I'm trying to extend the version of IAS server included in Windows Server 2003 with a custom DLL. IAS, unfortunately, insists on loading Extension DLLs with the Win32 LoadLibrary() function, which means that wrapping my DLL with COM or .Net is not supported. So, I'm wondering if there is a g...more >>

Hi I want to create a image with multiple layers on top. the background color of each layer should be transparent except the last one, hence I can only see the drawed items on such layers. can anyone tell me whether or not C# allow to do this? pei_world ...more >>

Is this a bug in the C# compiler or CLR runtime? enum MyEnum { ZERO = 0, ONE = 1, TWO = 2 } class Foo { public Foo(string,object) { ... } public Foo(string,MyEnum) { ... } } Foo f = new Foo("", 0); // Uses Foo(string,MyEnum) constructor instead of Foo(string,object) Foo f = ne...more >>

Should application data be read and written to the Registry to persist state, or should the App.config file be used? If the Registry should be used, what .NET class reads and writes the Registry? If the App.config file should be used, reading a configuration setting is trivial, but there ap...more >>

Hello guys, Is there an easy way in C# to recognize and pull the text between the "From:" and "To:" strings in the following text: ..... From: John Smith To: Suzan......etc. So at the end I would have a variable in my code has the value "John Smith" retrieved from the above text. Thank...more >>

When I load a csharp program into the MS DbgCLR.exe debugger and trace it everything is fine the first time. Assume now, I change somewhere a code statement in the source file (outside the Debug-IDE) without re-compiling it. DbgCLR.exe recognizes that something has changed in the source file and...more >>

[StructLayout(LayoutKind.Sequential)] public struct COPYDATASTRUCT { public IntPtr dwData; public ulong cbData; public IntPtr lpData; } public struct AAA { public byte No; // ǹºÅ } COPYDATASTRUCT CopyDataStruct=new COPYDATASTRUCT(); AAA aaa=new AAA(); aaa.No =1; CopyDataStruct...more >>

Hi, Does anyone get successful with free hosting for ASP.net web application? If so, may I know web of hosting company? www.brinkster.com's free package does not work for this, do not know why? Thanks. -Dale...more >>

I have a class that contains a collection of reference types. This class needs to have a method that returns the collection to the caller. The method's signature could be either (it could also be implemented as a property): MyObject[] GetObjects(); or ArrayList GetObjects(); The ca...more >>

I have an installer which uses a Customer Information page in it, is there an easy way to pass the serial number entered to a custom action? If not, where would i find the serial number in the registry? I'm using C# for the custom action -- Mark Harris...more >>

This works ok in a new empty project. I write an empty string to a file. Looking at the file with a hex editor, there's a single byte of value zero. I expect this, it's utf8 encoding and this is the leading length byte. In my "real" project I have the following code. The first MessageBox tell...more >>

Hello All, I'm running into a problem that I don't know how to solve (properly, at least). Our web servers are running Win2K and have Framework v1.0.3705 running on them. We have a DLL that we use to verify product registration information from our clients. Earlier this year, our (pro...more >>

G'day, After doing much searching and pinching bits of ideas from here there and everywhere I came up with a fairly 'clean' solution of including a comboBox into a dataGrid column. You can download a fully working C# sample with the Northwind.mdb here: www.insightgis.com.au/web/stuff/DataGr...more >>

I searched for previous answers on this, but couldn't find something fitting. I need advice on how to store decimal numbers with possible null values in memory. The numbers may be negative, so storing null values as -1 doesn't work. The numbers are amounts of money, so decimal is the best dataty...more >>

I'm not comprehending how C# assigns indexes to items you add to a SortedList item. Here's some example code: sl.Add ("first_item","First Item"); sl.Add ("second_item", "Second Item"); sl.Add ("third_item","third item"); sl.Add ("fourth_item","fourth item"); I then run a FOR loop t...more >>

There must be a simple regexp reason for this little question but it's driving me nuts. Below is a simple regexp to determine if a string contains only numbers. I'm running these two strings through the two very subtly different pieces of code: "0" and "0a" If I do the two "nots" on it, it ...more >>

