/// <summary>
/// ''' Select ASCOM driver to use including pre-selecting one in the drop-down list
/// ''' </summary>
/// ''' <param name="DriverProgID">Driver to preselect in the chooser dialogue</param>
/// ''' <returns>Driver ID of chosen driver</returns>
/// ''' <exception cref="Exceptions.InvalidValueException">Thrown if the Chooser.DeviceType property has not been set before Choose is called.
/// ''' It must be set in order for Chooser to know which list of devices to display.</exception>
/// ''' <remarks>The supplied driver will be pre-selected in the Chooser's list when the chooser window is first opened.
/// ''' </remarks>
public new string Choose(string DriverProgID)
{
string selectedProgId;
ChooserForm chooserFormInstance;
try
{
if (string.IsNullOrEmpty(deviceTypeValue))
{
throw new Exceptions.InvalidValueException("Unknown device type, DeviceType property has not been set");
}
chooserFormInstance = new ChooserForm(); // Initially hidden
chooserFormInstance.DeviceType = deviceTypeValue;
chooserFormInstance.SelectedProgId = DriverProgID;
chooserFormInstance.ShowDialog(); // Display MODAL Chooser dialogue
selectedProgId = chooserFormInstance.SelectedProgId;
chooserFormInstance.Dispose();
}
catch (DriverNotRegisteredException ex)
{
MsgBox("Chooser Exception: " + ex.Message);
LogEvent("Chooser", "Exception", EventLogEntryType.Error, EventLogErrors.ChooserException, ex.ToString);
selectedProgId = "";
}
catch (Exception ex)
{
Interaction.MsgBox("Chooser Exception: " + ex.ToString());
LogEvent("Chooser", "Exception", EventLogEntryType.Error, EventLogErrors.ChooserException, ex.ToString());
selectedProgId = "";
}
return(selectedProgId);
}
