This error might occur if you have selected your selection list (dropdownlist) multiple times. You can add multiple=”true” e.g. in your selection list so as to enable multiple item select. If you don’t want your selection list to be multiple select enabled then you have to check whether you have selected the selection list multiple [...]

convert string to datetime string datestring = “18 March 2008″; DateTime parseddate = Convert.ToDateTime(datestring); Response.Write(parseddate); convert datetime to string

Change page title and meta tags dynamically/programmatically in C#.net to change page title Page.Title = “New Page Title”;