I have followed the instructions for in the Walkthrough: Creating a Windows Service Application in the Component Designer. Everything compiles and builds fine, but I get an error "The account name is invalid or does not exist, or the password is invalid for the account name specified." when ...more >>

I'm learning ASP.NET, C# and VB.NET, and hoping to get some feedback from more experienced programmers on a few issues regarding efficient, readable, well-organized code. I'm trying to program anything I do in the best possible "style," even if it's just a silly experiment (e.g., a simulat...more >>

Hello, I am trying to write a logging component which logs the every sql update and , delete command passed to the program. My problem is I use bunch of parameters in my sql command and somehow I need to access rendered sql statement with all parameter values. I can reconstruct the sql stat...more >>

If my BIL is inheriting and makes reference to my base class why do I also need to make reference to my base class in my UI? I thought the BIL could encapulate away this level of detail from the UI. Am I doing something wrong here? ...more >>

According to the documentation ConfigurationSetting.GetConfig( string ) is used to get user defined config settings. Yet, no matter how I try to add my own sections to the app.config I keep getting errors stating an invalid config file section found. So, can someone elighten me as to how this i...more >>

Hi all, can someone tell me what I need to develop applications for PPC2003 with C#? I have read several meanings about this topic. Do I need Visual Studio .NET or is Visual C# .NET Standard enough?? thanks regards Olli ...more >>

I've written a basic windows service to provide some helper xml functions for my web methods and even thou the service is only about 1k lines long with 1 timer, its mem usage is 10m and its vm mem usage is 14! The same code written as a program that requires you to click on the menu options t...more >>

I manually put a datagrid in on a form. I then added this code to an event to populate it: OdbcConnection conn = new OdbcConnection("DSN=CardBase"); sqlCardHolders = "SELECT * FROM tblcardholders " + "WHERE last_name LIKE '%" + txtLastName.Text + "%'"; DataSet rs = new DataSet()...more >>

Hi there, I have a menu (Collection) that needs to be trimmed based on security access of the logged user. protected void AdjustMenuBasedOnUserSecurity(Items ItemsList) { foreach (Item i in ItemsList) { if (i.Items.Count > 0) AdjustMenuBasedOnUserSecurity(i.I...more >>

Hi, I inherited Button and I created my component (MyButton) In this button onclick event I want show this objects parent form. When my form is not MDIChild this codes run correct. But when my form is MDIChild this codes show MDIParents name. How can I show parent form name (not MDIParent) p...more >>

I need to force the first letter of each word in a line of text to uppercase. The text comes from a TextBox control in a Web Form. I'm new to ..NET and am having a problem. Since I can't modify the string directly, I convert the string to a char[] using .ToCharArray() and set the first letter ...more >>

I'm trying to set the value of a registry value that contains a rather large hex value. Can someone look at my code and show me where I am wrong? The below code appears to work, sort of. But I believe it is adding my HEX number to the end of the exsisting value rather than overwriting it: pr...more >>

I played a little bit with modulo cause I wanted to implement a small parser for functions as I stumbled over a calculation error. First I thought the reason might be a type conversion I did before, but see this small example: using System; namespace modulo_test { class Class1 { [...more >>

I have a Zebra label printer that I'd like to send messages directly to (without creating a printer in Windows). Does .NET have any support for LPD? Thanks!...more >>

I have written a windows service that has a few methods which have a return type of dataset. I also have an application that I have written which I would like to 'hook' into my service and use the dataset functions I have developed. My service and application are two seperate projects under the...more >>

How can I get this statement to work: string strData = '\xB'; I get the error: Cannot implicitly convert type 'char' to 'string'. Can anyone help? PT ...more >>

Hi there, does exists an example how to do %subj%? I've searched google but no usable results found. thanx to all. -- mirek novak...more >>

