# Fill Value List in .Net Custom Action From Code
**URL:** https://www.finalbuilder.com/forums/t/fill-value-list-in-net-custom-action-from-code/1509
**Category:** Discussion
**Created:** [June 23, 2010, 4:27am UTC](https://www.finalbuilder.com/forums/t/fill-value-list-in-net-custom-action-from-code/1509 "2010-06-23T04:27:24Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@deleted\_user](https://www.finalbuilder.com/forums/u/deleted_user)
#### Post date: [June 23, 2010, 4:27am UTC](https://www.finalbuilder.com/forums/t/fill-value-list-in-net-custom-action-from-code/1509/1 "2010-06-23T04:27:24Z")
Hello,
is there a way to e.g set the Items of a ComboBox from within the Custom Actions .Net Code? This way I can set the items of the combobox to the strings of an Enum without manually checking that they are in sync if it changes.
Hope they is a solution for this.
---
### Author:  [@paulsamways](https://www.finalbuilder.com/forums/u/paulsamways)
#### Post date: [June 23, 2010, 11:05am UTC](https://www.finalbuilder.com/forums/t/fill-value-list-in-net-custom-action-from-code/1509/2 "2010-06-23T11:05:08Z")
Hi,
You can use ‘InvokeAssemblyMethod’ method to call a managed method from the action’s script. The method must be public and take a single string parameter.
For example:
C#
public object[] GetEnumValues(string value) {
return Enum.GetNames(typeof(DayOfWeek));
}
VBScript
InvokeAssemblyMethod(“GetEnumValues”, “”)
Regards,
Paul.
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### Author:  [@deleted\_user](https://www.finalbuilder.com/forums/u/deleted_user)
#### Post date: [June 25, 2010, 8:13am UTC](https://www.finalbuilder.com/forums/t/fill-value-list-in-net-custom-action-from-code/1509/3 "2010-06-25T08:13:21Z")
thanks for the hint it works well, except for one thing:I can not access the members of the array.
Do I need to conver the array?
I have the following vbScipt code:
dim EValues
EValues = InvokeAssemblyMethod(“GetEnumValues”, “”)
for each i in EValues
MsgBox "Current i is " & i
next
It always returns a “type mismatch” error, but when debugging the script I can see that the EVAlues variable contains the correct values.
Best regards,
quirrel
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### Author:  [@paulsamways](https://www.finalbuilder.com/forums/u/paulsamways)
#### Post date: [June 28, 2010, 12:25pm UTC](https://www.finalbuilder.com/forums/t/fill-value-list-in-net-custom-action-from-code/1509/4 "2010-06-28T12:25:26Z")
Hi Quirrel,
Sorry, it look’s like VBScript can’t handle the array type that is being returned (works fine in Javascript). You can either switch to using Javascript, or return a string and split it in VBScript, i.e.
C#
[code]public string GetNames(string arg) { return string.Join(", ", Enum.GetNames(typeof(EnvironmentVariableTarget))); }[/code]
VBScript
[code]dim EValuesEValues = Split(InvokeAssemblyMethod(“GetNames”, “”), ", ")For Each x in EValues MsgBox xNext[/code]
Regards,
Paul.
---
### Author:  [@deleted\_user](https://www.finalbuilder.com/forums/u/deleted_user)
#### Post date: [June 28, 2010, 3:35am UTC](https://www.finalbuilder.com/forums/t/fill-value-list-in-net-custom-action-from-code/1509/5 "2010-06-28T03:35:42Z")
thanks for pointingt this out, I really thought I missed something here.
That one now works just fine.
May be you can give a final hint on how to pass a stringparameter to the c# method?
Calling
EValueName=“EProductVersionState”
EValues = Split(InvokeAssemblyMethod(“GetEnumValues”, EValueName), “|”)
throws an exception…
Best regards,
quirrel
---
### Author:  [@paulsamways](https://www.finalbuilder.com/forums/u/paulsamways)
#### Post date: [June 28, 2010, 10:36am UTC](https://www.finalbuilder.com/forums/t/fill-value-list-in-net-custom-action-from-code/1509/6 "2010-06-28T10:36:19Z")
Hi Quirrel,
Just tested it here and passing arguments works fine, I can’t see anything wrong with the code you’ve posted. What is the error that you’re getting?
Regards,
Paul.
---
### Author:  [@deleted\_user](https://www.finalbuilder.com/forums/u/deleted_user)
#### Post date: [June 29, 2010, 1:37am UTC](https://www.finalbuilder.com/forums/t/fill-value-list-in-net-custom-action-from-code/1509/7 "2010-06-29T01:37:14Z")
ok, the parameter “transmission” works well, it was a problem within the method that I called Do you have a hint on how to preselect the previously selected value?