WPF add header to Image with URL pettitions [duplicate]
This question already has an answer here:
Image source URI requiring authorization
3 answers
Add header to all* HTTP requests on a machine
1 answer
first of all sorry for my english.
Recently I added some security in the backend of my project, and now I need to send a validation code(apiKey) inside the headers to retrieve the images.
I have a problem with ALL images in my project that I had attached in my UI.
For example, before I had:
<Image Height="90" Source="{Binding Video.Thumbnail}"/>
Now I need to change my code to create a CUSTOM petition add the apiKey in the header:
<Image Height="90">
<Image.Source>
<MultiBinding Converter="{local:GetFrameConverter}">
<Binding Path="ApiKey" IsAsync="True" />
<Binding Path="Video.Thumbnail" IsAsync="True" />
</MultiBinding>
</Image.Source>
</Image>
It works fine, but now I have a heavy problem of performance, because it download always the image no cache, and it seems that for example in a ListView is not Async, and it reloads when scroll is triggered. Furthermore sometimes when I'm requesting a lot of images at the same time I recieve corrupted images, I don't know why.
The behaivour when I assign via "the native" Source with URL works perfect.
So, Has a way to can define custom headers for the requests that goes to http/https resources in WPF by default?
And if is not a way by default, has a way to do it in the xaml tag (or in code-behind)?
NOTE: I already saw the question (Image source URI requiring authorization) I'm not fan of this solution I prefer use native way.. but it seems that is not possible.. I only want to be sure that is not possible. If not, How can I create this server proxy inside of my app?? Or I need tu run another server dedicated?
NOTE2: I'm using HTTPS
Thanks in advance!
wpf
asked Nov 19 '18 at 12:00
Riqui Pijoan GassóRiqui Pijoan Gassó
15
marked as duplicate by Clemens wpf
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Nov 19 '18 at 12:22
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
add a comment |
This question already has an answer here:
Image source URI requiring authorization
3 answers
Add header to all* HTTP requests on a machine
1 answer
first of all sorry for my english.
Recently I added some security in the backend of my project, and now I need to send a validation code(apiKey) inside the headers to retrieve the images.
I have a problem with ALL images in my project that I had attached in my UI.
For example, before I had:
<Image Height="90" Source="{Binding Video.Thumbnail}"/>
Now I need to change my code to create a CUSTOM petition add the apiKey in the header:
<Image Height="90">
<Image.Source>
<MultiBinding Converter="{local:GetFrameConverter}">
<Binding Path="ApiKey" IsAsync="True" />
<Binding Path="Video.Thumbnail" IsAsync="True" />
</MultiBinding>
</Image.Source>
</Image>
It works fine, but now I have a heavy problem of performance, because it download always the image no cache, and it seems that for example in a ListView is not Async, and it reloads when scroll is triggered. Furthermore sometimes when I'm requesting a lot of images at the same time I recieve corrupted images, I don't know why.
The behaivour when I assign via "the native" Source with URL works perfect.
So, Has a way to can define custom headers for the requests that goes to http/https resources in WPF by default?
And if is not a way by default, has a way to do it in the xaml tag (or in code-behind)?
NOTE: I already saw the question (Image source URI requiring authorization) I'm not fan of this solution I prefer use native way.. but it seems that is not possible.. I only want to be sure that is not possible. If not, How can I create this server proxy inside of my app?? Or I need tu run another server dedicated?
NOTE2: I'm using HTTPS
Thanks in advance!
wpf
asked Nov 19 '18 at 12:00
Riqui Pijoan GassóRiqui Pijoan Gassó
15
marked as duplicate by Clemens wpf
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Nov 19 '18 at 12:22
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
Your GetFrameConverter may explicitly cache images, e.g. by using ObjectCache. In order to also load images asynchronously you should move from a converter to another view model property, which would be bound asynchronously and return a frozen BitmapSource. Bindings do not support asynchronous converter calls, only the property getter may be called asynchronously.
– Clemens
Nov 19 '18 at 12:15
This is not my question.. If I don't have more ways to work, I will check how to change all of my code to can run better with my own pettition... But first I want to change the less things as possible in the code. but thanks..
– Riqui Pijoan Gassó
Nov 19 '18 at 12:17
@Clemens Thanks a lot for the #duplicate reference. I saw before .. but I'm surprised for that is impossible in native.. now I edited my question because I still don't know how to implement the answer that is marked as a solution. I'm very begginer with wpf and I understant the logic of the solution.. but i don't know how to start to implement a proxy inside my code. You know how it works, or only knows that exists that solution? Thanks!
