Way to go. I am sure this issues has come up before. Please direct me to any good articles that cover this issue. Ideally some neutral assessment. Thanks Robert ...more >>

I've made a class generator using CodeDom, and it is=20 working fine, but whem i try to compile the class=20 generated I got some CS1003 syntax errors.=20 But terrible thing is that there isn't any error at all !! The workaround is to edit the file and add some white=20 spaces, new lines, or re...more >>

hi is it possible to write activeX controls in C# and if so any suggestions of links to sample code would be appreciated? thanks Adam...more >>

Hi, I am attempting to register an Assembly with the GAC programmatically from within a C# test system I am writing. Unfortunatly the test user that the test system is runs under does not have sufficient rights to register an assembly. I have tried to work around this by using WindowsIdentity....more >>

1. how do i know my form is on top (when topmost == disabled) ? scenario: user clicked on the notify icon (if form is on top) -> minimize the form, (if form is not on top) -> bring it to front, else show the invisible form 2. how do i determine the size of windows resolution ? i wanna save th...more >>

This isn't a problem from the standpoint that its easy to work around. However, I am very currious as to the correctness of this behavior. I am developing an MDI application. In the application I have defined a Toolbox class deriving from System.Windows.Forms.Form. I want only one instance o...more >>

I have a custom web control that needs a javascript file to be included as part of the project. I want to have the control automatically add the file in a specific folder to the project when the control is added to the designer. I've been looking for some kind of designer class, but can'...more >>

How can I convert a : byte [4] to a UInt32 ? thank you ...more >>

I have a .NET windows program that has a VB.NET component and a C# component. The VB component contains the form and handles all the UI stuff. The C# component drives the engine that actually does all the work. The VB component has one form called frmX. On frmX are three text boxes (txtA...more >>

In my code I have to query the local dns server for some data. however, I have no idea how to get the name of the local DNS server. could anyone point me the right direction? thanks in advance, Wiktor Zychla ...more >>

Hi, What I want to know is when a user clicks on a button I send him to another page by using the Response.Redirect("") method. But the page that the user is being sent to has to generate a picture so it takes time.. I want to show a loading messeage there until the Newpage loads.. Anyone got ...more >>

Hi guys, I was wondering how I would go about creating a string array from a single column from a dataset. What I was thinking was iterate through each row in the dataset, finding out the size and create a string array, and then foreach row in the dataset populate the string array one item a...more >>

Can anyone suggest how to match the following lines with regex I have three basic patterns of text 1. A 1-8 digit code eg, 12345678 or 1234 2. A range specification eg, 1234:7890 3. A wilcard specification eg, >1234 or <=45678 So I want to test the following strings to see if ...more >>

Hi, We have the latest version of Visual Studio installed on two machines. Both give an error when trying to use System.Web.Mail "The type or namespace name 'Mail' does not exist in the class or namespace 'System.Web' (are you missing an assembly reference?)" According to the mic...more >>

hi how can i Insert, change and crop META-Tags auf a Webform programmtechnically? Regards Jazper ...more >>

Hi, I'm trying to store appointment data to outlook appointments from a c# application. So I'm using outlook object model thru COM interop. But in the applicaton some of the methods like GetNameSpace() are missing. I want to know while creating wrappers for COM out of process servers are al...more >>

I am a little confused on the sematics here. Is a C# "Function" simply a "Method" that returns a value? ...more >>

Hello guys I`m developing a windows form that contain one Datagrid.=20 In this datagrid I insert a checkBox Column. I need to get=20 all rows where checkbox is checked by user. How do I get this rows ? I can=B4t use the DataSource of Datagrid because I don=B4t=20 have a Column source for che...more >>

I am using a small function to return information from an Access database. Whether I use xml formatted text or otherwise, the results are returned to me in a formatted way. I'm new to C#, so I'm not certain if I'm missing something or this is just the tough breaks with this language. What I n...more >>

Is there a way to compile C# code into a native image?...more >>

Hi, I'm trying datagrid9.aspx sample:Updating a Row of Data w/ Validation. But after I set the paging property, when I click the page number, it won't go to the next page. Any ideas? Thanks... ...more >>

Hi! I would like to check if string contain specific substring. How to do it? P.S. I've done something stupid like String.Replace If str1<>str2.... ...more >>

