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Entity Framework Core Error: To change the IDENTITY property of a column, the column needs to be dropped and recreated

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SqlException: Cannot insert the value NULL into co

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SqlException: Cannot insert the value NULL into column 'Id', table 'dbo.TableName'; column does not allow nulls. INSERT fails. The statement has been terminated

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Entity Framework Core Error: Unable to track an en

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Entity Framework Core Error: Unable to track an entity of type "Model Class Object" because primary key property 'id' is null

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Sql Server Error, Entity Framework Core Error: An

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Sql Server Error, Entity Framework Core Error: An unhandled exception occurred while processing the request. SqlException: Invalid column name 'ColumnName'. Invalid column name 'AnotherColumnName'.

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InvalidOperationException: The required column 'Ca

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InvalidOperationException: The required column 'Categoryid' was not present in the results of a 'FromSql' operation

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SqlException: Conversion failed when converting fr

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SqlException: Conversion failed when converting from a character string to uniqueidentifier

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What is New in Asp Net 7 and EF Core 7 (Best Featu

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What is New in Asp Net 7 and EF Core 7 (Best Features)

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SqlExeption: Cannot insert explicit value for iden

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SqlExeption: Cannot insert explicit value for identity column in table when IDENTITY_INSERT is set to OFF

SQL
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Asp.Net Core Error: InvalidOperationException: The

.NET 7
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Asp.Net Core Error: InvalidOperationException: The database generated a null value for non-nullable property 'PropertyName' of entity type 'EntityName'. Ensure value generation configuration in the database matches the configuration in the model

.NET 7
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What is New in Entity Framework 5 Shipped in Asp.N

.NET 7
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What is New in Entity Framework 5 Shipped in Asp.Net 5

.NET 7
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Performance Tuning in Entity Framework Core 5 and

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Performance Tuning in Entity Framework Core 5 and AspNet 5

.NET 7
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Solved!! Column is invalid in the select list beca

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Solved!! Column is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause

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Microsoft.EntityFrameworkCore.Database.Transaction

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Microsoft.EntityFrameworkCore.Database.Transaction[20205] An error occurred using a transaction.

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The expression 'b.listOfFileRecords' is invalid in

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The expression 'b.listOfFileRecords' is invalid inside an 'Include' operation, since it does not represent a property access

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SqlNullValueException: Data is Null. This method o

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SqlNullValueException: Data is Null. This method or property cannot be called on Null values

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InvalidOperationExecption: The property 'EntityNam

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InvalidOperationExecption: The property 'EntityName.Id' is part of a key and so cannot be modified or marked as modified.

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Solved!! Column 'Employee.ID' is invalid in the se

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Solved!! Column 'Employee.ID' is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause

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Error The instance of entity type ModalType cannot

.NET 7
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Error The instance of entity type ModalType cannot be tracked because another instance with the key value {id: 7656544} is already being tracked.

.NET 7
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Entity Framework Core 6 and 7 Tips and Tricks

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Entity Framework Core 6 and 7 Tips and Tricks

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Machine-Learning Error: Message=The weights/bias c

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Machine-Learning Error: Message=The weights/bias contain invalid values (NaN or Infinite). Potential causes: high learning rates, no normalization, high initial weights, etc

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What is Entity Framework Navigation in Asp.Net 6

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What is Entity Framework Navigation in Asp.Net 6

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Cannot insert the value NULL into column 'Id', tab

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Cannot insert the value NULL into column 'Id', table 'TableName'; column does not allow nulls. INSERT fails

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Entity framework "InvalidCastException: Unable to

.NET 7
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Entity framework "InvalidCastException: Unable to cast object of type 'System.Int32' to type 'System.Decimal."

.NET 7
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[Solved] System.InvalidOperationException: 'Unable

QUESTIONS
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[Solved] System.InvalidOperationException: 'Unable to track an entity of type 'EntityName' because its primary key property 'Id' is null

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What is domain driven design in Asp.Net 8?

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What is domain driven design in Asp.Net 8?

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[Solved] InvalidOperationException: The entity typ

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[Solved] InvalidOperationException: The entity type 'TableNameOrModelName' requires a primary key to be defined. If you intended to use a keyless entity type call 'HasNoKey()'.

MVC
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How to Count the Number of records in the Database

.NET 7
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How to Count the Number of records in the Database Table using Asp.Net Core Entity Framework Core

.NET 7
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_context.ChangeTracker 'threw an exception of type

.NET 7
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_context.ChangeTracker 'threw an exception of type 'System.ObjectDisposedException'

.NET 7
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[Solved] Entity Framework Core (EF 6) Error: Unabl

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[Solved] Entity Framework Core (EF 6) Error: Unable to track an entity of type 'YourModalName' because primary key property 'id' is null.

