如何防止telerik radchart生成onerror属性?

onerror只在调试配置中显示。一旦在release中部署应用程序,属性就不会被呈现!

您可以这样做,只需将其添加到页面底部,或者在某个加载事件中调用removeornerror。

function removeOnError(){
    //Grab all images
    var imgs = document.getElementsByTagName('img');
    for(var i=0;i<imgs.length;i++){
        //If they've got the onerror attribute
        if(imgs[i].onerror){
            //set it to null
            imgs[i].onerror = null;
        }
    }
}
//Call the function above
removeOnError();

编辑

查看Telerik的站点,它似乎不是一个选项,因此我唯一能想到的方法是覆盖页面的呈现事件并手动将其删除:

protected override void Render(HtmlTextWriter writer)
{
    using (System.IO.MemoryStream MS = new System.IO.MemoryStream())
    {
        using (System.IO.StreamWriter SW = new System.IO.StreamWriter(MS))
        {
            HtmlTextWriter NW = new HtmlTextWriter(SW);
            base.Render(NW);
            NW.Flush();
            MS.Position = 0;
            using (System.IO.StreamReader SR = new System.IO.StreamReader(MS))
            {
                string html = SR.ReadToEnd();
                MatchCollection MC = Regex.Matches(html, "<img.*?(?<OnError>onerror=\".*?\").*?>");
                foreach (Match M in MC)
                {
                    if (M.Success)
                    {
                        html = html.Replace(M.Groups["OnError"].Value, "");
                    }
                }
                Response.Write(html);
                SR.Close();
            }
        }
    }
} 

Telerik控件检查属性

HttpContext.Current.IsDebuggingEnabled

决定是否生成onerror属性。因此要删除这些块,请确保在web.config的“compilation”节点中关闭调试

<compilation debug="false">