Hello! I am using Hashtables to cache data in services and am looking at generics for typed access (I control the key/value types). However, I was surprised to see that the Dictionary throws a KeyNotFoundException if you try to reference missing keys, which is a change from the Hashtable. ...more >>

Hi I am writing a program using the SortedList class . Please contain laughter if i am doing something stupid., I am using a struct as the value part to store a range of information against a unique key (see below) I was hoping that when i found the entry again, i could get a referenc...more >>

Hi all i am having application which is using asychronous web request. At a time i am processing 5 urls asynchronously. Application working properly for 5 asynchronous call. But sometimes CPU usage suddently increases to 100 %. Can some one tell me why this is happening. Any help will ...more >>

I am developing an application that generates source code base on a high level set of parameters. I would like to have a "preview code" window to show the formatted source code. I have searched code project and google for things like "C# code view control" but I can't find anything. In my u...more >>

Say I have an Object of the following class: public class SomeClass { public string var1; public int var2; public SomeType var3; } Now I want to print all the three vars. Is it possible to get an array containing these three vars, making something like this possible: for (int i = 0...more >>

Hi, I want to add a folder (named myFolder) to my project and fill it with files and want it to appear under "../projectFolder/bin/debug/myFolder" and "../projectFolder/bin/release/myFolder". I want my program to access files within "myFolder". What is the procedure in the IDE to do tha...more >>

I'm trying to create a program that dynamicly saves and loads path of a FolderBrowserDialog , but I ran into a problem. Since FolderBrowserDialog is not a Control, therefore it doesn't have attribute such as Name. How do I get the name of a Component or unique string to identify each FolderBrow...more >>

Hello all, Any one tried to implement fckeditor (htmleditor) on your application? i am tring to add fckeditor (www.fckeditor.net) on my dotnet application, but i can't find any connector for image browse and upload. does anyone have such experience can share with us? thanks in advanced. ...more >>

Hi, I'm making some changes to my program, because I need to write with Codepage 850. Before I used FileStream, but I found code to use with StreamWriter instead. My problem is, that I don't get any output when writing with StreamWriter, but only with FileStream. I got StreamWriter to ...more >>

Hello, I'm currently learning c# and have been trying to write a simple program with sockets. The problem is i'm trying to send an email with an attachment, (which is the program itself) by using base64. When i run it it sends the email ok, but and attchment doesn't work i get an error whe...more >>

.... retreiving other instances parameters ? How can I do this ? TIA...more >>

Hi, I would like to set the GroupBox's border to invisible, how to do that? Thanks for help. Jason ...more >>

[Newbie Alert] I have a combobox that populates its items from a text file when its form loads. I have added to one of my buttons click events some code to add any entrys that are manually entered to the combo - something along the lines of: cboProcess.Items.Add(cboProcess.Text); Thi...more >>

Hi there, How should I do if I want to release/renew IP in C# ? Thanks!! Best regards, Paul ...more >>

Hi, I am wondering why the size of { array, array-list, ... } is a signed type instead of an unsigned type. TIA. Marco....more >>

Hello NG ! I have a tricky question about dataSet and dataTable. In my app I have 2 databases. In the first (called A1) database are the whole datas but I'm interesting in one table tbl1 (with 20 attributes). To communicate with the DB A1 I have a lib, which gives me a dataset of this table tbl...more >>

does anyone knows how to "POST" message to microsoft news group with asp.net? cuz whenever i use POST command there it gives me an error that "command not requdnized" any idea? ...more >>

Is there any function to as: arrayvalue = {0, 2, 4, 6, 7, 8} arraystring = {"Zero", "Two", "Four", "Six", "More1", "More2"} If the parameter value is 6, the function return "More1". Which function can do it? ...more >>

Hi Guys, I do need to transform some excel spreadsheets into xml files through an automated process. Is it possible to do it using XSLT? Could anybody give me any direction? Cheers, Fabio. ...more >>

Is it possible to serialize SortedList<T,V> or do I need to come up with my own method to get the data into and out the list? I'm pretty sure I know that it's "no" I'm just curious if there are any tricks around. Here's the error I get when I attempt to serialize a SortedList<T,V> Unhandle...more >>

Aaarrggghhh! Maybe I've just got lucky, but until now I haven't had such a seemingly unrecoverable form corruption error... I have a reasonably complex form (data-binding to sub-controls, events, etc), which was working fine... until about an hour ago... Now, although the form works fine wh...more >>

.....that is the question. Any who, I have an application that only a handful of people will being using. One of the features allows them to retrieve of a listing of people into a datagrid. I'd like to make the method that does this static. Once the data is retreived it is munipulated local...more >>

Hi, I have to display a double like this one 1.3234546 and this 2.0000. If the double is like the first one then I only want to display 1.32. This works with {0:F2}. But with the second one I like to display 2. Not 2.00. How can I do this? Thanks! ...more >>

I hope I can explain this in a way that can be understood. I have a custom control, I'll call it navigator, used to navigate "things". I has, among other controls, two standard buttons, previous and next. This control is implemented by other custom controls that displays "things" in differen...more >>