– Riqui Pijoan Gassó
Nov 20 '18 at 9:06
add a comment |
This question already has an answer here:
Image source URI requiring authorization
3 answers
Add header to all* HTTP requests on a machine
1 answer
first of all sorry for my english.
Recently I added some security in the backend of my project, and now I need to send a validation code(apiKey) inside the headers to retrieve the images.
I have a problem with ALL images in my project that I had attached in my UI.
For example, before I had:
<Image Height="90" Source="{Binding Video.Thumbnail}"/>
Now I need to change my code to create a CUSTOM petition add the apiKey in the header:
<Image Height="90">
<Image.Source>
<MultiBinding Converter="{local:GetFrameConverter}">
<Binding Path="ApiKey" IsAsync="True" />
<Binding Path="Video.Thumbnail" IsAsync="True" />
</MultiBinding>
</Image.Source>
</Image>
It works fine, but now I have a heavy problem of performance, because it download always the image no cache, and it seems that for example in a ListView is not Async, and it reloads when scroll is triggered. Furthermore sometimes when I'm requesting a lot of images at the same time I recieve corrupted images, I don't know why.
The behaivour when I assign via "the native" Source with URL works perfect.
So, Has a way to can define custom headers for the requests that goes to http/https resources in WPF by default?
And if is not a way by default, has a way to do it in the xaml tag (or in code-behind)?
NOTE: I already saw the question (Image source URI requiring authorization) I'm not fan of this solution I prefer use native way.. but it seems that is not possible.. I only want to be sure that is not possible. If not, How can I create this server proxy inside of my app?? Or I need tu run another server dedicated?
NOTE2: I'm using HTTPS
Thanks in advance!
wpf
asked Nov 19 '18 at 12:00
Riqui Pijoan GassóRiqui Pijoan Gassó
15
This question already has an answer here:
Image source URI requiring authorization
3 answers
Add header to all* HTTP requests on a machine
1 answer
first of all sorry for my english.
Recently I added some security in the backend of my project, and now I need to send a validation code(apiKey) inside the headers to retrieve the images.
I have a problem with ALL images in my project that I had attached in my UI.
For example, before I had:
<Image Height="90" Source="{Binding Video.Thumbnail}"/>
Now I need to change my code to create a CUSTOM petition add the apiKey in the header:
<Image Height="90">
<Image.Source>
<MultiBinding Converter="{local:GetFrameConverter}">
<Binding Path="ApiKey" IsAsync="True" />
<Binding Path="Video.Thumbnail" IsAsync="True" />
</MultiBinding>
</Image.Source>
</Image>
It works fine, but now I have a heavy problem of performance, because it download always the image no cache, and it seems that for example in a ListView is not Async, and it reloads when scroll is triggered. Furthermore sometimes when I'm requesting a lot of images at the same time I recieve corrupted images, I don't know why.
The behaivour when I assign via "the native" Source with URL works perfect.
So, Has a way to can define custom headers for the requests that goes to http/https resources in WPF by default?
And if is not a way by default, has a way to do it in the xaml tag (or in code-behind)?
NOTE: I already saw the question (Image source URI requiring authorization) I'm not fan of this solution I prefer use native way.. but it seems that is not possible.. I only want to be sure that is not possible. If not, How can I create this server proxy inside of my app?? Or I need tu run another server dedicated?
NOTE2: I'm using HTTPS
Thanks in advance!
This question already has an answer here:
Image source URI requiring authorization
3 answers
Add header to all* HTTP requests on a machine
1 answer
wpf
wpf
asked Nov 19 '18 at 12:00
Riqui Pijoan GassóRiqui Pijoan Gassó
15
asked Nov 19 '18 at 12:00
Riqui Pijoan GassóRiqui Pijoan Gassó
15
edited Nov 21 '18 at 9:07
Riqui Pijoan Gassó
asked Nov 19 '18 at 12:00
Riqui Pijoan GassóRiqui Pijoan Gassó
15
asked Nov 19 '18 at 12:00
Riqui Pijoan GassóRiqui Pijoan Gassó
15
asked Nov 19 '18 at 12:00
Riqui Pijoan GassóRiqui Pijoan Gassó
15
15
marked as duplicate by Clemens wpf
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Nov 19 '18 at 12:22
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
marked as duplicate by Clemens wpf
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Nov 19 '18 at 12:22
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
Your GetFrameConverter may explicitly cache images, e.g. by using ObjectCache. In order to also load images asynchronously you should move from a converter to another view model property, which would be bound asynchronously and return a frozen BitmapSource. Bindings do not support asynchronous converter calls, only the property getter may be called asynchronously.
