Step towards SharePoint

http://msdn.microsoft.com/en-us/library/ms460194.aspx

Visual Studio 2012 --> SharePoint 2013 Project -->Right Click on the Project ---> Add New Item--> Empty  Element <? xml version = " 1.0 " encoding = " utf-8 " ?> < Elements xmlns = " http://schemas.microsoft.com/sharepoint/ " >   < CustomAction   Id = " NewID "   GroupId = " SiteActions "   Location = " Microsoft.SharePoint.StandardMenu "   Sequence = " 2000 "   Title = " My Link "   Description = " Create My Link " >     < UrlAction Url = " ~/_layouts/15/Test.aspx " />   </ CustomAction > </ Elements > Hope this will helps you... Happy Coding...

                   The CrossListQueryInfo object uses the CrossListQueryInfo object to get the cached results or, if there are no cached results available, it performs a cross-list query to the database and then caches the results for future use .        CrossListQueryInfo clqi = new CrossListQueryInfo ();                         clqi.Query = "<OrderBy><FieldRef Ascending=\"FALSE\" Name=\"Title\" /></OrderBy><Where><BeginsWith><FieldRef Name=\"Title\" /><Value Type=\"Text\">Test</Value></BeginsWith></Where>" ;                         clqi.ViewFields = "<FieldRef Name=\"Title\" /><FieldRef Name=\"ContentType\"...

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string webAppUrl = "Your URL" ;                 string myBlockFileType = "dll" ;                     Uri myUri = new Uri (webAppUrl);                     SPWebApplication myWebApp = SPWebApplication .Lookup(myUri);                     Collection< string > blockFileTypes = myWebApp.BlockedFileExtensions;                     blockFileTypes.Add(myBlockFileType);                     myWebApp.Update(); Hope this will helps ...

scenario :   Display the image in the asp Image control while uploading by using Javascript...   Here you go with the solution..... function GetImage(field, rowIdx, col) {                           var cellValue = 0;             var currValue = 0;               rowIdx = parseInt(rowIdx) + 1;             var objGridView = document.getElementById( ' <% =newGrid.ClientID %> ' );             cellValue = objGridView.rows[rowIdx].cells[3].children[0];              cellValue1 = objGridView.rows[rowIdx].cells[3].children[1].value;       ...

Here you go for getting values from the Calculated column. SPFieldCalculated  month = ( SPFieldCalculated )oitem.Fields[ "Month" ]; SPFieldCalculated  year = ( SPFieldCalculated )oitem.Fields[ "Year" ]; lblOrderConformation.Text =  "ORDER CONFIRMATION IN - "  + month.GetFieldValueAsText(oitem[ "Month" ]) +  " "  + year.GetFieldValueAsText(oitem[ "Year" ]); Hope this will help you ....