/// <summary>
/// 从sourceItem构造
/// </summary>
/// <param name="sourceItem"></param>
public SqlClauseBuilderItemOrd(IOrderByRequestItem sourceItem)
{
sourceItem.NullCheck("sourceItem");
this.dataField = sourceItem.DataField;
this.sortDirection = sourceItem.SortDirection;
}
/// <summary>
/// 从源复制
/// </summary>
/// <param name="source"></param>
public void CopyFrom(IOrderByRequestItem source)
{
if (source != null)
{
this.DataField = source.DataField;
this.SortDirection = source.SortDirection;
}
}
/// <summary>
/// 添加一个构造项
/// </summary>
/// <param name="dataField">操作的数据</param>
/// <param name="sortDirection">排序方式</param>
public void AppendItem(string dataField, FieldSortDirection sortDirection)
{
SqlClauseBuilderItemOrd item = new SqlClauseBuilderItemOrd();
item.DataField = dataField;
item.SortDirection = sortDirection;
List.Add(item);
}