public static CatalogNodeCollection LoadForCategory(Int32 categoryId, int maximumRows, int startRowIndex, string sortExpression)
{
//DEFAULT SORT EXPRESSION
if (string.IsNullOrEmpty(sortExpression))
{
sortExpression = "OrderBy";
}
//CREATE THE DYNAMIC SQL TO LOAD OBJECT
StringBuilder selectQuery = new StringBuilder();
selectQuery.Append("SELECT");
if (maximumRows > 0)
{
selectQuery.Append(" TOP " + (startRowIndex + maximumRows).ToString());
}
selectQuery.Append(" " + CatalogNode.GetColumnNames(string.Empty));
selectQuery.Append(" FROM ac_CatalogNodes");
selectQuery.Append(" WHERE CategoryId = @categoryId");
selectQuery.Append(" ORDER BY " + sortExpression);
Database database = Token.Instance.Database;
DbCommand selectCommand = database.GetSqlStringCommand(selectQuery.ToString());
database.AddInParameter(selectCommand, "@categoryId", System.Data.DbType.Int32, categoryId);
//EXECUTE THE COMMAND
CatalogNodeCollection results = new CatalogNodeCollection();
int thisIndex = 0;
int rowCount = 0;
using (IDataReader dr = database.ExecuteReader(selectCommand))
{
while (dr.Read() && ((maximumRows < 1) || (rowCount < maximumRows)))
{
if (thisIndex >= startRowIndex)
{
CatalogNode catalogNode = new CatalogNode();
CatalogNode.LoadDataReader(catalogNode, dr);
results.Add(catalogNode);
rowCount++;
}
thisIndex++;
}
dr.Close();
}
return(results);
}
/// <summary>
/// Gets the children for a given category.
/// </summary>
/// <param name="categoryId">Category to get children for</param>
/// <param name="level">Level of the specified category</param>
/// <param name="exclude">ID of the category to exclude from the collection; 0 if none.</param>
/// <param name="publicOnly">If true, only include public categories in result set.</param>
/// <returns></returns>
private static CategoryLevelNodeCollection GetCategoryLevels(int categoryId, int level, int exclude, bool publicOnly)
{
CategoryLevelNodeCollection results = new CategoryLevelNodeCollection();
CatalogNodeCollection catalogNodes = CatalogDataSource.Search(categoryId, string.Empty, true, publicOnly, false, CatalogNodeTypeFlags.Category);
foreach (CatalogNode node in catalogNodes)
{
if (node.CatalogNodeId != exclude)
{
CategoryLevelNode levelNode = new CategoryLevelNode();
levelNode.CategoryId = node.CatalogNodeId;
levelNode.CategoryLevel = level;
levelNode.Name = node.Name;
levelNode.ParentId = categoryId;
results.Add(levelNode);
results.AddRange(GetCategoryLevels(levelNode.CategoryId, level + 1, exclude, publicOnly));
}
}
return(results);
}
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