– Clemens
Nov 19 '18 at 12:15
This is not my question.. If I don't have more ways to work, I will check how to change all of my code to can run better with my own pettition... But first I want to change the less things as possible in the code. but thanks..
– Riqui Pijoan Gassó
Nov 19 '18 at 12:17
@Clemens Thanks a lot for the #duplicate reference. I saw before .. but I'm surprised for that is impossible in native.. now I edited my question because I still don't know how to implement the answer that is marked as a solution. I'm very begginer with wpf and I understant the logic of the solution.. but i don't know how to start to implement a proxy inside my code. You know how it works, or only knows that exists that solution? Thanks!
– Riqui Pijoan Gassó
Nov 20 '18 at 9:06
add a comment |
Your GetFrameConverter may explicitly cache images, e.g. by using ObjectCache. In order to also load images asynchronously you should move from a converter to another view model property, which would be bound asynchronously and return a frozen BitmapSource. Bindings do not support asynchronous converter calls, only the property getter may be called asynchronously.
– Clemens
Nov 19 '18 at 12:15
This is not my question.. If I don't have more ways to work, I will check how to change all of my code to can run better with my own pettition... But first I want to change the less things as possible in the code. but thanks..
– Riqui Pijoan Gassó
Nov 19 '18 at 12:17
@Clemens Thanks a lot for the #duplicate reference. I saw before .. but I'm surprised for that is impossible in native.. now I edited my question because I still don't know how to implement the answer that is marked as a solution. I'm very begginer with wpf and I understant the logic of the solution.. but i don't know how to start to implement a proxy inside my code. You know how it works, or only knows that exists that solution? Thanks!
– Riqui Pijoan Gassó
Nov 20 '18 at 9:06
Your GetFrameConverter may explicitly cache images, e.g. by using ObjectCache. In order to also load images asynchronously you should move from a converter to another view model property, which would be bound asynchronously and return a frozen BitmapSource. Bindings do not support asynchronous converter calls, only the property getter may be called asynchronously.
– Clemens
Nov 19 '18 at 12:15
Your GetFrameConverter may explicitly cache images, e.g. by using ObjectCache. In order to also load images asynchronously you should move from a converter to another view model property, which would be bound asynchronously and return a frozen BitmapSource. Bindings do not support asynchronous converter calls, only the property getter may be called asynchronously.
– Clemens
Nov 19 '18 at 12:15
This is not my question.. If I don't have more ways to work, I will check how to change all of my code to can run better with my own pettition... But first I want to change the less things as possible in the code. but thanks..
– Riqui Pijoan Gassó
Nov 19 '18 at 12:17
This is not my question.. If I don't have more ways to work, I will check how to change all of my code to can run better with my own pettition... But first I want to change the less things as possible in the code. but thanks..
– Riqui Pijoan Gassó
Nov 19 '18 at 12:17
@Clemens Thanks a lot for the #duplicate reference. I saw before .. but I'm surprised for that is impossible in native.. now I edited my question because I still don't know how to implement the answer that is marked as a solution. I'm very begginer with wpf and I understant the logic of the solution.. but i don't know how to start to implement a proxy inside my code. You know how it works, or only knows that exists that solution? Thanks!
– Riqui Pijoan Gassó
Nov 20 '18 at 9:06
@Clemens Thanks a lot for the #duplicate reference. I saw before .. but I'm surprised for that is impossible in native.. now I edited my question because I still don't know how to implement the answer that is marked as a solution. I'm very begginer with wpf and I understant the logic of the solution.. but i don't know how to start to implement a proxy inside my code. You know how it works, or only knows that exists that solution? Thanks!
– Riqui Pijoan Gassó
Nov 20 '18 at 9:06
add a comment |
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Your GetFrameConverter may explicitly cache images, e.g. by using ObjectCache. In order to also load images asynchronously you should move from a converter to another view model property, which would be bound asynchronously and return a frozen BitmapSource. Bindings do not support asynchronous converter calls, only the property getter may be called asynchronously.
– Clemens
Nov 19 '18 at 12:15
This is not my question.. If I don't have more ways to work, I will check how to change all of my code to can run better with my own pettition... But first I want to change the less things as possible in the code. but thanks..
– Riqui Pijoan Gassó
Nov 19 '18 at 12:17
@Clemens Thanks a lot for the #duplicate reference. I saw before .. but I'm surprised for that is impossible in native.. now I edited my question because I still don't know how to implement the answer that is marked as a solution. I'm very begginer with wpf and I understant the logic of the solution.. but i don't know how to start to implement a proxy inside my code. You know how it works, or only knows that exists that solution? Thanks!
– Riqui Pijoan Gassó
Nov 20 '18 at 9:06