Thanks, this works.

Jerry




>Jerry,
>
>Just check to see if it's null first before attempting to process it:
>

>  if (Request.QueryString["myKey"] != null)
>      lcKey = Request.QueryString["myKey"];
>

>
>~~Bonnie
>
>
>>I'm using ASP.Net to create a WebForm.
>>
>>In my Page_Load(), I want to test for IsPostBack and capture parameters if any. Here's what I do.
>>
>>

>>///Page_Load()
>>string lcKey;
>>if (Page.IsPostBack)
>>{
>>  lcKey = Request.QueryString["myKey"];
>>}
>>

>>
>>However, if Page.IsPostBack = True and there were not any parameters passed, I get this error:
>>
>>Object reference not set to an instance of an object.
>>
>>If I have a Request.QueryString["myKey"];, do I have to pass parameters? Or, how can I test for parameters being passed?
>>
>>Thanks,
>>
>>Jerry