Programmatically change web service information in app.config

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  • Andrew Jocelyn
    #1

    Programmatically change web service information in app.config

    Hi

    How do I programmaticall y change (read/write) the values in this app.config
    file at runtime? Specifically I want to change the client endpoint address
    but it would be nice to change other values too. I thought this is what
    ServiceHost is for but is seems way more complicated to use for what I'm
    trying to do.

    <system.service Model>
    <bindings>
    <basicHttpBindi ng>
    <binding name="DataServi ceSoap" closeTimeout="0 0:01:00"
    openTimeout="00 :01:00"
    receiveTimeout= "01:00:00" sendTimeout="00 :01:00"
    allowCookies="f alse"
    bypassProxyOnLo cal="false"
    hostNameCompari sonMode="Strong Wildcard"
    maxBufferSize=" 67108864" maxBufferPoolSi ze="524288"
    maxReceivedMess ageSize="671088 64"
    messageEncoding ="Text" textEncoding="u tf-8"
    transferMode="B uffered"
    useDefaultWebPr oxy="true">
    <readerQuotas maxDepth="32" maxStringConten tLength="8192"
    maxArrayLength= "16384"
    maxBytesPerRead ="4096" maxNameTableCha rCount="16384" />
    <security mode="None">
    <transport clientCredentia lType="None"
    proxyCredential Type="None"
    realm="" />
    <message clientCredentia lType="UserName "
    algorithmSuite= "Default" />
    </security>
    </binding>
    </basicHttpBindin g>
    </bindings>
    <client>
    <endpoint address="http://webservice.com/Service.asmx"
    binding="basicH ttpBinding" bindingConfigur ation="DataServ iceSoap"
    contract="MySer vice.DataServic eSoap" name="DataServi ceSoap" />
    </client>
    </system.serviceM odel>

    Many thanks
    Andrew


    Tags: None
    • Alvin Bruney [ASP.NET MVP]
      #2
      Re: Programmaticall y change web service information in app.config

      It's a file, you can read and write it as normal. However, you will restart
      the application. Now, step back a bit. Endpoints are established ahead of
      time and configured accordingly. Your requirement is about the same as
      rewriting a browser url so that clients can hit this new url. Why not
      publish the url ahead of time? Why the strange requirement?

      --

      Regards,
      Alvin Bruney [MVP ASP.NET]

      [Shameless Author plug]
      Download OWC Black Book, 2nd Edition
      Exclusively on www.lulu.com/owc $15.00
      Need a free copy of VSTS 2008 w/ MSDN Premium?
      http://msmvps.com/blogs/alvin/Default.aspx

      -------------------------------------------------------


      "Andrew Jocelyn" <j055@newsgroup s.nospamwrote in message
      news:ODLig9W$IH A.4800@TK2MSFTN GP03.phx.gbl...
      Hi
      >
      How do I programmaticall y change (read/write) the values in this
      app.config file at runtime? Specifically I want to change the client
      endpoint address but it would be nice to change other values too. I
      thought this is what ServiceHost is for but is seems way more complicated
      to use for what I'm trying to do.
      >
      <system.service Model>
      <bindings>
      <basicHttpBindi ng>
      <binding name="DataServi ceSoap" closeTimeout="0 0:01:00"
      openTimeout="00 :01:00"
      receiveTimeout= "01:00:00" sendTimeout="00 :01:00"
      allowCookies="f alse"
      bypassProxyOnLo cal="false"
      hostNameCompari sonMode="Strong Wildcard"
      maxBufferSize=" 67108864" maxBufferPoolSi ze="524288"
      maxReceivedMess ageSize="671088 64"
      messageEncoding ="Text" textEncoding="u tf-8"
      transferMode="B uffered"
      useDefaultWebPr oxy="true">
      <readerQuotas maxDepth="32" maxStringConten tLength="8192"
      maxArrayLength= "16384"
      maxBytesPerRead ="4096" maxNameTableCha rCount="16384" />
      <security mode="None">
      <transport clientCredentia lType="None"
      proxyCredential Type="None"
      realm="" />
      <message clientCredentia lType="UserName "
      algorithmSuite= "Default" />
      </security>
      </binding>
      </basicHttpBindin g>
      </bindings>
      <client>
      <endpoint address="http://webservice.com/Service.asmx"
      binding="basicH ttpBinding" bindingConfigur ation="DataServ iceSoap"
      contract="MySer vice.DataServic eSoap" name="DataServi ceSoap" />
      </client>
      </system.serviceM odel>
      >
      Many thanks
      Andrew
      >

