/// <summary> 初始化操作
/// </summary>
private void Initialize()
{
Assertor.AreNullOrWhiteSpace(ConnectionString, "ConnectionString");
Assertor.AreNullOrWhiteSpace(ProviderName, "ProviderName");
ConnectorKey = string.Concat(ProviderName, "\f", ConnectionString);
_isInitialized = true;
}
/// <summary> 创建并返回 IDBHelper
/// </summary>
/// <param name="connectionString">数据连接字符串</param>
/// <param name="providerName">提供程序的名称</param>
public static IDBHelper Create(string connectionString, string providerName)
{
Assertor.AreNullOrWhiteSpace(connectionString, "connectionString");
Assertor.AreNullOrWhiteSpace(providerName, "providerName");
var helper = CreateDBHelper(providerName);
helper.ConnectionString = connectionString;
helper.ProviderName = providerName;
return(helper);
}
/// <summary> 创建并返回 IDBHelper
/// </summary>
/// <param name="connectionName">配置节点的名称</param>
public static IDBHelper Create(string connectionName)
{
Assertor.AreNullOrWhiteSpace(connectionName, "connectionName");
var config = System.Configuration.ConfigurationManager.ConnectionStrings[connectionName];
if (config == null)
{
throw new KeyNotFoundException("不存在名为 " + connectionName + " 的节点");
}
var helper = CreateDBHelper(config.ProviderName);
helper.ConnectionString = config.ConnectionString;
helper.ProviderName = config.ProviderName;
helper.Name = config.Name;
return(helper);
}
public VarObejct GetOutValue(string name)
{
Assertor.AreNullOrWhiteSpace(name, "name");
if (_parameters == null)
{
throw new InvalidOperationException("尚未执行查询,无法获得返回值");
}
var length = _parameters.Length;
for (int i = 0; i < length; i++)
{
if (_parameters[i].ParameterName == name)
{
return(new VarObejct(_parameters[i].Value));
}
}
throw new KeyNotFoundException("没有找到该名称的参数");
}
