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KretaWeb/Helpers/ImageExtensions.cs

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+using System.Web.Mvc;
+
+namespace Kreta.Web.Helpers
+{
+    public static class ImageExtensions
+    {
+        public static MvcHtmlString Base64EncodedImage(this HtmlHelper htmlHelper, string encodedImage, string alText = default(string))
+        {
+            var tagBuilder = new TagBuilder("img");
+
+            tagBuilder.Attributes.Add("class", $"rounded mx-auto d-block");
+            tagBuilder.Attributes.Add("src", $"{encodedImage}");
+
+            if (!string.IsNullOrWhiteSpace(alText))
+            {
+                tagBuilder.Attributes.Add("alt", alText);
+            }
+            return new MvcHtmlString(tagBuilder.ToString());
+        }
+    }
+}