Add Button to sharepoint Ribbon control using visual studio 2012

In this task, you will add a custom action to the ribbon of all Document Libraries to launch the App.

1. In Visual Studio, right click the HelloApp node and select AddØNew Item from the Context menu.
2. In the New Item dialog, select Ribbon Custom Action.
3. Name the item Launcher and click Add.

Create Client Web Part to the App using visual studio 2012

In this task, you will add a Client Web Part and code it. This web part can be used on pages outside of the App to add functionality to the hosting SharePoint site.

• Add a Client Web Part
• In the Solution Explorer, right click the HelloApp project node and select Add-->New Item from the context menu.
• In the Add New Item dialog, select Client Web Part.
• Name the new item MyClientWebPart and click Add.

Creating a Custom List using Visual studio 2012:

In this exercise, you will work through the basics of creating, testing and debugging a custom list type using the new list designer in Visual Studio 2012.
Download:  https://sites.google.com/site/sasivalipireddy/home/Create custom list using VS2012.pdf 

1. Launch Visual Studio 2012.

2. Create a new SharePoint 2013 – Empty Project and name this new project CustomListSolution. Click OK on the New Project dialog.

Create SharePoint list from Visal Studio2012:

In visual Studio 2012, separate tool called “Lists” introduced to create the lists and libraries in more convenient way. Here we can create both customizable and non-customizable lists.

• Customizable lists means In addition to we can add/create existing/new fields, views etc. with it.
• Non-customizable lists means it’s just create a new list.

How to check if a list exists or not in SharePoint

It’s a very common programming practice to check our newly created list already exists in the specified web or not? Below code will help you on this scenario.

Before adding column(field) to the specified list it’s better to check whether that lists exists or not and new created field already exists or not? In my code, I am checking all these conditions.