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Entity Framework Core Store Procedure with Paramet

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Entity Framework Core Store Procedure with Parameters does not return results (FromSqlRaw)

SQL
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Asp.Net Core 3.1 2020 Conference Notes

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Asp.Net Core 3.1 2020 Conference Notes

EDUCATION
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An Exception occurred in the database while saving

.NET 7
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An Exception occurred in the database while saving changes for context type 'ContextType' Microsoft.Data.SqlClient.SqlException (0x80131904)

.NET 7
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ExecuteDataReader Error: An error occured while at

SQL
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ExecuteDataReader Error: An error occured while attempting to process your query Incorrect syntax near 'SomeValue'

SQL
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InvalidOperationException: An exception was thrown

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InvalidOperationException: An exception was thrown while attempting to evaluate the LINQ query parameter expression

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[Entity Framework Core 5] An Unhandled Exception O

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[Entity Framework Core 5] An Unhandled Exception Occurred While Processing the Request

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InvalidOperationException: The supplied IQueryable

.NET 7
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InvalidOperationException: The supplied IQueryable is provided by Entity Framework. To query it efficiently, you must reference the package

.NET 7
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The instance of entity type 'IdentityUserLogin<str

.NET 7
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The instance of entity type 'IdentityUserLogin<string>' cannot be tracked because another instance with the same key value for {'LoginProvider', 'ProviderKey'} is already being tracked

.NET 7
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InvalidOperation: The connection was not closed. T

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InvalidOperation: The connection was not closed. The connections current state is connecting

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Cassandra Entity Framework Error "TypeLoadExceptio

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Cassandra Entity Framework Error "TypeLoadException: Method 'GenerateScript' in type"

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SQL Server Tips and Tricks

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SQL Server Tips and Tricks

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InvalidOperationException: An error was generated

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InvalidOperationException: An error was generated for warning 'Microsoft.EntityFrameworkCore.Query.InvalidIncludePathError

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_context.SaveChanges is not working

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_context.SaveChanges is not working

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Asp.Net Core 3.1 Entity Framework Core DateTime fi

.NET 7
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Asp.Net Core 3.1 Entity Framework Core DateTime field getting updated to 1/1/0001

.NET 7
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Weird Issues with SQL Server, Visual Studio and En

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Weird Issues with SQL Server, Visual Studio and Entity-Framework

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How to Code a Windows Service that Updates the Dat

.NET 7
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How to Code a Windows Service that Updates the Database Table Nightly

.NET 7
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How to get the last record of Entity Framework mod

.NET 7
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How to get the last record of Entity Framework model data

.NET 7
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SqlNullValueException: Data is Null. This method o

QUESTIONS
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SqlNullValueException: Data is Null. This method or property cannot be called on Null values

QUESTIONS
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System.InvalidOperationException: The ConnectionSt

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System.InvalidOperationException: The ConnectionString property has not been initialized [EF Core 7, Asp.Net 7]

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InvalidOperationException: An error was generated

.NET 7
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InvalidOperationException: An error was generated for warning 'Microsoft.EntityFrameworkCore.Query.InvalidIncludePathError': Unable to find navigation 'EntityName' specified in string based include path 'AnotherEntity Name'.

.NET 7
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Entity Framework Invalid Column

Invalid column name '*_ID'

Invalid column name '*_ID'

Entity Framework Core Error: To change the IDENTIT

Entity Framework Core Error: To change the IDENTITY property of a column, the column needs to be dropped and recreated

SqlException: Cannot insert the value NULL into co

SqlException: Cannot insert the value NULL into column 'Id', table 'dbo.TableName'; column does not allow nulls. INSERT fails. The statement has been terminated

Entity Framework Core Error: Unable to track an en

Entity Framework Core Error: Unable to track an entity of type "Model Class Object" because primary key property 'id' is null

Sql Server Error, Entity Framework Core Error: An

Sql Server Error, Entity Framework Core Error: An unhandled exception occurred while processing the request. SqlException: Invalid column name 'ColumnName'. Invalid column name 'AnotherColumnName'.

