ASP.NET,C# - Jeff Widmer's Blog

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How to switch between HTTP and HTTPS in ASP.NET MVC2: ASP.NET MVC2 has the new RequireHttpsAttribute that you can use to decorate any action to force any non-secure request to come through HTTPS (SSL). It can be used as simply as this: [RequireHttps] public ActionResult LogOn() { ..... } Now any request...
Posted 19 August 2010 10:00 PM by Jeff Widmer | 18 comment(s)
Filed under: ASP.NET, C#, ASP.NET MVC, HTTPS, SSL

How to 301 Permanent Redirect in ASP.NET: In the next release of the .NET Framework (.NET Framework 4.0) there is a new response method for permanently redirecting a request: Response.RedirectPermanent . You can see the Beta MSDN documentation for Response.RedirectPermanent here . This will automatically...
Posted 31 January 2010 06:32 AM by Jeff Widmer | 8 comment(s)
Filed under: ASP.NET, C#, SEO

Line-breaks and carriage returns (\r \n) are invalid in email subject: I received this exception when sending an email using System.Net.Mail.MailMessage: "The specified string is not in the form required for a subject." System.ArgumentException: The specified string is not in the form required for a subject. ...
Posted 13 January 2010 05:39 AM by Jeff Widmer | 3 comment(s)
Filed under: .NET, ASP.NET, C#, System.Net.Mail.MailMessage

Handle the button click event from an ASP.NET ListView control: Here is how you can handle the event of a button from within an ASP.NET ListView control. Add your button to the ListView Template like you would any other control: <asp:ListView ItemPlaceholderID="Test" runat="server" ID="ListView1"...
Posted 08 December 2009 03:48 PM by Jeff Widmer | 4 comment(s)
Filed under: ASP.NET, C#, ListView

Generating a random strong password: You can use the ASP.NET Membership provider to generate a new random strong password. In the past I have usually either rolled my own authentication system or integrated an asp.net authentication system into an existing application and therefore I did...
Posted 07 November 2009 09:40 PM by Jeff Widmer | with no comments
Filed under: ASP.NET, C#, ASP.NET Membership

Asynchronously sending a System.Net.Mail.MailMessage in C#: When sending an email in your ASP.NET application there are times when you do not want the user experience to slow just to wait for an email to be sent. The code sample below is how to send a System.Net.Mail.MailMessage asynchronously so that the...
Posted 12 October 2009 09:53 PM by Jeff Widmer | 15 comment(s)
Filed under: ASP.NET, C#

How to disable an ASP.NET button when clicked: Scenario: user clicks a button in your ASP.NET page and you want to disable it immediately using javascript so that the user cannot accidentally click it again. Originally I thought this was going to be simple by using the onclientclick property of the...
Posted 06 October 2009 09:32 PM by Jeff Widmer | 11 comment(s)
Filed under: ASP.NET, C#

Credit Card Expiration Date DropDownList Sample Code: The other day I needed to create a credit card input form including the drop down lists for the credit card expiration month and year. I started to write the code to populate the month and year drop down lists and I wanted to make them dynamic so...
Posted 08 September 2009 09:02 PM by Jeff Widmer | 9 comment(s)
Filed under: ASP.NET, C#, Sample Code

nvarchar(max) parameters need the size set to -1: SQL Server 2005 supports a new data type nvarchar(max). This is one of the new max datatypes that are to replace ntext, text, and image in a future version of SQL Server (according to SQL Server Books Online) but you should start using them now. I recently...
Posted 15 August 2008 05:00 PM by Jeff Widmer | 18 comment(s)
Filed under: SQL Server, .NET, ASP.NET, C#, Visual Basic

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