protected override void PopulateAttributeValues()
{
int?_tableId = null;
int?_fieldId = null;
string qTableId = Request.QueryString["tableId"];
string qFieldId = Request.QueryString["fieldId"];
if (!string.IsNullOrEmpty(qTableId))
{
_tableId = int.Parse(qTableId);
if (!string.IsNullOrEmpty(qFieldId))
{
_fieldId = int.Parse(qFieldId);
}
}
if (!_tableId.HasValue)
{
return;
}
// populate table field attributes
MetadataDa da = new MetadataDa();
DataTable dt = da.GetFieldMetadata(_tableId.Value, QueryDiseaseId);
// build a list of unique metadata tables with there associated metadata
var tableToAttributes = from row in dt.AsEnumerable()
let fieldId = (int)row[MetadataField.FieldId]
// restrict to single field (if applicable)
where !_fieldId.HasValue || fieldId == _fieldId
group row by fieldId into groupByField
let filedName = groupByField.First()[MetadataField.FieldName].ToString()
let fieldSort = groupByField.First()[MetadataField.FieldOrder].ToString()
// sort by field sort order, with null to bottom
let sort = !string.IsNullOrEmpty(fieldSort) ? int.Parse(fieldSort) : int.MaxValue
orderby sort ascending, filedName ascending
select new
{
TableId = _tableId,
FieldId = groupByField.Key,
FieldName = filedName,
//FieldSuppress = groupByField.First()[MetadataField.FieldSuppress],
//FieldOrder = groupByField.First()[MetadataField.FieldOrder],
Data = groupByField,
DiseaseAttributes = from record in groupByField
where !record.IsNull(DiseaseAttributeValue.DiseaseAttributeValueId)
select record
};
MetadataGrid.DataSource = tableToAttributes;
MetadataGrid.DataBind();
}
/// <summary>
/// Builds a list of available MetadataTables
/// </summary>
protected override void PopulateAttributeValues()
{
if (tableId.HasValue)
{
// populate main table attributes
PopulateTableAttributes();
// populate table field attributes
MetadataDa da = new MetadataDa();
DataTable dt = da.GetFieldMetadata(tableId.Value, QueryDiseaseId);
// build a list of unique metadata tables with there associated metadata
var tableToAttributes = from row in dt.AsEnumerable()
let fieldId = (int)row[MetadataField.FieldId]
group row by fieldId into groupByField
let filedName = groupByField.First()[MetadataField.FieldName].ToString()
let fieldOrderMetadata = from record in groupByField
let attributeName = record[MetadataFieldAttribute.AttributeName].ToString()
let attributeValue = record[MetadataFieldAttributeValue.AttributeValue].ToString()
// filter by FieldOrder attribute
where attributeName.Equals(MetadataField.FieldOrder, StringComparison.OrdinalIgnoreCase) && PageUtil.IsInteger(attributeValue)
// filter by disease (or defaul=NULL)
where (!QueryDiseaseId.HasValue && record.IsNull(Disease.DiseaseId)) || (QueryDiseaseId.HasValue && !record.IsNull(Disease.DiseaseId))
let fieldOrder = int.Parse(attributeValue)
select fieldOrder
// sort by field sort order, with null to bottom
let fieldOrder = fieldOrderMetadata.Count() > 0 ? fieldOrderMetadata.First() : int.MaxValue
//let sort = !string.IsNullOrEmpty(fieldSort) ? int.Parse(fieldSort) : int.MaxValue
orderby fieldOrder ascending, filedName ascending
select new
{
TableId = tableId,
FieldId = groupByField.Key,
FieldName = filedName,
FieldOrder = fieldOrder,
//FieldSuppress = false,
Data = groupByField,
DiseaseAttributes = from record in groupByField
where !record.IsNull(DiseaseAttributeValue.DiseaseAttributeValueId)
select record
};
MetadataGrid.DataSource = tableToAttributes;
MetadataGrid.DataBind();
// build fields without metadata
MetadataTable biz = new MetadataTable();
biz.Get(tableId.Value);
MetadataNewDa MNDa = new MetadataNewDa();
DataTable cols = MNDa.GetTableColumns(tableId.Value, biz[MetadataTable.TableName_Field].ToString());
// build a list of actual fields not yet assigned metadata
var nonMetadataFields = from row in cols.AsEnumerable()
select new
{
COLUMN_NAME = row["COLUMN_NAME"].ToString(),
DATA_TYPE = row["DATA_TYPE"].ToString(),
CHAR_MAX_LEN = row["CHAR_MAX_LEN"].ToString(),
IS_VIRTUAL = false
};
// build blank rows for new virtual fields
var blankVirtualFields = from i in Enumerable.Range(0, 1)
select new
{
COLUMN_NAME = string.Empty,
DATA_TYPE = string.Empty,
CHAR_MAX_LEN = string.Empty,
IS_VIRTUAL = true
};
var dataSource = nonMetadataFields.Concat(blankVirtualFields);
NonMetadataFields.DataSource = dataSource;
NonMetadataFields.DataBind();
}
}