將HTML表格內容更改爲圖像格式

Question

我想了解一下我的任務。我想將我的HTML表格內容代碼更改爲圖像格式。我確實有任何想法。任何一個可以請給我一個想法..

Answer 1

來源：Darin Dimitrov's Answer

你首先需要能夠處理HTML和 可選JavaScript和CSS（如果你想支持他們）一個渲染引擎。 使用WebBrowser控件可以完成，但可能有更好的方法 。

很少有其他的選擇還，請參考以下鏈接：
Html table (text) to image using C#
How to convert block of html to an image (e.g. jpg) in asp.net
Convert a HTML Control (Div or Table) to an image using C#
render HTML (convert to bitmap)

代碼片段：

public Bitmap GenerateScreenshot(string url) 
{ 
    // This method gets a screenshot of the webpage 
    // rendered at its full size (height and width) 
    return GenerateScreenshot(url, -1, -1); 
} 

public Bitmap GenerateScreenshot(string url, int width, int height) 
{ 
    // Load the webpage into a WebBrowser control 
    WebBrowser wb = new WebBrowser(); 
    wb.ScrollBarsEnabled = false; 
    wb.ScriptErrorsSuppressed = true; 
    wb.Navigate(url); 
    while (wb.ReadyState != WebBrowserReadyState.Complete) { Application.DoEvents(); } 


    // Set the size of the WebBrowser control 
    wb.Width = width; 
    wb.Height = height; 

    if (width == -1) 
    { 
     // Take Screenshot of the web pages full width 
     wb.Width = wb.Document.Body.ScrollRectangle.Width; 
    } 

    if (height == -1) 
    { 
     // Take Screenshot of the web pages full height 
     wb.Height = wb.Document.Body.ScrollRectangle.Height; 
    } 

    // Get a Bitmap representation of the webpage as it's rendered in the WebBrowser control 
    Bitmap bitmap = new Bitmap(wb.Width, wb.Height); 
    wb.DrawToBitmap(bitmap, new Rectangle(0, 0, wb.Width, wb.Height)); 
    wb.Dispose(); 

    return bitmap; 
}