GetThumbnailText Method

Visual Basic
C#
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.

Visual Basic
C#
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