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C# SqlDataReader.GetBoolean方法代碼示例

本文整理匯總了C#中System.Data.SqlClient.SqlDataReader.GetBoolean方法的典型用法代碼示例。如果您正苦於以下問題:C# SqlDataReader.GetBoolean方法的具體用法?C# SqlDataReader.GetBoolean怎麽用?C# SqlDataReader.GetBoolean使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在System.Data.SqlClient.SqlDataReader的用法示例。


在下文中一共展示了SqlDataReader.GetBoolean方法的1個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的C#代碼示例。

示例1: Main

//引入命名空間
using System;
using System.Data;
using System.Data.SqlClient;

class StronglyTypedColumnValues {
    public static void Main() {
        SqlConnection mySqlConnection = new SqlConnection("server=localhost;database=Northwind;uid=sa;pwd=sa");
        SqlCommand mySqlCommand = mySqlConnection.CreateCommand();
        mySqlCommand.CommandText =
          "SELECT TOP 5 ProductID, ProductName, UnitPrice, " +
          "UnitsInStock, Discontinued " +
          "FROM Products " +
          "ORDER BY ProductID";

        mySqlConnection.Open();

        SqlDataReader productsSqlDataReader =
          mySqlCommand.ExecuteReader();

        int productIDColPos = productsSqlDataReader.GetOrdinal("ProductID");
        int productNameColPos = productsSqlDataReader.GetOrdinal("ProductName");
        int unitPriceColPos = productsSqlDataReader.GetOrdinal("UnitPrice");
        int unitsInStockColPos = productsSqlDataReader.GetOrdinal("UnitsInStock");
        int discontinuedColPos = productsSqlDataReader.GetOrdinal("Discontinued");

        Console.WriteLine("ProductID .NET type = " + productsSqlDataReader.GetFieldType(productIDColPos));
        Console.WriteLine("ProductName .NET type = " + productsSqlDataReader.GetFieldType(productNameColPos));
        Console.WriteLine("UnitPrice .NET type = " + productsSqlDataReader.GetFieldType(unitPriceColPos));
        Console.WriteLine("UnitsInStock .NET type = " + productsSqlDataReader.GetFieldType(unitsInStockColPos));
        Console.WriteLine("Discontinued .NET type = " + productsSqlDataReader.GetFieldType(discontinuedColPos));
        Console.WriteLine("ProductID database type = " + productsSqlDataReader.GetDataTypeName(productIDColPos));
        Console.WriteLine("ProductName database type = " + productsSqlDataReader.GetDataTypeName(productNameColPos));
        Console.WriteLine("UnitPrice database type = " + productsSqlDataReader.GetDataTypeName(unitPriceColPos));
        Console.WriteLine("UnitsInStock database type = " + productsSqlDataReader.GetDataTypeName(unitsInStockColPos));
        Console.WriteLine("Discontinued database type = " + productsSqlDataReader.GetDataTypeName(discontinuedColPos));

        while (productsSqlDataReader.Read()) {
            int productID = productsSqlDataReader.GetInt32(productIDColPos);
            Console.WriteLine("productID = " + productID);

            string productName = productsSqlDataReader.GetString(productNameColPos);
            Console.WriteLine("productName = " + productName);

            decimal unitPrice = productsSqlDataReader.GetDecimal(unitPriceColPos);
            Console.WriteLine("unitPrice = " + unitPrice);

            short unitsInStock = productsSqlDataReader.GetInt16(unitsInStockColPos);
            Console.WriteLine("unitsInStock = " + unitsInStock);

            bool discontinued = productsSqlDataReader.GetBoolean(discontinuedColPos);
            Console.WriteLine("discontinued = " + discontinued);
        }
        productsSqlDataReader.Close();
        mySqlConnection.Close();
    }
}
開發者ID:C#程序員,項目名稱:System.Data.SqlClient,代碼行數:57,代碼來源:SqlDataReader.GetBoolean


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