        Comment

        • Jeff Dillon
          #3
          Re: Programmaticall y change web service information in app.config

          "Alvin Bruney [ASP.NET MVP]" <vapor dan using hot male spam filterwrote in
          message news:FBE1F43F-6713-49EA-B21C-58FDD09148E2@mi crosoft.com...
          It's a file, you can read and write it as normal. However, you will
          restart the application. Now, step back a bit. Endpoints are established
          ahead of time and configured accordingly. Your requirement is about the
          same as rewriting a browser url so that clients can hit this new url. Why
          not publish the url ahead of time? Why the strange requirement?
          >
          --
          >
          Regards,
          Alvin Bruney [MVP ASP.NET]
          >
          [Shameless Author plug]
          Download OWC Black Book, 2nd Edition
          Exclusively on www.lulu.com/owc $15.00
          Need a free copy of VSTS 2008 w/ MSDN Premium?
          http://msmvps.com/blogs/alvin/Default.aspx

          -------------------------------------------------------
          >
          >
          "Andrew Jocelyn" <j055@newsgroup s.nospamwrote in message
          news:ODLig9W$IH A.4800@TK2MSFTN GP03.phx.gbl...
          >Hi
          >>
          >How do I programmaticall y change (read/write) the values in this
          >app.config file at runtime? Specifically I want to change the client
          >endpoint address but it would be nice to change other values too. I
          >thought this is what ServiceHost is for but is seems way more complicated
          >to use for what I'm trying to do.
          >>
          > <system.service Model>
          > <bindings>
          > <basicHttpBindi ng>
          > <binding name="DataServi ceSoap" closeTimeout="0 0:01:00"
          >openTimeout="0 0:01:00"
          > receiveTimeout= "01:00:00" sendTimeout="00 :01:00"
          >allowCookies=" false"
          > bypassProxyOnLo cal="false"
          >hostNameCompar isonMode="Stron gWildcard"
          > maxBufferSize=" 67108864" maxBufferPoolSi ze="524288"
          >maxReceivedMes sageSize="67108 864"
          > messageEncoding ="Text" textEncoding="u tf-8"
          >transferMode=" Buffered"
          > useDefaultWebPr oxy="true">
          > <readerQuotas maxDepth="32" maxStringConten tLength="8192"
          >maxArrayLength ="16384"
          > maxBytesPerRead ="4096" maxNameTableCha rCount="16384" />
          > <security mode="None">
          > <transport clientCredentia lType="None"
          >proxyCredentia lType="None"
          > realm="" />
          > <message clientCredentia lType="UserName "
          >algorithmSuite ="Default" />
          > </security>
          > </binding>
          > </basicHttpBindin g>
          > </bindings>
          > <client>
          > <endpoint address="http://webservice.com/Service.asmx"
          > binding="basicH ttpBinding"
          >bindingConfigu ration="DataSer viceSoap"
          > contract="MySer vice.DataServic eSoap" name="DataServi ceSoap" />
          > </client>
          > </system.serviceM odel>
          >>
          >Many thanks
          >Andrew
          >>
          No, that is not a good solution. How do you programmaticall y change the
          endpoints? We have the same requirement. I suspect we can just define two
          endpoints (binding names) in the config as you suggest however, then choose
          which one to use at runtime. We have an application that needs to easily
          switch between sandbox and production environment web services.

          Jeff


            Comment

            • Andrew Jocelyn
              #4
              Re: Programmaticall y change web service information in app.config

              OK, this is the situation.

              The windows form client is a ClickOnce app and will be downloaded from a
              central location. It needs some default config but the webservice it will
              need to connect to will be customer specific, i.e. each client will need to
              connect to their own URL.

              Perhaps this is poor design but it's more secure than allowing all clients
              to connect to a single service. I know I can deserialize/serialize the
              app.config but there must be a preferred way to modify these particular
              settings. I don't want the user to modify the file directly.

              Also it seems like there may be occasions when things like maxBufferSize
              need to be tweaked so an interface of seems like it should be a common
              requirement to me. What do other people do?

