This property enables you to obtain an array that contains the spacing for each tab in the current text selection within the System.Windows.Forms.RichTextBox control. You can then use this property to adjust the size of each tab within the text selection. For example, if you want to adjust the tab space within the document, you can select the entire document and obtain the list of tab spaces using the RichTextBox.SelectionTabs property. You can then adjust them to new values and reassign them to this property.