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這篇文章主要介紹了C#遞歸應(yīng)用之如何實(shí)現(xiàn)JS文件的自動(dòng)引用的相關(guān)知識(shí)，內(nèi)容詳細(xì)易懂，操作簡單快捷，具有一定借鑒價(jià)值，相信大家閱讀完這篇C#遞歸應(yīng)用之如何實(shí)現(xiàn)JS文件的自動(dòng)引用文章都會(huì)有所收獲，下面我們一起來看看吧。
兩張表，分別是 ：sys_tbl,和 sys_field,其中：sys_tbl 是系統(tǒng)所有表的信息，包含兩個(gè)字段 ：code（表名）,name（表描述信息）；sys_fld 是記錄第張表中的字段 的名稱（field)和描述信息（table) ,
截圖如下：
sys_tbl
其中，字段 名稱包含對(duì)其它名稱（對(duì)象） 的引用，寫法為：表名（去除下劃線）_引用字段 ，如：einventory_cinvcode,就是對(duì)表 e_inventory 中字段 cinvcode的引用。
每張表都在系統(tǒng) 中對(duì)應(yīng)有不同功能的js文件（模塊）如： 編輯窗體（dialog類型)，跨域選擇窗體(field）類型等
在一個(gè)綜合的頁面中，會(huì)對(duì)其它對(duì)象進(jìn)行引用（依賴)，而這種引用最終體現(xiàn)在對(duì)js文件的包含。同時(shí)被引用的js 文件（一級(jí)引用）還有自已關(guān)聯(lián)對(duì)象（二級(jí)引用）.....如此下去，直到N 級(jí)引用。
所以現(xiàn)在需要逐層找到對(duì)象的引用，直到最后不依賴任何對(duì)象為止，并把這些js文件生成引用包含路徑（不重復(fù)）
得到這些js引用，不能重復(fù)，但是對(duì)象之間引用是可以存在交叉的，在整個(gè)引用鏈條上，同一個(gè)對(duì)象會(huì)被 多個(gè)對(duì)象引用，所以簡單的字符串?dāng)?shù)組是避免不了重復(fù)的。但是在C#中的HashSet可以做到不重復(fù)，同時(shí)這個(gè)去重工作是自動(dòng)完成的，所以存結(jié)果如果是簡單的value類型，用 HashSet就可以，但是因?yàn)樽侄沃斜淼男畔⒁呀?jīng)被格式化過，所以還要把格式化之前的表名稱取出與字段對(duì)應(yīng)，所以需要一個(gè)key-value類型的數(shù)據(jù) ，那就是 Dictionary<string, string> 了。
因?yàn)椴檎乙?，是層層進(jìn)行的，而且下一層引用的要用到上一層的引用結(jié)果，所以這里選擇遞歸算法
聲明一個(gè)全局變量，記錄所有的表與字段的對(duì)應(yīng)的數(shù)據(jù)，因?yàn)樾枰_保數(shù)據(jù)key 唯一性所以選擇Dicctionary類型
/// <summary> /// define the gloable parameter to save the rel obj data /// </summary> public static Dictionary<string, string> <strong>deepRef </strong>= new Dictionary<string, string>();
入口函數(shù)，完成準(zhǔn)備工作，（數(shù)據(jù)庫連接，參數(shù)準(zhǔn)備）
/// <summary>
/// 通過表的字段 獲取相關(guān)的引用字段依賴的對(duì)象 直到?jīng)]有依賴為止
/// </summary>
/// <param name="headField">表字段列表</param>
/// <returns></returns>
public static Dictionary<string,string> getRelRef(List<IniItemsTableItem> headField)
{
HashSet<string> refset = new HashSet<string>();
// HashSet<string> refset_result = new HashSet<string>();
foreach (var item in headField)
{
if (!item.controlType.StartsWith("hz_"))// is not the field of reference
{
continue;
}
string[] fieldarr = item.dataIndex.Split('_');//the constructor is :[tabble]_[field]
refset.Add(fieldarr[0]);//the first prefix
}
dataOperate dao = new dataOperate();
dao.DBServer = "info";
SqlConnection conn = dao.createCon();
try
{
if (refset.Count > 0)
{
if (conn.State != ConnectionState.Open)
conn.Open();//open connection
deepRef = new Dictionary<string, string>();//clear the relation obj data
getRef(conn, refset);
}
return deepRef;
}
catch (Exception)
{
throw;
}
finally
{
if (conn.State == ConnectionState.Open)
conn.Close();
}
}遞歸函數(shù)，最終完成在數(shù)據(jù)庫中獲取字段依賴的對(duì)象的獲取
/// <summary>
/// get the relation obj
/// </summary>
/// <param name="conn"></param>
/// <param name="ref_field"></param>
/// <returns></returns>
public static HashSet<string> <strong>getRef</strong>(SqlConnection conn, HashSet<string> ref_field)
{
HashSet<string> refset = new HashSet<string>();
string refstr = string.Join("','", ref_field);
if (refstr != "")
{
refstr = "'" + refstr + "'";
string sql = "SELECT dbo.GetSplitOfIndex(b.[field],'_',1) as refcode,a.[code] FROM ( select replace(code,'_','') as uncode,* from [SevenWOLDev].[dbo].[sys_tbl_view] ) as a inner join [SevenWOLDev].[dbo].[sys_fld_view] as b on a.uncode=dbo.GetSplitOfIndex(b.[field],'_',1) where replace([table],'_','') in (" + refstr + ") and uitype='ref'";
