我创建了 html 代码,然后将此 html 页面保存为图像。html
我创建的控件在带有所有图像和背景颜色的图像中正确显示。它在 localhost 上运行良好。
但我正在尝试创建 html 代码以在服务器上成像。图像正在创建,但未显示 bgcolor、图像等任何内容。
只显示空白图像。
代码 :
从客户端使用 Ajax 调用函数我将 html 内容发送到服务器端
服务器端方法
[System.Web.Services.WebMethod()]
public static void GenerateTemplateImage(string html_Content, string TemplateName)
{
var t = new Thread(MakeScreenshot);
t.SetApartmentState(ApartmentState.STA);
t.Start();
}
public static void MakeScreenshot()
{
Bitmap bitmap;
string html = string.Empty;
string Title = string.Empty;
string Meta = string.Empty;
string Style = string.Empty;
string ScriptBefore = string.Empty;
string ScriptAfter = string.Empty;
string Scripthead = string.Empty;
html="<div><div id='s_p_box-1' style='background-color: rgb(24, 0, 238); width: 109px; height: 75px;>Welcome </div>' <br/> <img id='template1' class='template' style='border:1px solid green; height:142px;width:116px' src='http://ace.demos.classicinformatics.com/Advertiser-Admin/Campaign/UserTemplate/template1.jpg'></div>";
WebBrowser wb = new WebBrowser();
wb.Navigate("about:blank");
if (wb.Document != null)
{
wb.Document.Write(html);
}
wb.DocumentText = html;
wb.ScrollBarsEnabled = false;
wb.ScriptErrorsSuppressed = true;
// Set the size of the WebBrowser control
// Take Screenshot of the web pages full width
// wb.Width = wb.Document.Body.ScrollRectangle.Width;
wb.Width = 1024;
// Take Screenshot of the web pages full height
// wb.Height = wb.Document.Body.ScrollRectangle.Height;
//wb.Height = 786;
wb.ScrollBarsEnabled = true;
if (wb.Height <= 0)
{
wb.Height = 1024;
}
//if (wb.Width <= 400)
//{
// wb.Width = 700;
//}
// Get a Bitmap representation of the webpage as it's rendered in the WebBrowser control
//Bitmap bitmap = new Bitmap(wb.Width, wb.Height);
//using (bitmap = new Bitmap(wb.Width, wb.Height))
using (bitmap = new Bitmap(wb.Width, wb.Height))
{
//wb.DrawToBitmap(bitmap, new Rectangle(0, 0, wb.Width, wb.Height));
wb.DrawToBitmap(bitmap, new Rectangle(0, 0, wb.Width, wb.Height));
//string imgPath = HttpContext.Current.Server.MapPath(System.Configuration.ConfigurationManager.AppSettings["ImgPath"].ToString());
//string imgPath="C:\\Projects\\aec\\Ace-A-Metric\\Advertiser-Admin\\Campaign\\UserTemplate\\";
string imgPath = URlPath + "test123" + ".bmp";
//bitmap.Save(@"D:\" + txtTempName.Text + ".bmp", System.Drawing.Imaging.ImageFormat.Bmp);
bitmap.Save(imgPath, System.Drawing.Imaging.ImageFormat.Bmp);
//string imgpath = Path.Combine(HttpContext.Current.Server.MapPath("~") + "Advertiser-Admin\\Campaign\\UserTemplate\\" + txtTempName.Text +".bmp");
//bitmap.Save(imgpath, System.Drawing.Imaging.ImageFormat.Bmp);
}
wb.Dispose();
GC.Collect();
}