Create Simple SharePoint Hello World WebPart And Add It To a Web Part Page

Not much work is needed to create a webpart in SharePoint (WSS or MOSS). I will show the simplest of webparts, so you can see how little work it takes.

1: Create a class library project, and add a reference to System.Web and Microsoft.SharePoint (rightclick “References” in “Solution Explorer”)

2: Create a batch (.bat) file to install in GAC

3: Sign the assembly (Properties on the project, bottom tab)

4: Add code (won’t be using actual SharePoint API, but you can do that as you wish, since we referenced SharePoint.dll)

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using System;
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using System.Web;
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using System.Web.UI.WebControls;
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using System.Web.UI.WebControls.WebParts;
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using System.Web.UI;
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namespace HelloWorldWebPart
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{
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  public class HelloWorld : WebPart
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  {
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    protected override void CreateChildControls()
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    {
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      base.CreateChildControls();
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      this.Controls.Add(new LiteralControl("Hello, world! Welcome to Code-Journey.com"));
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    }
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  }
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}
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Remember to make the class public, otherwise you will not be able to add it to the SharePoint Web Part Gallery.

5: add safecontrol line to web.config

6: Go to the SharePoint Web Part Gallery (“Site Settings” and click “Web Parts” under the “Galleries” row.)

7: Click “New” in the top left corner.

8: Scroll through the list and check the “HelloWorldWebPart.HelloWorld” and click on “Populate Gallery”

9: Add the Web Part to any Web Part Page (try it on your front page) by clicking “Edit Page” in “Site Actions” menu. Click the “Add a Web Part” yellow link over the Web Part Zone you want to add it to.

10: A popup will appear. Click the + next to “All Web Parts” and and find the Web Part under Miscellaneous

Related posts:

1. Repair broken Web Part Page in SharePoint / Remove Web Part From Page
2. Make a SharePoint Application Page with CodeBehind
3. How to create a new feature in sharepoint using Visual Studio
4. How To Add A UserControl To A Web Part In SharePoint 2007
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