EditContext not cascaded into custom input derived from InputBase

I have implemented my custom TextInput input component by deriving from InputBase<string?> class. After investigations, found out that the EditContext property of my component is not initialized though I've used my component within an EditForm. If I add the official InputText component which is developed by Microsoft, the problem is solved and the official component's EditContext property is initialized.
I compared my own implementation with the one from Microsoft and they are almost the same but in that mine has a .razor part.
Here is the implementation from Microsoft. This is my custom implementation:

custom component definition:

public partial class TextInput : InputBase<string?>{    [Parameter] public string WrapperCssClass { get; set; } = "";    [Parameter] public string InputCssClass { get; set; } = "";    [Parameter] public string? Label { get; set; }    [Parameter] public string? Placeholder { get; set; }    [Parameter] public bool Required { get; set; } = false;    [Parameter] public bool Disabled { get; set; } = false;    [DisallowNull] public ElementReference? Element { get; protected set; }    protected override bool TryParseValueFromString(string? value, [MaybeNullWhen(false)] out string result, [NotNullWhen(false)] out string? validationErrorMessage)    {        result = value;        validationErrorMessage = null;        return true;    }}

@inherits InputBase<string?><div class="wrapper @WrapperCssClass">    @if(!string.IsNullOrWhiteSpace(Label))    {<label class="form-label lbl @(Required ? "required": "")">@Label</label>    }<input @ref="Element" @bind="CurrentValueAsString" class="form-control @CssClass" placeholder="@Placeholder" disabled="@Disabled"/></div>

And this is how i've used the component:

<EditForm EditContext="DetailsModelEditContext"><div class="d-flex flex-column flex-grow-1 row-gap-3">        // This one's EditContext is null<TextInput Label="عنوانبنتخفیف" @bind-Value="CodeModel.StaticCode" />        // This one's EditContext is initialized<InputText @bind-Value="CodeModel.StaticCode"></InputText></div></EditForm>