[Fiddler] Connection to localhost. failed.
Exception Text: No connection could be made because the target machine actively refused it ::1:80

This can be fixed by disabling IPv6 in Fiddler:

1. Go to Fiddler, then Tools > Fiddler Options.
2. Uncheck "Enable IPv6 (if available)".

Tracing should now work.

http://mycomputername/

or

http://localhost./

((TextBox) Page.FindControl("TxtName")).Text = "Some name";

Since this method returns a Control type, we must cast it to it’s actual type before we can access any of it’s members. A way to improve this code, is to create a new generic FindControl method. Since all the controls in ASP.NET such as Page, Button, TextBox, inherits from the Control class, we can make this method an extension method. By doing this, our method can be accessed the same way as the non-generic FindControl method:

Page.FindControl<TextBox>("TxtName").Text = "Some name";

This code is tidier and easier to read. Here is the code for the extension method:

public static class ControlExtensions
{
	public static T FindControl<T>(this System.Web.UI.Control control, string id)
		where T : System.Web.UI.Control
	{
		return (T) control.FindControl(id);
	}
}

Template file event wiring - not recommended:

<asp:Button runat="server" ID="BtnSave" OnClick="Save" Text="Save" />

Code behind event wiring - recommended:

protected override void OnInit(EventArgs e)
{
	base.OnInit(e);

	BtnSave.Click += new EventHandler(Save);
}

• In 2002 I was offered a job as a developer just before finishing a college degree in computer science. I finished the college degree, but later regretted that I didn’t finish at least a Bachelor degree. 1,5 years ago I decided it was time to get the degree. I took the subjects needed part time, as I still had my full time job. My last exam was finished in December. Feels great!
• Learned and worked intensively with Windows Communication Foundation (WCF) and SOA architecture both at my full time job and as part of my Bachelor thesis.
• Learned and used Test Driven Development (TDD) together with principles and design patterns optimized for this such as SOLID principles with dependency injection (DI) and dependency injection containers (IOC). My preferable IOC so far has been Castle Windsor.
• Slowly started with jQuery.

Goals for 2010:

• Learn ASP.NET MVC.
• Learn object oriented JavaScript, Microsoft AJAX and jQuery.
• Learn the basics of Silverlight.
• Get up to date on the ADO.NET Entity Framework and NHibernate.
• Write two blog posts per month.
• Read a new technology book every 3 months.
• Improve on creating loosely coupled architecture.
• Create 3 new open source projects and contribute to 1 existing open source project.
• Become a Microsoft Certified Professional Developer (MCPD).

var _mouseX = 0;
var _mouseY = 0;

jQuery(document).ready(function()
{
	$().mousemove(function(e)
	{
		_mouseX = e.pageX;
		_mouseY = e.pageY;
	});
})

The variables _mouseX and _mouseY will at all times have the updated mouse coordinates.

In the application, do File > Add Service, enter the service URL and click OK. You will now see the available service operations. Click on any operation, enter a value for each parameter and click Invoke. The result will be displayed in the response frame.

public static class ControlExtension
{
	public static T FindControlRecursive<T>(this Control container, string id)
			where T : Control
	{
		if (container.HasControls())
		{
			T foundControl = null;

			foreach (Control control in container.Controls)
			{
				if (control.ID == id && control is T)
					foundControl = (T) control;
				else
					foundControl = FindControlRecursive<T>(control, id);

				if (foundControl != null)
					return foundControl;
			}
		}

		return null;
	}
}

Usage:

var control = Page.FindControlRecursive<TextBox>("TxtName");

Excel has detected that 'xxx.xls', is a SYLK file. Either the file has errors or it is not a SYLK file format. Click OK to try to open the file in a different format.

After some research it turns out this problem occurs if the first two letters in the file content is ID (in uppercase). The only way to get rid of this error message is therefore to not use ID in uppercase (Id, id is ok), or change it to something else.