I would like to load an XML document from say D:\mytask\mydoc.xml into a CSharp and to retrieve from the resulting XML node tree a certain node/element by specifing an XPath expression. Does someone know a simple CSharp sample source which shows how to implement this task ? Werner ...more >>

I am trying to learn C# and .NET programming in general but I am finding it very hard going. To start with, I'd like to translate some trivial functions from other languages that I am familiar with into C#. Here is a simple function in OCaml that nests "n" applications of "f" around "x", wit...more >>

I have a XML file as following: <configuration> <MachineList> <Machine Name="mycomputer"/> </MachineList> </configuration> How can I program to change "mycomputer" to "somecomputer"? Any comments will be appreciated. ...more >>

Greetings, How do I insert a dropdown box (predefined values=A,B,C,D) in DetailsView (prefer codeless)? Thanks ascll ...more >>

Hi all I have a requirement and i need some resolution to work on. i have to read a webpage and extract few values from the page. I am using the httpwebrequest meathod to query the webpage that based on the values generate a result on the webpage and then i need to pick the phone number a...more >>

Hye, This is my scenario: 1. Admin login to web application and access module M. 2. Admin logout from the application. User B sees the URL of module M. 3. User B login to the application. User B does not have access to module M. 4. User B types the URL of module M and able to access th...more >>

1) I start my client Windows app 2) At a breakpoint I attach to the aspnet_wp.exe 3) I continue stepping through code I am expecting to make it over to the service project (where I have a breakpoint) but it never goes there. What am I doing wrong? Thanks, Ron ...more >>

Some sample source codes use TextWriter other StreamWriter for writing text into a file. What are the differences ? Carla ...more >>

Is there a way to let VisualStudio insert automatically (after pressing e.g. F7) missing "Using" statements at the top ? Or is there a menu which suggests inserts for using directives ? How can I otherwise find out which "using" I have to add for e.g. "StreamWriter" or "File" ...more >>

In my Windows App, how can I add a nice "Please wait" message to my datagridview? With a datagrid I would be able to clear all columns, add one table with one row with the messsage, and bind it to the grid. But I added the columns to the gridview through the designer, so I'm not sure how to ad...more >>

WhenI search Internet there thousands of comments and samples for database conenction and tuning. They are all advanced and comprehesive. I didn't found a simple "Hello World" for accessing an Oracle database. This sample should contain just - connecting to database, - pass an SELECT FROM...more >>

In options->Project and Solutions I setup in all 3 entry fields D:\work\myvs\ as base directroy. However when I open an existing VC# project all the related stuff is saved into D:\temp\myTestProj and not in D:\work\myvs\myTestProj as expected. Why ? Is there way of reading only this ...more >>

Assume I have an open Form. Then I click the "normal" window "X" icon (=Close button). How do I assign a function in Form.cs to this event ? In other words if this Form/window is closed I want to perform some exit statements. When I doubleclick on a "normal" button I am autoamtically taken fr...more >>

Hi all I want to clarify a Regex, I need to allow up to 20 digits, spaces are allowed within the string too, as long as the overall string is not above 20 in length.. Here's is what I have: [\d| ]{1,20} Is this right or wrong? Thanks Kev ...more >>

I have a Queston about Properties vs Public / protected ive read alot where people say dont use public or protected members always use Properties.... i kinda dis-agree with that. I do want to here from others i may have a class where i dont care about isolation so why not make a public ...more >>

In my application (written for Compact Framework 2.0 ), I have to be informed whenever a system Time change occurs (NTP, daylight saving, ...). Under the normal framework, I'm able to use the "Microsoft.Win32.SystemEvents.TimeChanged" event. However, this is not available under CF. Any hel...more >>

Hello Everyone, What will be the best way of passing large number of paramers from one method to another so that I can insert them in the Database. Thanks....more >>

I would like to be able to send, from an ASP.NET page, an email which when recieved takes the form of a TO-DO list item. Can this functionality be emulated from sending an email from C#? I've read that Ootlook 2007 doesn't support the vTODO standard, is there an alternative? TIA MC...more >>

Hi, I have a project configured as follows: Main form with a tabcontrol with 1 tab page and a panel with some text boxes in. This form also has some bindingsources dropped onto the form. When a selection is made the program instantiates a new class which creates several tabs on the main fo...more >>

Hello, I have an EXE (.NET assembly) file with an icon which has 8 formats (128x128, 96x961, ..., 24x24 and 16x16). I would like the extract the 128x128 sized icon only to display it on a PictureBox control. I made some searchs and discovered that the Icon.ExtractAssociatedIc...more >>

On CF 1.x XmlValidatingReader is missing: is there any way to validate an XML file against its XML schema? Thanks, Luigi. ...more >>

I can't seem to find a test for DBNulls. Whatever I try doesn't work. for (int x = 0; x < dataSet.Identity.Rows.Count; x++) { DataRow dataRow = dataSet.Tables["POI_Entity"].NewRow(); if (!dataSet.Identity[x].Chain_ID.Equals(DBNull.Value)) dataRow["Chain_Id"] = dataSet.Identi...more >>

Hallo all, I need to make an textbox to accept only Cyrilic characters. I couldn't found any solution except enumerate characters for filtering (seems odd). Please has anyone any ideas ? Thank you all, Martin ...more >>

