有没有办法根据用户的选择更改Blazor EditForm组件上的模型？

public class UserModel
{
    public string Name { get; set; }
    public int Age { get; set; }
    // 其他属性...
}

@page "/user"
<EditForm Model="@userModel" OnValidSubmit="@HandleValidSubmit">
    <DataAnnotationsValidator />
    <ValidationSummary />

    <label for="name">Name:</label>
    <InputText id="name" @bind-Value="@userModel.Name" />

    <label for="age">Age:</label>
    <InputNumber id="age" @bind-Value="@userModel.Age" />

    <button type="submit">Submit</button>
</EditForm>

@code {
    private UserModel userModel = new UserModel();

    private void HandleValidSubmit()
    {
        // 处理表单提交逻辑
    }
}

<label for="gender">Gender:</label>
<select id="gender" @bind="@userModel.Gender">
    <option value="Male">Male</option>
    <option value="Female">Female</option>
</select>

<label for="hobbies">Hobbies:</label>
@foreach (var hobby in hobbies)
{
    <div>
        <input type="checkbox" id="@hobby" @bind="@userModel.Hobbies" value="@hobby" />
        <label for="@hobby">@hobby</label>
    </div>
}

@code {
    private UserModel userModel = new UserModel();
    private List<string> hobbies = new List<string> { "Reading", "Sports", "Music" };
}