ScrollBarVisible Property
Summary
Enables or disables automatically showing the scroll bars if the image width or height exceeds the control client area.
Syntax
public bool ScrollBarVisible { get; set; }
Public Property ScrollBarVisible As Boolean
public:
property bool ScrollBarVisible {
bool get();
void set ( bool );
}
Property Value
true, automatically show the scroll bars; false, hide the scroll bars.
Example
This example disables the scrollbars, centers the image and uses the panning features in the left mouse button to scroll the image.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.Web.Controls;
using Leadtools.ImageProcessing;
public void WebImageViewer_ScrollBarVisible()
{
WebImageViewer mainWebImageViewer = new WebImageViewer();
mainWebImageViewer.ImageChanged += new EventHandler(mainWebImageViewer_ImageChanged);
mainWebImageViewer.MouseInteractiveMode.LeftButton = ImageViewerMouseInteractiveMode.Pan;
// disable the scrollbars
mainWebImageViewer.ScrollBarVisible = false;
// open "MultiPage.tif"
mainWebImageViewer.OpenImageUrl(@"Resources\MultiPage.tif");
// display the image with dpi
mainWebImageViewer.UseDpi = false;
// scroll the image to the center point.
mainWebImageViewer.ScrollPosition = new Point(mainWebImageViewer.MaxScrollPosition.X / 2, mainWebImageViewer.MaxScrollPosition.Y / 2);
mainWebImageViewer.ImageChanged -= new EventHandler(mainWebImageViewer_ImageChanged);
}
void mainWebImageViewer_ImageChanged(object sender, EventArgs e)
{
// "New Image is loaded"...
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing
Imports Leadtools.Web.Controls
Public Sub WebImageViewer_ScrollBarVisible()
Dim mainWebImageViewer As WebImageViewer = New WebImageViewer()
AddHandler mainWebImageViewer.ImageChanged, AddressOf mainWebImageViewer_ImageChanged
mainWebImageViewer.MouseInteractiveMode.LeftButton = ImageViewerMouseInteractiveMode.Pan
'' disable the scrollbars
mainWebImageViewer.ScrollBarVisible = False
'' open "image1.tif"
mainWebImageViewer.OpenImageUrl("Resources\MultiPage.tif")
'' display the image with dpi
mainWebImageViewer.UseDpi = False
'' scroll the image to the center point.
mainWebImageViewer.ScrollPosition = New Point(CType(mainWebImageViewer.MaxScrollPosition.X / 2, Integer), CType(mainWebImageViewer.MaxScrollPosition.Y / 2, Integer))
RemoveHandler mainWebImageViewer.ImageChanged, AddressOf mainWebImageViewer_ImageChanged
End Sub
Sub mainWebImageViewer_ImageChanged(ByVal sender As Object, ByVal e As EventArgs)
'' "New Image is loaded"...
End Sub
