Auto select first row

Hi everyone,

I have been creating in apps in Angular, but am now trying to move to Blazor. I am having an issue with auto selecting the first row in a datagrid. I have tried the demo but get errors trying to bind values. I am using Blazor/C and have the following page structures

XXX.razor
XXX.razor.cs
XXX.razor.designer.cs

Sorry for the noob questions, but I woiuld appreciated any recommendations.

Check this demo on how @bind-Value is used to select row: