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MVC MVC stands for  Model-View-Controller  is an architectural pattern that seperates in to three logical components.  ASP.NET MVC framework is a lightweight, highly testable presentation framework that is integrated with the existing ASP.NET features 1)Model - Data related logic(Works b/w View and Controller) like db operations 2)View - UI logic(Final User Interact) 3)Controller - Business logic(Interface between Model and View) Versions in Asp.net MVC MVC Version Visual Studio .Net Version Release date Features MVC 1.0 VS2008 .Net 3.5 13-Mar-2009 MVC architecture with webform engine Routing HTML Helpers Ajax Helpers Auto binding MVC 2.0 VS 2008, .Net 3.5/4.0 10-Mar-2010 Area Asynchronous controller Html helper methods with lambda expression DataAnnotations attributes Client side validation Custom template Scaffolding MVC 3.0 VS 2010 .Net 4.0 13-Jan-2011 Unobtrusive javascript validation Razor view engine Global filters Remote validation Depend

VBA - Excel Macros VBA  (Visual Basic for Applications) is the programming language of Excel and other Office programs. 1 Create a  Macro : With Excel  VBA  you can automate tasks in Excel by writing so called  macros . ... A loop in Excel  VBA  enables you to loop through a range of cells with just a few codes lines Step 1  − First, enable 'Developer' menu in Excel 20XX. To do the same, click File → Options. Step 2  − Click ‘Customize the Ribbon’ tab and check 'Developer'. Click 'OK'. Step 3  − The 'Developer' ribbon appears in the menu bar. Step 4  − Click the 'Visual Basic' button to open the VBA Editor. Step 5  − Start scripting by adding a button. Click Insert → Select the button. Step 6  − Perform a right-click and choose 'properties'. Step 7  − Edit the name and caption as shown in the following screenshot. Step 8  − Now double-click the button and the sub-procedure outline will be displayed as shown in the fol

Headaches are a common condition that many people deal with on a daily basis. To get rid of Headache, Here are the 5 tips that helps you in  Natural  way. 1. Drink Water Inadequate hydration may lead you to develop a headache. In fact, studies have demonstrated that chronic dehydration is a common cause of tension headaches and migraines. Thankfully, drinking water has been shown to relieve headache symptoms in most dehydrated individuals within 30 minutes to three hours. What’s more, being dehydrated can impair concentration and cause irritability, making your symptoms seem even worse. To help avoid dehydration headaches, focus on  drinking enough water  throughout the day and eating  water-rich foods . 2. Take Some Magnesium Magnesium  is an important mineral necessary for countless functions in the body, including blood sugar control and nerve transmission. Interestingly, magnesium has also been shown to be a safe, effective remedy for headac

CIDR is an acronym for Classless Inter-Domain Routing CIDR is also known as supernetting, as it effectively allows multiple subnets to be grouped together for network routing.  CIDR specifies an IP address range using a combination of an IP address and its associated network mask. CIDR notation uses the following format: xxx.xxx.xxx.xxx/n where n is the number of (leftmost) '1' bits in the mask. https://erikberg.com/notes/networks.html IP Address Classification Subnet Mask CIDR Prefix Total IP's Usable IP's Number of Class C networks 255.255.255.255 /32 1 1 1/256th 255.255.255.254 /31 2 0 1/128th 255.255.255.252 /30 4 2 1/64th 255.255.255.248 /29 8 6 1/32nd 255.255.255.240 /28 16 14 1/16th 255.255.255.224 /27 32 30 1/8th 255.255.255.192 /26 64 62 1/4th 255.255.255.128 /25 128 126 1 half 255.255.255.0 /24 256 254 1 255.255.254.0 /23 512 510 2 255.255.252.0 /22 1024 1022 4 255.255.248.0 /21 2048 2046 8 255.255.240.0 /20