<br />
<br />
<TelerikDropDownList
    Data = "@People"
    @bind-Value="@SelectedUser"
    TextField="LastFirst"
    ValueField="Id"
    Width="400px"
/>
<br />
<br />
<TelerikGrid
    Data="@Assets"
    EditMode="GridEditMode.Inline"
    Width="800px"
    OnUpdate="@Update"
    >
   <GridColumns>
       <GridColumn Field="@nameof(Asset.AssetId)" Title="ID" Width="50px"/>
       <GridColumn Field="@nameof(Asset.BarCode)" Title="BarCode" Width="125px"/>
       <GridColumn Field="@nameof(Asset.UserId)" Title="User" Width="125px">
           <Template>
                @{
                    CurrentAsset = (Asset)context;
                    Person? p = People.FirstOrDefault<Person>(x => x.Id == CurrentAsset.UserId);
                    if(p != null)
                    {                        
                        <span>@p.LastFirst</span>
                    }
               }
           </Template>
           <EditorTemplate>
               @{
                    CurrentAsset = (Asset)context;
                   <TelerikDropDownList
                        Data = "@People"
                        @bind-Value="@CurrentAsset.UserId"
                        TextField="LastFirst"
                        ValueField="Id"
                   />

               }
           </EditorTemplate>
       </GridColumn>
        <GridCommandColumn Width="100px" Locked="true">
            <GridCommandButton Command="Save" Icon="save" ShowInEdit="true"></GridCommandButton>
            <GridCommandButton Command="Edit" Icon="edit"></GridCommandButton>
            <GridCommandButton Command="Delete" Icon="delete"></GridCommandButton>
            <GridCommandButton Command="Cancel" Icon="cancel" ShowInEdit="true"></GridCommandButton>
        </GridCommandColumn>        
   </GridColumns>
</TelerikGrid>

<br />

@code {
    public List<Person> People = new();
    public List<Asset> Assets = new();
    int SelectedUser = 0;
    Asset CurrentAsset = new();

    protected override void OnInitialized()
    {
        LoadData();
        base.OnInitialized();
    }

    public void LoadData()
    {
        People.Add(new Person(1, "Brent", "Tuominen"));
        People.Add(new Person(2, "Tina", "Tuominen"));
        People.Add(new Person(3, "Casey", "Tuominen"));
        People.Add(new Person(4, "Ryan", "Tuominen"));
        People.Add(new Person(5, "Alex", "Tuominen"));

        Assets.Add(new Asset(1, "BC001"));
        Assets.Add(new Asset(2, "BC002"));
        Assets.Add(new Asset(3, "BC003"));
        Assets.Add(new Asset(4, "BC004"));
        Assets.Add(new Asset(5, "BC005"));
    }

    public void Update(GridCommandEventArgs args)
    {
        Asset a = (Asset)args.Item;
        Asset? asst = Assets.FirstOrDefault(x => x.AssetId == a.AssetId);

        if(asst != null)
        {
            asst.BarCode = a.BarCode;
            asst.UserId = a.UserId; 
        }
        StateHasChanged();
    }

    public class Asset
    {
        public Asset()
        {
            
        }
        public Asset(int assetId, string barcode)
        {
            AssetId = assetId;
            BarCode = barcode;
        }
        public int AssetId{ get; set; }
        public string BarCode { get; set; } = string.Empty;
        public int? UserId{ get; set; }
    }

    public class Person
    {
        public Person(int id, string fName, string lName)
        {
            Id = id;
            FirstName = fName;
            LastName = lName;
        }
        public int Id{ get; set; }
        public string FirstName { get; set; } = string.Empty;
        public string LastName { get; set; } = string.Empty;
        public string LastFirst
        {
            get
            {
                return LastName + ", " + FirstName;
            }
        }
        public string FullName
        {
            get
            {
                return FirstName + " " + LastName;
            }
        }
    }
}