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What data type in SQL Server is the same as bigint in C # Net-Framework/ASP_dot_Net-Core/Data-Model
What data type in SQL Server is the same as bigint in C #
06.07.2021 105
Conversion SQL Server to C#: c# long=sql bigint c# int=sql int

Error CS0815: Cannot assign null to an implicitly-typed variable Net-Framework/ASP_dot_Net-Core/Data-Model/Data-Errors
Error CS0815: Cannot assign null to an implicitly-typed variable
19.02.2021 447
Error CS0815: Cannot assign to an implicitly-typed variable When I'm trying to get into C's Asp Net Core Net5 to create a var variable var query=

Asp.Net Core SQL Server crashed at zero values Net-Framework/ASP_dot_Net-Core/Data-Model/Data-Errors
Asp.Net Core SQL Server crashed at zero values
19.02.2021 299
Problem: When an Asp Net Core application attaches data from a SQL server, data return often stops The cause is often the data model at sql null values In tables, integer numbers are often defined as zero on SQL Server

nvalidOperationException: The entity type Model requires a primary key to be defined Net-Framework/ASP_dot_Net-Core/Data-Model/Data-Errors
nvalidOperationException: The entity type Model requires a primary key to be defined
18.02.2021 613
An unhandled exception occurred while processing the request InvalidOperationException: The entity type 'myModel' requires a primary key to be defined If you intended to use a keyless entity type , call 'HasNoKey' in OnModelCreating Keyless entity types Sol

SQL Data Types   DateTime Date Time und TimeSpan in Asp.Net Excel Net-Framework/ASP_dot_Net-Core/Data-Model
SQL Data Types DateTime Date Time und TimeSpan in Asp.Net Excel
21.01.2021 450
SQL Data Types Converting Date Time Datentypes to C , JSON , and Excel SQL Server Datetimeoffset(7)

SQL Server Use Data Type time(7) Net-Framework/ASP_dot_Net-Core/Data-Model
SQL Server Use Data Type time(7)
21.01.2021 339
SQL Server Use Data Type time(7) How is a SQL Server data type Time(7) represented in the output -> Representation of a SQL server data type time becomes

Linq: Output to a variable list Net-Framework/ASP_dot_Net-Core/Data-Model/Linq
Linq: Output to a variable list
16.08.2018 1215
Linq: Output to a variable list How to pass the query results of a Linq query to a free list? Solution: with list and elements of type Object

Linq: Select Fields in Query Net-Framework/ASP_dot_Net-Core/Data-Model/Linq
Linq: Select Fields in Query
16.08.2018 3006
Linq: Select Fields in Query Error: object does not contain a definition for fieldname

the type or namespace name dbAppData_Context does not exist Net-Framework/ASP_dot_Net-Core/Data-Model/Linq
the type or namespace name dbAppData_Context does not exist
10.08.2018 1215
Problem: Occurs when updating the data model when updating the model at the WPF with an EF Entity Framework connection to a SQL Server database, then it may be that the connection is taken over incorrectly as a data context

Delete record in Linq Net-Framework/ASP_dot_Net-Core/Data-Model/Linq
Delete record in Linq
10.08.2018 1207
Delete record in Linq Code snippet: delete record call

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