c# - Aproaching singleton connection class -

- 

  नाम स्थान ए.वी.. कनेक्शन (संरक्षित वर्ग MyConnection) सुरक्षित कनेक्शन कनेक्शन सेटिंग्स सेटिंग्स {प्राप्त करें {return configurationManager.ConnectionStrings ["mySQLConnection" ]; }} संरक्षित DbConnection कनेक्शन {get new OdbcConnection (connectionSettings.ConnectionString); }} सुरक्षित DbCommand आदेश {get {return connection.CreateCommand ()); }} संरक्षित DbParameter पैरामीटर {get {return command.CreateParameter ()); }}}}

मैं सिंगलटन क्लास बनाने की कोशिश कर रहा था जो कनेक्शन ऑब्जेक्ट्स के साथ-साथ अन्य संबंधित ऑब्जेक्ट्स भी वापस कर सकता था। उपरोक्त दृष्टिकोण मैंने सोचा था कि था। मुझे यकीन है कि मैं किसी तरह गलत हूँ कृपया बताइए कि कैसे? या यदि नहीं, तो इसके लिए सबसे अच्छा तरीका क्या है।

यह सिंगलटन नहीं है .... मैं समझता हूं लेकिन मुझे लगता है कि मैं क्लास स्थिर घोषित नहीं कर सकता क्योंकि इसमें कनेक्शन शामिल हैं I इसलिए मैं वास्तव में इस स्थिति के बारे में उलझन में हूं।

यह एक सिंगलटन नहीं है (जब तक कि इसे किसी फैक्टरी वर्ग इस वर्ग के केवल एक उदाहरण को बनाए रखने के लिए जिम्मेदारी के साथ)। सिंगलटन पैटर्न को लागू करने के लिए इस आलेख को देखें:


Comments

Post a Comment

Popular posts from this blog

c# - sqlDecimal to decimal clr stored procedure Unable to cast object of type 'System.Data.SqlTypes.SqlDecimal' to type 'System.IConvertible' -

-
I'm new to this I'm writing a clr. stored procedure that can be used to get values ​​used in a calculation Call for another stored procedure for Gives an archived methodology int (I think SqlInt32? Value of the table's value is int) which is then necessary to convert to decimal. Here I have the code: Public static integral mood (SQL MDMMYLUE, escalistering AMY type, out of SQLDCM Result) {aResult = 0; Try {SqlConnection conn = New SqlConnection ("Reference Connection = True"); SqlCommand cmd = New SqlCommand ("sp_GetType", conn); Cmd.Parameters.AddWithValue ("@ myValueType", aMyValueType); Cmd.CommandType = CommandType.StoredProcedure; Conn.Open (); Object type = CMD. Exclamation Asser (); Conn.Close (); Decimal type FORCalculation = Convert. ToDecimal (type); Decimal value = convert toDecimal (aMyValue); // ** calculation calc = new calculation (); Decimal result = calorie.docalulation (typefarculation, value); I get an exception...
Read more

Calling GetGUIThreadInfo from Outlook VBA -

-
I need to find the active window'm writing a VBA macro in MS Outlook, which is a specific process. The goal of this is to get the active window / document name even if its original application has more than one document interface. User processor with GetCurrentThreadId is active, I am using GetGUIThreadInfo to get .dll. Here is the correct code: private type RECT as as Left LongPtr top LongPtr right LongPtr down LongPtr termination of private type GUITHREADINFO cbSize as LongPtr flags LongPtr hwndActive LongPtr hwndFocus LongPtr hwndCapture LongPtr as as as as as reset as LongPtr rcCaret as LongPtr hwndCreate as LongPtr hwndMoveSize as HwndMenuOwner end of Private Equity PtrSafe function GetWindowThreadProcessId Lib "user32" (_BVV hnw LongPtr as LongPtr Nig Mr. announced as PtrSafe function GetGUIThreadInfo Lib "user32" _ (ByVal dwthreadid as LongPtr, _ lpguithreadinfo as GUITHREADINFO) LongPtr Sub MyFunction () as dim strWindowTitle string = space as s...
Read more

Obfuscating Python code? -

-
I'm looking for a way to hide my Python source code. print "Hello World!" How can I encode this example so that it is not human-readable? I have been asked to use Base 64 but I'm not sure how. itemprop = "text"> It is limited only, first level ambiguous resolution, but has built-in: byte-code in Python Is a compiler for: dragon-o-m py_compile & lt; Your program.py & gt; creates a .pyo file with a byte-code, and where the docstrings are removed, etc. You can rename .pyo with the .py extension, and python & lt; Your program.py & gt; runs as your program, but it does not have your source code. PS : If your program blur modules like this, you need to rename them with the .pyc suffix (I Not sure it will not break a day), or you can work with .pyo and run them with python -o ... .pyo ( Import should work). This will allow dragon to search your modules (otherwise, Python looks for the .py module).
Read more