Tested some concepts for an advanced numeric input control, and also for a slider supporting double values. This was only a test, so use it and change it if you find it useful for your tasks. Note: you might need to rebuild the solution after cloning, if you cannot open the designer files.

Features for both UserControls:

• User inputs validated via both events lost focus and Enter key up
• Programmatic value setting
• Settable validation background color during edit mode
• Range limit min/max
• Optionally coerce or ignore out of range inputs
• Capture and ignore wrong inputs
• Set or hide tooltip
• Standard NumberFormatSpecifier option (default is "G")
• Controls on UI are resizable in design time (AdvancedSlider has only slider resize option)
• EnterKeyUpCustom, FocusLostCustom, InvalidInput, OutOfRange, ValueChangedFinal (not including slider scroll intermediate values), ValueChanged (including slider scroll events too) events

AdvancedSlider:

• Handles double values. TrackBar range is now fixed to 0-1000 (SliderResolution), so the slider double resolution is (Max-min)/1000. You can change this if needed.
• Set label text
• Set SmallChange/LargeChange for slider

Some usage examples in the project:

{ InitializeComponent(); //advancedNumericBox1.NumberFormatSpecifier = "E3"; advancedNumericBox1.EnterKeyUpCustom += AdvancedNumericBox1_EnterKeyUpCustom; advancedNumericBox1.FocusLostCustom += AdvancedNumericBox1_FocusLostCustom; advancedNumericBox1.InvalidInput += AdvancedNumericBox1_InvalidInputOccured; advancedNumericBox1.OutOfRange += AdvancedNumericBox1_OutOfRange; advancedNumericBox1.SetMinimum(-100); advancedNumericBox1.SetMaximum(500); advancedNumericBox1.EnableToolTip($"Min: -100\r\nMax: 500\r\nOut of range will be coerced."); advancedNumericBox1.SetValue(100); advancedNumericBox1.CoerceOutOfRange = true; advancedSlider1.EnterKeyUpCustom += AdvancedNumericBox1_EnterKeyUpCustom; advancedSlider1.FocusLostCustom += AdvancedNumericBox1_FocusLostCustom; advancedSlider1.InvalidInput += AdvancedNumericBox1_InvalidInputOccured; advancedSlider1.OutOfRange += AdvancedNumericBox1_OutOfRange; advancedSlider1.SetLabel("parameter:"); advancedSlider1.SetMinimum(-300); advancedSlider1.SetMaximum(500); advancedSlider1.EnableToolTip($"Min: -300\r\nMax: 500\r\nOut of range will be coerced."); advancedSlider1.SetValue(100); advancedSlider1.CoerceOutOfRange = true; }