object reference not set to an instance of an object how to solve this error

Question

hai in .net i have an error object reference not set to an instance of an objecti don't know why this error occurs how to solve this error. Thank u

Krishna Garad · Answer

Your querystring value is null that's why this error is coming.

krithika muthukrishnan · Answer

hai in asp.net can i able to pass the query string with in the page likewise in first.aspx BY Role in first.aspx.cs string str1 str1=Request.QueryString[str].ToString(); //when i use like thisobject referene not set to an instance of an object error will occur how can i solve this. Thank u

Krishna Garad · Answer

Can you put your code line here.

Shankey · Answer

hi krithika It will be good if you can send some details of error and code but at first sight it looks that the you are trying to use an object which is null and something like that. your object seems to have null value.