/// <summary>
/// 读取指定类型数据
/// </summary>
/// <param name="row">数据行</param>
/// <param name="columns">列集合</param>
/// <param name="columnName">列名称</param>
/// <param name="dbType">数据类型</param>
/// <returns>指定类型数据</returns>
protected Object LoadValue(DataRow row, DataColumnCollection columns, String columnName, DbType dbType)
{
if (columns.Contains(columnName) && !Convert.IsDBNull(row[columnName]))
{
return(DbConvert.ToValue(row[columnName], dbType));
}
else
{
return(DbConvert.GetDefaultValue(dbType));
}
}
/// <summary>
/// 读取指定类型数据
/// </summary>
/// <param name="args">对象创建参数</param>
/// <param name="columnName">列名称</param>
/// <param name="dataType">数据类型</param>
/// <returns>指定类型数据</returns>
protected Object LoadValue(EntityCreatingArgs args, String columnName, DataType dataType)
{
if (args.Columns.Contains(columnName) && !DbConvert.IsDBNull(args.Row[columnName]))
{
return(DbConvert.ToValue(args.Row[columnName], dataType));
}
else
{
return(DbConvert.GetDefaultValue(dataType));
}
}
