在特定的html \ asp.net \ telerik控件中加載位圖對象

Question

我有一個位圖對象在代碼後面動態生成，我想加載到我的aspx頁面中的某個控件。由於我的應用程序的結構，我寧願不使用Ihttphandler。

這裏是我的代碼示例：

WebsitesScreenshot.WebsitesScreenshot ScreenShot = new WebsitesScreenshot.WebsitesScreenshot("NHJ99Q0QTGNG66UUVAGDL4Y1Q"); 
     WebsitesScreenshot.WebsitesScreenshot.Result Result; 
     Result = ScreenShot.CaptureHTML(HTML); 
     if (Result == WebsitesScreenshot.WebsitesScreenshot.Result.Captured) 
     { 
      ScreenShot.ImageWidth = 250; 
      ScreenShot.ImageHeight = 300; 
      Bitmap pic = ScreenShot.GetImage(); 
      MemoryStream ms = new MemoryStream(); 
      pic.Save(ms, ImageFormat.Jpeg); 
      //what do I do here ? 
     } 

感謝。

Answer 1

這也正是RadBinaryImage控制是專門用來處理。它會把你的byte []數組直接輸出到客戶端。如果你願意，它甚至可以做客戶端緩存。下面是一個演示：http://demos.telerik.com/aspnet-ajax/binaryimage/examples/overview/defaultcs.aspx

更多信息和相關文檔：http://www.telerik.com/help/aspnet-ajax/radbinaryimage.html

Answer 2

好吧發現：

htmlImg.DataValue = WriteBitmapIntoStream(pic); 



private static byte[] WriteBitmapIntoStream(Bitmap bitmap) 
{ 
    MemoryStream stream = new MemoryStream(); 
    bitmap.Save(stream, ImageFormat.Jpeg); 
    stream.Position = 0; 
    var data = new byte[stream.Length]; 
    stream.Read(data, 0, data.Length); 
    return data; 
}