Send IFormFile back from controller - Asp Net Core
0
I'm uploading some files using IFormFile interface
<input required asp-for="FeaturedPhoto" type="file" />
The file is being uploaded correctly, but now I would like to load this back into my model so it can be used in an Edit view.
The image is being uploaded in the server, only the path and name are being saved into the DB.
obj.FeaturedPhoto = new FormFile(); // Need help building this
Regards,
file asp.net-core upload .net-core asp.net-core-2.1
asked Nov 25 '18 at 22:24
lsotovlsotov
4118
add a comment |
0
I'm uploading some files using IFormFile interface
<input required asp-for="FeaturedPhoto" type="file" />
The file is being uploaded correctly, but now I would like to load this back into my model so it can be used in an Edit view.
The image is being uploaded in the server, only the path and name are being saved into the DB.
obj.FeaturedPhoto = new FormFile(); // Need help building this
Regards,
file asp.net-core upload .net-core asp.net-core-2.1
asked Nov 25 '18 at 22:24
lsotovlsotov
4118
I don't think you can load the files in to a form, you can however display that file by exposing a stream, what kind of file is it?
– Anton Toshik
Nov 25 '18 at 22:55
I'm working with images
– lsotov
Nov 25 '18 at 23:17
Not what you are asking for, but I recommend displaying the image, and just having a checkbox if someone wants to override the image. Store your path to the image in a hidden input field.
– Anton Toshik
Nov 25 '18 at 23:19
why not simply send back base64-encoded characters to client side?
– itminus
Nov 26 '18 at 3:06
add a comment |
0
0
0
I'm uploading some files using IFormFile interface
<input required asp-for="FeaturedPhoto" type="file" />
The file is being uploaded correctly, but now I would like to load this back into my model so it can be used in an Edit view.
The image is being uploaded in the server, only the path and name are being saved into the DB.
obj.FeaturedPhoto = new FormFile(); // Need help building this
Regards,
file asp.net-core upload .net-core asp.net-core-2.1
asked Nov 25 '18 at 22:24
lsotovlsotov
4118
I'm uploading some files using IFormFile interface
<input required asp-for="FeaturedPhoto" type="file" />
The file is being uploaded correctly, but now I would like to load this back into my model so it can be used in an Edit view.
The image is being uploaded in the server, only the path and name are being saved into the DB.
obj.FeaturedPhoto = new FormFile(); // Need help building this
Regards,
file asp.net-core upload .net-core asp.net-core-2.1
file asp.net-core upload .net-core asp.net-core-2.1
asked Nov 25 '18 at 22:24
lsotovlsotov
4118
asked Nov 25 '18 at 22:24
lsotovlsotov
4118
asked Nov 25 '18 at 22:24
lsotovlsotov
4118
asked Nov 25 '18 at 22:24
lsotovlsotov
4118
asked Nov 25 '18 at 22:24
lsotovlsotov
4118
4118
I don't think you can load the files in to a form, you can however display that file by exposing a stream, what kind of file is it?
– Anton Toshik
Nov 25 '18 at 22:55
I'm working with images
– lsotov
Nov 25 '18 at 23:17
Not what you are asking for, but I recommend displaying the image, and just having a checkbox if someone wants to override the image. Store your path to the image in a hidden input field.
– Anton Toshik
Nov 25 '18 at 23:19
why not simply send back base64-encoded characters to client side?
– itminus
Nov 26 '18 at 3:06
add a comment |
I don't think you can load the files in to a form, you can however display that file by exposing a stream, what kind of file is it?
– Anton Toshik
Nov 25 '18 at 22:55
I'm working with images
– lsotov
Nov 25 '18 at 23:17
Not what you are asking for, but I recommend displaying the image, and just having a checkbox if someone wants to override the image. Store your path to the image in a hidden input field.
– Anton Toshik
Nov 25 '18 at 23:19
why not simply send back base64-encoded characters to client side?
– itminus
Nov 26 '18 at 3:06
I don't think you can load the files in to a form, you can however display that file by exposing a stream, what kind of file is it?
– Anton Toshik
Nov 25 '18 at 22:55
I don't think you can load the files in to a form, you can however display that file by exposing a stream, what kind of file is it?
– Anton Toshik
Nov 25 '18 at 22:55
I'm working with images
– lsotov
Nov 25 '18 at 23:17
I'm working with images
– lsotov
Nov 25 '18 at 23:17
Not what you are asking for, but I recommend displaying the image, and just having a checkbox if someone wants to override the image. Store your path to the image in a hidden input field.
– Anton Toshik
Nov 25 '18 at 23:19
Not what you are asking for, but I recommend displaying the image, and just having a checkbox if someone wants to override the image. Store your path to the image in a hidden input field.
– Anton Toshik
Nov 25 '18 at 23:19
why not simply send back base64-encoded characters to client side?
– itminus
Nov 26 '18 at 3:06
why not simply send back base64-encoded characters to client side?
– itminus
Nov 26 '18 at 3:06
add a comment |
1 Answer
1
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You can return the uploaded file as base64 encoded string:
[ProducesResponseType(200, Type = typeof(string))]
public async Task<IActionResult> UploadImage(IFormFile file)
{
// your other code
if (file.Length > 0)
{
using (var ms = new MemoryStream())
{
file.CopyTo(ms);
var fileBytes = ms.ToArray();
string s = Convert.ToBase64String(fileBytes);
return new OkObjectResult(s);
}
}
}
On the client side you can show the image like so:
<img src="data:image/png;base64, iVBORw0KGgoAAAANSUhEUgAAAAUA
AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO
9TXL0Y4OHwAAAABJRU5ErkJggg==" alt="test image" />
To use the above you need to know the ContentType. You can find this by using:
file.ContentType
answered Dec 5 '18 at 8:49
Tarik TutuncuTarik Tutuncu
496210
@Isotov have you tried this? Have you solved your problem?
