/// <summary>
/// 获取产品
/// </summary>
/// <param name="manufacturerID">厂商ID，为null时不做查询条件。</param>
/// <param name="categoryID">类别ID，为null时不做查询条件。</param>
/// <param name="typeID">类型ID，为null时不做查询条件。</param>
/// <param name="name">产品名称，模糊匹配。</param>
/// <param name="description">描述，模糊匹配。</param>
/// <param name="pageSize">页大小</param>
/// <param name="pageIndex">页索引</param>
/// <returns></returns>
public DataTable GetProduct(int? manufacturerID, int? categoryID, int? typeID, string name, string description, int pageSize, int pageIndex)
{
return null;
}

public class QueryProduct
{
private int? manufacturerID;

/// <summary>
/// 厂商ID，为null时不做查询条件。
/// </summary>
public int? ManufacturerID
{
get { return manufacturerID; }
set { manufacturerID = value; }
}

private int? categoryID;

/// <summary>
/// 类别ID，为null时不做查询条件。
/// </summary>
public int? CategoryID
{
get { return categoryID; }
set { categoryID = value; }
}

private int? typeID;

/// <summary>
/// 类型ID，为null时不做查询条件。
/// </summary>
public int? TypeID
{
get { return typeID; }
set { typeID = value; }
}

private string name;

/// <summary>
/// 产品名称，模糊匹配。
/// </summary>
public string Name
{
get { return name; }
set { name = value; }
}

private string description;

/// <summary>
/// 描述，模糊匹配。
/// </summary>
public string Description
{
get { return description; }
set { description = value; }
}

private int pageSize;

/// <summary>
/// 页大小
/// </summary>
public int PageSize
{
get { return pageSize; }
set { pageSize = value; }
}

private int pageIndex;

/// <summary>
/// 页索引
/// </summary>
public int PageIndex
{
get { return pageIndex; }
set { pageIndex = value; }
}
}

/// <summary>
/// 获取产品
/// </summary>
/// <param name="query">查询条件</param>
/// <returns></returns>
public DataTable GetProduct(QueryProduct query)
{
return null;
}