.net

Set WordWrap= false to a Label

How shoudl I set WordWrap = false to a System.Windows.Forms.Label? I have a header on a panel. Should show "MyPanel capt...". So I use AutoEllipsis = true, but is not sufficient. I use also "AutoSize = true", because want that the label take minimum space possible. A propos, VB6 did it. ...

Entity Framework Multiple associations to a table causes error 3033

I'm using EF 3.5 SP1. I have 3 tables: Pendants PendantAccessories PartsData Basically #1 and 2 are used for product selection, so #1 has a "Number of Buttons" property and other options. #2 has fields like "Cable Type" etc. The third table contains property information for all of our parts, such as what plant it's manufactured...

ASP .NET - What's going on behind an Eval() ?

Hi, I'm trying to understand how Eval() works for a specific purpose. I'm working on a project I don't really know and I need to read some data and put them in drop down list. These data are already read and are displayed inside an ItemTemplate. I noticed there are read using the Eval() method. Something like: <ItemTemplate> <a href...

How to specify numeric width and precision when creating a dBase database?

We need to be able to create a dBase database (.dbf file) containing numeric columns with specific width and precision. I seem to be able to set the precision but not the width. The following code shows my connection string and my command text. using (OleDbConnection oConnection = new OleDbConnection(String.Format("Provider=Microsoft.Je...

Which audio library to use?

I want to build a .Net application for processing audio, and distribute it using ClickOnce deployment. I need access to a raw audio pipeline. Which audio library should I be using? I've heard the managed libraries for DirectSound are a dead end. I need as little as possible to be installed on the client's machine. Anything outside of the...

Is there a utility that can monitor open windows/ in .net winforms?

This is a general question, but I'll explain my specific need at the moment: I want to find the framework class that enables one to choose an image at design-time. I can find the editor that is used at run-time - its the Drawing.Design.ImageEditor. At design time, however, a different editor pops up which allows one to choose an image ...

Is there a way in .NET to access the bytecode/IL/CLR that is currently running?

Hi. I'd like to have access to the bytecode that is currently running or about to run in order to detect certain instructions and take specific actions (depending the instructions). In short, I'd like to monitor the bytecode in order to add safety control (see EDIT #1 for explanation). Is this possible? I know there are some AOP framew...

Parent child class relationship design pattern

I have a class which has a list of child items. Is there a design pattern I can copy that I can apply to these classes so that I can access the parent instance from the child, and it enforces rules such as not being able to add the child to multiple parents, etc? ...

COM Interface Guid

Hello, I'm not much into COM interfaces, so i have a small question, say I have this code: [Guid("148BD528-A2AB-11CE-B11F-00AA00530503"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] internal interface IEnumWorkItems { [PreserveSig()] int Next([In] uint RequestCount, [Out] out System.IntPtr Names, ...

Changing a Collection from within a loop

I have a simple Dictionary(of String, Object) that I need to iterate through and change items depending on some conditions. As I can't modify a collection that I'm iterating through, how do I achieve this? For example, the following obviously causes an Invalid Operation Exception: Dim mOptions As New Dictionary(of String, Object) mOpt...

Convert XML to DataSet with rows

Hi, I have an xml file like this: <result> <customer> <id>1</id> <name>A</name> </customer> <customer> <id>2</id> <name>B</name> </customer> </result> So I need that data filled on a DataSet, here is my code: var reader = new StringReader(xmldoc.InnerXml); dsDatos.ReadXml(reader); The problem is that i...

Rewrite HyperLinkField.DataNavigateUrlFormatString on the fly

I have a asp:GridView with a HyperLinkField. It's DataNavigateUrlFormatString property is set to View.aspx?id={0}&isTechnical={1} and DataNavigateUrlFields to ID,isTechnical Where ID is primary column INT and isTechnical - BIT, i.e. SQL Server representation of bool. So urls are being displayed like View.aspx?id=1&isTechnical=1 but I ...

When does clr loads an assembly in .net process?

Is it loaded when a class from the assembly referenced? Or When a class which declares the using namespace from the Assembly is loaded? Also having loaded an assembly does it ever unloads the assembly if it is not used for a long time? ...

How can I listen to multiple Serial Ports asynchronously in C#

I have an application that listens to a piece of hardware on a USB to Serial converter. My application should monitor more than one serial port at the same time. I loop the serial ports I need to listen to, and create a thread for each port. In the thread I have my data handing routine. When I assign one port, it runs flawlessly. When ...

.NET developer has a few hours to cram for a Java proficiency test. What to do?

I have an interview tomorrow morning and just found out that I will also be taking an hour-long Java proficiency test! I am a certified C# .NET developer but have barely touched Java since college. (Yes, I am thinking about switching from .NET development to Java!) I'm not going to be able to effectively cram the whole of the Java libr...

Managing multiple WCF endpoints for the same service

I am building an single application that uses WCF to call out to multiple external endpoints. All of the remote endpoints are identical except for the URI. I would like to treat them as a pool: add and remove endpoints through configuration and have the application understand what to do. My original plan was to define one endoint in t...

Which .NET exception to throw for invalid database state?

I am writing some data access code and I want to check for potentially "invalid" data states in the database. For instance, I am returning a widget out of the database and I only expect one. If I get two, I want to throw an exception. Even though referential integrity should prevent this from occurring, I do not want to depend on the ...

Linux friendly (.NET/Mono) browser object?

Hi folks, A friend of mine (familiar with C# and .NET on Windows) has asked how to port some functionality to a Linux host. This functionality is based on a JSP web page that fetches some data from the host server and displays it in a banner on a page. His Win/C#/.NET code simply creates a browser object which loads the page and he then ...

Is there any benefit to declaring a private property with a getter and setter?

I am reviewing another developer's code and he has written a lot of code for class level variables that is similar to the following: /// <summary> /// how often to check for messages /// </summary> private int CheckForMessagesMilliSeconds { get; set; } /// <summary> /// application path /// </summary> pr...

Context Menu Shell Extension not working under Windows 7 64-bit

I created very simple Context Menu using Shell Extension in C#. It works fine under Windows XP 32 bit but under Windows 7 64 bits menu items not appearing. I tried to build Setup output to x64 but no effect. Simple Source contains ContextMenu and Setup project is under http://bit.ly/9nGd41 Looks like Wow6432 should be handled by Setup...