{"version":"1.0","provider_name":"Xceed","provider_url":"https:\/\/xceed.com\/fr","author_name":"Christopher Radford","author_url":"https:\/\/xceed.com\/fr\/blog\/author\/radfordc\/","title":"Async Virtualization That Actually Feels Instant - Xceed","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"KIDJ3410I2\"><a href=\"https:\/\/xceed.com\/fr\/blog\/all\/async-virtualization-that-actually-feels-instant\/\">Async Virtualization That Actually Feels Instant<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/xceed.com\/fr\/blog\/all\/async-virtualization-that-actually-feels-instant\/embed\/#?secret=KIDJ3410I2\" width=\"600\" height=\"338\" title=\"&laquo; Async Virtualization That Actually Feels Instant &raquo; &#8212; Xceed\" data-secret=\"KIDJ3410I2\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/xceed.com\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>","thumbnail_url":"https:\/\/xceed.com\/wp-content\/uploads\/2025\/09\/unnamed-file.png","thumbnail_width":1280,"thumbnail_height":720,"description":"WPF DataGrid speed hinges on fetch and render. Use async data virtualization to free the UI thread and row recycling to cut visual churn. In .NET 8 with 1,000,000 rows, we saw smooth fast scroll, ~60 FPS, sub-50 ms input, and bounded memory via windowed paging. Turn on virtualization\/recycling, fetch off-UI, keep templates light, and verify with ETW\/WPA. Smoothness wins."}