– Tarik Tutuncu
Dec 7 '18 at 10:06
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
You can return the uploaded file as base64 encoded string:
[ProducesResponseType(200, Type = typeof(string))]
public async Task<IActionResult> UploadImage(IFormFile file)
{
// your other code
if (file.Length > 0)
{
using (var ms = new MemoryStream())
{
file.CopyTo(ms);
var fileBytes = ms.ToArray();
string s = Convert.ToBase64String(fileBytes);
return new OkObjectResult(s);
}
}
}
On the client side you can show the image like so:
<img src="data:image/png;base64, iVBORw0KGgoAAAANSUhEUgAAAAUA
AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO
9TXL0Y4OHwAAAABJRU5ErkJggg==" alt="test image" />
To use the above you need to know the ContentType. You can find this by using:
file.ContentType
answered Dec 5 '18 at 8:49
Tarik TutuncuTarik Tutuncu
496210
@Isotov have you tried this? Have you solved your problem?
– Tarik Tutuncu
Dec 7 '18 at 10:06
add a comment |
0
You can return the uploaded file as base64 encoded string:
[ProducesResponseType(200, Type = typeof(string))]
public async Task<IActionResult> UploadImage(IFormFile file)
{
// your other code
if (file.Length > 0)
{
using (var ms = new MemoryStream())
{
file.CopyTo(ms);
var fileBytes = ms.ToArray();
string s = Convert.ToBase64String(fileBytes);
return new OkObjectResult(s);
}
}
}
On the client side you can show the image like so:
<img src="data:image/png;base64, iVBORw0KGgoAAAANSUhEUgAAAAUA
AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO
9TXL0Y4OHwAAAABJRU5ErkJggg==" alt="test image" />
To use the above you need to know the ContentType. You can find this by using:
file.ContentType
answered Dec 5 '18 at 8:49
Tarik TutuncuTarik Tutuncu
496210
@Isotov have you tried this? Have you solved your problem?
– Tarik Tutuncu
Dec 7 '18 at 10:06
add a comment |
0
0
0
You can return the uploaded file as base64 encoded string:
[ProducesResponseType(200, Type = typeof(string))]
public async Task<IActionResult> UploadImage(IFormFile file)
{
// your other code
if (file.Length > 0)
{
using (var ms = new MemoryStream())
{
file.CopyTo(ms);
var fileBytes = ms.ToArray();
string s = Convert.ToBase64String(fileBytes);
return new OkObjectResult(s);
}
}
}
On the client side you can show the image like so:
<img src="data:image/png;base64, iVBORw0KGgoAAAANSUhEUgAAAAUA
AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO
9TXL0Y4OHwAAAABJRU5ErkJggg==" alt="test image" />
To use the above you need to know the ContentType. You can find this by using:
file.ContentType
answered Dec 5 '18 at 8:49
Tarik TutuncuTarik Tutuncu
496210
You can return the uploaded file as base64 encoded string:
[ProducesResponseType(200, Type = typeof(string))]
public async Task<IActionResult> UploadImage(IFormFile file)
{
// your other code
if (file.Length > 0)
{
using (var ms = new MemoryStream())
{
file.CopyTo(ms);
var fileBytes = ms.ToArray();
string s = Convert.ToBase64String(fileBytes);
return new OkObjectResult(s);
}
}
}
On the client side you can show the image like so:
<img src="data:image/png;base64, iVBORw0KGgoAAAANSUhEUgAAAAUA
AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO
9TXL0Y4OHwAAAABJRU5ErkJggg==" alt="test image" />
To use the above you need to know the ContentType. You can find this by using:
file.ContentType
answered Dec 5 '18 at 8:49
Tarik TutuncuTarik Tutuncu
496210
answered Dec 5 '18 at 8:49
Tarik TutuncuTarik Tutuncu
496210
answered Dec 5 '18 at 8:49
Tarik TutuncuTarik Tutuncu
496210
answered Dec 5 '18 at 8:49
Tarik TutuncuTarik Tutuncu
496210
496210
@Isotov have you tried this? Have you solved your problem?
– Tarik Tutuncu
Dec 7 '18 at 10:06
add a comment |
@Isotov have you tried this? Have you solved your problem?
– Tarik Tutuncu
Dec 7 '18 at 10:06
@Isotov have you tried this? Have you solved your problem?
– Tarik Tutuncu
Dec 7 '18 at 10:06
@Isotov have you tried this? Have you solved your problem?
– Tarik Tutuncu
Dec 7 '18 at 10:06
add a comment |
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I don't think you can load the files in to a form, you can however display that file by exposing a stream, what kind of file is it?
– Anton Toshik
Nov 25 '18 at 22:55
I'm working with images
– lsotov
Nov 25 '18 at 23:17
Not what you are asking for, but I recommend displaying the image, and just having a checkbox if someone wants to override the image. Store your path to the image in a hidden input field.
– Anton Toshik
Nov 25 '18 at 23:19
why not simply send back base64-encoded characters to client side?
– itminus
Nov 26 '18 at 3:06