              Thanks
              Andrew



              "Alvin Bruney [ASP.NET MVP]" <vapor dan using hot male spam filterwrote in
              message news:FBE1F43F-6713-49EA-B21C-58FDD09148E2@mi crosoft.com...
              It's a file, you can read and write it as normal. However, you will
              restart the application. Now, step back a bit. Endpoints are established
              ahead of time and configured accordingly. Your requirement is about the
              same as rewriting a browser url so that clients can hit this new url. Why
              not publish the url ahead of time? Why the strange requirement?
              >
              --
              >
              Regards,
              Alvin Bruney [MVP ASP.NET]
              >
              [Shameless Author plug]
              Download OWC Black Book, 2nd Edition
              Exclusively on www.lulu.com/owc $15.00
              Need a free copy of VSTS 2008 w/ MSDN Premium?
              http://msmvps.com/blogs/alvin/Default.aspx

              -------------------------------------------------------
              >
              >
              "Andrew Jocelyn" <j055@newsgroup s.nospamwrote in message
              news:ODLig9W$IH A.4800@TK2MSFTN GP03.phx.gbl...
              >Hi
              >>
              >How do I programmaticall y change (read/write) the values in this
              >app.config file at runtime? Specifically I want to change the client
              >endpoint address but it would be nice to change other values too. I
              >thought this is what ServiceHost is for but is seems way more complicated
              >to use for what I'm trying to do.
              >>
              > <system.service Model>
              > <bindings>
              > <basicHttpBindi ng>
              > <binding name="DataServi ceSoap" closeTimeout="0 0:01:00"
              >openTimeout="0 0:01:00"
              > receiveTimeout= "01:00:00" sendTimeout="00 :01:00"
              >allowCookies=" false"
              > bypassProxyOnLo cal="false"
              >hostNameCompar isonMode="Stron gWildcard"
              > maxBufferSize=" 67108864" maxBufferPoolSi ze="524288"
              >maxReceivedMes sageSize="67108 864"
              > messageEncoding ="Text" textEncoding="u tf-8"
              >transferMode=" Buffered"
              > useDefaultWebPr oxy="true">
              > <readerQuotas maxDepth="32" maxStringConten tLength="8192"
              >maxArrayLength ="16384"
              > maxBytesPerRead ="4096" maxNameTableCha rCount="16384" />
              > <security mode="None">
              > <transport clientCredentia lType="None"
              >proxyCredentia lType="None"
              > realm="" />
              > <message clientCredentia lType="UserName "
              >algorithmSuite ="Default" />
              > </security>
              > </binding>
              > </basicHttpBindin g>
              > </bindings>
              > <client>
              > <endpoint address="http://webservice.com/Service.asmx"
              > binding="basicH ttpBinding"
              >bindingConfigu ration="DataSer viceSoap"
              > contract="MySer vice.DataServic eSoap" name="DataServi ceSoap" />
              > </client>
              > </system.serviceM odel>
              >>
              >Many thanks
              >Andrew
              >>

                Comment

                • Jeff Dillon
                  #5
                  Re: Programmaticall y change web service information in app.config


