protected void convertToImageButton_Click(object sender, EventArgs e)
{
// Create a HTML to Image converter object with default settings
HtmlToImageConverter htmlToImageConverter = new HtmlToImageConverter();
// Set license key received after purchase to use the converter in licensed mode
// Leave it not set to use the converter in demo mode
htmlToImageConverter.LicenseKey = "4W9+bn19bn5ue2B+bn1/YH98YHd3d3c=";
// Set HTML Viewer width in pixels which is the equivalent in converter of the browser window width
htmlToImageConverter.HtmlViewerWidth = int.Parse(htmlViewerWidthTextBox.Text);
// Set HTML viewer height in pixels to convert the top part of a HTML page
// Leave it not set to convert the entire HTML
if (htmlViewerHeightTextBox.Text.Length > 0)
{
htmlToImageConverter.HtmlViewerHeight = int.Parse(htmlViewerHeightTextBox.Text);
}
// Set if the created image has a transparent background
htmlToImageConverter.TransparentBackground = SelectedImageFormat() == System.Drawing.Imaging.ImageFormat.Png ? transparentBackgroundCheckBox.Checked : false;
// Set the maximum time in seconds to wait for HTML page to be loaded
// Leave it not set for a default 60 seconds maximum wait time
htmlToImageConverter.NavigationTimeout = int.Parse(navigationTimeoutTextBox.Text);
// Set an adddional delay in seconds to wait for JavaScript or AJAX calls after page load completed
// Set this property to 0 if you don't need to wait for such asynchcronous operations to finish
if (conversionDelayTextBox.Text.Length > 0)
{
htmlToImageConverter.ConversionDelay = int.Parse(conversionDelayTextBox.Text);
}
System.Drawing.Image[] imageTiles = null;
if (convertUrlRadioButton.Checked)
{
string url = urlTextBox.Text;
// Convert the HTML page given by an URL to a set of Image objects
imageTiles = htmlToImageConverter.ConvertUrlToImageTiles(url);
}
else
{
string htmlString = htmlStringTextBox.Text;
string baseUrl = baseUrlTextBox.Text;
// Convert a HTML string with a base URL to a set of Image objects
imageTiles = htmlToImageConverter.ConvertHtmlToImageTiles(htmlString, baseUrl);
}
// Save the first image tile to a memory buffer
System.Drawing.Image outImage = imageTiles[0];
// Create a memory stream where to save the image
System.IO.MemoryStream imageOutputStream = new System.IO.MemoryStream();
// Save the image to memory stream
outImage.Save(imageOutputStream, SelectedImageFormat());
// Write the memory stream to a memory buffer
imageOutputStream.Position = 0;
byte[] outImageBuffer = imageOutputStream.ToArray();
// Close the output memory stream
imageOutputStream.Close();
// Send the image as response to browser
string imageFormatName = imageFormatComboBox.SelectedValue.ToLower();
// Set response content type
Response.AddHeader("Content-Type", "image/" + (imageFormatName == "jpg" ? "jpeg" : imageFormatName));
// Instruct the browser to open the image file as an attachment or inline
Response.AddHeader("Content-Disposition", String.Format("attachment; filename={0}; size={1}", "HTML_to_Image." + imageFormatName, outImageBuffer.Length.ToString()));
// Write the image buffer to HTTP response
Response.BinaryWrite(outImageBuffer);
// End the HTTP response and stop the current page processing
Response.End();
}
public ActionResult ConvertHtmlToImage(IFormCollection collection)
{
// Create a HTML to Image converter object with default settings
HtmlToImageConverter htmlToImageConverter = new HtmlToImageConverter();
// Set license key received after purchase to use the converter in licensed mode
// Leave it not set to use the converter in demo mode
htmlToImageConverter.LicenseKey = "4W9+bn19bn5ue2B+bn1/YH98YHd3d3c=";
// Set HTML Viewer width in pixels which is the equivalent in converter of the browser window width
htmlToImageConverter.HtmlViewerWidth = int.Parse(collection["htmlViewerWidthTextBox"]);
// Set HTML viewer height in pixels to convert the top part of a HTML page
// Leave it not set to convert the entire HTML
if (collection["htmlViewerHeightTextBox"][0].Length > 0)
{
htmlToImageConverter.HtmlViewerHeight = int.Parse(collection["htmlViewerHeightTextBox"]);
}
// Set if the created image has a transparent background
htmlToImageConverter.TransparentBackground = SelectedImageFormat(collection["imageFormatComboBox"]) == System.Drawing.Imaging.ImageFormat.Png ? collection["transparentBackgroundCheckBox"].Count > 0 : false;
// Set the maximum time in seconds to wait for HTML page to be loaded
// Leave it not set for a default 60 seconds maximum wait time
htmlToImageConverter.NavigationTimeout = int.Parse(collection["navigationTimeoutTextBox"]);
// Set an adddional delay in seconds to wait for JavaScript or AJAX calls after page load completed
// Set this property to 0 if you don't need to wait for such asynchcronous operations to finish
if (collection["conversionDelayTextBox"][0].Length > 0)
{
htmlToImageConverter.ConversionDelay = int.Parse(collection["conversionDelayTextBox"]);
}
System.Drawing.Image[] imageTiles = null;
if (collection["HtmlPageSource"] == "convertUrlRadioButton")
{
string url = collection["urlTextBox"];
// Convert the HTML page given by an URL to a set of Image objects
imageTiles = htmlToImageConverter.ConvertUrlToImageTiles(url);
}
else
{
string htmlString = collection["htmlStringTextBox"];
string baseUrl = collection["baseUrlTextBox"];
// Convert a HTML string with a base URL to a set of Image objects
imageTiles = htmlToImageConverter.ConvertHtmlToImageTiles(htmlString, baseUrl);
}
// Save the first image tile to a memory buffer
System.Drawing.Image outImage = imageTiles[0];
// Create a memory stream where to save the image
System.IO.MemoryStream imageOutputStream = new System.IO.MemoryStream();
// Save the image to memory stream
outImage.Save(imageOutputStream, SelectedImageFormat(collection["imageFormatComboBox"]));
// Write the memory stream to a memory buffer
imageOutputStream.Position = 0;
byte[] outImageBuffer = imageOutputStream.ToArray();
// Close the output memory stream
imageOutputStream.Close();
string imageFormatName = collection["imageFormatComboBox"][0].ToLower();
// Send the image file to browser
FileResult fileResult = new FileContentResult(outImageBuffer, "image/" + (imageFormatName == "jpg" ? "jpeg" : imageFormatName));
fileResult.FileDownloadName = "HTML_to_Image." + imageFormatName;
return(fileResult);
}
