Gets or sets the 0-based index of the currently visible page. If several pages are visible, this property indicates the page with the most surface shown. When the property is set, the new start page's top left corner is aligned with the preview window's top left corner.

'宣言
 
Public Property StartPageIdx As System.Integer

'使用法
 
Dim instance As C1PreviewPane
Dim value As System.Integer
 
instance.StartPageIdx = value
 
value = instance.StartPageIdx

public System.int StartPageIdx {get; set;}