I'm new to the Framework and C# so I ask the following: What is better to do when using data? Should data reside in a Dataset and be pulled from it or should the data be placed in classes that model the dataset and dispose of the Dataset? I suppose if changes are to be made the Dataset would...more >>

How do I bind an arraylist of custom objects to a dropdownlist and set the datavaluefield and datatextfields? Let's say I have an array of custom 'Person' objects. public class Person { public string FirstName; public string LastName; ..... } I want to bind an array of Person objects a...more >>

I wrote a component library in C#. Is there a tool that will generate documentation for me which looks exactly like the Microsoft .NET framework documentation? I saw a third party component that had documentation that looked just like it was from the .NET framework documentation - same exact ...more >>

Hi, Does anybody know how to implement SQL Merge replication using Visual Studio .NET 2003. Thanks, Sathish. R ...more >>

I'm wondering how you go about programming a property that accepts a bitwise combination of enum values. That is, where you can specify to a property something like: Enum.Value1 Or Enum.Value5 What I can't figure out is how you derive, from the code inside the property, what values have bee...more >>

Hello everybody, I found several problems formatting numeric values. The first problem is that standard numeric format strings "N" or "n" doesn't use "Display leading zeros" Windows regional settings (at the "Numbers" tab), it always uses leading zero regardless Windows settings. I was thinking...more >>

Hi, I have a user control which I have registered in a webform. In page_load method of user control, I am doing a response.write of some simple text. I donot have any codebehind file for my webform. But when I load the WebForm in my browser, I see the text from response.write written out to...more >>

I'm using reflection to get all public methods for a type, and I get all these methods starting with "get_". What's that all about? They aren't viewable from the object browser. ...more >>

Hi, I am trying to put all the error messages for an application in a resource file so that the error messages can be reused and is consistent across the application. Some of the messages need contextual information like The file '{0}' cannot be deleted from the '{1}' . Please ensure th...more >>

I have a third party application that has a SQL database I am trying to work with this in my code but the database name has a space in it so when I try the following connection string: Dim connString As String = "server=10.0.0.1;uid=sa;pwd=;Initial Catalog=Third Party" I assume it is cuttin...more >>

What's the means of Remote of .Net? any body help! ...more >>

FileReader = New StreamReader(System.Reflection.Assembly.GetEntryAssembly.GetManifestResource Stream(ResourceName)) Works just fine in a Windows Application - it reads the resource file I have in my project. But the same thing won't work in a console application. it gets a system.Argument...more >>

Hi Group, I have a class which inherits from Windows.Forms.DataGrid. Imports System.Drawing Imports System.Windows.Forms Public Class MyDataGrid : Inherits System.Windows.Forms.DataGrid .... Then, inside the class I use a DataGridTableStyle and I add columns derived from DataGridTextB...more >>

Hello, I have been asked to write a program and allow the end user to create custom fields in a SQL Server database in addition to the premade fields. I understand how to add the column, the data type and such. My question is I need to accommodate the added forms in some sor...more >>

Is it possible to use a c# dll in an environment where the dot net framework has not been installed ? For example will a C++ wrapper do the job? Thanks. DD...more >>

Hi, I would like to know that wether .NET having two compilers And explain me about .NET Framework in the detail way Thanks & Reagrds Antalin ...more >>

From my VB.NET code, I have created a new pane in the Output Window of VS.NET, but for the life of me, I cannot determine how to remove/close/delete the pane....more >>

Hi. Is it possible to access the parallel port? Nnamdi. ...more >>

The msdn and all other books saying that the Unsigned integer(ex: UInt32) type is not CLSCompliant. But C# and VB.NET both are taking UInt32 as CLSCompliant. The following sample code compiles with out any errors by using either C# or VB.NET: using System; [assembly: CLSCompliant(true)] names...more >>

I want to bind a datagrid to MyItemCollection that consists of MyItem objects. Problem is I'm not sure how to notify the datagrid of property changes in a MyItem object. Anyone have any ideas? Thanks...more >>

http://msdn.microsoft.com/msdnmag/issues/01/07/vbnet/default.aspx Hi, I have created a batch file router using the filesystemwatcher componant. I am facing the exact same issue as the link above. Does anyone have a more elegant solution to this problem rather than just "trying to continu...more >>

hi group I want to do somethng like that : class MyClass { public int _a = 0; int a { public get{return _a;} protected set{_a = value;} } //OR public int _b = 0; public int b { get{return _b;} } protected ...more >>

Suppose I have a form FormA, and two objects ObjectB, and ObjectC. ObjectC has an event SomethingChanged. FormA has a reference to ObjectC. FormA also instantiates an ObjectB object, passing it the ObjectC object and one of its controls. (ObjectB stores those two references.) ObjectB register...more >>

I have created a .Net winforms control (Windows Control Library Project) that I want to host in a web page. There appears to be an interaction with some IEAK settings that cause the browser, after and/or while loading the control to pop up the message stating that 'no connection to the internet is ...more >>

Hi, I have a simple .exe application that I need to invoke from my C# application. I need to send it two strings and then get the result back. Can anyone advise me on how this is done? Also, I'm currently using a windows forms application but I would like to use an ASP.net appliocation to...more >>

Hi I am writing into an XML file in one function and reading it from a diff func simultaneously.I am using datasets to perform these operations. It works fine but I get a JIT Debug error saying that file cannot be accessed as it is used by another process. Why would I be getting this error Could...more >>

Consider this: Data.Biz.User user = new Data.Biz.User(Logic.Biz.User.connectionstring,Logic.Biz.User.Lib); //returns a datatable DataTable dt = user.UserInfoSearch(buffer.ToString()); DataSet ds = new DataSet(); ds.Tables.Add(dt); return ds; can be turned into this peice of poetry Sy...more >>