//get dataset relation obj
DataSet ds = dataOperate.getDataset(conn, sql);
if (ds != null && ds.Tables.Count > 0)
{
DataTable dt = ds.Tables[0];
if (dt.Rows.Count > 0)
{
//rel ref exists
for (int k = 0; k < dt.Rows.Count; k++)
{
string vt = dt.Rows[k].ItemArray[0].ToString();
string vv = dt.Rows[k].ItemArray[1].ToString();
refset.Add(vt);//save current ref
if(!<strong>deepRef</strong>.ContainsKey(vt))
<strong>deepRef</strong>.Add(vt, vv);// save all ref
}
if (refset.Count > 0)// get the ref successfully
{
//recursion get
getRef(conn, refset);
}
}
}
}
else
{
//no ref
}
return refset;
}對(duì)函數(shù)進(jìn)行調(diào)用，并組織出js文件引用路徑
Dictionary<string,string> deepRef = ExtjsFun.getRelRef(HeadfieldSetup);
if (deepRef != null)
{
foreach (var s in deepRef)
{
string tem_module = "";
tem_module = s.Value;
string[] moduleArr = tem_module.Split('_');
if (tem_module.IndexOf("_") >= 0)
tem_module = moduleArr[1];//module name for instance: p_machine ,the module is “machine” unless not included the underscore
string fieldkind = "dialog";
jslist.Add(MyComm.getFirstUp(tem_module) + "/" + ExtjsFun.GetJsModuleName(tem_module, s.Value, fieldkind) + ".js");
fieldkind = "field";
jslist.Add(MyComm.getFirstUp(tem_module) + "/" + ExtjsFun.GetJsModuleName(tem_module, s.Value, fieldkind) + ".js");
}
}最終結(jié)果 如下：
<script src="../../dept/demoApp/scripts/Sprice/SpriceE_spriceGridfield.js" type="text/javascript"></script> <script src="../../dept/demoApp/scripts/Org/OrgE_orgDialog.js" type="text/javascript"></script> <script src="../../dept/demoApp/scripts/Supplier/SupplierOa_supplierDialog.js" type="text/javascript"></script> <script src="../../dept/demoApp/scripts/Supplier/SupplierOa_supplierField.js" type="text/javascript"></script> <script src="../../dept/demoApp/scripts/Unit/UnitE_unitDialog.js" type="text/javascript"></script> <script src="../../dept/demoApp/scripts/Unit/UnitE_unitField.js" type="text/javascript"></script> <script src="../../dept/demoApp/scripts/Wh/WhWh_whDialog.js" type="text/javascript"></script> <script src="../../dept/demoApp/scripts/Wh/WhWh_whField.js" type="text/javascript"></script> <script src="../../dept/demoApp/scripts/Mold/MoldP_moldDialog.js" type="text/javascript"></script> <script src="../../dept/demoApp/scripts/Mold/MoldP_moldField.js" type="text/javascript"></script> <script src="../../dept/demoApp/scripts/Suppliercategory/SuppliercategoryOa_suppliercategoryDialog.js" type="text/javascript"></script> <script src="../../dept/demoApp/scripts/Suppliercategory/SuppliercategoryOa_suppliercategoryField.js" type="text/javascript"></script> <script src="../../dept/demoApp/scripts/Bank/BankOa_bankDialog.js" type="text/javascript"></script> <script src="../../dept/demoApp/scripts/Bank/BankOa_bankField.js" type="text/javascript"></script> <script src="../../dept/demoApp/scripts/Machine/MachineP_machineDialog.js" type="text/javascript"></script> <script src="../../dept/demoApp/scripts/Machine/MachineP_machineField.js" type="text/javascript"></script> <script src="../../dept/demoApp/scripts/Inventory/InventoryE_inventoryDialog.js" type="text/javascript"></script> <script src="../../dept/demoApp/scripts/Basedocment/BasedocmentOa_basedocmentDialog.js" type="text/javascript"></script> <script