GetThumbnailText Method

C#
Visual Basic
Objective-C
Java
C++

public string GetThumbnailText( 
   int thumbIndex
)

'Declaration
 
Public Function GetThumbnailText( _
   ByVal thumbIndex As Integer _
) As String

'Usage
 
Dim instance As WebThumbnailViewer
Dim thumbIndex As Integer
Dim value As String
 
value = instance.GetThumbnailText(thumbIndex)

public:
String^ GetThumbnailText( 
   int thumbIndex
)

Parameters

thumbIndex: The 0-based index of the thumbnail element about which to obtain its text.

Return Value

The thumbnail element text.

This example get the image for the thumbnail element that have text same as targetThumbText.

C#
Visual Basic
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing
Imports Leadtools.Web.Controls

Public Function WebThumbnailViewer_GetThumbnailImageByText(ByVal webThumbnailViewer As WebThumbnailViewer, ByVal targetThumbText As String) As RasterImage
   Dim image As RasterImage = Nothing
   Dim thumbImageUrl As String = String.Empty
   Dim pageIndex As Integer = 0
   If webThumbnailViewer.Count > 1 Then
      Dim thumbInfo As ThumbnailInfo


      For i As Integer = 0 To webThumbnailViewer.Count Step 1
         Dim currentThumbText As String = webThumbnailViewer.GetThumbnailText(i)

         If currentThumbText = targetThumbText Then
            thumbInfo = webThumbnailViewer.GetThumbnailInfo(i)

            thumbImageUrl = thumbInfo.Url
            If thumbInfo.CacheFileName <> String.Empty Then
               thumbImageUrl = thumbInfo.CacheFileName
            End If

            pageIndex = thumbInfo.Page
            Exit For
         End If
      Next i

      If thumbImageUrl <> String.Empty Then
         Using codecs As RasterCodecs = New RasterCodecs()
            Dim filePath As String = webThumbnailViewer.Page.MapPath(thumbImageUrl)

            image = codecs.Load(filePath, 0, CodecsLoadByteOrder.BgrOrGray, pageIndex, pageIndex)
         End Using
      End If
   End If
   Return image
End Function

using Leadtools;
using Leadtools.Codecs;
using Leadtools.Web.Controls;

public RasterImage WebThumbnailViewer_GetThumbnailImageByText(WebThumbnailViewer webThumbnailViewer, string targetThumbText)
{
   RasterImage image = null;
   string thumbImageUrl = string.Empty;
   int pageIndex = 0;
   if (webThumbnailViewer.Count > 1)
   {
      ThumbnailInfo thumbInfo;
      for (int i = 0; i < webThumbnailViewer.Count; i++)
      {
         string currentThumbText = webThumbnailViewer.GetThumbnailText(i);

         if (currentThumbText == targetThumbText)
         {
            thumbInfo = webThumbnailViewer.GetThumbnailInfo(i);

            thumbImageUrl = thumbInfo.Url;
            if (thumbInfo.CacheFileName != string.Empty)
               thumbImageUrl = thumbInfo.CacheFileName;

            pageIndex = thumbInfo.Page;
            break;
         }
      }

      if (thumbImageUrl != string.Empty)
      {
         using (RasterCodecs codecs = new RasterCodecs())
         {
            string filePath = webThumbnailViewer.Page.MapPath(thumbImageUrl);

            image = codecs.Load(filePath, 0, CodecsLoadByteOrder.BgrOrGray, pageIndex, pageIndex);
         }
      }
   }
   return image;
}

Target Platforms

Reference

WebThumbnailViewer Class
WebThumbnailViewer Members
WebThumbnailViewer Client Class