Hi Gina

Would it be an option to implement something like this in the event handler of the Input Type dropdown?

The following pieces of code use the InteractiveAutomationScriptToolkit NuGet package version 6.1.0 (NuGet Gallery | Skyline.DataMiner.Utils.InteractiveAutomationScriptToolkit 6.1.0).

Note that the InteractiveAutomationScriptToolkit package has a dependency on the DataMiner Automation Development NuGet package version >= 10.3.1 (NuGet Gallery | Skyline.DataMiner.Dev.Automation 10.3.1.1).

// To make this script interactive "engine.ShowUI()" must be mentioned somewhere (in code or in comment) in this file.
// Be aware, removing this indication will break the script!.

Skyline.DataMiner.Utils.InteractiveAutomationScript.InteractiveController interactiveController = new InteractiveController(engine);
ChannelDialog channelDialog = new ChannelDialog(engine);
channelDialog.BuildDialog();

// Uses the channelDialog as the first dialog.
interactiveController.Run(channelDialog);
// Uses the channelDialog as the second, third,... dialog.
// interactiveController.ShowDialog(channelDialog);

public class ChannelDialog : Skyline.DataMiner.Utils.InteractiveAutomationScript.Dialog
{
private Skyline.DataMiner.Utils.InteractiveAutomationScript.DropDown inputChannelDropDown;
private Skyline.DataMiner.Utils.InteractiveAutomationScript.DropDown inputTypeDropDown;

private List<string> inputChannelOptions = new List<string>();

public ChannelDialog(IEngine engine) : base(engine)
{
}

public void BuildDialog()
{
inputChannelDropDown = new DropDown
{
MinWidth = 200,
};

inputTypeDropDown = new DropDown
{
MinWidth = 200,
};

inputTypeDropDown.Changed += OnInputTypeChange;

AddWidget(inputTypeDropDown, 6, 1);
AddWidget(inputChannelDropDown, 7, 1);
}

private void OnInputTypeChange(object sender, DropDown.DropDownChangedEventArgs e)
{
inputChannelOptions.Clear();
switch (inputTypeDropDown.Selected)
{
case "APIN":
inputChannelOptions.Add("A-3-1 Upmix (L)");
break;
}

inputChannelDropDown.SetOptions(inputChannelOptions);
if (inputChannelOptions.Count > 0)
{
inputChannelDropDown.Selected = inputChannelOptions.First();
}
}
}