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WP7 Background Agent Pitfalls and App/Agent Synchronization
Peter Meinl - IT Architect & Lateral Thinker

To put this post into perspective see Windows Phone 7 App Development Helpers and Time Savers. Background agents are a very important feature for WP7 apps. Agents allow you to run code in background while the app is not running – and also while it is running. Some pitfalls you should bear in mind: Beware of misleading agent memory usage reported under the debugger. Create an appropriate VS solution structure to comply with unsupported APIs. Web request default timeouts might be too long for agent duration constraint. App/Agent communication must be synchronized. VB.NET agent template bug. Misleading agent memory usage under the debugger PeriodicAgents have memory limit of 6MB. Agent duration and memory constraints are not enforced when debugging. With the debugger attached DeviceStatus reports a way higher memory usage then without the debugger. For an empty PeriodicTask DeviceStatus.ApplicationPeakMemoryUsage reports 3.5 MB with the debugger and 1.8 MB without the debugger. To g

.NET developers for product based company in Bangalore
Immediate jobs at Centris Infotech Services

Urgently looking for .NET professionals with (c#, asp.net and oops) 4-5 years of experience for reputed product development company in Bangalore on permanent role. 15 positions available and should be ready to join in 7 days. Forward your updated resume to rajesh.shetty@centrisinfotech.com

Fetch list of property name and value from any object
amitpatelit

In any of the scenario where we have to wrote a common function where we can use any of the object type but all have set of common property so we need to fetch those properties. In one of the my scenario where I am creating common data log function where what ever object I pass to this function and that function is saving all properties value in database log table with property and value. This kind of logic we can say as reflation. Below is the sample code for this. public void GetPropertiesFromObject(object oObject) { foreach (PropertyDescriptor descriptor in TypeDescriptor.GetProperties(oObject)) { string name = descriptor.Name; string value = ""; if (descriptor.GetValue(oObject) != null) { value = descriptor.GetValue(oObject).ToString(); } //use this name and value if (descriptor.Attributes[4].GetType().Name == "DataMemberAttribute") { this.InsertRequesObjectParameter(this.ID, name, value, false, 1); } } } To run this code need to use below namespace System.Compo

MVVM reloaded
Get Released

I have just noticed a discussion on a small article at InfoQ: http://www.infoq.com/news/2011/12/mvvm-frameworks-net Jonathan Allen lists a couple of signs that your MVVM design may have gone wrong. Here are the points briefly: 1. You have a model and a view-model with the same name. 2. You have a view and a view-model with the same name. 3. You have no code behind. 4. View-models are listening to property changed notifications I don’t want to defend or argue about these points, rather it got me realized that I also had some concepts wrong at the start. Graphics is a designer issue. XAML separates the design and development processes completely. Isn’t this that would bring tremendous advantages after all. The dream is that Graphic Designers work on XAML and developers work on code. First of all, Graphic designers did not learn the new tool, language. The reason is that the concepts of graphic designs are so different from the concepts of application UI that designers can

Face tracking with Kinect SDK 1.5
Chanmingman's Blog

Many users out there have been asking how to do face tracking in Xbox Kinect or Windows Kinect. Download the Kinect SDK 1.5 and Kinect Toolkit. You must download the Toolkit because the face tracking sample is in the Toolkit. Resources: http://msdn.microsoft.com/en-us/library/jj131039

Bank account comparing as well as management services to make banking much more useful
fredrickent1030

Traditional bank is a crucial patrocinador at present. By means of banking we are able to invest as well as save the money we now have earned during our life time or in our career. Bank can also be possessed loans and debits along with fixed tissue and recurring debris which can make valuable interest which are levied on them. Consequently, financial and keeping a merchant account is actually important not only for share holders or business person also for a person individual. Banking produces the revenue and also gross income of the person and also has the capacity to store and preserve the cash for foreseeable future use. Presently there are some options in order to banking and with increasing commercialization, they have increase the scope for making profits upon guaranteed checking accounts for the concerned account holder. Within the earlier days, obtaining the money and controlling an account or a join accounts was relatively more difficult. But in the current time period, the cr

Using progressindicator in WP7
for frens

Somewhere I read about a indicator for showing progress other than progressbar newly introduced in WP 7.5. Here’s a sample how we can use it: ProgressIndicator indicator = new ProgressIndicator(); indicator.IsIndeterminate = true; indicator.Text = "showing progress....."; indicator.IsVisible = true; indicator.Value = 40; SystemTray.ProgressIndicator = indicator; For this we need to add a namespace: using Microsoft.Phone.Shell;

Find the Most Time Consuming Code in your SQL Server Database
dotnetwithrajiv

This post will demonstrate how to find T-SQL code (SQL Server 2005/2008) that takes the most time to execute. Note that a time consuming code may not necessarily be inefficient; it also depends on the volume of data being processed. --Top 10 codes that takes maximum time select top 10 source_code,stats.total_elapsed_time/1000000 as seconds, last_execution_time from sys.dm_exec_query_stats as stats cross apply (SELECT text as source_code FROM sys.dm_exec_sql_text(sql_handle)) AS query_text order by total_elapsed_time desc

Rapidity for Improvements
Wir sprechen Online.

Is the idea of rapidity for improvements in direct conflict with qualities of life? http://eicker.at/Hyperconnectivity

Hello world!
Chronicles of a Developer

This blog is about posting tutorials of my mobile/web applications, the obstacles I’m facing along the way and how I manage to get past them. I will mostly post .NET,python,C++ and Java development oriented material! I hope you’ll find this blog useful and enjoy this…geek trip! Kostis!

Windows Phone 7 App Development Helpers and Time Savers
Peter Meinl - IT Architect & Lateral Thinker

Für mehr Informationen zu diesem Thema in Deutsch siehe meine kommenden Artikel “Phone, Schweiß und Tränen” und “Aus App-Gründen ans Licht” im dotnetpro Magazin, Ausgaben 9 und 10/2012. The Windows Phone is a fascinating app platform and Microsoft’s Visual Studio / Blend toolset is extremely powerful, but Silverlight can be a huge time sink and developing for the Windows Phone adds some. To  help streamlining your WP7 app development I am sharing some helpful experiences from developing my Currencies app. Download sample code. View Currencies demo video. Balsamiq UI Sketch and Screenshot of Published App App/Agent Architecture Links to all posts of this series [will add the missing posts shortly]: User Experience App Architecture No MVVM Development Tools Fast Launch and Fluid UX Asynchronous Web Requests Use Tracing to understand your Apps Event Sequences Good Error Handling Agent Pitfalls and App/Agent Synchronization Keypad (SIP) Tips