Uninstalling a software with C#

[AkbarAzizi]

Hi,

I am working on a program which must be used to install/uninstall some software. I am using ManagementObjec t together with a ManagementOpera tionObserver in order to update a progressbar. Everything works unless updating the progressbar.

Is there anybody who has experience with this feauture?

-Akbar Azizi

[tlhintoq]

So not making an .MSI installer?

[AkbarAzizi]

I am not making an .MSI installer.

The software, my program must install/uninstall is Uniprint, Adobe Reader, and Citrix. My problem is that, when I get notification from my observer, and I try to update the progressbar, everything stucks. The progress event should - according to its specification - also tell me how many procent of the process is gone/left but context and Uppebound is always 0!

[tlhintoq]

I think seeing your code for this part will help a lot

[AkbarAzizi]

Here you go:

internal static void Progress(object Sender, System.Management.ProgressEventArgs Args)                    
{
      // Tell the form to update its progressbar
       _Owner.ProgressChangedDelegate(Sender, _Owner, Args);
}
 
internal static void Completed(object Sender, System.Management.CompletedEventArgs Args)
{       
       _Owner.ProgressCompletedDelegate(Sender, _Owner, Args);
}

………..
………..


private string Uninstall(string Path)
{
   ManagementObject Product = new ManagementObject(Path);
   System.Management.ManagementOperationObserver WMIObserver;

   WMIObserver = new System.Management.ManagementOperationObserver();
 
   WMIObserver.Completed += new System.Management.CompletedEventHandler(Completed);
   WMIObserver.Progress += new System.Management.ProgressEventHandler(Progress);
                                         
   Product.InvokeMethod(WMIObserver, "Uninstall", null);                        

   …
}

[AkbarAzizi]

and if you need to see some other related functions:

private ManagementObject GetProduct(string Name)
{
   SelectQuery allProductsQuery = new SelectQuery("Win32_Product");
   ManagementObjectSearcher allProducts =
            new ManagementObjectSearcher(allProductsQuery);
 
   foreach (ManagementObject product in allProducts.Get())
   {
      foreach (PropertyData property in product.Properties)
      {
         if (property.Name == "Name" &&
             property.Value != null &&                   
             property.Value.ToString().Contains(Name))
         {
             return product;
          }
       }
    }
 
    return null;
}

private string MakeUninstallString(ManagementObject product)
{
   StringBuilder UninstallString = new StringBuilder();
 
   UninstallString.Append("Win32_Product.");
 
   foreach (PropertyData property in product.Properties)
   {
      if (property.Name == "IdentifyingNumber")
      {
         UninstallString.Append(@"IdentifyingNumber=" + "\"");
         UninstallString.Append(property.Value.ToString());
         UninstallString.Append("\"");
      }
      else if (property.Name == "Name")
      {
         UninstallString.Append(@",Name=" + "\"");
         UninstallString.Append(property.Value.ToString());
         UninstallString.Append("\"");
      }
      else if (property.Name == "Version")
      {
         UninstallString.Append(@",Version=" + "\"");
         UninstallString.Append(property.Value.ToString());
         UninstallString.Append("\"");
      }
}

.......
.......

ManagementObject Product = GetProduct(ProductName);

string UninstallString = MakeUninstallString(Product);

Res = Uninstall(UninstallString);

[tlhintoq]

TIP: When you are writing your question, there is a button on the tool bar that wraps the [code] tags around your copy/pasted code. It helps a bunch. Its the button with a '#' on it. More on tags. They're cool. Check'em out.

[AkbarAzizi]

Aha... that is cool. Thank you!