                  "Andrew Jocelyn" <j055@newsgroup s.nospamwrote in message
                  news:uDTEEGe$IH A.4616@TK2MSFTN GP06.phx.gbl...
                  OK, this is the situation.
                  >
                  The windows form client is a ClickOnce app and will be downloaded from a
                  central location. It needs some default config but the webservice it will
                  need to connect to will be customer specific, i.e. each client will need
                  to connect to their own URL.
                  >
                  Perhaps this is poor design but it's more secure than allowing all clients
                  to connect to a single service. I know I can deserialize/serialize the
                  app.config but there must be a preferred way to modify these particular
                  settings. I don't want the user to modify the file directly.
                  >
                  Also it seems like there may be occasions when things like maxBufferSize
                  need to be tweaked so an interface of seems like it should be a common
                  requirement to me. What do other people do?
                  >
                  Thanks
                  Andrew
                  >
                  >
                  >
                  "Alvin Bruney [ASP.NET MVP]" <vapor dan using hot male spam filterwrote
                  in message news:FBE1F43F-6713-49EA-B21C-58FDD09148E2@mi crosoft.com...
                  >It's a file, you can read and write it as normal. However, you will
                  >restart the application. Now, step back a bit. Endpoints are established
                  >ahead of time and configured accordingly. Your requirement is about the
                  >same as rewriting a browser url so that clients can hit this new url. Why
                  >not publish the url ahead of time? Why the strange requirement?
                  >>
                  >--
                  >>
                  >Regards,
                  >Alvin Bruney [MVP ASP.NET]
                  >>
                  >[Shameless Author plug]
                  >Download OWC Black Book, 2nd Edition
                  >Exclusively on www.lulu.com/owc $15.00
                  >Need a free copy of VSTS 2008 w/ MSDN Premium?
                  >http://msmvps.com/blogs/alvin/Default.aspx
                  >-------------------------------------------------------
                  >>
                  >>
                  >"Andrew Jocelyn" <j055@newsgroup s.nospamwrote in message
                  >news:ODLig9W$I HA.4800@TK2MSFT NGP03.phx.gbl.. .
                  >>Hi
                  >>>
                  >>How do I programmaticall y change (read/write) the values in this
                  >>app.config file at runtime? Specifically I want to change the client
                  >>endpoint address but it would be nice to change other values too. I
                  >>thought this is what ServiceHost is for but is seems way more
                  >>complicated to use for what I'm trying to do.
                  >>>
                  >> <system.service Model>
                  >> <bindings>
                  >> <basicHttpBindi ng>
                  >> <binding name="DataServi ceSoap" closeTimeout="0 0:01:00"
                  >>openTimeout=" 00:01:00"
                  >> receiveTimeout= "01:00:00" sendTimeout="00 :01:00"
                  >>allowCookies= "false"
                  >> bypassProxyOnLo cal="false"
                  >>hostNameCompa risonMode="Stro ngWildcard"
                  >> maxBufferSize=" 67108864" maxBufferPoolSi ze="524288"
                  >>maxReceivedMe ssageSize="6710 8864"
                  >> messageEncoding ="Text" textEncoding="u tf-8"
                  >>transferMode= "Buffered"
                  >> useDefaultWebPr oxy="true">
                  >> <readerQuotas maxDepth="32" maxStringConten tLength="8192"
                  >>maxArrayLengt h="16384"
                  >> maxBytesPerRead ="4096" maxNameTableCha rCount="16384" />
                  >> <security mode="None">
                  >> <transport clientCredentia lType="None"
                  >>proxyCredenti alType="None"
                  >> realm="" />
                  >> <message clientCredentia lType="UserName "
                  >>algorithmSuit e="Default" />
                  >> </security>
                  >> </binding>
                  >> </basicHttpBindin g>
                  >> </bindings>
                  >> <client>
                  >> <endpoint address="http://webservice.com/Service.asmx"
                  >> binding="basicH ttpBinding"
                  >>bindingConfig uration="DataSe rviceSoap"
                  >> contract="MySer vice.DataServic eSoap" name="DataServi ceSoap" />
                  >> </client>
                  >> </system.serviceM odel>
                  >>>
                  >>Many thanks
                  >>Andrew
                  >>>
                  >
                  >
                  Keep in mind that the web service proxy/client constructor is overloaded and
                  can take the endpoint address as a parameter


                    Comment

                    • Alvin Bruney [ASP.NET MVP]
                      #6
                      Re: Programmaticall y change web service information in app.config

                      OK, this is the situation.
                      Yes I suspected that was half the story but I wanted to be polite about it.

                      The recommended solution is to define multiple endpoints. Bear in mind, WCF
                      is designed to be coded once and configured appropriately in production.
                      Things like adding endpoints should not be addressed at the code level, they
                      should rightly be handled by support professional 'in production' with no
                      touch to the code.

                      --

                      Regards,
                      Alvin Bruney [MVP ASP.NET]

                      [Shameless Author plug]
                      Download OWC Black Book, 2nd Edition
                      Exclusively on www.lulu.com/owc $15.00
                      Need a free copy of VSTS 2008 w/ MSDN Premium?
                      http://msmvps.com/blogs/alvin/Default.aspx