InvalidOperationException: The required column 'Ca

InvalidOperationException: The required column 'Categoryid' was not present in the results of a 'FromSql' operation

SqlException: Conversion failed when converting fr

SqlException: Conversion failed when converting from a character string to uniqueidentifier

What is New in Asp Net 7 and EF Core 7 (Best Featu

What is New in Asp Net 7 and EF Core 7 (Best Features)

SqlExeption: Cannot insert explicit value for iden

SqlExeption: Cannot insert explicit value for identity column in table when IDENTITY_INSERT is set to OFF

Asp.Net Core Error: InvalidOperationException: The

Asp.Net Core Error: InvalidOperationException: The database generated a null value for non-nullable property 'PropertyName' of entity type 'EntityName'. Ensure value generation configuration in the database matches the configuration in the model

What is New in Entity Framework 5 Shipped in Asp.N

What is New in Entity Framework 5 Shipped in Asp.Net 5

Performance Tuning in Entity Framework Core 5 and

Performance Tuning in Entity Framework Core 5 and AspNet 5

Solved!! Column is invalid in the select list beca

Solved!! Column is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause

Microsoft.EntityFrameworkCore.Database.Transaction

Microsoft.EntityFrameworkCore.Database.Transaction[20205] An error occurred using a transaction.

The expression 'b.listOfFileRecords' is invalid in

The expression 'b.listOfFileRecords' is invalid inside an 'Include' operation, since it does not represent a property access

SqlNullValueException: Data is Null. This method o

SqlNullValueException: Data is Null. This method or property cannot be called on Null values

InvalidOperationExecption: The property 'EntityNam

InvalidOperationExecption: The property 'EntityName.Id' is part of a key and so cannot be modified or marked as modified.

Solved!! Column 'Employee.ID' is invalid in the se

Solved!! Column 'Employee.ID' is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause

Error The instance of entity type ModalType cannot

Error The instance of entity type ModalType cannot be tracked because another instance with the key value {id: 7656544} is already being tracked.

Entity Framework Core 6 and 7 Tips and Tricks

Entity Framework Core 6 and 7 Tips and Tricks

Machine-Learning Error: Message=The weights/bias c

Machine-Learning Error: Message=The weights/bias contain invalid values (NaN or Infinite). Potential causes: high learning rates, no normalization, high initial weights, etc

What is Entity Framework Navigation in Asp.Net 6

What is Entity Framework Navigation in Asp.Net 6

Cannot insert the value NULL into column 'Id', tab

Cannot insert the value NULL into column 'Id', table 'TableName'; column does not allow nulls. INSERT fails

Entity framework "InvalidCastException: Unable to

Entity framework "InvalidCastException: Unable to cast object of type 'System.Int32' to type 'System.Decimal."

[Solved] System.InvalidOperationException: 'Unable

[Solved] System.InvalidOperationException: 'Unable to track an entity of type 'EntityName' because its primary key property 'Id' is null

What is domain driven design in Asp.Net 8?

What is domain driven design in Asp.Net 8?

[Solved] InvalidOperationException: The entity typ

[Solved] InvalidOperationException: The entity type 'TableNameOrModelName' requires a primary key to be defined. If you intended to use a keyless entity type call 'HasNoKey()'.

How to Count the Number of records in the Database

How to Count the Number of records in the Database Table using Asp.Net Core Entity Framework Core

_context.ChangeTracker 'threw an exception of type

_context.ChangeTracker 'threw an exception of type 'System.ObjectDisposedException'

[Solved] Entity Framework Core (EF 6) Error: Unabl

[Solved] Entity Framework Core (EF 6) Error: Unable to track an entity of type 'YourModalName' because primary key property 'id' is null.

Entity Framework Core Store Procedure with Paramet

Entity Framework Core Store Procedure with Parameters does not return results (FromSqlRaw)

Asp.Net Core 3.1 2020 Conference Notes

Asp.Net Core 3.1 2020 Conference Notes

An Exception occurred in the database while saving

An Exception occurred in the database while saving changes for context type 'ContextType' Microsoft.Data.SqlClient.SqlException (0x80131904)

ExecuteDataReader Error: An error occured while at

ExecuteDataReader Error: An error occured while attempting to process your query Incorrect syntax near 'SomeValue'

InvalidOperationException: An exception was thrown

InvalidOperationException: An exception was thrown while attempting to evaluate the LINQ query parameter expression

[Entity Framework Core 5] An Unhandled Exception O

[Entity Framework Core 5] An Unhandled Exception Occurred While Processing the Request

InvalidOperationException: The supplied IQueryable

InvalidOperationException: The supplied IQueryable is provided by Entity Framework. To query it efficiently, you must reference the package

The instance of entity type 'IdentityUserLogin<str

The instance of entity type 'IdentityUserLogin<string>' cannot be tracked because another instance with the same key value for {'LoginProvider', 'ProviderKey'} is already being tracked

InvalidOperation: The connection was not closed. T

InvalidOperation: The connection was not closed. The connections current state is connecting

Cassandra Entity Framework Error "TypeLoadExceptio