I have an example to convert pdf to images using GhostScript following this link:
[URL]convert pdf to images using GhostScript . So how can I do that better?
I am using GhostScript to generate some thumbnails of PDF pages in an ASP.NET application. I have it wrapped in this library called GhostScriptSharp that just uses DllImport to call methods in the GhostScript DLL.It looks like this wont work on a medium trust hosting environment, either because of the fact that it is calling unmanaged code, or that it looks like the library is creating files all over the place (outside my virtual directory). I ran Process Monitor and saw it trying to Read, QueryNameInformationFile, CreateFile and QueryStandardInformationFile in places like:
C:WINDOWSsystem32HalftoneDefault
or
C:gsgs8.63libHalftoneDefault
or
C:gsfontHalftoneDefault
Any ideas about whether this is "fixable" to run in medium trust? If I can't use GhostScript, is there another free/open source library that WILL work in Medium trust?
i am using the ghostscriptsharp wrapper for c# and ghostscript. I want to generate thumbnails out of pdf-files. Further Information on the sample-code are given here.There are different Methods imported form the ghostscript-c-dll "gsdll32.dll".
[DllImport("gsdll32.dll", EntryPoint = "gsapi_new_instance")]
private static extern int CreateAPIInstance(out IntPtr pinstance,
IntPtr caller_handle);
[code]...
I want to convert powerpoint into images when a user uploads it to my server. What is the best way of doing it?
I was using interop, but it seems to be working only on client side.
I have on web application and I wand to split pdf pages to corresponding images with open source or free dll.
View 1 Replieshow to upload images to server(application/images folder) and retrive(display) from and on client PC for asp.net. its just for uplaoding logo directly to server folder and retriving from server to client. i am not getting server path on client pc for image.
View 5 Repliesi have the following scenario, i have a column of a gridview that shows me a text telling me is the user is allowed or not to access to some page, but now i just showing allow and deny, but i wanna show images that represent me the action, how can i do that?
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i am using asp.net with c#, i have table images
shop nvarchar(50),
imgc image
imgo image
iam saving images in a database but while retreving it is showing blank images. i want to display as thumb nail images
I'm using ASP.NET 4 Web forms routing, for example like this:
routes.MapPageRoute("page-browse", "{Language}/{Label}", "~/Default.aspx")
So the webadress could look like: http://localhost/mywebsite/eng/home
In the root of my website I have a folder "Images".
Image display works when I'm in the root of my website, e.g. by using http://localhost/mywebsite/default.aspx
But when using routing it doesn't work, because the image relative url will look at http://localhost/mywebsite/eng/images instead of http://localhost/mywebsite/images
Is there a way to prevent this using ASP.NET 4 Routing mechanism? Or is the only way to use absolute url's to images?
I've been trying to get image caching working for the last 8 hours and I keep the same problem time and time again, I'm trying to cache Images at the moment and then when thats succesful, apply this to cache my js and css files. I have at the moment Sql Dependancy caching working on my dynamic pages but the page still takes to long due to images not caching.
What I have tried is going to IIS7 Management and adding HTTP Response Header for the images folder and setting various things for the cache control.i dont care how long it caches it on the client or on the proxy servers i just would like it to check when the file was modified and compare it with the one in the client or proxy cache and if they are different then fetch the new image which has been ftp up. i could solve this by changing the image name but the thing is the image name is generated when they are ftp'd to the site by an application and the name is a direct reference to the product so i cant change the name each time, as it would mean making a lot of otherpages accross the board.
so What i would like, is to set and expiry date of lets say 32 days or more on the images and then check to see if they have changed by date modified or some other way of checking(Etags maybe) I'm not sure, if they have changed on the server then redownload and recache them, I tried using post-check and pre-check together but that just permantly cached them, so when i change the image the only way it would display the new image is to just hit F5.
In Brief, how can i Cache images, on the client machine/ proxy cache and recache them when the modified date of the file has changed.
I want to show on one of my pages a slideshow type page. Basically I want it to show a selection of images from a folder and have the images scroll from right to left.
View 8 RepliesI want to write one program by visual studio 2008 (C# and ASP) that has web application and windows application.
I want to get clients images in web app(upload) and store them in DB (mysql) then send these images to windows app via web service (so i new web service, not web site). But i have 2 problems:
I have 2 ways to store images in mysql, first i should have BLOB field in DB -that it takes more space-, second i should save just name of each image in DB(so have image in one folder) -in this way i don't know how get image from clients and store them in that folder-. which one? Or what other? How (code) can i transfer image via web service(Byte[] or? ).
