title: Enabling/disabling input into certain fields based on the value of another field
body: <p>In the data entry form frmlastweeksactivities . When a row has "Gold"or "Silver" or "Bronze" as content in the [“category of activity “] field /column then disable  columns/fields[5] &amp; [6]</p>
  
  <p>When a row has "Wood" or "Hay"or "Stubble "as content in the [“category of activity “] field /column then disable columns/fields[8] &amp; [9]</p>
  
  <p>Disable means not allow any data entry in this case turn them red as well would be nice</p>
  
  <p>I am trying to build and expression to use in either the table validation rule properties or in one of the control -txt boxes in the form </p>