Is it possible to do a case insensitive comparison of individual characters? I tried: Char.ToLowerInvariant(charA).CompareTo(Char.ToLowerInvariant(charB)) And though it works for the most part, it didn't seem to work for all locales. I tried converting the characters to a string and the...more >>

I have a basic Enum: enum MyEnum { Name1, Name2, } And I called MyEnum.ToString(), and this crashed on a machine running .NET 3.0, twice. But, every other time, it ran fine. Strange. The error was System.ArgumentException: Message = "All enums must have an underlying value__ field."...more >>

I'm very pleased to announce that Foundations of F#, the first book to be published on the F# programming, will finish its first printing run, tomorrow, Friday 25th May. It should reach any pre-order customers between 5 to 10 days later, meaning if ordered it on Amazon or Borders (or any other o...more >>

Hi Everyone, Can anyhow directed me on reading up/ links/learning/codes on how to add video ie. mpegs to my C# Windows form .Net 1.1 applications Any and all help is appreciated MikeY ...more >>

Any obvious reason here why data is not being loaded into the database? SqlDataAdapter dataAdapter = new SqlDataAdapter(sqlCommand); SqlCommandBuilder commandBuilder = new SqlCommandBuilder(dataAdapter); dataAdapter.Fill(dataSet, "POI_Entity"); DataRow dataRow = dataSet.Tables["POI_Entity"]....more >>

Ok I would expect this to be easy but am running into some problems. I have a templete column in my datagrid with a button. <asp:TemplateColumn HeaderText="E-Mail Proposal" ItemStyle-HorizontalAlign="Center"> <ItemTemplate> <input type="button" name="email" value="EMail" onclick="OpenOut...more >>

Hello... I have a Windows Forms UserControl in a ClassLibrary and I use this UserControl as an applet in IE. Both WebApplication and UserControl are in C#.NET 2.0. The UC has a button with a handler on it`s click event. I import the UserControl in a ASPX page using the <object> tag. How can I...more >>

I am trying to use a collection editor to edit multiple types as in the following example: http://windowsforms.com/blogs/faqs/archive/2006/05/26/how-do-i-allow-a-user-to-add-more-than-one-type-of-object-to-a-collection-at-design-time.aspx The problem I am having is with the property grid. I ...more >>

Hi I have an existing code-base with some functions which are used by a web application (aspx and ascx). Now I want to add a web-service front to these functions, so they are available via webservice calls. The problem I am running into is that the functions in the existing codebase h...more >>

How to dynamically set a value to a textbox that belongs to a dialog of a custom interface? I'm using VS 2003 Thanks. ...more >>

Hi, I have DataGrid in mt Form, How can I resize the DataGrid respectively to the Form size changes? Thanking you in anticipation! ...more >>

Hi there, I'm trying to handle some shortcut keys within my application and I can't seem to get the code to work when you are trying to action against a ctrl + other character. I found a post http://groups.google.co.uk/group/microsoft.public.dotnet.languages.csharp/browse_thread/thread/a0bf...more >>

How can I transport int arrays between C# and C++ so that an int array created in C# will be filled with contents in the C++ dll and so that this content is accessible in the C# dll again....more >>

sorry for my weak english I want to put here this tematique: What do you do to ensure that your names in code are good. I think that 1) structure - of a code is about half work/invention programmer do the second is the 2) names personnaly I was (when I started to code in work) verry t...more >>

I have a dll created in C#.net, that I wish to call from Delphi 5. I have strong-named the assembly, deployed it in the GAC, and registered it with RegAsm, but whenever I create the pas file (either through the 'Import Type Library' option in Delphi, or via an InteropUtils program I found on th...more >>

Hello, any volunteers to convert VB source code below to c#? I really would appreciate that, because I wouldn't like to learn two new languages... This function can be found from ExceleTel Inc www-site and is copyrighted by the corresponding corporation. Unfortunately, they didn't have c# ver...more >>

I'm using a DataGridView on a Form. I want to disable the clicking on the columns headers to disallow the sorting. How can I do that, but without deriving the DataGridView? Is there any other way to disable the sorting of the DataGridView without deriving it? -- Thanks Sharon...more >>

hi all, I have 3 form (Suppose A,B,C) that all are TOPMOST. from Form A i invoke( Run) form B ,and then Run C from B . i need to to minimize the whole project from Form C . but only form C minimized . anybody can help me plz? So thnx. ...more >>

Hi are there any benefits in using StringDictionary over Dictionary<string, string> ? It appears they achieve the same thing... (I could be wrong of course). thanks, Peter...more >>

ADO.NET - Working with DataSet ========================= HI, I want to create an application that interact with a DB. I wont to use SQL statement, but I want to use DataSet. - I have created my application - From SERVER EXPLORER panel, I have added a connection to a database (MyDB) and the ...more >>

Hi all, I have a problem. I need to connect Web Server, send a xml string (query) to it and receive another xml string (resutl). I have location of the Web Server like: https://extranet....com:8443, then user name and password, then I have the certifiace (I have already installed it to my comp...more >>

Hi, I'm facing a problem with static instances. I have created a class called CustomList by deriving the class List<int>. Inside the CustomList i have created Remove event (when any item is removed from the List). After that i have created a staic instance for the CustomList in my WebSe...more >>

Hi Is there a constant i could use to force conditional compilation based on whether i compile for CF or the Full NET framework ? Johan ...more >>