The RibbonBarButton has a few important properties, which are listed below:

• Text is the string that the user sees displayed on the RibbonBarButton.

• Tooltip is a string that appears in the tooltip window when the user hovers the mouse over the RibbonBarButton.

• Size determines the size of the RibbonBarButton.

  Use the Size property to specify the item's initial size:

  - For small icon - RibbonBarItemSize.Small

  - For small icon with text - RibbonBarItemSize.Medium

  - For large icon with text - RibbonBarItemSize.Large.

• ImageAltText specifies the alternate text of the image.

• ImageUrlLarge specifies a custom image that will be used when the item has Size = RibbonBarItemSize.Large.

• ImageUrl specifies a custom image that will be used when the item has Size = RibbonBarItemSize.Small or RibbonBarItemSize.Medium.

• ImageRenderingMode determines the rendering mode of the image.

  In case ImageRenderingMode is not explicitly set (meaning RibbonBar's ImageRenderingMode is Auto), it's considered as follows:

  - If ImageUrl is set and ImageUrlLarge is not set - the mode is Clip;

  - Any other case - Dual.

• CssClass is the name of a CSS style to be applied to the RibbonBarButton. The style can be declared in the CSS file of the applied skin.