How to open a page in new tab with readonly/disable the page(content) using window.open()

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C#

ASP.NET

Hai
Here, i open a page in new window. its working fine but page content is editable mode, i want to open page just for showing data not editable. so, for that how can i put it in readonly or disable mode. This is my code,

Please help me



string str = HttpRuntime.AppDomainAppVirtualPath;
string path = Page.Request.Url.ToString();
string url = Page.Request.Url.GetLeftPart(UriPartial.Authority) + str + "/ApplicationMgmt/NewRegistration.aspx";
StringBuilder sb = new StringBuilder();
sb.Append("window.open('");
sb.Append(url);
sb.Append("');");
ScriptManager.RegisterClientScriptBlock(this, typeof(Page), "Registration", sb.ToString(),true);