There are many ways to reload / refresh a page in javascript. One of them is as in discoveringsharepoint.wordpress.com describes:

window.location.reload()
```Today I found some tools which are shipped with ASP.NET/SharePoint to reload a page. The big advantage of them they are designed to work with SharePoint and take all possible aspects of page life cycle into account. The javascript function to refresh a page is just called, guess..: **RefreshPage** and it resides in init.js:

//init.js: function RefreshPageTo(evt, url, bForceSubmit) {ULSA13:; CoreInvoke(’_RefreshPageTo’, evt, url, bForceSubmit); }

Äntligen har jag kommit på hur man kan skippa oönskad postback i button. Det finns många olika lösningar. Här är ett intressant inlägg på stackoverflow om det. Men det enklaste sättet är egentligen bara lägga till

return false;
```i onclick... Här är lösningen

using System.Web.UI.HtmlControls; … HtmlButton HtmlButtonSendMail; protected override void CreateChildControls() { … #region Configure Send Email HtmlButtonSendMail = new HtmlButton(); HtmlButtonSendMail.InnerText = “Send Email”; HtmlButtonSendMail.ID = “HtmlButtonSendMail”; string script = “”; script += “SP.UI.Notify.addNotification(‘Loading..’, false);”; script += “var options = {”;      script += "  url: \"../_layouts/Toolbox/SendMail.aspx\",";     script += "  width: 800,";    script += "  height: 680,";      script += "  allowMaximize: false";     script += “};”; script += “SP.UI.ModalDialog.showModalDialog(options);”; script += “return false;”; HtmlButtonSendMail.Attributes.Add(“onclick”, script); HtmlButtonSendMail.Attributes.Add(“title”, “Skicka mail till\r\nde här personerna”); Controls.Add(HtmlButtonSendMail);                 #endregion … } … protected override void Render(HtmlTextWriter writer) { … writer.RenderBeginTag(HtmlTextWriterTag.Div); HtmlButtonSendMail.RenderControl(writer); writer.RenderEndTag();//div
… } … other javascript stuff needed to work with your ajax solution