WinForms blazor login sytem

I'm doing a project in windowsforms with blazor in C#, the objective is to create a login system, I have the database already connected and the implementation of blazor with winforms is already done, it's giving me an error in the program class, I think which could be due to my check that I made between the program and the database in the login layout to confirm whether the user and password are correct or incorrect, the error I am facing is this: InvalidOperationException: Microsoft.AspNetCore.Components. Forms.InputText requires a value for the 'ValueExpression' parameter. Normally this is provided automatically when using 'bind-Value'. The code and the error is in the images