.net

Remember values that user has typed into a combobox

Is there any built-in or easy way to add autocomplete and persistence to a combobox (like in a browser)? It would also be great if users could delete entries (also present in most browsers)? Basically, the user would type in a command, then type in another one and also be able to use the dropdown (or Suggest/SuggestAppend) to grab an...

How to setup a WPF datatemplate in code for a treeview?

struct Drink { public string Name { get; private set; } public int Popularity { get; private set; } public Drink ( string name, int popularity ) : this ( ) { this.Name = name; this.Popularity = popularity; } } List<Drink> coldDrinks = new List<Drink> ( ){ new Drink ( "Water", 1 ), new...

.NET Reference "Copy Local" True / False Being Set Based on Contents of GAC

We had a very interesting problem with a Win Forms project. It's been resolved. We know what happened, but we want to understand why it happened. This may help other people out in the future who have a similar problem. The WinForms project failed on 2 of our client's PCs. The error was an obscure kernel.dll error. The project ran fine o...

WinService, startup and network

I'm writing in .NET a windows service that, at windows startup, executes some network operations. I noticed that my service starts before the network is up. How can I check the network connectivity? Or, better, how can I check if the dhcp gave me an ip? ...

How to bind a List to a WPF treeview using Xaml?

I don't know how to bind a List of Drink to a WPF TreeView. struct Drink { public string Name { get; private set; } public int Popularity { get; private set; } public Drink ( string name, int popularity ) : this ( ) { this.Name = name; this.Popularity = popularity; } } List<Drink> coldDrinks...

How to append new elements to Xml from a stream

I have a method which returns some xml in a memory stream private MemoryStream GetXml() { XmlWriterSettings settings = new XmlWriterSettings(); settings.Indent = true; using (MemoryStream memoryStream = new MemoryStream()) { using (XmlWriter writer = XmlWriter.Create(memoryStream, settings)) { ...

Field.SetValue alternative

Is there any. I just ran the new perf analysis tool of vs2010 and as it turns out this func consumes most of the cpu resources. Is there something else i can use? ...

Queryable and BindingSource item add .net

Hello! I wrote my own simple Queryable provider which retrieves data from a database. Now I need to bind this data to a BindingSource and when the new item is added to BindingSource some event or method must be called for handling the add operation. I have tried to implement IBingingList on a List class which is returned when the quer...

How to show a image in database in the image control of Asp.net ?

How to show a image in database in the image control of Asp.net? We have to show the image of employee along with his details in the asp.net page, but the issue is how to show the image on the asp.net image control for the image control takes picture by the property ImageUrl. Kindly guide.... ...

How do I achieve copy/paste behavior both ways between Excel and a DataGridView component?

How do I accomplish being able to paste data from Excel into a DataGridView and vice versa? ...

High performance text file parsing in .net

Here is the situation: I am making a small prog to parse server log files. I tested it with a log file with several thousand requests (between 10000 - 20000 don't know exactly) What i have to do is to load the log text files into memory so that i can query them. This is taking the most resources. The methods that take the most cpu t...

linq selecting into custom object

what is wrong with such code public List<SearchItem> Search(string find) { return (from i in _dataContext.News where i.Text.Contains(find) select new SearchItem { ControllerAction = "test", id = i.Id.ToString(), LinkText = "test" }).ToList(); } public struct SearchItem { public string Controll...

Exception using SQLiteDataReader

I'm making a Custom SQLite Wrapper. This is meant to allow a presistent connection to a database. However, I receive an exception when calling this function twice. public Boolean DatabaseConnected(string databasePath) { bool exists = false; if (ConnectionOpen()) { this.Command.CommandText = string.Format(DATABASE_Q...

Inserting Ending Tags For Missing Tags In html.

How to insert the ending html tags where there are missing ending tags ? Like <tr> <td>Index No.</td><td>Name</td> <tr> <td>1</td><td>Harikrishna</td> Where two missing ending tags.That is "/tr".Now in this case how to Search where are the missing tag and there how to insert appropriate ending tag such as "/tr". ...

My Website was hacked using Statcounter! Does Statcounter keep a record of cookies?

I had a rather interesting case of hacking on my ASP.Net MVC website. For this website I had implemented a rather uncomplicated authentication system for my admin area -- an encrypted cookie which had an identifying signature for the member. Whenever the admin visits the website the cookie would be decrypted and signature verified. If ma...

Where can I find "reference barcodes" to verify barcode library output?

This question is not about 'best' barcode library recommendation, we use various products on different platforms, and need a simple way to verify if a given barcode is correct (according to its specification). We have found cases where a barcode is rendered differently by different barcode libraries and free online barcode generators in...

How to catch exceptions from another program (for logging)?

I am working on a tool that monitors a number of applications and ensures they are always running and in a clean state. Some of these applications have unhandled exceptions which do occur periodically and present the 'send crash report' window. I do not have the source code to these applications. Is there any mechanism I could use to ...

Thrift,.NET,Cassandra - Is this is right combination?

I've been evaluating technology stack for developing a social network based application. Below are the stack I think could well suitable for this application type of application: GUI -- ASP.NET MVC, Flash (Flex) Business Services -- Thrift based services One of the advantage of using Thrift is to solve scaling problems that will come i...

Sometimes Explorer_WindowStateChanged does not fire while opening new tab.

I am using Explorer_WindowStateChanged to identified tab change event in IE 7 or IE 8. My problem is, When i open any link in new tab (By right click on link and click on open in new tab), then somtimes Explorer_WindowStateChanged event does not fire and i am not able to detect that a new tab has been opened. Explorer_WindowStateChange...

how to predict which section have to put in critical section in threading

Hi , I am using the console application i used multi threading in the same. I just want to know which section have to put inside critical section my code is : .------------------------------------------------------------------------------. public class SendBusReachSMS { public void SchedularEntryPoint() { try ...