Hi
You can use
CheckBoxList control, which can have multiple check boxes
Consider control CheckBoxList has id
C when you click on button
funtion to get the serach result gets called in that funstion you write the below condition
for(int i=0; i< c.Items.Count;i++)
{
if(c.Items[i].Selected)
{
}
}
Write the SQL Select query to fetch the data by passing the checkbox selected values or use stored procedure to fetch data