ASP.NET News from Blogger: Hannes Preishuber   Get the feed of: Hannes Preishuber

Total News: 127

Update Visendo SMTP Extender Update

Our team from ppedv (credits to Cosmin) have released the new edtion based on your feedback.Visendo STMP Extender, extends the SMTP Server from Windows 2008 (and R2) to the POP3 protocol. So...

302: this blog will be closed

After nearly 7 years I will discontinue blogging on this site. My resources are limited. You can reach my German blog which is used to support my customers. Looking back to a long an interesting ...

Adhoc testing of .NET RIA Services

Suddenly my Silverlight 3 application breaks during development process. Cause I have installed Visual Studio 2010 a few hours before, I was sure: must be something with 2010. After uninstall and rein...

Open SQL Port for specific IP by ASP.NET Website

We run a public SQL Server on Windows Server 2008 and had a lot of dictionary attacks in the past. To prevent that, do following 1) disable sa user 2) enable Windows Firewall, set a inbound rule ( h...

ASP.NET have left the track?

I am a fan of ASP.NET. I have teached hundreds of peoples, written some books, have been MVP for that topic. But now I have doubts. Today I try to build a special kind of user navigation experience. I...

Silverlight Twitter Client with authentication

Its not easy to access a cross domain RSS feed. But it is nearly impossible to do same with authentication. HTTP Client stack and HTTP browser stack in Silverlight 3 and beyond does not support authen...

Silverlight 3 Visual Studio 2008 Designer Preview

Documentation says that Design Preview in Silverlight 3 Tools for Visual Studio 2008 is away. The preview with Silverlight 2 was only read only and sucks. OK is bad but no preview is even worse. When ...

Silverlight 3 Beta to RTW changes

It is very important that your applications are ready for Silverlight 3. If you have developed with the Beta bits you have to do a lot of changes to get ready for RTW. There exists a document changes....

ADO.NET Dataservice This collection already contains an address with scheme http PartII

You may have searched for This collection already contains an address with scheme http.  There can be at most one address per scheme in this collection. Parameter name: item I have written...

Silverlight 2.0 Compression Rate

After a short discussion in silverlight forums with a guy who have only 19kb line, I checked out compression for XAP files. A XAP is a zipped package of DLLs and resources. With winrar installed you c...

B# and Silverlight Isolated Storage

I am a VB developer. As most of expert coder are using C# I must step forward. B# is the language which can be written by VB guys and make it readable for C# gurus. Today's topic is the data store of ...

Input Validation with Silverlight

I miss ASP.NET. With the 2.0 Microsoft had the world best technology for creating applications of all kind. Small or large, ASP.NET 2.0 have features for all. Now several years later we have Silverlig...

Rownumber in Silverlight Datagrid or Listbox

My next sample uses a converter to show a line number within a datalist. I am not really satisfied with the solution, perhaps I will find in future a better way. But the concept is quite interesting a...

get ID inside a Silverlight Datagrid when Button clicked

This blog pots describes a datagrid and a encapsulated custom button for each row. I want to show two methods how to get information about the underlaying data of the row. I use a ado.net data servic...

Silverlight Multiselect Listbox

The Listbox control of Silverlight 2 have no multi selection. Datagrid have! I want to show how to build a Listbox with Checkboxes and iterate at the end through all items an see if they are checked. ...

Silverlight and ADO.NET Dataservices RTW changes

Till the days of Silverlight RC0 (so yesterday ;-)) we had to generate the proxy class for ado.net dataservice service by hand like: dataSvcUtil.exe /out:dsProxy.vb /language:VB /uri:http://localhost...

ADO.NET Dataservices: Fancy Error Part II

Today my first Silverlight 2 application goes live. It is a customer feedback app for the ADC 08 conference. After successfully installed and tested a few hours everything went well. But then data was...

ADO.NET Dataservices:This collection already contains an address with scheme http

I have deployed a Silverlight 2 application which uses ADO.NET Dataservices to a IIS 6. Problem #1: you see nothing in Browser register MIME Type in IIS and restart IIS Problem #2: no data is sow...

I Love VB: Silverlight UI Creation with XML Literals

My actual problem is to develop a image (object) carousel. There are a lot of details to take care about. One of them is to create images dynamically with a great UI like border or shadow. First I sta...

Silverlight 2.0 plugin ID or not ID

My original problem was a call from HTMl via Jscript to the internals of a Silverlight plugin. My code fails I had huge problems to find the issue cause debugging doesnt help and jScript doesnt suppor...

Bind with Expression Blend: cannot create Instance Exception

Databinding with XAML is a lot of work. There is no drag drop table wizard, dont search for it. Expression Blend (2.5) have a little bit more automatic support for binding Objects. When Blend is in De...

set as start page: Silverlight XAML

I really miss the option set as start page in Visual Studio Explorer for Silverlight Projects. If I have time in the next days (;-))Ii will write visual studio extension for that purpose. In fact it ...

fast and furios Silverlight Databinding with Gridview and embedded XML Data Resources

I am currently writing a Silverlight 2.0 course. I always try to focus on the problem and reduce the code overhead. For my Module Databinding with Silverlight 2.0 I try to include the data as raw xm...

IE 8 simultaneous connections changed

Small note. The Internet Explorer 8 have increased the amount of connections to the same domain to 6. ( was before 2) Can have some effects in AJAX callbacks, like Web Service calls.   http:...

reveres engineering of Silverlight XAP files

In my last post Michael Schwarz noticed  that search engine spiders can theoretically  index xap files. Silverlight 2.0 creates a xap file where dlls, images, videos and xml are included...

