Angus Logan : .NET

Disable Button On PostBack (ASP.NET) - also works with validation controls

anguslogan — Thu, 23 Dec 2004 04:13:00 GMT

How many times have you seen the problem where somebody clicks on the Submit button a hundred times? One technique to avoid multiple submissions is to use client side script to disable the button after it has been clicked. Problem is you only want to disable the button if the form is valid and is actually going to PostBack. To get around this call the client side function Page_ClientValidate() to see if the page is valid. If it is you can set a caption on the button, like “Please Wait...“, disable it, and invoke its click event, like in the following code sample:

System.Text.StringBuilder sbValid = new System.Text.StringBuilder();

sbValid.Append("if (typeof(Page_ClientValidate) == 'function') { ");

sbValid.Append("if (Page_ClientValidate() == false) { return false; }} ");

sbValid.Append("this.value = 'Please wait...';");

sbValid.Append("this.disabled = true;");

sbValid.Append("document.all.btnSubmit.disabled = true;");

//GetPostBackEventReference obtains a reference to a client-side script function that causes the server to post back to the page.

sbValid.Append(this.Page.GetPostBackEventReference(this.btnSubmit));

sbValid.Append(";");

this.btnSubmit.Attributes.Add("onclick", sbValid.ToString());

one of the coolest things of all time - Sharepoint to the MAX: Live Communications Server 2005 Search Bot

anguslogan — Sun, 12 Dec 2004 14:33:00 GMT

From Mart Muller's Sharepoint Weblog

---

Yesterday evening we had a technical session with the Tam Tam Business Solution Group. Our goal for this evening was to create a Windows Messenger Bot that could answer questions send using Windows Messenger and Live Communications Server 2005. The challenge, in which each developer had to develop a part of the solution, was a showcase for Sharepoint integration. Way cool!

---

See his article here.

Bad wording by Scott Stewart

anguslogan — Thu, 09 Dec 2004 22:44:00 GMT

Ok he's talking about partial classes but this just sounds wrong:

"My other part of Employee in the DataLayer folder provides the Employee CRUD directly against the Employee's private parts!"

See it at http://dotnetjunkies.com/WebLog/sstewart/archive/2004/12/08/35735.aspx

Technical Demo Toolkit for Microsoft Gold Partners

anguslogan — Wed, 08 Dec 2004 18:35:00 GMT

Via Steve Luper

The Technical Demonstration Toolkit helps you quickly set up demonstration environments to showcase Microsoft software and solutions to your customers.

At the 2004 Worldwide Partner Conference in Toronto, Steve Ballmer promised partners a selection of the best demonstrations that Microsoft uses with customers today. The Technical Demonstration Toolkit includes 66 different demonstrations featuring Microsoft Windows XP, the Microsoft Office System, SQL Server, Exchange Server, SharePoint Portal Server, and more.

Microsoft Gold Certified Partners and Certified Partners will receive the Technical Demonstration Toolkit in the December Partner Monthly Box. More information and additional copies at https://partner.microsoft.com/global/40016133.

The QuickStart Guide to Building Your First BizTalk Server 2004 Application

anguslogan — Tue, 02 Nov 2004 18:44:00 GMT

Luke has written "The QuickStart Guide to Building Your First BizTalk Server 2004 Application " see it here

DotNetNuke 3.0 Announcement & Details

anguslogan — Sun, 10 Oct 2004 18:54:00 GMT

Scott McCulloch has announced some details of DotNetNuke 3.0

See his post at http://lucaslabs.net/blogs/mccullochs/archive/2004/10/10/1113.aspx

Using NAnt to migrate MCMS projects + Mark Daunt is Blogging!

anguslogan — Thu, 07 Oct 2004 03:49:00 GMT

Mark Daunt (MCT + very skilled developer) from DataCogs who I have worked with @ Redland Shire Council on their MCMS project has written an article on Using NAnt to migrate MCMS Projects - See it here.

We origionally investigated Microsoft's BuildIt but for a few different reasons (VS.NET automation being flakey!) it was decided that NAnt was a cleaner solution for MCMS deployment.

Also checkout his blog because he's a serious guru.

>40 hours of ASP.NET WebCasts goodness

anguslogan — Tue, 05 Oct 2004 23:25:00 GMT

Lots and lots of ASP.NET webcasts with some free stuff if you - check out the annoucement at http://blogs.msdn.com/msdnwebcasts/archive/2004/10/05/237958.aspx or go directly to the site at http://www.aspnetwebcasts.com/

.NET Framework 1.1 Service Pack 1 for Windows Server 2003 caused "Server Application Unavailable"

anguslogan — Mon, 04 Oct 2004 02:22:00 GMT

Strange... I just applied .NET Framework 1.1 Service Pack 1 for Windows Server 2003 onto my laptop and didn't reboot after the installation.

The next thing my local web server stoped serving .NET Pages & webservices etc - there were no messages in the event log.

Luckily a reboot saved the day.

Nice trap-for-young-players.

Anyway here's a list of bugs fixed by .NET Framework 1.1.

.NET Framework Service Packs for all !

anguslogan — Mon, 04 Oct 2004 00:58:00 GMT

Thanks to http://blogs.msdn.com/ericgu/archive/2004/08/30/222978.aspx for this information.

Overloading Web Methods

anguslogan — Mon, 04 Oct 2004 00:43:00 GMT

If I ever needed to use overloaded methods over webservices I just changed the method name - but now I found this article 'WebMethods - Reference parameters & Overloading' by Ansil

Below is the section of Overloading Web Methods:

For a language to be said .NET complaint it should be truly object oriented and therefore must support polymorphism. Method overloading is one of the pillars of polymorphism.overloading means methods with same name but diffrent parameters.Just as we overload methods in regular applications we can overload XML WebMethods also.

Let us create two WebMethods, say HelloWorld.The first one takes no parameter and the second one takes one parameters.

[WebMethod]
public string HelloWorld()
{
return "HelloWorld";
}
[WebMethod]
public string HelloWorld(string name)
{
return "HelloWorld " + name;
}

Compile and run it. What do you see in the test page ?

Because the WebMethods can't have the same name,.NET has a mechanism to diffrentiate between the methods from one another.We can do this by using MessageName property of the WebMethod .Change the above web method attribute to the following

[WebMethod (MessageName="HelloWorld")]
public string HelloWorld()
{
return "HelloWorld";
}

[WebMethod (MessageName="HelloWorldWithName")]
public string HelloWorld(string name)
{
return "HelloWorld " + name;
}

Compile it and run it . We will see the methods with the name same as the MessageName property.

The solution with it all!

anguslogan — Mon, 04 Oct 2004 00:10:00 GMT

I am working on a monster solution that is really testing all the integration capabilities of the Microsoft's product range:

Client

Citrix or Terminal Services
- Internet Explorer
- InfoPath

Datastore

SQL Server 2000 Enterprise Edition (clustered)

Custom Interfaces

ASP.NET

Microsoft Products

Server Platform

Windows Server 2003

Development Environment

Microsoft Virtual Server 2005 (4gb ram maxed out)
Virtual Network
All servers Virtualized
All developers Virtualised using Windows XP boxes accessed via Remote Desktop Client
Approx 50gb of Virtual machines

Integration

.NET WebServices

Security

SecureID
Active Directory (2003 native mode)

Other Possible products and/or considerations

Project Server for task tracking and resource planning
BizTalk 2004 for Integration

If this dosen't become a Microsoft Case study I don't know what I'll do !!!