Hi Folks! i've made a UserControl that wraps a ListView control (and some others) and i'd like to expose the Items and Columns properties. The problem is that these properties Types are provided has embedded class inside the ListView class .. i mean System.Windows.Forms.ListView.ListViewItemCo...more >>

or is there some other MaxRows type of prop so you can limit result set? Thanks in advance! Derrick ...more >>

Here is my scenario: I have a few custom controls that I set up on a form and tested setting properties and appearances. Then I added a couple references to the project which add classes I need to get data from the server to actually do something useful. (These are generated by 3rd party databa...more >>

Hello, We are at a very crucial decision making stage to select between .Net and Java. Our requirement is to download a class at runtime on the client computer and execute it using remoting or rmi. Just to keep my question short I am posting trimmed version of my code. //file: Serializable...more >>

I bet I know the answer already. I have a hashtable (hMaster) that holds several hashtables ("hTables") each of which holds other hashtables ("hColumns"). Presently, I am getting at the info I want thusly (this compiles, at least): Hashtable hTable = (Hashtable)hMaster[tableName]; Ha...more >>

Hi, does anyone know how I can simply get the dataset that is bound to a DataGrid? Something like... DataSet dsDataSet = DataGrid1.Tables[0]........... Thanks Mark ...more >>

I am using transactions on my website and the Isolation Level is ReadCommitted. Since the website has a lot of traffic this may be causing it to lock up every now and again. Can somebody tell me what IsolationLevel I should use if I want the user to be able to read while a record is being i...more >>

Has anyone come across this exception before when dealing with C# graphics? Have come across some answers that point to the accelleration control under the screen's properties/settings/advanced/troubleshooting. ie the graphics driver. Other answers include disposing, revalidate. Any sug...more >>

I am trying to use SqlDataAdapter to execute a Stored Procedure. The Stored Procedure is as follows CREATE Procedure SP_GetAddressesFromContactID @ID int AS SELECT b.StreetAddress1, b.StreetAddress2, b.StreetAddress3, b.Town, b.PostCode, b.County, b.Status FROM Nam...more >>

What can I do in order to avoid first exception pause? I am sure everyone already experienced this behavior and there must be a solution. regards ...more >>

In my application I have two threads. Each of them creates a new propertygrid. In the property grid I have a property with a color editor. Whenever i am clicking on the combo box to change the 'Color' in the first thread is fine. Any other thread that tries to modify the color in the prop...more >>

I'm having issues trying to replace text with PHP. For example, if I have a string of text that reads: {tag} And want to replace that with: $_POST["var"] I get the following result: {tag}POST["var"] The $_ seems to be replaced with the original text. The problem is, I cannot se...more >>

I have a bound datagrid in C# based on an an SQL query. The results are displayed in a Sharepoint 2003 Webpart. I would like to add a new column based on the results of two columns in the datagrid. It is not possible for me to do this within the SQL query as the data provider I am using does no...more >>

Hello, Thanks for reviewing my question. My SQL table has a few string columns and a image column. After inserting a new row into the dataset with the columns populated, I tried calling the Update method on the DataAdapter and I get the following error: "The query processor could not produ...more >>

How can i call to object from string variable ? For instance string x = "textBox1"; i want to call the object which name is stored in the x string variable. The most important thing is the object type is unknown. x may be stored "comboBox1". I think Activator.CreateInstance makes it but ...more >>

Would any kindly tell me if its possible to communicate between a service and a form application. For example, retrieve information from the service, like current activity or progress of its operations. In particular, I would like to to monitor more than just whether a service is running. In t...more >>

Hi all, I want to know is there any facility with UltraGrid with which we can attach a Windows form having a text box and 2 buttons, so that we can write in the textbox and on the click of ok button the contents in the textbox will come in that cell. If any one know plz let me know. its urgent Th...more >>

I'm currently reading data from an XML file using XPathNavigator and XPathNodeIterator to select the subset of data that I want. I've never using the XPath objects before so I'm not sure how to get this data into a dataset. XPathDocument doc = new XPathDocument(@"C:\inetpub\wwwroot\test\test...more >>