GridViewImageColumn - Blurred

[NoRyb]

Hello

I'm showing an icon for every item in my RadGridView. For this, I create a GridViewImageColumn the following way:

GridViewImageColumn imgCol = new GridViewImageColumn();
imgCol.ImageStretch = System.Windows.Media.Stretch.None;
imgCol.ImageWidth = 16;
imgCol.ImageHeight = 16;
imgCol.DataMemberBinding = binding;

The icon is 16x16px and it's set to not stretched - still it's blurry. Now I know that this probably is not a Telerik problem because this also happens in other WPF situations. But I was trying to find something like the "SnapPixelsToDevice" or "RenderOptions.SetBitmapScalingMode" property/method.

Is there any way I can make the images look better? The Telerik-TreeView seems to work perfectly without setting any property and it uses the same images.

Thanks

[Tsvyatko]

Hi NoRyb,

In order to enhance the display quality of the images I can suggest to inherit the Image column and apply options on the created images. The code could look like this:

public  class GridViewClearImageColumn:GridViewImageColumn
{
    public override System.Windows.FrameworkElement CreateCellElement(Telerik.Windows.Controls.GridView.GridViewCell cell, object dataItem)
    {
        var item = base.CreateCellElement(cell, dataItem);

        var image = item as Image;

        if (image != null)
        {
            image.SnapsToDevicePixels = true;
            RenderOptions.SetBitmapScalingMode(image, BitmapScalingMode.NearestNeighbor);
            item = image;
        }

        return item;
    }
}

I have also attached sample demonstrating the idea. If this does not help you can suggest to set the stretch mode of the image to none:

image.Stretch = Stretch.None;

Regards,

Tsvyatko

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[NoRyb]

Great. That worked! Thank you very much.

Best Regards