public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
{
var service = provider.GetService
(typeof(System.Windows.Forms.Design.IWindowsFormsEditorService))
as System.Windows.Forms.Design.IWindowsFormsEditorService;
DoubleSlideParametersAttribute att = (DoubleSlideParametersAttribute)context.PropertyDescriptor.Attributes[typeof(DoubleSlideParametersAttribute)];
DoubleTrackBar track = new DoubleTrackBar();
track.Precision = att.Precision;
track.Maximum = att.SliderMax;
track.Minimum = att.SliderMin;
track.Width = 127;
track.Height = 15;
double freq = track.Maximum / 50d;
if (freq < 1)
{
freq = 1;
}
track.TickFrequency = (int)freq;
if (double.TryParse(context.PropertyDescriptor.Converter.ConvertToString(value), out double result))
{
track.Value = result;
}
if (att.SliderDynamicSetValue)
{
track.Tag = context;
}
track.ValueChanged += Track_ValueChanged;
service.DropDownControl(track);
if (valueChanged)
{
return(context.PropertyDescriptor.Converter.ConvertFromString(track.Value.ToString()));
}
else
{
return(value);
}
}
private void Track_ValueChanged(object sender, EventArgs e)
{
valueChanged = true;
DoubleTrackBar track = (DoubleTrackBar)sender;
toolTip.SetToolTip(track, track.Value.ToString());
ITypeDescriptorContext ctx = (ITypeDescriptorContext)track.Tag;
if (ctx != null)
{
var val = ctx.PropertyDescriptor.Converter.ConvertFromString(track.Value.ToString());
try
{
//InstrumentManager.ExclusiveLockObject.EnterWriteLock();
ctx.PropertyDescriptor.SetValue(ctx.Instance, val);
}
finally
{
//InstrumentManager.ExclusiveLockObject.ExitWriteLock();
}
}
}
