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Debugging a ClickOnce web-deployed appbe deployed via ClickOnce and set to "application is available online only". Before I published it, I tested it out, debugged, the whole 9 yards, and all worked smooth as can be. But once I publish/deploy it and run it, I am getting an "Object Reference not set to an instance of an object" error. Shortly after the app runs, the following property value is requested: Public ReadOnly Property WebsiteName() As String Get Dim queryString As NameValueCollection = GetQueryStringParameters() Dim URL As String = "" If queryString.HasKeys Then Dim protocol As String = queryString("prot").Trim() Dim server As String = queryString("server").Trim() URL = protocol & "//" & server End If Return URL End Get End Property The GetQueryStringParameters() function is as follows: Private Function GetQueryStringParameters() As NameValueCollection Dim nameValueTable As NameValueCollection = New NameValueCollection() Dim instance As ApplicationDeployment Try If (ApplicationDeployment.IsNetworkDeployed) Then instance = ApplicationDeployment.CurrentDeployment If Not IsNothing(instance) Then Dim activateUri As Uri = instance.ActivationUri If activateUri IsNot Nothing AndAlso activateUri.Query <> String.Empty Then nameValueTable = System.Web.HttpUtility.ParseQueryString(activateUri.Query) End If End If End If Catch ex As Exception Throw New Exception("BizLogic:GetQueryStringParameters() Failed:" & vbCrLf & ex.ToString) End Try Return nameValueTable End Function When I run/debug the app from Visual Studio, the ApplicationDeployment.IsNetworkDeployed returns FALSE so the above function never fully executes, it just returns a blank string. But when I publish/deploy the app, now that IF...THEN block does execute yet something inside it is throwing that Null Object error and I don't know what. I have tried using "System.Diagnostics.Debugger.Launch()" to get an instance of Visual Studio to let me debug, but when Visual Studio opens up, I get a warning message: "No symbols are loaded for any call stack frame. The source code cannot be displayed." and the only thing I can look at is the disassembly which looks like Machine Code. Any help is greatly appreciated. Thanks! -- Andrew Andrew,
With the Attach to process in the tab Debug you can attach an exe/dll to your visual studio project and then debug it. Cor Show quoteHide quote "Andrew Raastad" <notgi***@email.com> wrote in message news:A53D230C-7653-4B95-A549-D1A23C179EB7@microsoft.com... > Running into an error I can't figure out.... Have an application that is > to be deployed via ClickOnce and set to "application is available online > only". Before I published it, I tested it out, debugged, the whole 9 > yards, and all worked smooth as can be. But once I publish/deploy it and > run it, I am getting an "Object Reference not set to an instance of an > object" error. > > Shortly after the app runs, the following property value is requested: > > Public ReadOnly Property WebsiteName() As String > Get > Dim queryString As NameValueCollection = > GetQueryStringParameters() > Dim URL As String = "" > If queryString.HasKeys Then > Dim protocol As String = queryString("prot").Trim() > Dim server As String = queryString("server").Trim() > URL = protocol & "//" & server > End If > Return URL > End Get > End Property > > The GetQueryStringParameters() function is as follows: > > Private Function GetQueryStringParameters() As NameValueCollection > Dim nameValueTable As NameValueCollection = New > NameValueCollection() > Dim instance As ApplicationDeployment > > Try > If (ApplicationDeployment.IsNetworkDeployed) Then > instance = ApplicationDeployment.CurrentDeployment > If Not IsNothing(instance) Then > Dim activateUri As Uri = instance.ActivationUri > If activateUri IsNot Nothing AndAlso activateUri.Query > <> String.Empty Then > nameValueTable = > System.Web.HttpUtility.ParseQueryString(activateUri.Query) > End If > End If > End If > > Catch ex As Exception > Throw New Exception("BizLogic:GetQueryStringParameters() > Failed:" & vbCrLf & ex.ToString) > > End Try > > Return nameValueTable > > End Function > > > > When I run/debug the app from Visual Studio, the > ApplicationDeployment.IsNetworkDeployed returns FALSE so the above > function never fully executes, it just returns a blank string. But when I > publish/deploy the app, now that IF...THEN block does execute yet > something inside it is throwing that Null Object error and I don't know > what. > > I have tried using "System.Diagnostics.Debugger.Launch()" to get an > instance of Visual Studio to let me debug, but when Visual Studio opens > up, I get a warning message: "No symbols are loaded for any call stack > frame. The source code cannot be displayed." and the only thing I can look > at is the disassembly which looks like Machine Code. > > Any help is greatly appreciated. Thanks! > > -- Andrew > > Run the app, open VS2k8, Debug --> Attach to Process, find the app in the
list, click Attach and.... All I get is a single window with: "(Disassembly cannot be displayed in run mode.)" Any other ideas? -- Andrew Show quoteHide quote "Cor Ligthert[MVP]" <Notmyfirstn***@planet.nl> wrote in message news:%23dBdeMS2JHA.4632@TK2MSFTNGP02.phx.gbl... > Andrew, > > With the Attach to process in the tab Debug you can attach an exe/dll to > your visual studio project and then debug it. > > Cor > > "Andrew Raastad" <notgi***@email.com> wrote in message > news:A53D230C-7653-4B95-A549-D1A23C179EB7@microsoft.com... >> Running into an error I can't figure out.... Have an application that is >> to be deployed via ClickOnce and set to "application is available online >> only". Before I published it, I tested it out, debugged, the whole 9 >> yards, and all worked smooth as can be. But once I publish/deploy it and >> run it, I am getting an "Object Reference not set to an instance of an >> object" error. >> >> Shortly after the app runs, the following property value is requested: >> >> Public ReadOnly Property WebsiteName() As String >> Get >> Dim queryString As NameValueCollection = >> GetQueryStringParameters() >> Dim URL As String = "" >> If queryString.HasKeys Then >> Dim protocol As String = queryString("prot").Trim() >> Dim server As String = queryString("server").Trim() >> URL = protocol & "//" & server >> End If >> Return URL >> End Get >> End Property >> >> The GetQueryStringParameters() function is as follows: >> >> Private Function GetQueryStringParameters() As NameValueCollection >> Dim nameValueTable As NameValueCollection = New >> NameValueCollection() >> Dim instance As ApplicationDeployment >> >> Try >> If (ApplicationDeployment.IsNetworkDeployed) Then >> instance = ApplicationDeployment.CurrentDeployment >> If Not IsNothing(instance) Then >> Dim activateUri As Uri = instance.ActivationUri >> If activateUri IsNot Nothing AndAlso activateUri.Query >> <> String.Empty Then >> nameValueTable = >> System.Web.HttpUtility.ParseQueryString(activateUri.Query) >> End If >> End If >> End If >> >> Catch ex As Exception >> Throw New Exception("BizLogic:GetQueryStringParameters() >> Failed:" & vbCrLf & ex.ToString) >> >> End Try >> >> Return nameValueTable >> >> End Function >> >> >> >> When I run/debug the app from Visual Studio, the >> ApplicationDeployment.IsNetworkDeployed returns FALSE so the above >> function never fully executes, it just returns a blank string. But when >> I publish/deploy the app, now that IF...THEN block does execute yet >> something inside it is throwing that Null Object error and I don't know >> what. >> >> I have tried using "System.Diagnostics.Debugger.Launch()" to get an >> instance of Visual Studio to let me debug, but when Visual Studio opens >> up, I get a warning message: "No symbols are loaded for any call stack >> frame. The source code cannot be displayed." and the only thing I can >> look at is the disassembly which looks like Machine Code. >> >> Any help is greatly appreciated. Thanks! >> >> -- Andrew >> >> > Andrew Raastad wrote:
> Run the app, open VS2k8, Debug --> Attach to Process, find the app in Press Ctrl+Break?> the list, click Attach and.... > > All I get is a single window with: "(Disassembly cannot be displayed > in run mode.)" > > > Any other ideas? Armin Thanks to all who offered suggestions. I have been able to solve the
problems I was having, though I never could get the debugging aspect to work. Had to resort to message boxes to display variable values at certain places to find the problem I was encountering. I would, however, still like to know how you are supposed to debug an application after it has been compiled and completely separate from the Visual Studio environment. -- Andrew Show quoteHide quote "Cor Ligthert[MVP]" <Notmyfirstn***@planet.nl> wrote in message news:%23dBdeMS2JHA.4632@TK2MSFTNGP02.phx.gbl... > Andrew, > > With the Attach to process in the tab Debug you can attach an exe/dll to > your visual studio project and then debug it. > > Cor > > "Andrew Raastad" <notgi***@email.com> wrote in message > news:A53D230C-7653-4B95-A549-D1A23C179EB7@microsoft.com... >> Running into an error I can't figure out.... Have an application that is >> to be deployed via ClickOnce and set to "application is available online >> only". Before I published it, I tested it out, debugged, the whole 9 >> yards, and all worked smooth as can be. But once I publish/deploy it and >> run it, I am getting an "Object Reference not set to an instance of an >> object" error. >> >> Shortly after the app runs, the following property value is requested: >> >> Public ReadOnly Property WebsiteName() As String >> Get >> Dim queryString As NameValueCollection = >> GetQueryStringParameters() >> Dim URL As String = "" >> If queryString.HasKeys Then >> Dim protocol As String = queryString("prot").Trim() >> Dim server As String = queryString("server").Trim() >> URL = protocol & "//" & server >> End If >> Return URL >> End Get >> End Property >> >> The GetQueryStringParameters() function is as follows: >> >> Private Function GetQueryStringParameters() As NameValueCollection >> Dim nameValueTable As NameValueCollection = New >> NameValueCollection() >> Dim instance As ApplicationDeployment >> >> Try >> If (ApplicationDeployment.IsNetworkDeployed) Then >> instance = ApplicationDeployment.CurrentDeployment >> If Not IsNothing(instance) Then >> Dim activateUri As Uri = instance.ActivationUri >> If activateUri IsNot Nothing AndAlso activateUri.Query >> <> String.Empty Then >> nameValueTable = >> System.Web.HttpUtility.ParseQueryString(activateUri.Query) >> End If >> End If >> End If >> >> Catch ex As Exception >> Throw New Exception("BizLogic:GetQueryStringParameters() >> Failed:" & vbCrLf & ex.ToString) >> >> End Try >> >> Return nameValueTable >> >> End Function >> >> >> >> When I run/debug the app from Visual Studio, the >> ApplicationDeployment.IsNetworkDeployed returns FALSE so the above >> function never fully executes, it just returns a blank string. But when >> I publish/deploy the app, now that IF...THEN block does execute yet >> something inside it is throwing that Null Object error and I don't know >> what. >> >> I have tried using "System.Diagnostics.Debugger.Launch()" to get an >> instance of Visual Studio to let me debug, but when Visual Studio opens >> up, I get a warning message: "No symbols are loaded for any call stack >> frame. The source code cannot be displayed." and the only thing I can >> look at is the disassembly which looks like Machine Code. >> >> Any help is greatly appreciated. Thanks! >> >> -- Andrew >> >> > 
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