Custom site page, add to pages library & set as default SharePoint2013 Home/Welcome page

Step1: Add module to the Project, Rename sample.txt as myPage.aspx.

aspx code goes here... change CodeBehind and Inherits once you add Code behind file in step2...

<%@ Assembly Name="$SharePoint.Project.AssemblyFullName$" %>

<%@ Assembly Name="Microsoft.SharePoint, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c"%>

<%@ Page Language="C#" CodeBehind="PageName.aspx.cs" Inherits="ProjectName.ModuleName.PageName, $SharePoint.Project.AssemblyFullName$" MasterPageFile="~masterurl/default.master"      MainContentID="PlaceHolderMain" meta:webpartpageexpansion="full" meta:progid="SharePoint.WebPartPage.Document" %>

<%@ Import Namespace="Microsoft.SharePoint.WebPartPages" %>

<%@ Register Tagprefix="SharePoint" Namespace="Microsoft.SharePoint.WebControls" Assembly="Microsoft.SharePoint, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>

<%@ Register Tagprefix="Utilities" Namespace="Microsoft.SharePoint.Utilities" Assembly="Microsoft.SharePoint, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>

<%@ Import Namespace="Microsoft.SharePoint" %>

<%@ Assembly Name="Microsoft.Web.CommandUI, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>

<%@ Register Tagprefix="WebPartPages" Namespace="Microsoft.SharePoint.WebPartPages" Assembly="Microsoft.SharePoint, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>

<asp:Content ContentPlaceHolderId="PlaceHolderPageTitle" runat="server">

       <SharePoint:ProjectProperty Property="Title" runat="server"/> - <SharePoint:ListItemProperty runat="server"/>

</asp:Content>

<asp:Content ContentPlaceHolderId="PlaceHolderPageImage" runat="server"><SharePoint:AlphaImage ID=onetidtpweb1 Src="/_layouts/15/images/wiki.png?rev=23" Width=145 Height=54 Alt="" Runat="server"/></asp:Content>

<asp:Content ContentPlaceHolderId="PlaceHolderAdditionalPageHead" runat="server">

       <meta name="CollaborationServer" content="SharePoint Team Web Site" />

       <SharePoint:ScriptBlock runat="server">

       var navBarHelpOverrideKey = "WSSEndUser";

       </SharePoint:ScriptBlock>

       <SharePoint:RssLink runat="server"/>

       </asp:Content>

<asp:Content ContentPlaceHolderId="PlaceHolderMiniConsole" runat="server">

       <SharePoint:FormComponent TemplateName="WikiMiniConsole" ControlMode="Display" runat="server" id="WikiMiniConsole"/>

</asp:Content>

<asp:Content ContentPlaceHolderId="PlaceHolderLeftActions" runat="server">

       <SharePoint:RecentChangesMenu runat="server" id="RecentChanges"/>

</asp:Content>

<asp:Content ContentPlaceHolderId="PlaceHolderMain" runat="server">

    <asp:Label ID="lblmsg" runat="server" ForeColor="Blue"></asp:Label>

       <span id="wikiPageNameDisplay" style="display: none;" runat="server">

              <SharePoint:ListItemProperty runat="server"/>

       </span>

       <span style="display:none;" id="wikiPageNameEdit" runat="server">

              <asp:TextBox id="wikiPageNameEditTextBox" runat="server"/>

       </span>

       <SharePoint:VersionedPlaceHolder UIVersion="4" runat="server">

              <SharePoint:SPRibbonButton

                     id="btnWikiEdit"

                     RibbonCommand="Ribbon.WikiPageTab.EditAndCheckout.SaveEdit.Menu.SaveEdit.Edit"

                     runat="server"

                     Text="edit"/>

              <SharePoint:SPRibbonButton

                     id="btnWikiSave"

                     RibbonCommand="Ribbon.WikiPageTab.EditAndCheckout.SaveEdit.Menu.SaveEdit.SaveAndStop"

                     runat="server"

                     Text="edit"/>

              <SharePoint:SPRibbonButton

                     id="btnWikiRevert"

                     RibbonCommand="Ribbon.WikiPageTab.EditAndCheckout.SaveEdit.Menu.SaveEdit.Revert"

                     runat="server"

                     Text="Revert"/>

       </SharePoint:VersionedPlaceHolder>

      

       <WebPartPages:WebPartZone runat="server" ID="Bottom" CssClass="ms-hide" Title="loc:Bottom"><ZoneTemplate></ZoneTemplate></WebPartPages:WebPartZone>

</asp:Content>

Step2: select the module and add new Item and add a code file.

ð  Add System.web dll

Make a class as a public and inherit from Webpartpage

Ex:  public class MyPage : WebPartPage

Add page load method if you want and to create any control then create a global object.

Ex:           protected Label lblmsg;

        private void Page_Load()

        {

     }

Open the elemnts.aspx

<Elements xmlns="http://schemas.microsoft.com/sharepoint/">

  <Module Name="TestModule"  Url="Pages">

    <File Path="ModuleName\MyPage.aspx" Url="MyPage.aspx" Type="GhostableInLibrary" IgnoreIfAlreadyExists="FALSE" ReplaceContent="TRUE"/>

  </Module>

</Elements>

Add Feature Receiver to set myPage as HomePage.

public static void setMyPageAsWelcomePage(SPWeb webElevated)

        {

            SPFolder pagesFolder = null;

            webElevated.AllowUnsafeUpdates = true;

            if (PublishingWeb.IsPublishingWeb(webElevated))

            {

                PublishingWeb publishingWeb = PublishingWeb.GetPublishingWeb(webElevated);

                if (publishingWeb != null)

                {

                    SPFolder rootFolder = webElevated.RootFolder;

                    try

                    {

                        pagesFolder = publishingWeb.PagesList.RootFolder;

                    }

                    catch (Exception ex1) { }

                    try

                    {

                        if (rootFolder != null)

                        {

                            if (pagesFolder != null)

                            {

                                string newWelcomePageUrl = publishingWeb.PagesList.Title + "/" + "MyPage.aspx";

                                rootFolder.WelcomePage = newWelcomePageUrl;

                                if (newWelcomePageUrl.StartsWith(pagesFolder.Url, StringComparison.OrdinalIgnoreCase))

                                {

                                    pagesFolder.WelcomePage = newWelcomePageUrl.Substring(publishingWeb.PagesList.RootFolder.Url.Length + 1);

                                    pagesFolder.Update();

                                }

                                rootFolder.Update();

                                webElevated.Update();

                                publishingWeb.Update();

                            }

                        }

                    }

                    catch (Exception ex)

                    {

                        Console.WriteLine(ex.Message);

                    }

                    finally

                    {

                        if (publishingWeb != null)

                        {

                            publishingWeb.Close();

                        }

                    }

                }

            }

            webElevated.AllowUnsafeUpdates = false;

        }

Feature De Activating:

SPSecurity.RunWithElevatedPrivileges(delegate()

            {

                try

                {

                    using (SPWeb spWeb = (properties.Feature.Parent as SPWeb))

                    {

                        SPFolder rootFolder = spWeb.RootFolder;

                        rootFolder.WelcomePage = "sitepages/Home.aspx";

                        rootFolder.Update();

                    }

                }

                catch (Exception ex) { }

            });