Question

I have some html string that is coming from telerik radeditor, it may contain images tags with width and height. I want to remove those width and height properties.
How can I do this in code using regex or something else in asp.net?

Answer 1

There are a lot of mentions regarding not to use regex when parsing HTML, so you could use e.g. Html Agility Pack for this:

HtmlDocument document = new HtmlDocument();
document.LoadHtml(html);

var images = document.DocumentNode.SelectNodes("//img");
foreach (HtmlNode image in images)
{
    if (image.Attributes["width"] != null)
    {
        image.Attributes["width"].Remove();
    }
    if (image.Attributes["height"] != null)
    {
        image.Attributes["height"].Remove();
    }
}

this will remove width and height attribute from images in your html.