Base64 Validatoins

Base64 String

Checks that it is a base64 string

[Base64String]
public string Base64 { get; set; }

Max Base64 Size

Checks that the Base64 size does not exceed the specified value

Parameter	Type	Description
maxBase64Size	long	Maximum Base64 size allowed
unit	enum FileSizeUnit	File size unit (byte,Kilobyte,...)
unitDisplayName	string?	Base64 size unit to display in error message, If you pass null, it will show the FileSizeUnit in Error Message

[MaxBase64Size(50,Enums.FileSizeUnit.Byte)]
public string Base64 { get; set; }

Min Base64 Size

Checks that the base64 size is not less than the specified value

Parameter	Type	Description
minBase64Size	long	Minimum Base64 size allowed
unit	enum FileSizeUnit	File size unit (byte,Kilobyte,...)
unitDisplayName	string?	Base64 size unit to display in error message, If you pass null, it will show the FileSizeUnit in Error Message

[MinBase64Size(50,Enums.FileSizeUnit.Byte)]
public string Base64 { get; set; }

Range Base64 Size

Checks if the Base64 size is within the specified range

Parameter	Type	Description
maxBase64Size	long	Maximum base64 size allowed
minBase64Size	long	Minimum base64 size allowed
unit	enum FileSizeUnit	File size unit (byte,Kilobyte,...)
unitDisplayName	string?	File size unit to display in error message, If you pass null, it will show the FileSizeUnit in Error Message

[RangeBase64Size(100,50,Enums.FileSizeUnit.Byte)]
public string Base64 { get; set; }

Allowed Base64 File Extensions

Checks that the ContentType of the imported file is one of the allowed ContentTypes

Parameter	Type	Description
isExtension	bool	If you want to enter the file extension instead of the content type
allowedContentTypes	params string[]	Allowed content types (if you set isExtension to true, you can enter file extensions with dot and without dot)

[AllowedBase64FileExtensions(false,new[] { "image/png","image/jpeg" })]
public string Base64 { get; set; }

[AllowedBase64FileExtensions(true,new[] { ".png","jpeg" })]
public string Base64 { get; set; }

Not Allowed Base64 File Extensions

Checks that the ContentType of the imported file is not one of the illegal ContentTypes.

Parameter	Type	Description
isExtension	bool	If you want to enter the file extension instead of the content type
notAllowedContentTypes	params string[]	Not allowed content types (if you set isExtension to true, you can enter file extensions with dot and without dot)

[NotAllowedBase64FileExtensions(false,new[] { "image/png","image/jpeg" })]
public IFormFile? File { get; set; }

[NotAllowedBase64FileExtensions(true,new[] { ".png","jpeg" })]
public IFormFile? File { get; set; }