I like to convert html for example a table to and image and save as jpg.(what I mean is that a table displayed on web page, I only want to get that specific table and save as image) Is it possible using asp.net?
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In 95% of cases, this HTML will be enclosed in <DIV> with a "size:auto".I have seen a few examples that contain the browser control but all of them need a width/height specification.Basically, what I am looking for is the ability to let my user make part of an HTML document and encapsulate that HTML in an image for later viewing.
View 3 Repliesin pageload
{
panelmain.Controls.Add(abc);
panelmain.Controls.Add(grid1);
string toexport;
toexport = RenderControl(panelmain);
ImageFormatConverter imgc = new ImageFormatConverter();
System.Drawing.Image convertedimage;
convertedimage = (System.Drawing.Image) imgc.ConvertFromString(toexport);
Response.ContentType = "image/jpg";
Response.AppendHeader("Content-Disposition", "inline;filename=tm.jpeg");
Response.BufferOutput = true;
Response.Charset = "utf-8";
Response.Write(convertedimage);
Response.End();
//form1.Controls.Add(abc);
}
public string RenderControl(Control ctrl)
{
StringBuilder sb = new StringBuilder();
StringWriter tw = new StringWriter(sb);
HtmlTextWriter hw = new HtmlTextWriter(tw);
ctrl.RenderControl(hw);
Response.Write(sb);
return sb.ToString();
}
The error is: ImageFormatConverter cannot convert from System.String.
I'm looking for a piece of code to convert an HTML file or code to an image file. I tried to do some search on google, I found a few but it only works on Windows application not web (asp.net).I'm basically trying to convert a formatted html page to an image at the server side.
View 2 RepliesIs there a way to use the firefox (or chrome or any other good browsers) rendering engine to convert html (as a text string) to an image?I have full access to the server I'm using, so no limitations there.
View 2 RepliesI'm new to ASP.net 3.5 and creating a test web site. I have created a master page for my web site with page content blocks. Now I want to use some javascript on the client side to provide for more interaction. I would normally create page specific Javascript functions and insert them in a <script block on the page. Howevere the Javascript script block must be placed before the <HTLM block. If I'm using Master Pages, it doesn't seem that I can use page specific Javascript functions. How can I resolve this problem? I think my options are
1) Don't use Javascript. Use ? instead to write client-side code.
2) Don't use Master Pages because you cannot use Page Specific Javascript functions.
3) Here's how to insert Javascript Functions in a Page with a Master Page.
I have written an Http Module that hooks onto the Response.Filter property of the current request and does various replacements within the HTML before it is sent to the client.All the work is done in the Write method which is overriding Write in the base class Stream.
The Write method is called multiple times for a single response - the HTML seems to be written to the output stream in chunks. My problem is that I don't have an efficient & reliable way of telling if the current chunk is the last chunk (for why I want to know this see below). The only way I have come up with is to check if the chunk contains a closing html tag - but this is not very efficient or reliable.
The reason this is needed is that the module must add the "Refresh" HTTP header to the response, but only if the HTML fulfills certain conditions (and there are certain conditions that mean the header must not be added). So, only when the last chunk has been seen does the code know if the header can be added or not. So, I either need a test for the last chunk, or on each call to Write I add the header if the current block of HTML passes the test (if it has not already been added) or remove the header if the current block of HTML fails the test (if it has already been added).
So, is there a better way to test for the last chuck OR is there a way to test for a particular header being in the response and delete it (there doesn't seem to be a way to do this - only to append headers)?
How do I setup a fix length to block an arrow image 'GIF' from wrapping around the search field as the page gets smaller?
The test site is located at http://cforedu.com
The snippet code reads:
<input type="image" src="images/images/p.gif" alt="Submit" width="15" height="10px" align="top"/>
I'm reading an invoice dataset and building a html table with checkboxes and textboxes in it, and I put that code in a postback = false block, then i got a button and a literal. The button click will loop through the html table checkboxes to calculate a total and assign it to the literal and display it. I got everything working except one thing, every time i click the button, the html table refreshes and lost all the value in textboxes....even though I put the html building block in the postback = false block,it seems like it still won't preserve the values in the textboxes once there's a button click...Anybody knows a solution to that? I want the textboxes keep what values are there.
