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OpenImageUrl(string,int) Method

Summary

Opens the image from an URL or a virtual path and displays it.

Syntax

C#
VB
C++
public void OpenImageUrl( 
   string imageUrl, 
   int pageIndex 
) 
  
Public Overloads Sub OpenImageUrl( _ 
   ByVal imageUrl As String, _ 
   ByVal pageIndex As Integer _ 
)  
public: 
void OpenImageUrl(  
   String^ imageUrl, 
   int pageIndex 
)

Parameters

imageUrl
The URL or virtual directory of the image being loaded.

pageIndex
0-based index of the page to open.

Remarks

If the imageUrl refers to an URL, the control will download the first page (index 0) to the CacheFolder and display it. Accessing the ImageInfo property returns the name of the cached image for this URL.

Example

This example initializes the WebImageViewer control and load the third page of "multipage.tif", also it initializes the WebImagePanViewer control.

C#
VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Web.Controls; 
using Leadtools.ImageProcessing; 
 
public void WebImageViewer_OpenImageUrl() 
{ 
   WebImageViewer mainWebImageViewer = new WebImageViewer(); 
   WebImagePanViewer webImagePanViewer = new WebImagePanViewer(); 
   mainWebImageViewer.InteractiveZoomPercent = 15; 
   mainWebImageViewer.MouseInteractiveMode.LeftButton = ImageViewerMouseInteractiveMode.ZoomIn; 
   mainWebImageViewer.MouseInteractiveMode.RightButton = ImageViewerMouseInteractiveMode.ZoomOut; 
   mainWebImageViewer.ScaleFactor = 1.5; 
   mainWebImageViewer.TileSize = new Size(450, 450); 
   // Prevent the Internet Explorer from loading the viewer images in the Temporary Internet Folder. 
   mainWebImageViewer.DisableBrowserCaching = true; 
   mainWebImageViewer.OpenImageUrl(@"Resources\multipage.tif", 1); 
 
   webImagePanViewer.HorizontalAlignMode = ImageViewerAlignMode.Center; 
   webImagePanViewer.VerticalAlignMode = ImageViewerAlignMode.Center; 
   webImagePanViewer.RectangleColor = Color.Blue; 
   // Prevent the Internet Explorer from loading the PanViewer images in the Temporary Internet Folder. 
   webImagePanViewer.DisableBrowserCaching = true; 
   webImagePanViewer.ViewerID = mainWebImageViewer.ClientID; 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing 
Imports Leadtools.Web.Controls 
   ''' <!--Leadtools.Web.Controls.WebImageViewer.ImageUrl--> 
   ''' <!--Leadtools.Web.Controls.WebImageViewer.ImageUrl--> 
   ''' <!--Leadtools.Web.Controls.WebImageViewer.OpenImageUrl--> 
   ''' <!--Leadtools.Web.Controls.WebImageViewer.OpenImageUrl--> 
   ''' <!--Leadtools.Web.Controls.WebImageViewer.ScrollBarVisible--> 
   ''' <!--Leadtools.Web.Controls.WebImageViewer.ScrollBarVisible--> 
   ''' <!--Leadtools.Web.Controls.WebImageViewer.ApplyCommand--> 
   ''' <!--Leadtools.Web.Controls.WebImageViewer.ApplyCommand--> 
   ''' <!--Leadtools.Web.Controls.WebImageViewer.PropertyChanged--> 
   ''' <!--Leadtools.Web.Controls.WebImageViewer.PropertyChanged--> 
   ''' <!--Leadtools.Web.Controls.WebThumbnailViewer.AddWithText--> 
   ''' <!--Leadtools.Web.Controls.WebThumbnailViewer.AddWithText--> 
   ''' <!--Leadtools.Web.Controls.WebThumbnailViewer.InsertWithText--> 
   ''' <!--Leadtools.Web.Controls.WebThumbnailViewer.InsertWithText--> 
   ''' <!--Leadtools.Web.Controls.WebThumbnailViewer.EnsureVisible--> 
   ''' <!--Leadtools.Web.Controls.WebThumbnailViewer.EnsureVisible--> 
   ''' <!--Leadtools.Web.Controls.WebThumbnailViewer.GetThumbnailImageByText--> 
   ''' <!--Leadtools.Web.Controls.WebThumbnailViewer.GetThumbnailImageByText--> 
   ''' <!--Leadtools.Web.Controls.WebThumbnailViewer.SetThumbnailText--> 
   ''' <!--Leadtools.Web.Controls.WebThumbnailViewer.SetThumbnailText--> 
 
Public Sub WebImageViewer_OpenImageUrl() 
 
   Dim webImagePanViewer As WebImagePanViewer = New WebImagePanViewer() 
   Dim mainWebImageViewer As WebImageViewer = New WebImageViewer() 
   mainWebImageViewer.InteractiveZoomPercent = 15 
   mainWebImageViewer.MouseInteractiveMode.LeftButton = ImageViewerMouseInteractiveMode.ZoomIn 
   mainWebImageViewer.MouseInteractiveMode.RightButton = ImageViewerMouseInteractiveMode.ZoomOut 
   mainWebImageViewer.ScaleFactor = 1.5 
   mainWebImageViewer.TileSize = New Size(450, 450) 
   ' Prevent the Internet Explorer from loading the viewer images in the Temporary Internet Folder. 
   mainWebImageViewer.DisableBrowserCaching = True 
   mainWebImageViewer.OpenImageUrl("Resources\multipage.tif", 1) 
 
   webImagePanViewer.HorizontalAlignMode = ImageViewerAlignMode.Center 
   webImagePanViewer.VerticalAlignMode = ImageViewerAlignMode.Center 
   webImagePanViewer.RectangleColor = Color.Blue 
   ' Prevent the Internet Explorer from loading the PanViewer images in the Temporary Internet Folder. 
   webImagePanViewer.DisableBrowserCaching = True 
   webImagePanViewer.ViewerID = mainWebImageViewer.ClientID 
End Sub

Requirements

Target Platforms

Help Version 19.0.2017.10.27
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Leadtools.Web Assembly
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Leadtools.Web.Controls Namespace
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Assemblies