invalidateItem Method

Summary

Invalidate an item.

Syntax
TypeScript
JavaScript
ImageViewer.prototype.invalidateItem = function( 
   item 
) 
invalidateItem( 
   item: ImageViewerItem 
): void; 

Parameters

item

The item to invalidate. This parameter cannot be null.

Remarks

Calling this method will cause the viewer to re-render the item. This is performed internally by passing the value obtained the value of GetItemViewBounds for the item and if it is not empty, passing to Invalidate.

For more information, refer to Image Viewer Rendering.

Requirements

Target Platforms

Help Version 22.0.2021.9.24
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Leadtools.Controls Assembly
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© 1991-2021 LEAD Technologies, Inc. All Rights Reserved.