Here is the code part:
[code]....
I have some data which is HTML format saved in database. Like the chat as follows.
Roy, 2/11/2011:
Sree, 2/11/2011:
But it gets saved in some HTML format in Database as follows.
[code]....
So, Is there any ways that I can show this in Text box as what I need. While debugging the code, when I did HTML Visulaliser, it showed me correct format. How can I achive this in my Textbox control.
I have a textbox which I need to enter html code into (like < strong> or < em> for example).The trouble is this is causing an error writing this back to the database. A potentially dangerous Request.Form value was detected from the client (tbVOther="< strong>testIs there a way around this without turning off the request validation setting?
View 3 RepliesI am trying to convert pdf to image without using any third party controls and then display the image in webpage.
View 6 Replieshow to convert both text and image together into an image. To clarify my question I can say if I have a text editor where I can add both text,image,audio or video player, how canI convert the whole texteditor.text (it gives me html code) to an image and save it in a file.
View 3 RepliesI have menu item on my master page that has block around the text when the page is first run. I wrote in the css on the link and visited property to change the color to match the image color that it is on. When a menu item is clicked the color changes to the right color. How do I get it to the right color on when the page first opens or is there a way to get rid of the block or make it transperant?
View 1 RepliesI have 2 separate code-block asp.Net expressions in an aspx markup, with an html content between (span element in the example below). In the first code-block, there is "i" as an increment variable for the for loop.Then the code-block is cut with an html content.And another code-block expression is opened but as I see I can reach the "i" variable which was declared in the previous code-block.
So, how asp.net handles -compiles- the pieces of code-block experrions declared in the mark up? Does it check the semi-colons and generates some anonymous methods which will end up with many calls to Response.Write in the last place?
<p>
<%for (int i = 0; i < 30; i++)
{
[code]....
<%= Html.RouteLink(">>>", new { page = (Model.PageIndex + 1) },null)%>
Is it possible to set image instead ">>>" and how?
I want my users to upload their photos to my website. I am using fileupload for this. I have jquery to crop the image to desired size ( according to user).What I am doing is this, when a user uploads a photo, I use the uploaded image's address as ImageUrl , and the user gets its pic dynamically as soon as he uploads it.And then with the help of jquery , user can crop it to dimension of his/her choice. Finally, I get a cropped and smaller image. [:)]But the real problem is this, if a user uploads a picture of greater dimensions ( e.g. 1600x1200) , image covers up all the screen, so I want a method so that the uploaded image get restricted to a fixed height and width (say 500x5500) before it is available for cropping to the user.I have tried .......,Image's Width=500, Height = 500 ( using asp:image ) and attribute.add.style("width:500;height:500); ( using html img ) in code behind after uploading image . The image first appears in 500x500 dimension but immediately changes to its original dimension...
View 3 Repliesi need a image control, who is able to convert the binary image data into image automatically, i find one which is paid control by telerik, but i need a freeware of it.
View 3 Repliesi have to convet a pdf file to html fromat and send it as an email by writing asp.net C# code
View 2 Replieshow to convert PDF file to xml file or html file?
View 6 Repliesi have to read pdf and create html document... for uploaded cv in my site... i can not use any shareware.please can anybody suggest me the best solution for converting pdf to html...or read pdf content using C#site is developed in C#, asp.net 3.5
View 4 RepliesI have data stored in the database with HTML format, and I want to get the value of this html content with MyReader.getString() after getting the html code I must do the conversion to PDF Format.
View 4 Repliesi want to convert html to pdf on the fly without creating file on sever and the pdf file appears to user to be open dirct how can i do it?
View 16 RepliesI've got an ASP.Net app that uses Jquery ajax to get dynamic html an insert into a certain div on the screen. This works but one of the tags is an image tag and no image is being displayed, just the "X" since image is on the server. The path of the image is on the server, ~/Images/user2.png.
I'm thinking about having a server side image, , hold the image i need that is not visible and somehow using jquery, "copy" that image to the real html image tag after it is appended.
But I can't think of how to copy it.
The thing to remember is the html image tag doesn't exist until the ajax data is loaded and appended to the destination tag.
can anyone post an example of how convert html to text? I'd like to remove all html tags from my string and show only plain text.
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