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158 lines
4.6 KiB
158 lines
4.6 KiB
2 years ago
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using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Data.Odbc;
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using System.Text;
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namespace SqlSugar.Odbc
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{
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/// <summary>
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/// 数据填充器
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/// </summary>
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public class OdbcDataAdapter : IDataAdapter
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{
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private OdbcCommand command;
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private string sql;
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private OdbcConnection _sqlConnection;
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/// <summary>
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/// SqlDataAdapter
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/// </summary>
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/// <param name="command"></param>
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public OdbcDataAdapter(OdbcCommand command)
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{
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this.command = command;
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}
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public OdbcDataAdapter()
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{
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}
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/// <summary>
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/// SqlDataAdapter
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/// </summary>
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/// <param name="sql"></param>
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/// <param name="_sqlConnection"></param>
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public OdbcDataAdapter(string sql, OdbcConnection _sqlConnection)
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{
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this.sql = sql;
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this._sqlConnection = _sqlConnection;
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}
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/// <summary>
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/// SelectCommand
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/// </summary>
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public OdbcCommand SelectCommand
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{
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get
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{
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if (this.command == null)
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{
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var conn = (OdbcConnection)this._sqlConnection;
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this.command = conn.CreateCommand();
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this.command.CommandText = sql;
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}
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return this.command;
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}
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set
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{
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this.command = value;
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}
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}
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/// <summary>
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/// Fill
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/// </summary>
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/// <param name="dt"></param>
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public void Fill(DataTable dt)
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{
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if (dt == null)
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{
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dt = new DataTable();
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}
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var columns = dt.Columns;
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var rows = dt.Rows;
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using (var dr = command.ExecuteReader())
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{
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for (int i = 0; i < dr.FieldCount; i++)
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{
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string name = dr.GetName(i).Trim();
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if (!columns.Contains(name))
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columns.Add(new DataColumn(name, dr.GetFieldType(i)));
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else
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{
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columns.Add(new DataColumn(name + i, dr.GetFieldType(i)));
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}
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}
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while (dr.Read())
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{
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DataRow daRow = dt.NewRow();
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for (int i = 0; i < columns.Count; i++)
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{
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daRow[columns[i].ColumnName] = dr.GetValue(i);
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}
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dt.Rows.Add(daRow);
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}
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}
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dt.AcceptChanges();
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}
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/// <summary>
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/// Fill
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/// </summary>
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/// <param name="ds"></param>
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public void Fill(DataSet ds)
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{
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if (ds == null)
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{
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ds = new DataSet();
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}
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using (var dr = command.ExecuteReader())
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{
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do
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{
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var dt = new DataTable();
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var columns = dt.Columns;
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var rows = dt.Rows;
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for (int i = 0; i < dr.FieldCount; i++)
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{
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string name = dr.GetName(i).Trim();
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if (dr.GetFieldType(i).Name == "DateTime")
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{
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if (!columns.Contains(name))
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columns.Add(new DataColumn(name, UtilConstants.DateType));
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else
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{
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columns.Add(new DataColumn(name + i, UtilConstants.DateType));
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}
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}
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else
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{
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if (!columns.Contains(name))
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columns.Add(new DataColumn(name, dr.GetFieldType(i)));
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else
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{
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columns.Add(new DataColumn(name + i, dr.GetFieldType(i)));
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}
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}
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}
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while (dr.Read())
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{
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DataRow daRow = dt.NewRow();
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for (int i = 0; i < columns.Count; i++)
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{
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daRow[columns[i].ColumnName] = dr.GetValue(i);
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}
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dt.Rows.Add(daRow);
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}
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dt.AcceptChanges();
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ds.Tables.Add(dt);
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} while (dr.NextResult());
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}
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}
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}
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}
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