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Data Binding in .net

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I have been toying with data binding in .net for quite some time now. And ever since I started working and analyzing the binding support in .net f/w 2.0, I have always been eager to know: What makes WPF data binding so great that Microsoft showcased it as the biggest driver for WPF and MVVM? Even though the data binding existed in .net framework 2.0, why didn't MS pushed for its use as it did for WPF? The INotifyPropertyChanged interface was introduced in .net framework 2.0 and was fully supported by WinForm binding engine. However, most of my fellow developers are unaware of this fact.  So the fundamental question that arise is why should one go for WPF if all we want is nice Data Binding support and it’s available in .net 2.0? The answer to this question is, MS has introduced an all new Data Bindinding engine in WPF which fixes lots of bugs of WinForm data binding, has a much improved performance. And I think this is enough for any GUI developer to consider switching to WPF
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काहे की दोस्ती

जो खिलखिला के हँसी देख कर  मुझको दुखी देख कर मेरी हँसी जो हो गई चिडचिडी जो दोस्ती हो मतलब पर टिकी वो दोस्ती काहे की दोस्ती जो दारु पीने से पहले रोते रहे जो दारु पी कर भी फ़िर रो पड़े जिन जिन को हम नहीं थे पसंद उन उन से हम क्यों जा भिड़े जो बर्बादी हमारी की हसरत लिये मिलते रहे दिल में नफ़रत लिये जब ज़रुरत पड़ी तो लात मार दी दोस्ती की वो झूठी तस्वीर फाड़ दी वो वहाँ है पड़ी इज्ज़त मेरी जो दोस्तों ने मेरी पूरी उतार दी जो न आई काम समय पर कभी वो दोस्ती काहे की दोस्ती 
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C# Polymorphic types conversion with Generics

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Polymorphism has been interviewer's  delight for ages. I have been taking interviews for quite some time.  And ever since i started preparing question on C# Polymormism, I have been getting surprises. To prepare interview questions, I try writing code, verify it and and then twist the code snippet to make it "interview-able". This blog is to highlight some of the surprises that i have got while preparing the questions.  The motive of this blog is to highlight tricky points to keep in mind while writing overloaded Functions with Generic parameter. To explain the concept, I'll start with this short code snippet and would like readers to predict the output without scrolling down to answer. Code - 1  If you know the output and the reasoning behind it, then you may leave the rest of blog as you probably are better expert than rest of my audience.  And if you are still reading this line it mean
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