UpdateUrl Method

Summary

Update the image or SVG URL of an item.

Syntax

C++

public void UpdateUrl( 
   ImageViewerItem item, 
   Uri url 
)

Public Sub UpdateUrl( 
   ByVal item As ImageViewerItem, 
   ByVal url As System.Uri 
)

public:  
   void UpdateUrl( 
      ImageViewerItem^ item, 
      System::Uri^ url 
   )

Parameters

item

Item to update

url

New image or SVG url. If this is null, then the item will be empty after this method returns.

The viewer will load the data in this URL as a raster image or SVG document depending on the value of LoadUrlAsSvg of item.

Remarks

This method lets you quickly update the ImageViewerItem.Url value. It is the equivalent of the following code:

ImageViewerItem item = imageViewer.Items[some index]; 
item.Url = url;

Example

using Leadtools; 
using Leadtools.Controls; 
using Leadtools.Codecs; 
using Leadtools.Drawing; 
using LeadtoolsExamples.Common; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Color; 
using Leadtools.Svg; 
 
var item = _imageViewer.GetLargestVisibleItem(ImageViewerItemPart.Content); 
if (item != null) 
{ 
   _imageViewer.Items.UpdateUrl(item, new Uri(@"http://localhost/myimages/multi/test.tif")); 
}

Imports Leadtools 
Imports Leadtools.Controls 
Imports Leadtools.Codecs 
Imports Leadtools.Drawing 
Imports Leadtools.ImageProcessing 
Imports Leadtools.ImageProcessing.Color 
Imports Leadtools.Svg 
 
Dim item As ImageViewerItem = _imageViewer.GetLargestVisibleItem(ImageViewerItemPart.Content) 
If Not item Is Nothing Then 
   _imageViewer.Items.UpdateUrl(item, New Uri("http://localhost/myimages/multi/test.tif")) 
End If

Requirements

Target Platforms

Reference

ImageViewerItems Class

ImageViewerItems Members

Leadtools.Controls Namespace

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Help Version 20.0.2020.4.3

Leadtools.Controls Assembly

Introduction

Getting Started

Namespaces

Leadtools.Controls Namespace

Assemblies