public static void MoveToOrderValue(IEnumerable <IObjectWithOrderValue> list, IObjectWithOrderValue obj, int newOrderValue)
{
if (newOrderValue <= 0)
{
newOrderValue = 1;
}
DropDirection dropDirection = obj.order > newOrderValue ? DropDirection.upwards : (obj.order < newOrderValue ? DropDirection.downwards : DropDirection.atpos);
switch (dropDirection)
{
case DropDirection.downwards:
foreach (var a in list.Where(a => a.order > obj.order && a.order <= newOrderValue).ToList())
{
a.order = a.order - 1;
}
break;
case DropDirection.atpos:
case DropDirection.upwards:
foreach (var a in list.Where(a => a.order >= newOrderValue && a.order < obj.order).ToList())
{
a.order = a.order + 1;
}
break;
}
obj.order = newOrderValue;
}
private string GetDropCss()
{
return(CssBuild.New.Add("dropdown", !EnableDefaultMenuFlag)
.Add("btn-group", EnableDefaultMenuFlag)
.Add(DropDirection.ToDescriptionString())
.Add("show", IsOpen)
.Add(StyleClass)
.Build()
.CssString);
}
/// <summary>
/// 创建组件所需要的 class 类。
/// </summary>
/// <param name="collection">css 类名称集合。</param>
protected override void CreateComponentCssClass(ICollection <string> collection)
{
if (DropDirection != Direction.Down)
{
collection.Add($"drop{DropDirection.ToString().ToLower()}");
}
if (IsActived)
{
collection.Add("show");
}
}