Properties
- CloseImageUrl - The path to a custom close image
- CssClass - Name of the CSS class used to style ValidatorCallout
- HighlightCssClass - A CSS class to apply to an invalid field
- OnHide - Generic OnHide animation for the ValidatorCallout extender
- OnShow - Generic OnShow animation for the ValidatorCallout extender
- PopupPosition - Indicates where the ValidatorCallout popup should appear relatively to the control to validate
- WarningIconImageUrl - The path to a custom warning icon image
- Width - The width of the callout