App.razor

<p>
    <div>
        <input type="text" @bind="Text1" />
        Text1: [@Text1]
    </div>
</p>

<p>
    <div>
        <input type="text" @bind="Text2" @bind:event="oninput" />
        Text2: [@Text2]
    </div>
</p>

@code  {
    private string Text1 = "";
    private string Text2 = "";
}