ant-design-blazor/components/input/TextArea.razor

@namespace AntDesign
@inherits Input<string>
<!--TODO: minheight, maxheight, onResize-->

@{
    Dictionary<string, object> attributes =
        new Dictionary<string, object>()
        {
            { "onchange", CallbackFactory.Create(this, OnChangeAsync) },
            { "onblur", CallbackFactory.Create(this, OnBlurAsync) },
            { "oninput", CallbackFactory.Create(this, OnInputAsync) },
            { "onkeypress", CallbackFactory.Create(this, OnKeyPressAsync) },
            { "onkeyup", CallbackFactory.Create(this, OnKeyUpAsync) },
            { "onkeydown", CallbackFactory.Create(this, OnkeyDownAsync) },
            { "onfocus", CallbackFactory.Create(this, OnFocusAsync) },
            { "value", CurrentValueAsString },
            { "placeholder", Placeholder },
            { "id", Id },
            { "style", Style },
            { "class", ClassMapper.Class },
            { "disabled", Disabled },
         };

    if (Attributes != null)
    {
        Attributes.Keys.ForEach(key => { attributes[key] = Attributes[key]; });
    }
}

@if (Suffix != null)
{
    <span class="@_warpperClassMapper.Class">
        <textarea @ref="Ref" @attributes="attributes"/>
        @Suffix
    </span>
}
else
{
    <textarea @ref="Ref" @attributes="attributes"/>
}