/// <summary>
/// Called when [checkbox change].
/// </summary>
/// <param name="checkbox">The checkbox.</param>
/// <returns></returns>
internal void OnCheckboxChange(Checkbox checkbox)
{
var index = _checkboxItems.IndexOf(checkbox);
int indexOffset;
OneOf <CheckboxOption[], string[]> workWith;
if (checkbox.IsFromOptions)
{
indexOffset = _indexSetOptionsOffset;
workWith = Options;
}
else
{
indexOffset = _indexConstructedOptionsOffset;
workWith = _constructedOptions;
}
workWith.Switch(opts =>
{
if (opts[index] != null)
{
opts[index].Checked = checkbox.Checked;
}
}, opts =>
{
if (checkbox.Checked && !opts[index - indexOffset].IsIn(_selectedValues))
{
_selectedValues = _selectedValues.Append(opts[index - indexOffset]);
}
else
{
_selectedValues = _selectedValues.Except(new[] { opts[index - indexOffset] }).ToArray();
}
});
CurrentValue = _currentValue();
if (OnChange.HasDelegate)
{
OnChange.InvokeAsync(CurrentValue);
}
StateHasChanged();
}
internal void AddItem(Checkbox checkbox)
{
this._checkboxItems ??= new List <Checkbox>();
this._checkboxItems?.Add(checkbox);
checkbox.IsFromOptions = IsCheckboxFromOptions(checkbox);
if (!checkbox.IsFromOptions)
{
checkbox.SetValue(_selectedValues.Contains(checkbox.Label));
if (_indexConstructedOptionsOffset == -1)
{
_indexConstructedOptionsOffset = _checkboxItems.Count - 1;
}
}
else if (checkbox.IsFromOptions && _indexSetOptionsOffset == -1)
{
_indexSetOptionsOffset = _checkboxItems.Count - 1;
}
}
internal void RemoveItem(Checkbox checkbox)
{
this._checkboxItems?.Remove(checkbox);
}
internal void AddItem(Checkbox checkbox)
{
this._checkboxItems ??= new List <Checkbox>();
this._checkboxItems?.Add(checkbox);
}