How to programmatically modify assemblyBinding in app.config?
I found what I needed. The XmlNamespaceManager is required as the assemblyBinding node contains the xmlns attribute. I modified the code to use this and it works:
private void SetRuntimeBinding(string path, string value)
{
XmlDocument doc = new XmlDocument();
try
{
doc.Load(Path.Combine(path, "MyApp.exe.config"));
}
catch (FileNotFoundException)
{
return;
}
XmlNamespaceManager manager = new XmlNamespaceManager(doc.NameTable);
manager.AddNamespace("bindings", "urn:schemas-microsoft-com:asm.v1");
XmlNode root = doc.DocumentElement;
XmlNode node = root.SelectSingleNode("//bindings:bindingRedirect", manager);
if (node == null)
{
throw (new Exception("Invalid Configuration File"));
}
node = node.SelectSingleNode("@newVersion");
if (node == null)
{
throw (new Exception("Invalid Configuration File"));
}
node.Value = value;
doc.Save(Path.Combine(path, "MyApp.exe.config"));
}
Sounds like you've got your configuration file tweak working now, but I thought you might still be interested in how to adjust binding redirects at run time. The key is to use the AppDomain.AssemblyResolve event, and the details are in this answer. I prefer it over using the configuration file, because my version number comparison can be a bit more sophisticated and I don't have to tweak the configuration file during every build.