How does the value list filter in ArcGIS change?
Here is another example in which the Value List Filter in the second parameter changes based on the shape type found in the first parameter, a feature class:
How to format a drop down list in ArcPy?
I looked for info on altering this validation code, but I could not find info on using it for formatting drop-down lists.
How are parameters set in a Python toolbox?
Almost all tools have parameters and you set their values on the tool dialog box or within a script. When the tool is executed, the parameter values are sent to your tool’s source code. Your tool reads these values and proceeds with its work.
What do you need to know about parameters in Python?
Parameter objects have many read-write properties, but the properties that should be set for every parameter include the following: The parameter name as displayed on the tool’s dialog box. The parameter name as shown in the tool’s syntax in Python. Every Python toolbox tool parameter has an associated data type.
How do you add a parameter in ArcGIS?
To add a new parameter, click the first empty cell in the Display Name column and type the name of the parameter. This is the name that will be displayed on the tool dialog box and can contain spaces.
When to use multivalue or Yes in ArcGIS?
If the parameter Type is Derived, direction is always equal to Output. Multivalue is Yes if you want a list of values and No if you want a single value. The default value for the parameter. When the parameter data type is either feature set or record set, Default is replaced with Schema.
How do you add a parameter in Python?
To add a new parameter, click the first empty cell in the Display Name column and type the name of the parameter. This is the name that will be displayed on the tool dialog box and can contain spaces. For Python syntax, the parameter name will be the display name with spaces replaced by underscores (_).