Update a web part programmatically
This is an example how we can update a web part programmatically in multiple sites. LiteralControl lit = new LiteralControl(); lit.Text = ""; try { using (SPSite site = new SPSite(SPContext.Current.Web.Site.RootWeb.Url)) { for (int i = 1; i < site.AllWebs.Count; i++) { lit.Text += "<BR/>" + site.AllWebs[i].Title; SPFile file=site.AllWebs[i].GetFile(site.AllWebs[i].ServerRelativeUrl + "/default.aspx"); if ( file.Exists) { using (Microsoft.SharePoint.WebPartPages.SPLimitedWebPartManager wpm = site.AllWebs[i].GetLimitedWebPartManager(file.Url, PersonalizationScope.Shared)) { foreach (WebPart wp in wpm.WebParts) { if (wp.Title == "Notes") { wp.Height = new Unit("200px"); wpm.SaveChanges(wp); break; } } } } } } } catch (Exception ex) { lit.Text += "<BR/>" + ex.ToString(); } this.Controls.Add(lit);