/// <summary>
/// Construct list for tree view.
/// </summary>
/// <typeparam name="TModel">Type of model.</typeparam>
/// <typeparam name="TProperty">Type of selected property.</typeparam>
/// <param name="helper">Html helper.</param>
/// <param name="expression">Expression which selects property.</param>
/// <param name="source">Soruce of tree view.</param>
/// <returns>Tree view list as FluentTagBuilder.</returns>
private static FluentTagBuilder ConstructList <TModel, TProperty>(
this HtmlHelper <TModel> helper,
Expression <Func <TModel, TProperty> > expression,
TreeViewSource <TProperty> source)
where TProperty : struct
{
// CSS classes
string listCssClass = "tree-view-list";
string loadedCssClass = "tv-loaded";
// Construct tree view list
FluentTagBuilder treeViewList = new FluentTagBuilder("ul")
.AddCssClass(listCssClass);
// If there is not any item return
if (source == null ||
source.ItemList == null ||
source.ItemList.Count == 0)
{
return(treeViewList);
}
// If source is not empty add class
treeViewList.AddCssClass(loadedCssClass);
// Construct list items and add them to treeViewList
foreach (TreeViewItem <TProperty> listItemSource in source.ItemList)
{
FluentTagBuilder listItem = helper
.ConstructListItem(expression, listItemSource);
treeViewList.AppendChild(listItem);
}
return(treeViewList);
}
public void BindPermissionsToTreeView(List <SysRolePermission> permissions)
{
TreeViewSource.ForEach(x => x.IsChecked = false);
var nodes = new List <TriStateTreeViewNode>();
TreeViewSource.ForEach(x => nodes.AddRange(x.ConvertToList()));
foreach (var permission in permissions.FindAll(x => x.ElementInfo != null))
{
var node = nodes.FirstOrDefault(x => x.NodeType == ElementNodeType && x.ID == permission.ElementInfo.ElementID);
node.IsChecked = true;
}
}
/// <summary>
/// Construct tree view for selected property.
/// </summary>
/// <typeparam name="TModel">Type of model.</typeparam>
/// <typeparam name="TProperty">Type of selected property.</typeparam>
/// <param name="helper">Html helper.</param>
/// <param name="expression">Expression which selects property.</param>
/// <param name="source">Source for tree view.</param>
/// <param name="sourceUrl">Url to get child items using Ajax.</param>
/// <param name="searchExpression">Search expression to filter leaves.</param>
/// <returns>Constructed Tree view.</returns>
public static MvcHtmlString TreeViewFor <TModel, TProperty>(
this HtmlHelper <TModel> helper,
Expression <Func <TModel, TProperty> > expression,
TreeViewSource <TProperty> source,
string sourceUrl,
string searchExpression)
where TProperty : struct
{
// CSS classes
string treeViewCssClass = "tree-view";
string levelCssClassFormat = "level-{0}";
string errorCssClass = string.Format("{0}__error", treeViewCssClass);
string rootListCssClass = "root-list";
// Attribute keys
string levelAttribute = "data-tv-level";
string forAttribute = "data-tv-for";
string sourceUrlAttribute = "data-tv-source-url";
string searchExpresionAttribute = "data-tv-search-exp";
// Get model name from expression
string modelName = ExpressionHelper.GetExpressionText(expression);
// Construct root list
FluentTagBuilder rootList = helper.ConstructList(expression, source)
.AddCssClass(string.Format(levelCssClassFormat, "0"))
.AddCssClass(rootListCssClass)
.MergeAttribute(levelAttribute, "0");
// Construct tree view container
FluentTagBuilder treeViewContainer = new FluentTagBuilder("div")
.AppendChild(rootList)
.MergeAttribute(forAttribute, modelName)
.MergeAttribute(sourceUrlAttribute, sourceUrl)
.MergeAttribute(searchExpresionAttribute, searchExpression)
.AddCssClass(treeViewCssClass);
// Add error
MvcHtmlString validationMessage = helper.ValidationMessageFor(expression);
FluentTagBuilder errorSpan = new FluentTagBuilder("span")
.AddCssClass(errorCssClass)
.AppendChild(validationMessage);
treeViewContainer.AppendChild(errorSpan);
return(new MvcHtmlString(treeViewContainer.Render()));
}
public List <SysRolePermission> GetPermissionsFromUI()
{
var result = new List <SysRolePermission>();
var nodes = new List <TriStateTreeViewNode>();
TreeViewSource.ForEach(x => nodes.AddRange(x.ConvertToList()));
var allElements = SysPermissionProvider.GetInstance().AllSysModuleElements;
var elements = nodes.FindAll(x => x.NodeType == ElementNodeType && x.IsChecked == true);
foreach (var element in elements)
{
var permission = new SysRolePermission()
{
RoleID = RoleID,
ElementInfo = allElements.FirstOrDefault(x => x.ElementID == element.ID),
};
result.Add(permission);
}
var allModules = SysPermissionProvider.GetInstance().AllSysModules;
var modules = nodes.FindAll(x => x.NodeType == ModuleNodeType && x.IsChecked == true);
foreach (var module in modules)
{
var permission = new SysRolePermission()
{
RoleID = RoleID,
ModuleInfo = allModules.FirstOrDefault(x => x.ModuleID == module.ID),
};
result.Add(permission);
}
return(result);
}
