public ArrayList GetTableColumns(string tableName)
{
if (metadataCache.ContainsKey(this.htkey + ":" + tableName + ":Columns"))
{
return((ArrayList)metadataCache[this.htkey + ":" + tableName + ":Columns"]);
}
Connection target = new ConnectionClass();
target.GetType().InvokeMember("Open", BindingFlags.InvokeMethod, null, target, new object[] { this.connectionString });
if ((this.defaultDatabase != null) && (this.defaultDatabase != ""))
{
target.DefaultDatabase = this.defaultDatabase;
}
string str = tableName;
if (tableName.IndexOf(".") > 0)
{
string[] strArray = tableName.Split(new char[] { '.' });
if (strArray.Length == 2)
{
str = strArray[1];
}
}
object[] objArray3 = new object[4];
objArray3[2] = tableName;
object[] objArray = objArray3;
objArray3 = new object[3];
objArray3[2] = str;
object[] restrictions = objArray3;
Recordset recordset = target.OpenSchema(SchemaEnum.adSchemaColumns, restrictions, Missing.Value);
ArrayList list = new ArrayList();
while (!recordset.EOF)
{
string str2 = recordset.Fields["COLUMN_NAME"].Value.ToString();
DataFieldMetadata metadata = new DataFieldMetadata(recordset.Fields["TABLE_NAME"].Value.ToString(), recordset.Fields["COLUMN_NAME"].Value.ToString(), recordset.Fields["DATA_TYPE"].Value.ToString());
if (recordset.Fields["CHARACTER_MAXIMUM_LENGTH"].Value != null)
{
string s = recordset.Fields["CHARACTER_MAXIMUM_LENGTH"].Value.ToString();
if (s != string.Empty)
{
metadata.Size = int.Parse(s);
}
}
try
{
metadata.IsNullable = bool.Parse(recordset.Fields["IS_NULLABLE"].Value.ToString());
}
catch
{
metadata.IsNullable = false;
}
list.Add(metadata);
recordset.MoveNext();
}
metadataCache.Add(this.htkey + ":" + tableName + ":Columns", list);
recordset.Close();
target.Close();
return(list);
}
public DataFieldMetadata[] GetRecordsetSchema(string query)
{
string[] names = Enum.GetNames(typeof(DataTypeEnum));
Array values = Enum.GetValues(typeof(DataTypeEnum));
Recordset recordset = this.ReturnRecordSet(query);
DataFieldMetadata[] metadataArray = new DataFieldMetadata[recordset.Fields.Count];
for (int i = 0; i < recordset.Fields.Count; i++)
{
int index = Array.IndexOf <string>(names, recordset.Fields[i].Type.ToString());
object obj2 = values.GetValue(index);
metadataArray[i] = new DataFieldMetadata("tempTable", recordset.Fields[i].Name, obj2);
metadataArray[i].Size = recordset.Fields[i].DefinedSize;
}
recordset.Close();
this.FreeTempConnection();
return(metadataArray);
}