WPF add header to Image with URL pettitions [duplicate]











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  • 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







share|improve this question















marked as duplicate by Clemens wpf
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 Nov 19 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 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 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
    2 days ago















up vote
0
down vote

favorite













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







share|improve this question















marked as duplicate by Clemens wpf
Users with the  wpf badge can single-handedly close wpf questions as duplicates and reopen them as needed.

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 Nov 19 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 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 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
    2 days ago













up vote
0
down vote

favorite









up vote
0
down vote

favorite












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







share|improve this question
















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






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited yesterday

























asked Nov 19 at 12:00









Riqui Pijoan Gassó

15




15




marked as duplicate by Clemens wpf
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 Nov 19 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
Users with the  wpf badge can single-handedly close wpf questions as duplicates and reopen them as needed.

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 Nov 19 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 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 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
    2 days ago


















  • 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 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 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
    2 days ago
















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 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 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 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 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
2 days ago




@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
2 days ago

















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