Hi there, As mentioned in message "aximp of shdocvw.dll -> problem with ShellExecute" posted before, aximp creates two files: AxSHDocVW.dll SHDocVW.dll The second has the same name as the original dll, and that makes problems with internet explorer. The offered solution was disass...more >>

I want to know what're the main differences between them. In fact, I want to write an application to get the request from DB, and then based on the request type (print, email, fax), and then send to print or email or fax objects to send the request out. In order to increase the performance, ...more >>

When I use the Tab Pages Collection editor, invoked from the Properties of a TabControl, I try to shuffle the order of the pages around, and it does not work. I had to go into the "Windows Forms Designer generated code" and edit the order manually. In addition, there was a project where I mad...more >>

Sorry, this is a test ...more >>

Looking for any information on setting file summary properties to Microsoft Office and Adobe Acrobat files. For example, I would like to implement a FileSystemWatcher-launched program that stamps any file with "copyright blahblahblah" in the Comments or Company Name fields. Thanks. ***...more >>

When I code: Debug.Assert(false, "this is a message"); it works fine, and out comes the dialog box. When I code Trace.Listeners.Clear(); Debug.Assert(false, "this is a message"); No message is output. In the debugger I see that clearing the Trace Listeners clears the Debug...more >>

this is a test -- -- WAI, Joseph H. :-) Verification Support Engineer Canonline Media Corporation Tel. #: (604) 677.6994 Fax #: (604) 677.7010 www.canonline.net ...more >>

I've noticed that there are many who like to prefix variable names with m (module/member), n (number), s (string), g (global), etc., however this seems to be unnecessary with C# IMO. Does anyone have any thoughts or references to articles discussing naming standards. ...more >>

Does anyone know how to put an input mask on a textbox? Without using a thrid party control? Thanks. ...more >>

How do I make a data grid's columns not resizeable? Thanks in Advance. ...more >>

Hello all, I am having a problem with one of my desktop applications and was wondering if any of you know of a good tool I can use to monitor traffic in and out of my network card? this is a urgent problem. regards, Jay ...more >>

How do i get the name of the network card in C#?...more >>

I have a service which is used to call differenct versions of an application depending on the database version that is being used. The service has been compiled in framework 1.1 and it needs to call the current version of the application (also compiled in framework 1.1) and also historic ...more >>

I have tried the following code to set the index for a node. It seems to work when I use the root node index of 0. When I try a number greater than 0 I get an out of range error. I made sure that the tree was expanded, as well. treeView1.Focus(); treeView1.SelectedNode = treeView1.Nodes[...more >>

hi Group, Iam developing one Component in c#.It will load any kind of image either from Local machine or URL.Finally I do have options for printing and preview. While printing Iam facing the problem as below.And iam unable to figure it out.Do any one come out with good solution is appreciat...more >>

i wonder how i can create install of my projects, does install include everything that .net projects requires. ex:.net framework 1.1 or i need to install them by myself? ...more >>

how to convert this??? string strDate = "19701105"; DateTime myDate = System.Convert.ToDateTime(strDate); ideas anyone /thomas lindroos...more >>

I want my P2P application to works well even when users are behind proxy or LAN. i.e Two instance of my application should be able to communicate even if they are on different LANs but indirrectly connected to internet. To elaborate it further, suppose there is a computer on my office LAN r...more >>

I want to access via CDO outlook. Therfore i have to logon. In VB.NEt I make it like: Dim objSession As MAPI.Session If objSession Is Nothing Then objSession = CreateObject("MAPI.Session") End If If Not objSession Is Nothing Then objSession.Logon(profileName:="Outlook...more >>

I need C# example code to transfer a file to a PPC storage card. Not sure if this function is part of .net or do I need to call an API or activersync? Thanks ...more >>

Hi, is there any popular C# chat comunnity out there? Thanx for help ...more >>

Is there anybody who can help me to serialize a control like buttons, textbox, and each other control?I don't want to inherit from some of those.I try with SoapFormatter but it tell it can't serialize the control because it doesn't have the [Serialized] attribute. After I try with a XmlSer...more >>

Anyone know if is it possible to create dinamically a struct?For example I want to set the color of a button while at runtime, and to set it's ForeColor property I need to read a Xml file where I store the property value of the button.The color is a System.drawing.Color struct.Anyone know ...more >>