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How do you filter a parameter in Python?
Applying a filter to a parameter allows you to narrow the choices available to the user for a parameter. For example, you can set up a field filter that limits choices to just text fields. Geoprocessing creates filters automatically for parameters of type string, long, double, feature class, file, field, and workspace.
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.
How to bind empty list to table valued parameter?
I am converting a List to an IEnumerable , and binding that to the table valued parameter for the stored procedure. I have tried to bind an empty List , which resulted in the error: System.ArgumentException: There are no records in the SqlDataRecord enumeration.
Is the table valued parameter nullable in DbNull?
Table-valued parameters cannot be DBNull. It does not appear that you can declare the table valued parameter as nullable in the stored procedure declaration. What is the correct method for binding an empty list to at table valued parameter?
How to define parameters in a feature class in Python?
Record Set allows your user to interactively create rows in a simple table grid. The symbology and schema (attributes and geometry type) can be set for the Feature Set and Record Set control by setting the parameter’s value property to a feature class, table, or layer file ( .lyrx ).
How to select layer by attribute in ArcPy?
You may have a layer in your map that’s source points to the same input as the featureclass you provided to the tool, but you basically have two instances of these layers now. Fix: Change the input parameter type from feature class to feature layer.
What does parameterdependencies do in Python toolbox?
For a derived output parameter, parameterDependencies is set to the input parameter that will be modified by the tool. For input parameters, parameterDependencies contains the name of other parameters used by the data type.
How to set default values for a parameter?
To set default values for a value table parameter, use the values property and provide the parameter values in a list of lists of values. Default values can be set for a parameter by either applying a value directly with the value property or by applying the value of an environment setting using defaultEnvironmentName.