Default value for DataSelect

[scsbjr]

Hi,

Firstly, this project is great - we're currently using it in-house to create the new site for a local college and we've made some great progress with the "open-ness" of the manager, hooking our own Course API, etc in.

Once small thing we have noticed, and it may be me looking in the wrong place but we have a BlockGroup with a Generic DataSelectField for selecting an option that alters the UI slightly for a given list of CustomBlock, something similar to this;

[BlockGroupType(Name = "My Block Group")]
[BlockItemType(Type = typeof(CustomBlock))]
public class MyBlockGroup : BlockGroup
{
     [Field(Title = "Custom Option")]
     public DataSelectField<MyCustomClass> CustomOption { get; set; }
}

Where MyCustomClass is extended from the example given in the docs, and just hooked upto a list a objects for now rather than using the DB.

When this is rendered into the BlockGroup Component we don't seem to be able to specify a default value for it. We can catch it on the UI side if null/empty when rendering, but ideally we'd want this box to default to a set value in the manager, in the BlockGroup component, NOT the individual CustomBlock component. It seems the model has an ID which it would use as the Get/Set for the CustomOption, but I can't see where I would set this in class files.

We've tried the constructor of this BlockGroup and the constructor of the MyCustomClass object.

Any help would be appreciated, and apologies if it's just something I've missed!

Thanks!

[scsbjr]

Provided from https://gitter.im/PiranhaCMS/Piranha?at=6278fca510cfc315bc6e73de provided by https://github.com/GangsterGeek89.

If we alter

[BlockGroupType(Name = "My Block Group")]
[BlockItemType(Type = typeof(CustomBlock))]
public class MyBlockGroup : BlockGroup
{
     [Field(Title = "Custom Option")]
     public DataSelectField<MyCustomClass> CustomOption { get; set; }
}

to add in a private property and custom getter/setter;

[BlockGroupType(Name = "My Block Group")]
[BlockItemType(Type = typeof(CustomBlock))]
public class MyBlockGroup : BlockGroup
{
     [Field(Title = "Custom Option")]
     public DataSelectField<MyCustomClass> CustomOption
     {
	get => _CustomOption;
	set
	  {
		_CustomOption= value;
		SetDefaultItem();
	  }
     }

     private DataSelectField<MyCustomClass> _CustomOption{ get; set; }

     private void SetDefaultWidth()
     {
          if (_CustomOption!= null && _CustomOption.Items.Any())
          {
               if (_CustomOption.Value == null && _CustomOption.Id == null)
                     _CustomOption.Id = _CustomOption.Items.FirstOrDefault()?.Id;
          }
     }
}

this will set the default value of the DataSelectField<T> the the first item in the list, if no previous value has been set.