                      -------------------------------------------------------


                      "Andrew Jocelyn" <j055@newsgroup s.nospamwrote in message
                      news:uDTEEGe$IH A.4616@TK2MSFTN GP06.phx.gbl...
                      OK, this is the situation.
                      >
                      The windows form client is a ClickOnce app and will be downloaded from a
                      central location. It needs some default config but the webservice it will
                      need to connect to will be customer specific, i.e. each client will need
                      to connect to their own URL.
                      >
                      Perhaps this is poor design but it's more secure than allowing all clients
                      to connect to a single service. I know I can deserialize/serialize the
                      app.config but there must be a preferred way to modify these particular
                      settings. I don't want the user to modify the file directly.
                      >
                      Also it seems like there may be occasions when things like maxBufferSize
                      need to be tweaked so an interface of seems like it should be a common
                      requirement to me. What do other people do?
                      >
                      Thanks
                      Andrew
                      >
                      >
                      >
                      "Alvin Bruney [ASP.NET MVP]" <vapor dan using hot male spam filterwrote
                      in message news:FBE1F43F-6713-49EA-B21C-58FDD09148E2@mi crosoft.com...
                      >It's a file, you can read and write it as normal. However, you will
                      >restart the application. Now, step back a bit. Endpoints are established
                      >ahead of time and configured accordingly. Your requirement is about the
                      >same as rewriting a browser url so that clients can hit this new url. Why
                      >not publish the url ahead of time? Why the strange requirement?
                      >>
                      >--
                      >>
                      >Regards,
                      >Alvin Bruney [MVP ASP.NET]
                      >>
                      >[Shameless Author plug]
                      >Download OWC Black Book, 2nd Edition
                      >Exclusively on www.lulu.com/owc $15.00
                      >Need a free copy of VSTS 2008 w/ MSDN Premium?
                      >http://msmvps.com/blogs/alvin/Default.aspx
                      >-------------------------------------------------------
                      >>
                      >>
                      >"Andrew Jocelyn" <j055@newsgroup s.nospamwrote in message
                      >news:ODLig9W$I HA.4800@TK2MSFT NGP03.phx.gbl.. .
                      >>Hi
                      >>>
                      >>How do I programmaticall y change (read/write) the values in this
                      >>app.config file at runtime? Specifically I want to change the client
                      >>endpoint address but it would be nice to change other values too. I
                      >>thought this is what ServiceHost is for but is seems way more
                      >>complicated to use for what I'm trying to do.
                      >>>
                      >> <system.service Model>
                      >> <bindings>
                      >> <basicHttpBindi ng>
                      >> <binding name="DataServi ceSoap" closeTimeout="0 0:01:00"
                      >>openTimeout=" 00:01:00"
                      >> receiveTimeout= "01:00:00" sendTimeout="00 :01:00"
                      >>allowCookies= "false"
                      >> bypassProxyOnLo cal="false"
                      >>hostNameCompa risonMode="Stro ngWildcard"
                      >> maxBufferSize=" 67108864" maxBufferPoolSi ze="524288"
                      >>maxReceivedMe ssageSize="6710 8864"
                      >> messageEncoding ="Text" textEncoding="u tf-8"
                      >>transferMode= "Buffered"
                      >> useDefaultWebPr oxy="true">
                      >> <readerQuotas maxDepth="32" maxStringConten tLength="8192"
                      >>maxArrayLengt h="16384"
                      >> maxBytesPerRead ="4096" maxNameTableCha rCount="16384" />
                      >> <security mode="None">
                      >> <transport clientCredentia lType="None"
                      >>proxyCredenti alType="None"
                      >> realm="" />
                      >> <message clientCredentia lType="UserName "
                      >>algorithmSuit e="Default" />
                      >> </security>
                      >> </binding>
                      >> </basicHttpBindin g>
                      >> </bindings>
                      >> <client>
                      >> <endpoint address="http://webservice.com/Service.asmx"
                      >> binding="basicH ttpBinding"
                      >>bindingConfig uration="DataSe rviceSoap"
                      >> contract="MySer vice.DataServic eSoap" name="DataServi ceSoap" />
                      >> </client>
                      >> </system.serviceM odel>
                      >>>
                      >>Many thanks
                      >>Andrew
                      >>>
                      >
                      >

                        Comment

                        • Andrew Jocelyn
                          #7
                          Re: Programmaticall y change web service information in app.config


                          Thanks Jeff
                          >
                          Keep in mind that the web service proxy/client constructor is overloaded
                          and can take the endpoint address as a parameter
                          >
                          That's the answer I was looking for. For now anyway.

                          Andrew


                            Comment

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