I wanted to combine app_themes css files into one on the fly. I did so using Mads Cristensen technique. But now all elements that has background image defined through css (see picture) don't display image. I believe that is because css files are not relatively referenced anymore (../), but through axd file. I'm trying to fix this by changing reference to image files without success. I already tried background: url("~/App_Themes/44/images/myimage.gif") and this works for pages that combined css. But the problem is that there are other pages in this project that don't use this css combining and now they lost reference to background images.
View 1 RepliesHow to Display the treeview control with multiple images(each link should be with one image) instead of + images in asp.net
View 2 RepliesI'm using an HttpHandler to display images from memory ... which is working fine.The image is displayed as a .png format in a popup window.My problem is printing the image from IE7 Web Browser using the popup menu displayed after doing a right-click, selecting 'Print Picture'.A blank page is being printed ... i.e. No Image, just the url and date on the bottom of the page and the page number on the top.I have also tried this with the image formatted as .jpg, with the same result.
View 6 RepliesI know that HTML is client sided and ASP.NET is server sided. The question is should I use HTML or ASP.NET Images and whats the difference?What are the properties of ASP.NET images and what are of HTML images.
View 3 RepliesI'm developing a new aspnet website with 200k images in a /Images/ -folder.Many operations in Visual Studio is slow because it access the folder, adding a web service takes 10 minutes.The images is not checked into scm (svn).ow should I structure the tree of code, to improve performance in VS?It would also be neat if not all developers needed to copy 200k images to their local disk to be able to develop on the site.
View 5 RepliesI have a string I need to convert back to a date. I can call .ToString("yyyyMMdd") and get the string i want. My question is how can I convert that back into a date? I'm trying something like the following with no luck.
DateTime d;
var formatInfo = new DateTimeFormatInfo {ShortDatePattern = "yyyyMMdd"};
if (DateTime.TryParse(details.DetectionTime.Date, formatInfo, DateTimeStyles.None, out d))
{
lit.Text = d.ToShortTimeString(); //would like 07/30/2010 as the text
}
I've never used DateTimeFormatInfo before if that isn't obvious. Can someone point me in the right direction. I know I could probably use substring and create a new DateTime(y, m, d) etc... I'm just wondering since c# interpreted .ToString() correctly, if it can't derive a date from the very same string it output.
i have a radiobuttonlist and dynamically i want to add images to it after fetching it from database. I fetch the required data and store it in data table and then try to bind images to radiobuttonlist but somehow the images are not getting displyed.
[code]...
I am trying to learn how to display image on a form by retrieving it from a database. I've been able to save the image in the database; however, I am not sure how to display it on the page using an image placeholder in c#.
Here is the code to retrieve the image information from the database in C#:
[Code]...
In the below code it does not show the images in the ouput though the img is in the specified location is there any other way to specify the location?
<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="CreditCardList.ascx.cs" Inherits="ResortManagement.Component.CreditCardList" %>
<%@ Register TagPrefix="exact" Namespace="Exact.Hospitality.Core.Web" Assembly="Exact.Hospitality.Core"%>
<%-- Credit Card --%>
<table>
<tbody>
<asp:Repeater ID="rptCreditCards" runat="server" OnItemDataBound="rptCreditCards_ItemDataBound" OnItemCommand="rptCreditCards_ItemCommand" >
<ItemTemplate>
[Code....]
I have a requirement wherein i need to load images into my listview. The images are located in the webserver.
foreach (var file in Directory.GetFiles(Server.MapPath(http://xxxnet/xxx/Programs_and_Services/Employee_Programs/Employee_Awards_Programs/Vision_Awards_Images/xxx/
)))
This line throws me an error System.Arugument exception. How do i give the folder then?
i would like to add images for a tree view like for root node one image and for child node other like that i would like to add different images for nodes..
View 1 Repliesin my application, images are not shown in IE,where as it works f9 in Mozila, it sucks me,Plz help me to solve out the problemcheck it out the websitewww.clcparivar.inimages visible in Mozila bt nt shown in IE
[URL]
I need checkboxlist with Images.When i mouse over to checkboxlist item display image like tool tip.Checkboxlist loaded from database.i will give picture url only and also i need text for list item.
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