problem with dataadapter

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i am using oledbdataadapter..how to store multiple table in adapter...help me?

Posted 30-Oct-12 21:11pm

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Philip Stuyck 31-Oct-12 3:39am

You need an adapter per table. What you can do however is make it use multiple queries, but the logical layout of the result set must be the same. I am talking about strongtyped adapters here that you can configure using the GUI of VS in the dataset designer. For a normal adapter you can attach only 4 commands to it. One for retrieval, one for insert, one for delete and one for update.

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SoumenBanerjee · Answer 1 · 2012-10-30T22:00:00

You can try this as it written in following method...

using System.Configuration;
using System.Data.OleDb;

public DataSet getYourData(int paramid)
{
DataSet _ds = new DataSet();
OleDbConnection _conn = null;
OleDbCommand _cmd = null;
OleDbDataAdapter _da = null;

try
{
string constr=ConfigurationManager.ConnectionStrings["SqlConnectionString"].ConnectionString;
_conn = new OleDbConnection(constr);
_cmd = new OleDbCommand("sp_get_YourData/Your query text", _conn);
_cmd.CommandTimeout = 0;
_cmd.CommandType = CommandType.StoredProcedure;// or use CommandType.Text;

_da = new OleDbDataAdapter(_cmd);
//adding parameters to the commandojbect
_cmd.Parameters.Add(new SqlParameter("@paramid", SqlDbType.Int));
_cmd.Parameters["@paramid"].Value = paramid;

_da.TableMappings.Add("SourceTable", "DatasetTableName");
_da.TableMappings.Add("SourceTable1", "DatasetTableName1");
_da.TableMappings.Add("SourceTable2", "DatasetTableName2");
_da.TableMappings.Add("SourceTable3", "DatasetTableName3");
_da.TableMappings.Add("SourceTable4", "DatasetTableName4");

_ds.EnforceConstraints = false;

_da.Fill(_ds);
}
catch (OleDbException ex)
{
throw ex;
}
catch (Exception ex)
{
throw ex;
}
finally
{
if (_cmd != null)
{
_cmd.Dispose();
_cmd = null;
}
if (_da != null)
{
_da.Dispose();
_da = null;
}
}

return _ds;
}