public void RemoveUserDefinedViewer(
FilePath fileName,
string mimeType,
UserDefinedOpenWithFileViewer fileViewer)
{
List <UserDefinedOpenWithFileViewer> existingFileViewers =
GetUserDefinedFileViewers(fileName, mimeType);
var key = GetKey(fileName, mimeType);
existingFileViewers.Remove(fileViewer);
if (!existingFileViewers.Any())
{
userDefinedFileViewers.Remove(key);
}
DisplayBindingService.DeregisterRuntimeDisplayBinding(fileViewer.DisplayBinding);
}
public void ClearDefault(FilePath fileName, string mimeType)
{
var key = GetKey(fileName, mimeType);
mappings.Remove(key);
IDisplayBinding displayBinding = null;
if (defaultDisplayBindings.TryGetValue(key, out displayBinding))
{
var userDefinedViewer = GetUserDefinedFileViewer(fileName, mimeType, displayBinding);
if (userDefinedViewer != null)
{
userDefinedViewer.ClearAsDefault();
}
else
{
DisplayBindingService.DeregisterRuntimeDisplayBinding(displayBinding);
}
defaultDisplayBindings.Remove(key);
}
}
