Trying to pass an image from client through SL 4 WCF

Trying to pass an image from client through SL 4 WCF

I have images and videos I will need to pass from the client to the server side where I will save the image/video on the server and a link to it in the database.  When I try to pass the image (very small picture) I get:

The maximum array length quota (16384) has been exceeded while reading XML data

Here is my code

ServicesReverences.ClientConfig file

<configuration>      <system.serviceModel>          <bindings>            <customBinding>                <binding name="CustomBinding_wcfDataLayer">                    <binaryMessageEncoding />                    <httpTransport maxReceivedMessageSize="5242880" maxBufferSize="5242880" />                </binding>            </customBinding>                    </bindings>          <client>              <endpoint address="http://localhost:59582/wcfDataLayer.svc" binding="customBinding"                  bindingConfiguration="CustomBinding_wcfDataLayer" contract="dataProxy.wcfDataLayer"                  name="CustomBinding_wcfDataLayer" />          </client>      </system.serviceModel>  </configuration>

Code on button to pass the image to the WCF

Private Sub btnFindPictureDialog_Click(ByVal sender As Object, ByVal e As System.Windows.RoutedEventArgs)          ' Create an instance of the open file dialog box.          Dim openFileDialog1 As OpenFileDialog = New OpenFileDialog            openFileDialog1.Filter = "Jpeg (*.jpg)|*.jpg|Gif (*.gif)|*.gif|Png (*.png)|*.png"          openFileDialog1.FilterIndex = 1           Dim UserClickedOK As Boolean = openFileDialog1.ShowDialog            If UserClickedOK Then              If openFileDialog1.File.ToString().Trim() <> "" Then                  txtResults.Text = openFileDialog1.File.ToString()                  btnAddPictureToAlbum.IsEnabled = True                    'build the image file to store                  Dim stream As Stream = DirectCast(openFileDialog1.File.OpenRead(), Stream)                  Dim bytes As Byte() = New Byte(stream.Length) {}                  stream.Read(bytes, 0, CInt(stream.Length))                    Dim fileName As String = openFileDialog1.File.Name                    Dim imagefile As New dataProxy.clsImageFile                  imagefile.ImageName = fileName                  imagefile.Imagestream = bytes                    Dim albumEntity As New dataProxy.AlbumEntity                  albumEntity.AlbumName = DirectCast(grdAlbums.Columns(0).GetCellContent(grdAlbums.SelectedItem), TextBlock).Text() 'album name from datagrid                  albumEntity.ID = DirectCast(grdAlbums.Columns(1).GetCellContent(grdAlbums.SelectedItem), TextBlock).Text() 'album id from the data grid                    Dim galleryEntity As New dataProxy.GalleryEntity                  galleryEntity.PicType = "P"                  galleryEntity.PicDate = Today.ToShortDateString()                  galleryEntity.PicTime = TimeOfDay().ToString("t")                    _proxy.UploadAsync(imagefile, albumEntity, galleryEntity) <============= I get the error message here                  AddHandler _proxy.UploadCompleted, AddressOf _proxy_UploadCompleted                End If            End If      End Sub

Any help is greatly appreciated

Answers & Comments...

Answer: 1

Hi skifreak,

You need to set the readerquotas on the binding both on the server side and the client side, to allow bigger arrays, you need to change 2 config files, the client's app.config and the Server's config file.

<readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647"   maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />  

For details, you can refer from here:

http://scorpiotek.com/blog/?p=393

Best Regards,

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Answer: 2

OK I was able to add to the web.config per the link you gave me but I don't have an app.config.  I have 3 projects (Web, SL, Business logic).  I have a web.config in my web project

I have a ServicesReferences.ClientConfig in my SL project

I have an app.config in my Business Logic and all it has are listeners and connection string information.

What am I missing?

Mark

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Answer: 3

You wil need to adjust the httpRuntime maxRequestLength value in you web.config to increase the file upload max size.  Read here for more info:

http://msdn.microsoft.com/en-us/library/e1f13641(v=vs.71).aspx

Here is an example web.config I use for large file uploads:

<!-- Allows for large files to be passed into the service. -->  <!-- Default is 4mb, below is setting it to 40mb. -->  <system.web>    <httpRuntime maxRequestLength="40960" />  </system.web>      <bindings>    <customBinding>      <!-- Defines the http binding for the WCF services with qoutas maxed out. -->      <!-- Uses Negotiate authentication, see here for other options: http://msdn.microsoft.com/en-us/library/ms789031.aspx  -->      <binding name="binaryHttpBinding" closeTimeout="00:20:00" openTimeout="00:20:00" receiveTimeout="00:20:00" sendTimeout="00:20:00">        <binaryMessageEncoding maxReadPoolSize="2147483647" maxWritePoolSize="2147483647" maxSessionSize="2147483647">          <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />        </binaryMessageEncoding>        <httpTransport maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647" authenticationScheme="Negotiate" maxBufferSize="2147483647" transferMode="Buffered" />      </binding>    </customBinding>  </bindings>    <!-- Sets up the behaviors for the WCF services allowing for http traffic -->  <!-- and sets the maxItemsInObjectGraph attribute to handle large service calls. -->  <behaviors>    <serviceBehaviors>      <behavior name="WCFServiceBehavior">        <serviceMetadata httpGetEnabled="true" />        <serviceDebug includeExceptionDetailInFaults="true" />        <dataContractSerializer maxItemsInObjectGraph="2147483647" />      </behavior>    </serviceBehaviors>  </behaviors>    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />    <-- Sets a WCF service to use the above defined web.config entries. -->  <services>    <service behaviorConfiguration="WCFServiceBehavior" name="WCFService">      <endpoint address="" binding="customBinding" bindingConfiguration="binaryHttpBinding" contract="WCFService" />    </service>  </services>  

 

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Answer: 4

I used your binding settings (I was close but I saw where I couldn't find the settings) and I made it past that nasty error!  Thanks a ton!

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