https://community.esri.com/t5/python-questions/python-toolbox-parameter-issue/m-p/1194195#M65033 <P>I developed a python script tool in ArcGIS Pro that I would like to convert into a Python Toolbox tool. All the tool's parameters seem to work, except for the Snap Distance parameter. Every time I try to input a value into the Snap Distance's field box, it would disappear after I move onto the next input field. Here is the script for the parameter:&nbsp;</P><P>param5 = arcpy.Parameter(<BR />displayName="Guage Snap Distance",<BR />name="tolerance",<BR />datatype="GPDouble",<BR />parameterType="Optional",<BR />direction="Input")<BR />param5.filter.type = "ValueList"<BR />param5.filter.list = [100,300,700]</P><P>What are some possible reasons the entered input is disappearing? Is it related to my script or something else I should edit in the python toolbox?&nbsp;</P><P>Thanks for your help!</P> Wed, 20 Jul 2022 21:29:04 GMT tzz_12 2022-07-20T21:29:04Z https://community.esri.com/t5/python-questions/python-toolbox-parameter-issue/m-p/1194195#M65033 <P>I developed a python script tool in ArcGIS Pro that I would like to convert into a Python Toolbox tool. All the tool's parameters seem to work, except for the Snap Distance parameter. Every time I try to input a value into the Snap Distance's field box, it would disappear after I move onto the next input field. Here is the script for the parameter:&nbsp;</P><P>param5 = arcpy.Parameter(<BR />displayName="Guage Snap Distance",<BR />name="tolerance",<BR />datatype="GPDouble",<BR />parameterType="Optional",<BR />direction="Input")<BR />param5.filter.type = "ValueList"<BR />param5.filter.list = [100,300,700]</P><P>What are some possible reasons the entered input is disappearing? Is it related to my script or something else I should edit in the python toolbox?&nbsp;</P><P>Thanks for your help!</P> Wed, 20 Jul 2022 21:29:04 GMT https://community.esri.com/t5/python-questions/python-toolbox-parameter-issue/m-p/1194195#M65033 tzz_12 2022-07-20T21:29:04Z https://community.esri.com/t5/python-questions/python-toolbox-parameter-issue/m-p/1194229#M65038 <P>Can you include the entire .pyt file? My guess is there there is something happening in the toolbox functions (eg updateParameters) that is causing that.&nbsp; Also please <A href="https://community.esri.com/t5/python-blog/code-formatting-the-community-version/ba-p/1007633" target="_self">format the code</A></P> Wed, 20 Jul 2022 22:48:50 GMT https://community.esri.com/t5/python-questions/python-toolbox-parameter-issue/m-p/1194229#M65038 DonMorrison1 2022-07-20T22:48:50Z