What I miss in Silverlight 2.0

No, I do not miss a particular control or class. I am thinking about principle design issues. Search Engines The extension for Silverlight applications is xap.  The content is kind of binary. A...

fixed: asp.net gridview dataformatstring

A old problem was in VS 2005 and ASP.NET 2.0 that you have to set htmlencode=false to enable the dataformatstring. Since SP1 of VS 2005 ( and ASP.NET 2.0 ) there is a new property in town HTMLEncodeF...

what I miss in LINQdatasource

ASP.NET SQLDatasource control was for me a super productive tool in the past. There are some small features missing like a more elegant data paging. ASP.NET 3.5 bring a new control LinqDatasource whic...

Visual Studio IIS 7 and WebDAV

Visual Studio 2008 have still no native WebDAV support. On the other hand Microsoft is stopping Frontpage Server Extensions Development. Both of this web publishing protokolls are *not* implemented in...

360 Visual Studio 2008, where we are?

I attended as speaker the Bigdays Austria. My session was 360 Visual Studio which I made with Max Knor from Microsoft. Our goal was to give in 70 minutes a complete overview and to code five samples&n...

AJAX drag& drop challenge: science fiction with web.preview

Drag and drop is one of the missing features from the final ASP.NET 2.0 AJAX Extensions 1.0 (what a name). On my research work I figured out several ways to implement drag and drop and add profile sup...

AJAX drag drop Challenge: new with profile support

I have written a proof of concept blog post about drag and drop with AJAX toolkit. In my second part I will take a look at the possibility's to store the new position. I earlier builds toolkit control...

the "it's free" problem: caching of images

a long time ago journalists were paid for investigate in story's. Today content is almost free. Blogger's dominate the world. The problem is also if 99% of the information is true and useful, 1% is wr...

LinqDatasource and Datapager Rocks

With small words. ASP.NET 3.5 Datapager support automatic optimized SQL paging for sql server 200 and 2005 with LINQDatasource. SQL 2005 SELECT COUNT(*) AS [value] FROM [Customers] AS [t0] -- Conte...

'ListView' is ambiguous in the namespace 'System.Web.UI.WebControls'.

When you have Visual Studio 2008 and ASP.NET 3.5 Extensions installed you may run in following error. BC30560: 'ListView' is ambiguous in the namespace 'System.Web.UI.WebControls'. In my case, t...

LINQ to SQL HOL VB.NET Code

Microsoft offers a hands on lab (HOL) which guides you step by step through creation of a application using LINQ. As always, somebody forgot to show the VB code. Here it is Imports System.Data.Linq I...

AJAX Drag & Drop Challenge

Drag and drop is typically feature from windows application. With Web application the user is loosing it. Missing Drag&Drop is one of the top ranked features for better usability. The new Web 2.0...

PDC 2008

October 2730, 2008Pre-conference October 26, 2008Los Angeles, California from http://blogs.msdn.com/pdc/rss.xml  It is quite interesting that i subscribed to that feed for more than a year. 9 mon...

Streaming and possibility's with Microsoft plattform

in my last post, Scott have written  a comment "hmmm no". And this man know what he says. So its enough motivation to dig deeper into streaming and of course Silverlight media. My prior post de...

httpfiddler and Silverlight streaming

If you run httpfiddler, streaming like Silverlight streaming service, is broken. Since version 2, which is .net based, the new timeline extension is available. When you right click in the Timeline tab...

the truth about Silverlight Streaming

Just some quick note's about the silverlight streaming and the free service silverlight.live.com. 1) Silverlight media player doesn't support real streaming like media player does. Also if you can req...

prevent autoplay with Silverlight Streaming Service

With Microsoft Expression Encoder you can create Silverlight Media Web Projects. This projects can be zipped and uploaded to silverlight streaming service. Then you can embed the video in your we...

Listview and EmptyItemtemplate

 There exists only a few articles (Andreas Kraus and Rick Strahl) which describe the useage of listview and datapager. This both controls are "new" to ASP.NET 3.5. The truth is if you use it yo...

upcomming Talks: Silverligth and Silverlight

I will do a talk in Leipzig on Sept 26. The .net user group Leipzig organize the .NET summercamp. I will give a brief overview in (only) 45 minutes on silverlight. But will be there lon...

Microsft Blend August and Silverlight Motion Path

after heavy investigating i can definitly say, Expression Blend does not support creation of motion path. I am quite shure i have done that before. Only for real WPF application the menu option (Objec...

next Wave Silverlight RC:

there is not only Visual Studio 2008 in pipline. Also Silverlight 1.0 is Release Candiate, Expression Blend August and so on From http://blogs.msdn.com/tims/archive/2007/07/27/silverlight-1-0-rc1-is-...

Where is my timeline?

With Silverlight web applicationes become a 4th dimenson: the time. Animations are changing elements over a timeline. In my prior post i showed how to build a slot machine with rotation numbers. I sim...

Silverlight Slot Machine

 I have build in several hours following small slot machine.     I have written a story board by hand and used Blend, SDK, Orcas and MSDN to build it. There are ~1000 lines of XAML and ...

bring to back a Shape in Silverlight

At my work with Expression Blend 2 May Preview i run into a small issue that the right click menu -Bring to back- doesnt work in some scenarios. Against first idea, it's not a attribute and you have n...

Dynamic rendering of menu Control with rendercontrol

A customer reported a issue with creating a Menu ASP.NET Server control included a custom control on DevTrain.de.  Every Server Control have method RenderControl which creates the HTML and s...

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