в 15:31, 26 мая 2010

2010-05-26T15:31:35Z

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2010-05-26T12:12:20Z

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==CommandBehavior.SchemaOnly==

<source lang="csharp">
using System;
using System.Data;
using System.Data.SqlClient;
class SchemaOnlyCommandBehavior {
public static void Main() {
SqlConnection mySqlConnection = new SqlConnection("server=localhost;database=Northwind;uid=sa;pwd=sa");
SqlCommand mySqlCommand = mySqlConnection.CreateCommand();
mySqlCommand.rumandText = "SELECT ProductID, ProductName, UnitPrice FROM Products WHERE ProductID = 1";
mySqlConnection.Open();
SqlDataReader productsSqlDataReader = mySqlCommand.ExecuteReader(CommandBehavior.SchemaOnly);
DataTable myDataTable = productsSqlDataReader.GetSchemaTable();
foreach (DataRow myDataRow in myDataTable.Rows) {
foreach (DataColumn myDataColumn in myDataTable.Columns) {
Console.WriteLine(myDataColumn + "= " + myDataRow[myDataColumn]);
if (myDataColumn.ToString() == "ProviderType") {
Console.WriteLine(myDataColumn + "= " + ((System.Data.SqlDbType)myDataRow[myDataColumn]));
}
}
}
productsSqlDataReader.Close();
mySqlConnection.Close();
}
}

</source>

==CommandBehavior.SingleRow==

<source lang="csharp">
using System;
using System.Data;
using System.Data.SqlClient;
class SingleRowCommandBehavior {
public static void Main() {
SqlConnection mySqlConnection = new SqlConnection("server=localhost;database=Northwind;uid=sa;pwd=sa");
SqlCommand mySqlCommand = mySqlConnection.CreateCommand();
mySqlCommand.rumandText = "SELECT ProductID, ProductName, QuantityPerUnit, UnitPrice FROM Products";
mySqlConnection.Open();
SqlDataReader mySqlDataReader = mySqlCommand.ExecuteReader(CommandBehavior.SingleRow);
while (mySqlDataReader.Read()) {
Console.WriteLine("mySqlDataReader[\" ProductID\"] = " + mySqlDataReader["ProductID"]);
Console.WriteLine("mySqlDataReader[\" ProductName\"] = " + mySqlDataReader["ProductName"]);
Console.WriteLine("mySqlDataReader[\" QuantityPerUnit\"] = " + mySqlDataReader["QuantityPerUnit"]);
Console.WriteLine("mySqlDataReader[\" UnitPrice\"] = " + mySqlDataReader["UnitPrice"]);
}
mySqlDataReader.Close();
mySqlConnection.Close();
}
}

</source>

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в 15:31, 26 мая 2010

Admin: 1 версия