This article shows you how to create Web Part in Visual Studio and deploy to Office 365 SharePoint.

To create SharePoint Web Part fir Office 365 SharePoint.

1. You must have Office 365 SharePoint SDK installed
2. Go to pull down menu File -> New -> Project…
3. Select Office/SharePoint -> SharePoint Solutions -> SharePoint 2013 – Visual Web Part.
4. Use the default name then click OK.
5. Choose Deploy as sandbox solution.
6. Click on “Finish (button)” in “SharePoint Customization Wizard”.
   
   7. Open VisualWebPart1.ascx and add the following HTML tag to the bottom of the file.

   <asp:Label ID=”Label1″ runat=”server” Text=”Title”></asp:Label>
   <asp:TextBox ID=”TextBox1″ runat=”server”></asp:TextBox>
   <asp:Button ID=”Button1″ runat=”server” Text=”Save” OnClick=”Button1_Click” />
   

   8. Open VisualWebPart1.ascx.cs and add the following method to the code.

   protected void Button1_Click(object sender, EventArgs e)
   
   {
   
   SPWeb spweb = SPContext.Current.Web;
   
   SPList list = spweb.Lists[“Approval List”];
   
   SPListItem listItem = list.Items.Add();
   
   listItem[“Title”] = TextBox1.Text;
   
   listItem.Update();
   
   }
   

   
   9. Change your Project site url to Office 365 SharePoint url.
   
   10. Go to Build -> Deploy solution.

   You then will find a file with wsp extension in your solution folder. Go to Office 365 SharePoint Site -> Site settings -> Solution (Web Designer Galleries). Upload Solution to upload the wsp file then Activate it. The Visual Web Part will now in your Office 365 SharePoint.