/// <summary>
/// Создание глубокой копии фильтра.
/// </summary>
/// <returns></returns>
public override object Clone()
{
EnumFilterValue clone = new EnumFilterValue();
clone.BCheckBoxNull = BCheckBoxNull;
if (BCheckedListBox != null)
{
bool[] arr = new bool[BCheckedListBox.Length];
Array.Copy(bCheckedListBox, arr, bCheckedListBox.Length);
clone.BCheckedListBox = arr;
}
else
{
clone.BCheckedListBox = null;
}
return clone;
}
public static FilterValue CreateEmptyValue(FilterColumn column)
{
Type type = column.Type;
if (type == typeof(string))
{
return new StringFilterValue();
}
if (type == typeof(bool) || type == typeof(bool?))
{
return new BooleanFilterValue();
}
if (type == typeof(int) || type == typeof(int?))
{
return new NumberFilterValue() { DataType = typeof(int) };
}
if (type == typeof(decimal) || type == typeof(decimal?))
{
return new NumberFilterValue() { DataType = typeof(decimal) };
}
if (type == typeof(DateTime) || type == typeof(DateTime?))
{
return new DateFilterValue();
}
if (type.IsEnum || (type.IsGenericType && type.GetGenericTypeDefinition().FullName == "System.Nullable`1" && type.GenericTypeArguments[0].IsEnum))
{
var val = new EnumFilterValue();
Type t = type;
if (type.IsGenericType && type.GetGenericTypeDefinition().FullName == "System.Nullable`1" && type.GenericTypeArguments[0].IsEnum)
{
t = type.GenericTypeArguments[0];
}
val.HandleEnumTypeChanged(t);
return val;
}
return null;
}
/// <summary>
/// Конструктор
/// </summary>
public QueryGridEnumFilter()
{
InitializeComponent();
value = new EnumFilterValue();
dataTypeChanged += new EventHandler(QueryGridEnumColumnFilter_dataTypeChanged);
InternalValuesToExternalValues();
}