Add project files.

2021-05-05 15:36:28 +01:00
parent 949836d24c
commit a4cf706eb3
353 changed files with 60029 additions and 0 deletions
@@ -0,0 +1,200 @@
+using System;
+using System.Data;
+using System.Data.Common;
+using Sarand.Net.Standard.Base.App;
+using Sarand.Net.Standard.Base.Core;
+using Sarand.Net.Standard.Base.Dbas;
+using Sarand.Net.Standard.Dbas.Base;
+
+namespace Sarand.Net.Standard.Dbas.Data
+{
+	//=======================================================================
+	public class DbResultSet_DataTableReader : DbResultSet
+	{
+		//-------------------------------------------------------------------
+		// Data members.
+		private SacsDatabase database = null;
+		private String query = String.Empty;
+		private DbConnection dbConnection = null;
+		private DbCommand dbCommand = null;
+		private DbDataAdapter dbDataAdapter = null;
+		private DataTableReader dataTableReader = null;
+		//-------------------------------------------------------------------
+		// Construction.
+		public DbResultSet_DataTableReader (SacsDatabase database, String query)
+		{
+			this.database = database;
+			this.query = query;
+			ExecuteQuery();
+		}
+		//-------------------------------------------------------------------
+		// Execute query.
+		private void ExecuteQuery ()
+		{
+			ClearErrorState();
+			String fn = GetType().Name + ".ExecuteQuery";
+			Close();
+			try
+			{
+				dbConnection = database.CreateConnection();
+				dbCommand = dbConnection.CreateCommand();
+				dbDataAdapter = database.CreateDataAdapter();
+				dbDataAdapter.SelectCommand = dbCommand;
+				dbDataAdapter.SelectCommand.CommandText = database.GetSelectQueryPrefix() + query;
+				DataTable dataTable = new DataTable();
+				dbDataAdapter.Fill(dataTable);
+				dataTableReader = new DataTableReader(dataTable);
+				Log(fn, GetType().Name + ".ExecuteQuery Query: " + query + (HasRows ? " [has rows]" : " [no rows]"), SaMessageLevel.Debug);
+			}
+			catch (Exception exc)
+			{
+				SetErrorState(exc.GetType().Name + ": " + exc.Message);
+				SaLogger.Warn(fn + " " + exc.GetType().Name + ": " + exc.Message + "\n\t Query: " + query, true);
+			}
+		}
+		//-------------------------------------------------------------------
+		protected override void Dispose (bool disposing)
+		{
+			Close();
+		}
+		public override void Close ()
+		{
+			// Dispose of database objects.
+			if (dataTableReader != null) dataTableReader.Close();
+			dataTableReader = null;
+			if (dbDataAdapter != null) dbDataAdapter.Dispose();
+			if (dbCommand != null) dbCommand.Dispose();
+			if (dbConnection != null) dbConnection.Dispose();
+			dataTableReader = null;
+			dbDataAdapter = null;
+			dbCommand = null;
+			dbConnection = null;
+		}
+		//-------------------------------------------------------------------
+		// Navigation.
+		public override bool NextRecord ()
+		{
+			// Move to next result.
+			bool nextRecord = false;
+			if (dataTableReader != null)
+			{
+				nextRecord = dataTableReader.Read();
+				if (!nextRecord)
+				{
+					Close();
+				}
+			}
+			return nextRecord;
+		}
+		//-------------------------------------------------------------------
+		// Attributes.
+		public override int FieldCount
+		{
+			get
+			{
+				if (dataTableReader != null)
+					return dataTableReader.FieldCount;
+				return 0;
+			}
+		}
+		public override bool HasRows
+		{
+			get
+			{
+				if (dataTableReader != null)
+					return dataTableReader.HasRows;
+				return false;
+			}
+		}
+		public override int GetOrdinal (String columnName)
+		{
+			if (dataTableReader != null)
+				return dataTableReader.GetOrdinal(columnName);
+			return -1;
+		}
+		public override String GetDataTypeName (int columnIdx)
+		{
+			if (dataTableReader != null)
+				return dataTableReader.GetDataTypeName(columnIdx);
+			return String.Empty;
+		}
+		public override String GetName (int columnIdx)
+		{
+			if (dataTableReader != null)
+				return dataTableReader.GetName(columnIdx);
+			return String.Empty;
+		}
+		public override bool IsDbNull (int columnIdx)
+		{
+			return (GetValue(columnIdx) is System.DBNull);
+		}
+		public override object GetValue (int columnIdx)
+		{
+			if (dataTableReader != null)
+				return dataTableReader.GetValue(columnIdx);
+			return false;
+		}
+		public override bool GetBoolean (int columnIdx)
+		{
+			if (dataTableReader != null)
+				return dataTableReader.GetBoolean(columnIdx);
+			return false;
+		}
+		public override byte GetByte (int columnIdx)
+		{
+			if (dataTableReader != null)
+				return dataTableReader.GetByte(columnIdx);
+			return 0;
+		}
+		public override short GetInt16 (int columnIdx)
+		{
+			if (dataTableReader != null)
+				return dataTableReader.GetInt16(columnIdx);
+			return 0;
+		}
+		public override int GetInt32 (int columnIdx)
+		{
+			if (dataTableReader != null)
+				return dataTableReader.GetInt32(columnIdx);
+			return 0;
+		}
+		public override long GetInt64 (int columnIdx)
+		{
+			if (dataTableReader != null)
+				return dataTableReader.GetInt64(columnIdx);
+			return 0;
+		}
+		public override float GetFloat (int columnIdx)
+		{
+			if (dataTableReader != null)
+				return dataTableReader.GetFloat(columnIdx);
+			return 0.0f;
+		}
+		public override double GetDouble (int columnIdx)
+		{
+			if (dataTableReader != null)
+				return dataTableReader.GetDouble(columnIdx);
+			return 0.0;
+		}
+		public override decimal GetDecimal (int columnIdx)
+		{
+			if (dataTableReader != null)
+				return dataTableReader.GetDecimal(columnIdx);
+			return 0.0m;
+		}
+		public override String GetString (int columnIdx)
+		{
+			if (dataTableReader != null)
+				return dataTableReader.GetString(columnIdx);
+			return String.Empty;
+		}
+		public override DateTime GetDateTime (int columnIdx)
+		{
+			if (dataTableReader != null)
+				return dataTableReader.GetDateTime(columnIdx);
+			return DateTime.MinValue;
+		}
+		//-------------------------------------------------------------------
+	}
+	//=======================================================================
+}