/// <summary>
/// Indexatot
/// </summary>
/// <param name="indexRow"> Index of row </param>
/// <param name="indexColumn"> Index of column </param>
/// <returns> Element by [indexRow, indexColumn] </returns>
public virtual T this[int indexRow, int indexColumn]
{
get
{
ValidateIndexes(indexRow, indexColumn);
return(GetValue(indexRow, indexColumn));
}
set
{
ValidateIndexes(indexRow, indexColumn);
var elementArg = new ElementValueArg <T>(this[indexRow, indexColumn], value, indexRow, indexColumn);
OnElementValueChange(this, elementArg);
SetValue(value, indexRow, indexColumn);
}
}
/// <summary>
/// Inform listeners about changing of element
/// </summary>
/// <param name="sender"> Creator of event </param>
/// <param name="eventArgs"> Detail information about event </param>
protected virtual void OnElementValueChange(object sender, ElementValueArg <T> eventArgs)
{
ElementValueChanged?.Invoke(this, eventArgs);
}