Create and open sites by using SharePoint Designer 2010

Save a SharePoint site as a template

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Managing SharePoint Designer 2010

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Video: Configure site security using SharePoint Designer 2010

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Create SharePoint site pages

Article In Microsoft SharePoint Designer 2010, you can quickly and easily add pages to a SharePoint site and then customize those pages in the browser or in...

Master pages

Introduction to SharePoint master pages

Learn about master pages in SharePoint 2010 and how to customize them in SharePoint Designer 2010

Working with content placeholder controls

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Customize a master page to brand your site

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Customize your My Site master page

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Data Views and forms

Create a custom list form using SharePoint Designer

Article SharePoint lists and libraries contain list forms that allow users to display, edit, and add items to a list or library.

Create a custom list view using SharePoint Designer

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Web Parts for views and forms in SharePoint Designer 2010

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Create a list or library using SharePoint Designer

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Create data forms using SharePoint Designer

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Create data views in SharePoint Designer

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Edit list forms using InfoPath 2010 in SharePoint Designer

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Customize Data Views and forms using SharePoint Designer

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Video: Create Web Part connections using SharePoint Designer 2010

Video Learn how to Create Web Part connections using SharePoint Designer 2010 by SharePoint MVP Asif Rehmani

SharePoint Designer 2010 Videos

Video: Introducing SharePoint Designer 2010

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Video: Create an approval workflow in SharePoint Designer 2010

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Video: Managing SharePoint Designer 2010

Video This video will help you learn how to manage SharePoint Designer 2010, including how to: Hide master pages and page layouts Hide the web site URL structure...

Video: Business Connectivity Services - Authentication from the browser

Video In SharePoint Designer 2010, you can create an external content type to display data from an external SQL database in an external list in the browser. Learn...

Video: Publish globally reusable workflows in SharePoint Designer 2010

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Video: Get to data using Web Services in SharePoint Designer 2010

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Video: Create Web Part connections using SharePoint Designer 2010

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Video: Configure site security using SharePoint Designer 2010

Video Learn how to configure site security using SharePoint Designer 2010 by SharePoint MVP Asif Rehmani

Video: Customize workflow forms using InfoPath 2010

Video Learn how to customize workflow forms using InfoPath 2010 by SharePoint MVP Asif Rehmani

Cannot open pages in sub sites with SharePoint Designer 2010

What is happening? | What the issue is?

Cannot open pages in sub sites with SharePoint Designer 2010 even if users have Design or higher permissions at the sub site level

SharePoint Designer is a powerful application that enables the rapid creation, editing and deployment of content on the SharePoint platform. As such, certain mandatory permission levels are required. You use SharePoint Designer to create and customize data sources, views and forms, workflows, master pages, and more. When performed together, you can create real business solutions on the SharePoint platform.

Points to be noted: SharePoint Designer is designed to request and use SharePoint permissions that grant the rights of managing & designing at the SharePoint site level it is not design to use the permission at a smaller granularity level such as list item level permissions...

Conclusion:

To be able to use SharePoint Designer and modify SharePoint content, an user needs to be a member of one of the following groups at the site collection level: Site Collection Administrators group, the Designers group, and Owners group.

Reference Documents:

1.   http://technet.microsoft.com/en-us/library/cc262939.aspx

2.   http://technet.microsoft.com/en-us/library/cc721640.aspx

Workarounds:

1. Give the user Design permissions to the Master Page gallery and read permission to the rest of the site.

2. Copy down the Master Page to the sub site instead of inheriting.

Finally, it seems that this issue is by designJ

If you have any queries/questions regarding the above mentioned information then please let me know. I would be more than happy to help you as well as resolves your issues J J