I am trying to create a Python Toolbox and I need to load some chekboxes to a parameter (param2) after selecting a value in previous parameter (param1). As you can see I have name of states in param1 and need to load a code like this after changing on param1
inFeature <SPAN class="operator token">=</SPAN> parameters<SPAN class="punctuation token">[</SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">.</SPAN>valueAsText
slectedCounty <SPAN class="operator token">=</SPAN> parameters<SPAN class="punctuation token">[</SPAN><SPAN class="number token">1</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">.</SPAN>valueAsText
counties <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">[</SPAN><SPAN class="punctuation token">]</SPAN>
<SPAN class="keyword token">def</SPAN> <SPAN class="token function">unique_values</SPAN><SPAN class="punctuation token">(</SPAN>table <SPAN class="punctuation token">,</SPAN> field<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">:</SPAN>
<SPAN class="keyword token">with</SPAN> arcpy<SPAN class="punctuation token">.</SPAN>da<SPAN class="punctuation token">.</SPAN>SearchCursor<SPAN class="punctuation token">(</SPAN>table<SPAN class="punctuation token">,</SPAN> <SPAN class="punctuation token">[</SPAN>field<SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">'"NAME_1" = \''</SPAN><SPAN class="operator token">+</SPAN>slectedCounty<SPAN class="operator token">+</SPAN><SPAN class="string token">'\''</SPAN><SPAN class="punctuation token">)</SPAN> <SPAN class="keyword token">as</SPAN> cursor<SPAN class="punctuation token">:</SPAN>
<SPAN class="keyword token">return</SPAN> sorted<SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">{</SPAN>row<SPAN class="punctuation token">[</SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">]</SPAN>
