Locking User Defined Parameters

[tschaeferZNBXX]

Does anyone know if there is a way to lock the user defined parameters in a model?  I am trying to ensure that users cannot change any of these when using what I will call a start model which has some iLogic and rules in place.  I worry that some users may see the parameter and try to delete or modify them which will then mess up our iLogic and Forms.

[LukeDavenport]

Why not just use the start part as a template. That's the easiest way probably

[tschaeferZNBXX]

Here is what we currently have.  They are set as templates but the ability to change the parameters still exists.

This is what a user will use to start their model.

[LukeDavenport]

Option 1) Set the parameter to the required static value on document open/save/at the start of existing rule?

Option 2) Set Parameter.DisabledActionTypes Property to kAllActions? (Although I don't think this stops modification of the value unfortunately).

[tschaeferZNBXX]

Not sure I fully understand the first option. Do you have any screen shoots to show this?

[DRoam]

For the OP or anyone else looking to do this:

• To block deleting a parameter, use Parameter.Param("ParameterName").DisabledActionTypes = ActionTypeEnum.kDeleteAction.
• To block editing a parameter's value, convert it to a Reference Parameter using: Parameter.Param("ParameterName").ConvertToReferenceParameter. (Keep in mind that in order to modify the parameter's value after that, you have to convert it back to a User Parameter first, using Parameter.Param("ParameterName").ConvertToUserParameter, change the value, and then convert it back to a Reference Parameter).
• To block renaming a parameter, please vote for the following idea: iLogic/API: Prevent renaming of certain Parameters.

[Anonymous]

Yes this is almost what I am looking for,too. But if I use Parameter.Param("ParameterName").ConvertToReferenceParameter it works fine and convert the parameter as expected. Then if a value change then I got this message "Public member 'ConvertToReferenceParameter' on type 'ReferenceParameter' not found." So I suppose that you can not use this command when the parameter is already that kind of parameter (Reference). Is any way to check it before I use the command for example something like this:

IF UserParameters("Parameter1").exist= True Then Parameter.Param("ParameterName").ConvertToReferenceParameter 

End if

[WCrihfield]

Hi @Anonymous.  It looks like you need a way to check if the specific named parameter is already a reference parameter before attempting to convert it into a reference parameter.  Here is something you can use for this task:

Dim oPDoc As AssemblyDocument = ThisDoc.Document
oParams = oPDoc.ComponentDefinition.Parameters
Dim oParam As Inventor.Parameter
Try
	oParam = oParams.Item("Parameter1")
Catch oEx As Exception
	MsgBox("Parameter not found." & vbCrLf & oEx.Message, , "")
End Try
If IsNothing(oParam) Then Exit Sub
If oParam.ParameterType <> ParameterTypeEnum.kReferenceParameter Then
	Try
		oParam.ConvertToReferenceParameter
	Catch oEx As Exception
		MsgBox("Failed to convert to Reference." & vbCrLf &
		oEx.Message & vbCrLf & oEx.StackTrace & vbCrLf & oEx.Source, , "")
	End Try
End If

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[Anonymous]

Thanks for your response. It seems a little bit more complicated than expected. I tried this instead: 

Parameter.Param("ParameterName").ConvertToModelParameter 

if  A>B Then 

Parameter.Param("ParameterName").ConvertToReferenceParameter 

else if 

Parameter.Param("ParameterName").ConvertToUserParameter 

end if 

So now it can be converted in any case. It works when I manually run the rule but it crashes when i change a parameter (i don t know why yet). I have to "Save & Run" the rule manually to work.