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Using Imaging SDK for C#.NET
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How to C#: Set Image Thumbnail in C#.NET


To Preview Images in WinForm Application



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Overview



With XImage.Raster SDK library, you can create an image viewer and view image on WinForm application conveniently.




Thumbnail View Settings



When you preview an image, you can view the image by different properties. What you can set are supported as follows.


Thumbnail item


  Item Width


  Item Height


  Horizontal Margin


  Vertical Margin


  Item Border Width


  Back Color


  Selected Color


  Margin Color


  Border Color


Descriptor


  Horizontal Alignment


  Vertical Alignment


  Descriptor Mode


  Font Color


  Back Color


  Selected Font Color


  Selected Back Color


Scrollbar Direction


       The valid value is Vertical and Horizontal.




Create a C# WinForm Application



By following steps below, you can create an image viewer WinForm Application.


Open or create a new WinForms application, add necessary dll library to the projects reference.


  RasterEdge.XImage.Raster.WinFormsControl.dll


Add a new Form Item to the project, and choose to design mode sign. Make the ToolBox view show.


Right click the ToolBox panel, and select Choose Items…”, in the .NET Framework Components tab of pop-up dialog, click Browse…”button to navigate the RasterEdge.XImage.Raster.WinFormsControl.dll, and make sure the ImageViewand ThumbnailViewis checked.


Now the RasterEdge image view control appears in the ToolBox. Just drag and drop the ImageViewand ThumbnailViewitems to your new Form control.


To make the ThumbnailView connect to the ImageView, add the following code to the Form Initialize method.


If you dont want to code yourself, you can also use our Image Viewer Demo. Please try the “RasterEdge.Demo.XImage.Raster.exe” in the download package.


Sample Code (winformcontrol demo code)




public Form1()
{
     InitializeComponent();
     WorkRegistry.Reset();
     this.thumbnailView1.ThumbImageIndexChanged += new RasterEdge.XImage.Raster.WinFormsControl.ThumbImageIndexChangedEventHandler(thumbnailView1_ThumbImageIndexChanged);
     this.thumbnailView1.OpenImage("sample.jpeg");
}
void  thumbnailView1_ThumbImageIndexChanged(object sender,  RasterEdge.XImage.Raster.WinFormsControl.ThumbImageIndexChangedEventArgs e)
 {
     ThumbnailItem item = e.ThumbItem;
     this.imageView1.ShowImage(item, false);
 }