I 'm learning Sharepoint using SPD 2010 and was wondering how can we redirect a Sharepoint Page in SPD 2010, like the way we do in any ASP.NET webpage using Response.Redirect("pagename.aspx"). Hence if I'm in Default.aspx and I want my site to redirect to NewPage.aspx on the click of the button. How that can be done in SPD 2010?
Modifying page by page to add buttons is not the best idea.
// If you would like to automatic redirect on the page.
Basically you could add a content editor web part to a page and there just put some code to redirect.
If you want to change the Welcome Page [Home Page] of your SharePoint site, you have this option in Site Settings -> Under Look and Feel -> Welcome Page, as shown in below image:
And here you can provide the URL of your Welcome Page or Browse for the page: