DeploymentDownloadException Class
Indicates that there was an error downloading either the ClickOnce manifests or the deployment's files to the client computer.
System::Exception
System::SystemException
System.Deployment.Application::DeploymentException
System.Deployment.Application::DeploymentDownloadException
Assembly: System.Deployment (in System.Deployment.dll)
The DeploymentDownloadException type exposes the following members.
| Name | Description | |
|---|---|---|
![]() | DeploymentDownloadException() | Initializes a new instance of the DeploymentDownloadException class. |
![]() | DeploymentDownloadException(String) | Initializes a new instance of the DeploymentDownloadException class with a message that describes the exception. |
![]() | DeploymentDownloadException(SerializationInfo, StreamingContext) | Initializes a new instance of the DeploymentDownloadException class. |
![]() | DeploymentDownloadException(String, Exception) | Initializes a new instance of the DeploymentDownloadException class. |
| Name | Description | |
|---|---|---|
![]() | Data | Gets a collection of key/value pairs that provide additional user-defined information about the exception. (Inherited from Exception.) |
![]() | HelpLink | Gets or sets a link to the help file associated with this exception. (Inherited from Exception.) |
![]() | HResult | Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception. (Inherited from Exception.) |
![]() | InnerException | Gets the Exception instance that caused the current exception. (Inherited from Exception.) |
![]() | Message | Gets a message that describes the current exception. (Inherited from Exception.) |
![]() | Source | Gets or sets the name of the application or the object that causes the error. (Inherited from Exception.) |
![]() | StackTrace | Gets a string representation of the immediate frames on the call stack. (Inherited from Exception.) |
![]() | TargetSite | Gets the method that throws the current exception. (Inherited from Exception.) |
| Name | Description | |
|---|---|---|
![]() | Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
![]() | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
![]() | GetBaseException | When overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions. (Inherited from Exception.) |
![]() | GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
![]() | GetObjectData | When overridden in a derived class, sets the SerializationInfo with information about the exception. (Inherited from DeploymentException.) |
![]() | GetType | Gets the runtime type of the current instance. (Inherited from Exception.) |
![]() | MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
![]() | ToString | Creates and returns a string representation of the current exception. (Inherited from Exception.) |
| Name | Description | |
|---|---|---|
![]() | SerializeObjectState | Occurs when an exception is serialized to create an exception state object that contains serialized data about the exception. (Inherited from Exception.) |
A DeploymentDownloadException can indicate that a number of problems occurred when the user tried to download a ClickOnce application update:
The client's computer's network connection is down.
The Web server, FTP server, or file share hosting the update is unavailable.
One or more of the files in the ClickOnce deployment was not found.
To obtain detailed error information about an exception, consult the ClickOnce error log. For more information, see Troubleshooting ClickOnce Deployments.
The following code example installs an application update synchronously, and reports to the user if there was a problem downloading either the manifests or the deployment's files.
public: void LaunchUpdateWithTimeout() { if (ApplicationDeployment::IsNetworkDeployed) { ApplicationDeployment^ appDeployment = ApplicationDeployment::CurrentDeployment; appDeployment->UpdateCompleted += gcnew AsyncCompletedEventHandler(this, &Form1::deploy_UpdateCompleted); // The Interval property uses millisecond resolution. timer1->Interval = (1000 * 60) * 2; timer1->Start(); appDeployment->UpdateAsync(); } } private: void deploy_UpdateCompleted(Object^ sender, AsyncCompletedEventArgs^ e) { timer1->Stop(); if (!e->Cancelled) { if (nullptr == e->Error) { Application::Restart(); } else { // Replace with your own error reporting or logging. MessageBox::Show( "The update of the application encountered an " + "error. Error message: {0}", e->Error->Message); } } else { // Replace with your own error reporting or logging. MessageBox::Show( "The application update was cancelled because the update " + "server was unreachable. Please try again later."); } } private: void timer1_Tick(Object^ sender, EventArgs^ e) { if (ApplicationDeployment::IsNetworkDeployed) { ApplicationDeployment::CurrentDeployment->UpdateAsyncCancel(); } }
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

