user controls

Hi, I have an user control, which has a text box and a submit button. This user control is called in the .aspx page. The .aspx page has a datagrid, which displaces the records for the selected caseid. (caseid is given in the textbox of the user control and submit button is clicked. Once the user clicks the Submit Button which is on on .ascx page, the details of the caseid must be displayed in the .aspx page. Regards Praveen