/// <summary>
/// 解析過濾條件中的系統變數
/// </summary>
/// <returns></returns>
public GFilterItemCollection ParseVariable()
{
GFilterItemCollection oItems;
GFilterItem oItem;
oItems = new GFilterItemCollection();
foreach (GFilterItem item in this.FilterItems)
{
if (item.ComparisonOperator == EComparisonOperator.Variable)
{
oItem = ConvertItemForVariable(item);
}
else
{
oItem = item.Clone();
}
if (BaseFunc.IsNotNull(oItem))
{
oItems.Add(oItem);
}
}
// 移除無查詢值的條件
oItems.RemoveEmpty();
return(oItems);
}
/// <summary>
/// 建立物件複本
/// </summary>
/// <returns></returns>
public GFilterItemCollection Clone()
{
GFilterItemCollection items = new GFilterItemCollection();
foreach (GFilterItem item in this)
{
items.Add(item.Clone());
}
return(items);
}
/// <summary>
/// 加入成員。
/// </summary>
/// <param name="items">過濾條件項目集合。</param>
public void Add(GFilterItemCollection items)
{
// 集合無資料則離開
if (BaseFunc.IsEmpty(items))
{
return;
}
foreach (GFilterItem oItem in items)
{
Add(oItem);
}
}
/// <summary>
/// 解析並移除不需要的 [欄位變數] 過濾條件。
/// </summary>
/// <param name="programDefine">程式定義。</param>
public GFilterItemCollection ParseRemoveField(GProgramDefine programDefine)
{
GFilterItemCollection oFilterItems;
GFilterItem oFilterItem;
GFieldDefine oFieldDefine;
EVariableType oVariableType;
string sTableName;
string sFieldName;
oFilterItems = new GFilterItemCollection();
foreach (GFilterItem item in this.FilterItems)
{
// 產生過濾條件複本
oFilterItem = item.Clone();
// 解析變數值
this.VariableParser.Parse(item.FilterValue);
// 變數類型
oVariableType = this.VariableParser.VariableType;
if (oVariableType == EVariableType.Field || oVariableType == EVariableType.TableField)
{
// 拆解字串的資料表名稱及欄位名稱
StrFunc.StrSplitFieldName(this.VariableParser.Value, out sTableName, out sFieldName);
if (StrFunc.StrIsEmpty(sTableName))
{
sTableName = programDefine.ProgID;
}
// 只保留存在的 [欄位變數] 過濾條件
oFieldDefine = programDefine.FindField(sTableName, sFieldName);
if (BaseFunc.IsNotNull(oFieldDefine))
{
oFilterItems.Add(oFilterItem);
}
}
else
{
// 加入非 [欄位變數] 過濾條件
oFilterItems.Add(oFilterItem);
}
}
// 移除無查詢值的條件
oFilterItems.RemoveEmpty();
return(oFilterItems);
}
/// <summary>
/// 解析並移除 [欄位變數] 過濾條件，GridFilter 無資料集故需移除欄位變數。
/// </summary>
public GFilterItemCollection ParseRemoveField()
{
GFilterItemCollection oFilterItems;
oFilterItems = new GFilterItemCollection();
foreach (GFilterItem item in this.FilterItems)
{
// 解析變數值
this.VariableParser.Parse(item.FilterValue);
// 只保留系統變數及常數類型的過濾條件
if (this.VariableParser.VariableType == EVariableType.Variable ||
this.VariableParser.VariableType == EVariableType.Constant)
{
oFilterItems.Add(item.Clone());
}
}
return(oFilterItems);
}
/// <summary>
/// 結合新的資料過濾條件項目集合。
/// </summary>
/// <param name="filterItems">欲結合的資料過濾條件項目集合</param>
/// <param name="changeGroupNumber">改變條件群組編號</param>
public void CombineFilterItems(GFilterItemCollection filterItems, bool changeGroupNumber = false)
{
if (changeGroupNumber)
{
foreach (GFilterItem item in this)
{
item.GroupNumber += 1;
}
}
foreach (GFilterItem item in filterItems)
{
if (!this.Contains(item))
{
this.Add(item.Clone());
}
}
}
/// <summary>
/// 解析過濾條件中的欄位變數。
/// </summary>
/// <param name="dataSet">資料集。</param>
/// <param name="tableName">作用資料表名稱。</param>
/// <param name="rowIndex">作用資料列索引。</param>
public GFilterItemCollection ParseField(DataSet dataSet, string tableName, int rowIndex)
{
var oFilterItems = new GFilterItemCollection();
foreach (GFilterItem item in this.FilterItems)
{
// 產生過濾條件複本
var oFilterItem = item.Clone();
// 解析變數值
this.VariableParser.Parse(item.FilterValue);
// 變數類型
var oVariableType = this.VariableParser.VariableType;
// 取得欄位變數的值
if (oVariableType == EVariableType.Field || oVariableType == EVariableType.TableField)
{
// 拆解字串的資料表名稱及欄位名稱
StrFunc.StrSplitFieldName(this.VariableParser.Value, out string sTableName, out string sFieldName);
if (StrFunc.StrIsEmpty(sTableName))
{
sTableName = tableName;
}
// 取得作用資料列
var oRow = GetDataRow(dataSet, sTableName, sFieldName, rowIndex);
if (BaseFunc.IsNotNull(oRow))
{
oFilterItem.FilterValue = BaseFunc.CStr(oRow[sFieldName]);
}
else
{
oFilterItem.FilterValue = string.Empty;
}
}
oFilterItems.Add(oFilterItem);
}
// 移除無查詢值的條件
oFilterItems.RemoveEmpty();
return(oFilterItems);
}
/// <summary>
/// 建構函式。
/// </summary>
/// <param name="sessionInfo">連線資訊。</param>
/// <param name="filterItems">過濾條件集合。</param>
public GFilterItemsParser(GSessionInfo sessionInfo, GFilterItemCollection filterItems)
{
FilterItems = filterItems;
SessionInfo = sessionInfo;
}