As a newbie to Java I need a bit of help. I have the line <A HREF=JavaScript:showPanel('tab3')> in the <body> of my pages html which when the page does not call the identified function. I have put alert statements in various places and the ones in the called function does not appear. The...more >>

Hi, I would like to format the strings and align them by decimal point. This is what I am doing and displaying them in a multiline textbox. formatstr = "{0:###.####}"; tempStr = String.Format(formatstr, val); This does not align them by decimal point. How...more >>

I'm trying to accomplish the below, and for some reason keep getting errors saying Type Expected. can someone assist me? { Type t = new typeof(Apple); ---etc ...more >>

What is Windows Form Assembly? How to understand this title? any boy please help... ...more >>

Hi all, I am working on .NET framework 1.1 While binding data to our master table in the database, we are using this System.Data.Relatedview class. But the issue is, it does not appropriately update data. The databinding is failing too. I traced down the issue to this particular class by ma...more >>

I need to erase all the childs in a XmlNode object. I see that it has a RemoveAll() method but this erases the attributes as well and that's not what I want. How do I do this? -- Sergio Florez M. Miembro activo www.AlianzaDev.net El que persevera insiste Medellín, Colombia ...more >>

Hi, With the framework 1.1, I tried to read some informations about user accounts in ActiveDirectory. For some accounts, the property "memberOf" is available, and for some others not ... I didn't see any difference (except names) between the accounts ... I tried to create a new account (with ...more >>

I have a template that I would like to include a namespace in but I won't be using that referenced namespace til a few months from now. In the mean time, will that referenced, but not used/called namespace consume any resources? The template is going to be used by many people who will modify it t...more >>

I have a DLL which I am using Assembly.Load and CreateInstance to instantiate. Dim path As String = "myDLL" Dim className As String = path + ".SomeClass" Dim foo As IFoo foo = CType(System.Reflection.Assembly.Load(path).CreateInstance(className), IFoo) This works, and creates an inst...more >>

ok this is the craziest thing every. I have a piece of code that connects to a dsn database. I have tested the connection two different ways ************************ONE using ADODB; ADODB.Connection dbSupra = new ADODB.ConnectionClass(); dbSupra.Open("DSN=112","urs","pss",0); ****************...more >>

Hi, There is currently a.NET Framework 1.1 Service Pack 1 Tech Preview available at microsoft: http://www.microsoft.com/downloads/details.aspx?FamilyID=12721880-CB9F-4481-9610-987DE96532E7&displaylang=en I don't really get it I guess, but this looks not to be a 'real' Service Pack? Is it so...more >>

Greetings, I have an enterprise-wide ASP.NET app that I'm trying to optimize as much as possible. MSDN states that the IncrementalBuild property "enables incremental compilation, in which only methods that have changed since the last compilation are recompiled." Is this to just speed up co...more >>

My code is this: void WriteOut(object ob) { Type pTy = ob.GetType(); if(pTy.BaseType is System.ValueType) ..... I get this error: The given expression is never of the provided ('System.ValueType') type Maybe I am thinking about this wrong. I want to pass generic "objects" ...more >>

I am attempting to use the shell to display the properties page for a file, yet I haven't been able to get it working. I made a class to call ShellExecute through shown below: class Win32Shell { // omitted stuff public const UInt32 SE_ERR_NOASSOC = 31; // omitted [DllImport("shell...more >>

Hi all You might have heard that Microsoft has published XML Schema for Visio Shapes.I am developing a small app which read from this XML and draw shapes using GDI+.But i am stuck with ellipitical arc .The XML Containes Following data 1. two end points of the arc - ( X1,Y1),(X2,Y2) 2. on...more >>

I've got a class that needs to constantly communicate with an external device while the app is running. So I've done something similar to the following: Imports System.Threading Public Class Device Private commThread as Thread Public Sub New() commThread = New Thr...more >>

Hi all, I'm trying to convert Petshop v3 to VB.NET The following line is supposed to return an instance of a class, where path is the DLL and className is the class within said DLL. return (PetShop.IDAL.IAccount) Assembly.Load(path).CreateInstance(className); For example, if path = "Pet...more >>

Suppose that I have a class in an assembly that is delivered to the user, what can I do to change the class so that it doesn't break the binary compatibility? That is, user application can run with recompiling and relinking. I know that if I define an interface, and only expose the interface ...more >>

I have a class, the class has properties and methods, Properties have his private variables So, from my local method what is better to use? the property or the variable ...more >>

Hi. If I want to create a window/form in a C#.NET windows application which is irregularly shaped (it's shape is defined by a region), can I do this without making Win32 calls? If not, can you help me with the Win32 stuff I have to do from C#? Thanks. Alex Maghen...more >>

For the appsettings values in .config files, is it cached for very fast access once a value is accessed? E.g. if I have to call this: ConfgiurationSettings.AppSettings["MyID"]; on every user action, is it better off to just store the value in a, say, global static variable? Thanks Bob ...more >>

I have a treeview of removable drives when I eject a drive I want to refresh the treeview and remove all the child nodes associated with that ejected Drive Node. I have attempted code that will delete the items but I keep receiving a "Object reference not set to an instance of an object." When...more >>

(longish message, but I appreciate ANY insight) We have a .NET 1.1 Winforms application that recently started to exhibit some odd behavior. Specifically, after sitting idle for a while (> 30 minutes), the user's CPU starts getting hammered. Here's some background info: First, it's a desktop...more >>