/// <inheritdoc />
protected override void OnParametersSet()
{
var groupName = !string.IsNullOrEmpty(Name) ? Name : _defaultGroupName;
var fieldClass = EditContext?.FieldCssClass(FieldIdentifier) ?? string.Empty;
var changeEventCallback = EventCallback.Factory.CreateBinder <string?>(this, __value => CurrentValueAsString = __value, CurrentValueAsString);
_context = new InputRadioContext(CascadedContext, groupName, CurrentValue, fieldClass, changeEventCallback);
}
/// <summary>
/// Adds the specified field.
/// </summary>
/// <param name="field">The field.</param>
/// <param name="context">The context.</param>
/// <returns>ClassList.</returns>
public ClassList Add(FieldIdentifier field, EditContext context)
{
if (field.FieldName != null && context != null)
{
return(Add(context.FieldCssClass(field)));
}
return(this);
}
/// <inheritdoc />
protected override void OnParametersSet()
{
// On the first render, we can instantiate the InputRadioContext
if (_context is null)
{
var changeEventCallback = EventCallback.Factory.CreateBinder <string?>(this, __value => CurrentValueAsString = __value, CurrentValueAsString);
_context = new InputRadioContext(CascadedContext, changeEventCallback);
}
else if (_context.ParentContext != CascadedContext)
{
// This should never be possible in any known usage pattern, but if it happens, we want to know
throw new InvalidOperationException("An InputRadioGroup cannot change context after creation");
}
// Mutate the InputRadioContext instance in place. Since this is a non-fixed cascading parameter, the descendant
// InputRadio/InputRadioGroup components will get notified to re-render and will see the new values.
_context.GroupName = !string.IsNullOrEmpty(Name) ? Name : _defaultGroupName;
_context.CurrentValue = CurrentValue;
_context.FieldClass = EditContext?.FieldCssClass(FieldIdentifier);
}
