static internal List <SqlSchemaInfo> GetSchemaInfo(System.Data.Odbc.OdbcConnection con, List <SqlSchemaInfo> schemaList)
{
try
{
DataTable tbl = con.GetSchema(System.Data.Odbc.OdbcMetaDataCollectionNames.Tables);
foreach (DataRow row in tbl.Rows)
{
SqlSchemaInfo ssi = new SqlSchemaInfo();
ssi.Type = "TABLE";
ssi.Name = (string)row["table_name"];
schemaList.Add(ssi);
}
tbl = con.GetSchema(System.Data.Odbc.OdbcMetaDataCollectionNames.Views);
foreach (DataRow row in tbl.Rows)
{
SqlSchemaInfo ssi = new SqlSchemaInfo();
ssi.Type = "VIEW";
ssi.Name = (string)row["table_name"];
schemaList.Add(ssi);
}
}
catch
{
}
schemaList.Sort();
return(schemaList);
}
static internal List <SqlSchemaInfo> GetSchemaInfo(System.Data.SqlClient.SqlConnection con, List <SqlSchemaInfo> schemaList)
{
try
{
DataTable tbl = con.GetSchema(System.Data.SqlClient.SqlClientMetaDataCollectionNames.Tables);
foreach (DataRow row in tbl.Rows)
{
SqlSchemaInfo ssi = new SqlSchemaInfo();
ssi.Type = "TABLE";
string schema = row["table_schema"] as string;
if (schema != null && schema != "dbo")
{
ssi.Name = string.Format("{0}.{1}", schema, (string)row["table_name"]);
}
else
{
ssi.Name = (string)row["table_name"];
}
schemaList.Add(ssi);
}
tbl = con.GetSchema(System.Data.SqlClient.SqlClientMetaDataCollectionNames.Views);
foreach (DataRow row in tbl.Rows)
{
SqlSchemaInfo ssi = new SqlSchemaInfo();
ssi.Type = "VIEW";
string schema = row["table_schema"] as string;
if (schema != null && schema != "dbo")
{
ssi.Name = string.Format("{0}.{1}", schema, (string)row["table_name"]);
}
else
{
ssi.Name = (string)row["table_name"];
}
schemaList.Add(ssi);
}
}
catch
{
}
schemaList.Sort();
return(schemaList);
}
static internal List <SqlSchemaInfo> GetSchemaInfo(string dataProvider, string connection)
{
List <SqlSchemaInfo> schemaList = new List <SqlSchemaInfo>();
IDbConnection cnSQL = null;
IDbCommand cmSQL = null;
IDataReader dr = null;
Cursor saveCursor = Cursor.Current;
Cursor.Current = Cursors.WaitCursor;
// Get the schema information
try
{
int ID_TABLE = 0;
int ID_TYPE = 1;
// Open up a connection
cnSQL = RdlEngineConfig.GetConnection(dataProvider, connection);
if (cnSQL == null)
{
MessageBox.Show(string.Format("Unable to connect using dataProvider '{0}'", dataProvider), "SQL Error");
return(schemaList);
}
cnSQL.Open();
// Take advantage of .Net metadata if available
if (cnSQL is System.Data.SqlClient.SqlConnection)
{
return(GetSchemaInfo((System.Data.SqlClient.SqlConnection)cnSQL, schemaList));
}
if (cnSQL is System.Data.Odbc.OdbcConnection)
{
return(GetSchemaInfo((System.Data.Odbc.OdbcConnection)cnSQL, schemaList));
}
if (cnSQL is System.Data.OleDb.OleDbConnection)
{
return(GetSchemaInfo((System.Data.OleDb.OleDbConnection)cnSQL, schemaList));
}
// Obtain the query needed to get table/view list
string sql = RdlEngineConfig.GetTableSelect(dataProvider, cnSQL);
if (sql == null || sql.Length == 0) // when no query string; no meta information available
{
return(schemaList);
}
// Obtain the query needed to get table/view list
cmSQL = cnSQL.CreateCommand();
cmSQL.CommandText = sql;
dr = cmSQL.ExecuteReader();
string type = "TABLE";
while (dr.Read())
{
SqlSchemaInfo ssi = new SqlSchemaInfo();
if (ID_TYPE >= 0 &&
dr.FieldCount < ID_TYPE &&
(string)dr[ID_TYPE] == "VIEW")
{
type = "VIEW";
}
ssi.Type = type;
ssi.Name = (string)dr[ID_TABLE];
schemaList.Add(ssi);
}
}
catch (SqlException sqle)
{
MessageBox.Show(sqle.Message, "SQL Error");
}
catch (Exception e)
{
MessageBox.Show(e.InnerException == null? e.Message: e.InnerException.Message, "Error");
}
finally
{
if (cnSQL != null)
{
cnSQL.Close();
if (cmSQL != null)
{
cmSQL.Dispose();
}
if (dr != null)
{
dr.Close();
}
}
Cursor.Current = saveCursor;
}
return(schemaList);
}
