"System.Data.Entity.Internal.AppConfig" type initializer causes an exception "The given key was not present in the dictionary." when passing null non-Route paramater to ActionLink "The LINQ expression node type 'Invoke' is not supported in LINQ to Entities" when using PredicateBuilder, help pl...
How to create database migrations FAQ Try the FAQ — it's got answers to many common questions. Index,Module Index, orTable of Contents Handy when looking for specific information. Django Discord Server Join the Django Discord Community. ...
!> in c# . Check is object null - What are the options? .Net 4 FileLoadException permissions problem With windows service .NET code to extract data from an excel sheet and create a text file having a specific format .Net Core 3.0 Console App. Microsoft.Data.SQLClient is not supported ...
start the server asrootwithout using--user=mysql, the server may createroot-owned files in the data directory, such as log files, and these may cause permission-related problems for future server startups. If that happens, you must either change the ownership of the files tomysqlor remove ...
Now, we have to activate this CDS View, use "Activate BW Object" icon. After successfully activation, the sql view “zdemo_sqlv_po” was created in ABAP Dictionary.The CDS View can be checked by two methods. First, transaction SE16 can be used for data bro...
Documents: data is stored in objects called documents. In simple terms, documents are similar to JSON key-value objects. A single document is equivalent to a row in a table. If you are a Python programmer, you can think of a document as a dictionary, and you would be OK. Just remember...
We could also access these properties using SQL Server Management Studio by right-clicking on a database object and choosing to display its properties. In the dialog, we will find an Extended Properties tab. While this feature seems very helpful, it’s really underused and there are simple rea...
Create a Dictionary def my_function(x): return list( dict.fromkeys(x) )mylist = my_function(["a", "b", "a", "c", "c"]) print(mylist) Convert the dictionary into a list.Convert Into a List def my_function(x): return list( dict.fromkeys(x) ) mylist = my_function(["a",...
Connecting to mobile services Quickstart: Add a mobile service (.NET backend) Quickstart: Add a mobile service to a universal app How to use controllers to access data (.NET backend) How to create custom APIs and scheduled jobs (.NET backend) ...
public void Post(string toAddress) { Services.Log.Info("MailController Post method called."); List<TodoItem> items = context.Database.SqlQuery<TodoItem>("SELECT * FROM TodoItems").ToList(); string subject = "Your todolist for " + DateTime.Now.ToString(); string body = ""; foreach ...