internal BaseLevelTree(ITableScheme scheme, LevelTreeDefinition levelDef,
IDbDataSource source, ILevelProvider provider)
{
fSelector = new LevelSelector(scheme, levelDef, source);
fProvider = provider;
fDefinition = levelDef;
}
public LevelScheme(ITableScheme sourceScheme, LevelTreeDefinition levelDef)
{
fFields = new RegNameList <FieldItem>();
fFields.Add(new KeyFieldItem(sourceScheme[levelDef.IdField]));
fFields.Add(new FieldItem(sourceScheme[levelDef.NameField]));
TreeScheme.AddFakeField(fFields, sourceScheme);
TableName = sourceScheme.TableName;
}
internal static IParamBuilder GetLevelBuilder(TableSelector selector,
LevelTreeDefinition treeDef, int level, string value, ILevelProvider provider)
{
IParamBuilder[] builders = new IParamBuilder[level + 1];
IFieldInfo idField = selector.GetFieldInfo(treeDef.IdField);
for (int i = 0; i <= level; ++i)
{
string likeValue = provider.GetSqlLikeValue(treeDef, i, value);
builders[i] = SqlParamBuilder.CreateSingleSql(selector.Context, idField, "LIKE",
treeDef.IdField + i, likeValue);
}
IParamBuilder builder = SqlParamBuilder.CreateParamBuilderWithOr(builders);
return(builder);
}
public LevelDataRowTreeNode(ITree tree, DataRow row,
LevelTreeDefinition treeDef, ILevelProvider provider)
: base(tree, row)
{
Id = row[treeDef.IdField].ToString();
Name = row[treeDef.NameField].ToString();
int level = provider.GetLevel(treeDef, Id);
ParentId = provider.GetParentId(treeDef, level, Id);
if (level < treeDef.TotalLevel - 1)
{
HasChild = true;
NodeType = level == 0 ? TreeNodeType.Root : TreeNodeType.Branch;
}
else
{
NodeType = TreeNodeType.Leaf;
}
}
public LevelTree(ITableScheme scheme, LevelTreeDefinition levelDef, IDbDataSource source)
: base(scheme, levelDef, source, LevelProvider.Provider)
{
}
protected abstract ITree CreateTree(ITableScheme scheme,
LevelTreeDefinition treeDef, IDbDataSource dataSource);
public LevelSelector(ITableScheme scheme, LevelTreeDefinition levelDef, IDbDataSource source)
: base(new LevelScheme(scheme, levelDef), source)
{
TreeSelector.SetFakeDelete(this, scheme);
}
protected override ITree CreateTree(ITableScheme scheme,
LevelTreeDefinition treeDef, IDbDataSource dataSource)
{
return(new LevelTree(scheme, treeDef, dataSource));
}
