What I see in your screenshots is that you have a dataview which shows AssetType, which has 1 attribute Name
If you want to have a dropdown with all names, you need to put those names in a separate entity (f.e. Asset) with a name attribute and that will allow you to use a dropdown widget where you set the association between your main entity (assetType) and the name entity (Asset).
Hi Mukesh,
Can you explain how you have implemented dropdown please