Hi. Hello, i want doing simple compiler in C# (.NET). I have lexer and parse file. What kind of tools should I use? And what to do?? Thanks! pawel ...more >>

I have a method in my class that needs to return formatted XML, with the carriage returns, linefeeds, and tabs... However, when I return oXml.OuterXml, the Xml is not formatted... Every example I've seen involves writing the Xml to disk before it's formatted (or perhaps is formatted whil...more >>

Hi, I have a console application to export crystal reports result to PDF. For one of my report file, when i call Export() function from my code, I get "unknown query engine error". I have Crystal Reports 8.5 with service pack 3 installed. If I load this report directly from Crystal Report...more >>

Hi, I'm trying to use DataView to find the row number in the datatable that contains "Rich" in it so that I can highlight it. It works fine when I enter the entire string (i.e. Richard), but I can't seem to make a search for "Rich" recognize that Richard is also what I want. The problem s...more >>

hi all I was making a non rectangular form in C# using a bitmap with a white background and set the transparency key property of the form to white and it works but when I color quality from the system properties to 32bit it didn't work is there any way to overcome this or is there a differe...more >>

I'm starting work on what will eventually be a very, very LARGE project. A lot of the project involves taking C/C++ class libraries and wrapping them with managed C++. I'd like to minimize the number of DLLs I have (because I'd like to keep my sanity). Is there some way to compile a managed...more >>

Is it still true that the managed C++ compiler will produce much better opimizations than the C# compiler, or have some of the more global/aggressive opimizations been rolled into the 2005 compiler? Are simple common sub-expressions and loop invariants optimized out in the current optimizer...more >>

I have this code: string test = new string(' ', 2); test[0] = 't'; and I'm getting a compiler error that string.this[int] is read only. Hmmm. Why? I didn't declare it const or readonly? ...more >>

Hi, I have successfully created a class derived from the RTF widget that can syntax highlight XML as fast as you type :-) The only problem I have is that if the user does an 'undo' then syntax highlighting is undone. Is it possible to disable the undo stack during specific operations ? ...more >>

I'm sorry if this has been asked and answered, I looked and didn't find this particular situation so I have to ask. If I understand correctly, the .NET XMLDOM must have an XmlNamespaceManager bound even if the namespace doesn't have a name. (i.e. <TopNode xmlns='www.microsoft.com'>) And...more >>

Hi, In my app I need to delete several user profiles inside the Documents and Settings folder. But everytime i try Directory.Delete(path) I get a IOException with "Access denied to path ..", however I can delete the folders using windows explorer. I'm logged in as an admin and the program ru...more >>

Hi, How can i validate user input in a datagrid ? I want a column to accept just numeric values. If the user enter Text then the changes must be rejected and the value set to waht it was earlier. Thanks in advance -ZS ...more >>

If I rebuild all my projects (for each configuration: debug & release) using batch build, the WRONG referrenced DLLs are copied into the bin folder for the main project. If I do a batch build, I expect the RELEASE versions of my referenced projects to be in the RELEASE bin folder of my main pr...more >>

I'm a little surprised. I tried to search for a way to open a modal dialog using c# in a code behind file but couldn't really find it. I know there is a way to do it, but I guess I'm still struggling learning the help system. Here is the deal. I am writing web based front ends. I'm right now ...more >>

Is it possible to access the http headers of the 'conversations' between the WebBrowser and the remote web server. (ie those defined in RFC 2068 and later RFCs... http://www.faqs.org/rfcs/rfc2068.html) If not which objects are the best to use to have such a conversation. The library is s...more >>

Hi, My question is very simple I am sure but I cant seem to find a solution anywhere.... I have a windows form in C# and I have added an axWebBrowser control. When the form loads I am trying to display a web page in the control.... but I have tried Navigate and Navigate2 methods and what...more >>

Hi, I am using a strongly typed dataset in .Net 2.0, and would like all tables to inherit from a cusomt datatable class instead of DataTable. The reason for this is that I want some common code excuted on the row events, and this I want to implement this once in a Table base class. ie. ...more >>

Hi there, If i have a dataset which has a datatable which has fields matching an existing SQL Server DB Table exactly, is there an easy way to merge all the records from the datatable into my SQL table without having to write a stored procedure or SQL insert statement? Cheers, Chris ...more >>

Hi, I have various chunks of code i want to benchmark to see how long they take to do. What i'd like to do is check the time at start of code then check time at end of time to see how long it took. I need better accuracy than just milliseconds I'm looking for the time to be very accur...more >>

Hi! A question concerning the datagrid component in Visual Studio .NET 2003 I cannot seem to find any documentation about setting the first column (column 0) to zero, that is: make it invisible. But I know from experience with these groups that there may always be a chance somebody know a...more >>

Hi all, I have a COM that has a single function: public Test(Decimal input) { return input; } From MSDN, it said that Decimal, be default, will be marshalled as COM's Decimal But I found that it become wchar_t the MarshalAs Attribute only has Currency for decimal (but no "Decimal")...more >>