src="../../dept/demoApp/scripts/Basedocment/BasedocmentOa_basedocmentField.js" type="text/javascript"></script> <script src="../../dept/demoApp/scripts/Basedoctype/BasedoctypeOa_basedoctypeDialog.js" type="text/javascript"></script> <script src="../../dept/demoApp/scripts/Basedoctype/BasedoctypeOa_basedoctypeField.js" type="text/javascript"></script> <script src="../../dept/demoApp/scripts/Tax/TaxE_taxDialog.js" type="text/javascript"></script> <script src="../../dept/demoApp/scripts/Tax/TaxE_taxField.js" type="text/javascript"></script>
完事代碼如下：
/// <summary>
/// define the gloable parameter to save the rel obj data
/// </summary>
public static Dictionary<string, string> deepRef = new Dictionary<string, string>();
/// <summary>
/// 通過表的字段 獲取相關(guān)的引用字段依賴的對(duì)象 直到?jīng)]有依賴為止
/// </summary>
/// <param name="headField">表字段列表</param>
/// <returns></returns>
public static Dictionary<string,string> getRelRef(List<IniItemsTableItem> headField)
{
HashSet<string> refset = new HashSet<string>();
// HashSet<string> refset_result = new HashSet<string>();
foreach (var item in headField)
{
if (!item.controlType.StartsWith("hz_"))// is not the field of reference
{
continue;
}
string[] fieldarr = item.dataIndex.Split('_');//the constructor is :[tabble]_[field]
refset.Add(fieldarr[0]);//the first prefix
}
dataOperate dao = new dataOperate();
dao.DBServer = "info";
SqlConnection conn = dao.createCon();
try
{
if (refset.Count > 0)
{
if (conn.State != ConnectionState.Open)
conn.Open();//open connection
deepRef = new Dictionary<string, string>();//clear the relation obj data
getRef(conn, refset);
}
return deepRef;
}
catch (Exception)
{
throw;
}
finally
{
if (conn.State == ConnectionState.Open)
conn.Close();
}
}
/// <summary>
/// get the relation obj
/// </summary>
/// <param name="conn"></param>
/// <param name="ref_field"></param>
/// <returns></returns>
public static HashSet<string> getRef(SqlConnection conn, HashSet<string> ref_field)
{
HashSet<string> refset = new HashSet<string>();
string refstr = string.Join("','", ref_field);
if (refstr != "")
{
refstr = "'" + refstr + "'";
string sql = "SELECT dbo.GetSplitOfIndex(b.[field],'_',1) as refcode,a.[code] FROM ( select replace(code,'_','') as uncode,* from [SevenWOLDev].[dbo].[sys_tbl_view] ) as a inner join [SevenWOLDev].[dbo].[sys_fld_view] as b on a.uncode=dbo.GetSplitOfIndex(b.[field],'_',1) where replace([table],'_','') in (" + refstr + ") and uitype='ref'";
//get dataset relation obj
DataSet ds = dataOperate.getDataset(conn, sql);
if (ds != null && ds.Tables.Count > 0)
{
DataTable dt = ds.Tables[0];
if (dt.Rows.Count > 0)
{
//rel ref exists
for (int k = 0; k < dt.Rows.Count; k++)
{
string vt = dt.Rows[k].ItemArray[0].ToString();
string vv = dt.Rows[k].ItemArray[1].ToString();
refset.Add(vt);//save current ref
if(!deepRef.ContainsKey(vt))
deepRef.Add(vt, vv);// save all ref
}
if (refset.Count > 0)// get the ref successfully
{
//recursion get
getRef(conn, refset);
}
}
}
}
else
{
//no ref
}
return refset;
}關(guān)于“C#遞歸應(yīng)用之如何實(shí)現(xiàn)JS文件的自動(dòng)引用”這篇文章的內(nèi)容就介紹到這里，感謝各位的閱讀！相信大家對(duì)“C#遞歸應(yīng)用之如何實(shí)現(xiàn)JS文件的自動(dòng)引用”知識(shí)都有一定的了解，大家如果還想學(xué)習(xí)更多知識(shí)，歡迎關(guān)注億速云行業(yè)資訊頻道。
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