Fill Value List in .Net Custom Action From Code

FinalBuilder Discussion
1

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.

2

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.

3

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

4

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.

5

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

6

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.

7

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?