How can I declare VARBINARY(MAX) in C#?

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I need know how to declare VABINAY(MAX) in C#

What I have tried:

How can I declare VARBINARY(MAX) in C#?
Please help me

Posted 28-Dec-21 23:13pm

Elie Nfune

Updated 25-Mar-22 8:11am

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Richard MacCutchan 29-Dec-21 5:33am

What do you mean? VARBINARY is an SQL data type, nothing to do with C#.

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OriginalGriff · Answer 1 · 2021-12-28T23:57:00

Solution 1

You don't: you cast the VARBINARY field that SQL returns from a SELECT to a byte[], and supply a byte[] as a parameter when you INSERT or UPDATE.

Posted 28-Dec-21 23:57pm

OriginalGriff

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Maciej Los 29-Dec-21 12:56pm

5ed!

#realJSOP · Answer 2 · 2021-12-28T23:59:00

Solution 2

This might help:

Modifying Large-Value (max) Data - ADO.NET | Microsoft Docs[^]

Posted 28-Dec-21 23:59pm

#realJSOP

pkizilos1 · Answer 3 · 2022-03-25T07:29:00

Solution 3

If you are doing code-first EF Migrations to create your SQL tables, this works for me:

C#

public byte[] MyImage { get; set; }

This is what gets written by the migrationBuilder:

C#

<pre>MyImage = table.Column<byte[]>(type: "varbinary(max)", nullable: false)

I hope this helps someone.

Posted 25-Mar-22 7:29am

pkizilos1

M Imran Ansari · Answer 4 · 2022-03-25T08:11:00

Solution 4

For your future reference of use SQL Server Data Type Mappings:
SQL Server Data Type Mappings (ADO.NET) | Microsoft Docs[^]

Posted 25-Mar-22 8:11am

M Imran Ansari