///-------------------------------------------------------------------------------------------------
/// <summary> Loads category trees. </summary>
///
/// <remarks> SV Milovanov, 30.01.2018. </remarks>
///
/// <param name="parentNode"> The parent node. </param>
/// <param name="parentValue"> The parent value. </param>
/// <param name="prevValue"> (Optional) The previous value. </param>
///-------------------------------------------------------------------------------------------------
void LoadCategoryTrees(CategoryTree parentNode, string parentValue, string prevValue = null)
{
_DCT.Execute(data =>
{
var byDataId = false;
if (string.IsNullOrEmpty(parentValue))
{
var div = WebWorker.WebDocument.GetElementsByTagName("div").Cast <HtmlElement>()
.LastOrDefault(q => q.GetAttribute("className") == "form-category js-form-category_param");
if (div != null)
{
parentValue = div.GetAttribute("data-param-id");
byDataId = true;
}
}
if (string.IsNullOrEmpty(parentValue) || parentValue == prevValue)
{
return;
}
if (!checkedIds.Contains(parentValue))
{
checkedIds.Add(parentValue);
}
else if (byDataId)
{
return;
}
var level = byDataId
? WebWorker.WebDocument.GetElementsByTagName("input").Cast <HtmlElement>()
.Where(q => q.GetAttribute("type") == "radio" && q.GetAttribute("name") == $"params[{parentValue}]")
: WebWorker.WebDocument.GetElementsByTagName("input").Cast <HtmlElement>()
.Where(q => q.GetAttribute("type") == "radio" && q.GetAttribute("data-parent-id") == parentValue);
foreach (var element in level)
{
//var elementValue = element.GetAttribute("value");
var node = new CategoryTree(element.GetAttribute("title"));
parentNode.AddChild(node);
element.InvokeMember("click");
Thread.Sleep(1000);
LoadCategoryTrees(node, null, parentValue);
}
});
}