.net

Finding ALL positions of a substring in a large string in C#

Alright, so what i have, is a large string i need to parse, and what i need to happen, is find all the instances of extract"(me,i-have lots. of]punctuation, and store them to a list. So say this piece of string was in the beginning and middle of the larger string, both of them would be found, and their index's would be added to the Lis...

Progress bar in data grid view

Is there a way to have a progress bar in a cell in a DataGridView? At design time, you can add a TextBox, Button, Image, Link, ComboBox, or CheckBox, but not a ProgessBar. Is there a better control in WPF that will allow this? ...

Is it possible to parameterize a MEF import?

I am relatively new to MEF so I don't fully understand the capabilities. I'm trying to achieve something similar to Unity's InjectionMember. Let's say I have a class that imports MEF parts. For the sake of simplicity, let's take the following class as an example of the exported part. [Export] [PartCreationPolicy(CreationPolicy.NonShare...

Does ASP.net 1.1 support Generic HttpHandlers ?

I need to get an image from a SQL Server as a byte[], and load it to a WebControl.Image. The only seemingly good way to do it that I found is to implement IHttpHandler and handle the request accordingly. But I'm stuck to using asp.net 1.1. Does it support ashx files? ...

Regular Expression Fill-Down

I have a plain text file something like this: Ford\tTaurus F-150 F-250 Toyota\tCamry Corsica In other words, a two-level hierarchy where the first child is on the same line as the parent, but subsequent children on lines following, distinguished from being a parent by a two-space prefix (\t above represents a literal tab in the ...

understanding silverlight resource file format

I'm trying to understand the format of silverlight resource files. There are 4 bytes of the data comes after PAD. I'd like to know what these values are, and how they are generated. here is the hex dump of a .g.resources file. Here is what I know: there is 0xbeefcace at the beginning, then there is dependancies, then padding. after t...

In ASP.NET, how do I detect a password in a Word 2003 or 2007 file?

My users like to upload password-protected Word documents into our custom document management system. I'd like to add a validation to check for the password and refuse the upload if it has a password. Automating Word - with COM interop - is out of the question because this is a server side application. ...

set current user in asp.net mvc

Hey guys, I'm not sure if this is the best way to do it, but I want to keep a user object alive during all requests of the current user. From reading several resources I learned that you should create your own IPrinciple which holds this. But I don't want to trigger the database every authentication request. Any recommendations on how t...

.NET/C# - Disposing an object with the 'using' statement

Hello, Suppose I have a method like so: public byte[] GetThoseBytes() { using (System.IO.MemoryStream ms = new System.IO.MemoryStream()) { ms.WriteByte(1); ms.WriteByte(2); return ms.ToArray(); } } Would this still dispose the 'ms' object? I'm having doubts, maybe because something is returned befo...

Transferring binary data through a SOAP webservice? C# / .NET

I have a webservice that returns the binary array of an object. Is there an easier way to transfer this with SOAP or does it need to be contained in XML? It's working, but I had to increase the send and receive buffer to a large value. How much is too much? Transferring binary in XML as an array seems really inefficient, but I can't see...

.NET Runtime Optimization Service

I see that the Service ".NET Runtime Optimization Service v2.0.50727_X86" is disabled C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\mscorsvw.exe I guess I probably did that, not sure. Do I need it/Should it be running? ...

.NET HttpListener - no traffic when listening to "https://*.8080" when browser proxy is set???

Hi, Background - I can get HttpListener working fine for HTTP traffic. I'm having trouble with HTTPS traffic however. QUESTION: How can I change the code below so that a browser request to a "https" URL will actually be picked up by my HttpListener? Notes - At the moment with firefox's proxy settings set to "localhost:8080", when ...

How to Create Deterministic Guids

In our application we are creating Xml files with an attribute that has a Guid value. This value needed to be consistent between file upgrades. So even if everything else in the file changes, the guid value for the attribute should remain the same. One obvious solution was to create a static dictionary with the filename and the Guids ...

Using Windows Integrated Authentication when connecting to db4o in .net?

When opening a client against a db40 server it seems to expect a user name and password Db4oFactory.OpenClient(string hostName, int port, string user, string password); Is there any way of using windows integrated instead? ...

WinForms prints to default printer even if it's not available/connected

How can I determine if printer is connected? Typically this application prints to the default printer but in some cases that printer may not be available. If so I don't want the job sent to it's queue but rather printed to another available printer. I understand the PrinterSettings.InstalledPrinters property. Does PrintDocument.Printe...

How to send data securely over a public channel?

Hi! I have a smart client application being deployed with a CickOnce webpage. here's the current scenario. 1.User runs the application, and the application shows a login form. 2.User enters ID/Password in the login form, and the application sends that information to the server. 3.The server authenticates the user and sends configuratio...

How can I programmatically obtain the company info used to digitally sign an assembly in .NET?

As a means of simple security, I was previously checking the digital signature of a downloaded update package for my program against its public key to ensure that it originated from me. However, as I'm using cheap code signing certs (Tucows), I am unable to renew an existing cert and therefore the keys change every time I need to renew. ...

What should a WinForms developer know for an ASP.Net interview?

I am an experienced WinForms/WPF/Silverlight developer and have an interview for a product that is ASP.Net. I am very familiar with C# and .NET, as well as standard HTML and CSS (from rails programming). So what else should a WinForms developer learn before and ASP.Net interview? ...

A web framework where AJAX was not an after thought

AJAX is a pain in the ass because it essentially means you'll have to write two sets of similarish code: one for browsers with JavaScript enabled and those without. Not only this, but you have to connect JavaScript events to hook into your models and display the results. And if all that weren't bad enough, you need to send an address c...

WPF win app and browser app

I'm hearing this alot, that you can develop an app in WPF and run it as a desktop app or in a browser. Is this really true? I've install visual studio 2010 and I see 2 project templates : WPF Windows Application and WPF Browser Application (XBAP). Currently reading a book on WPF, it talks about Page-Base app, which can be use for nav...