Reading And Saving An Image From Url?
Mar 29, 2010
I would like to be able to read an image based on a url hosted elsewhere. To be clear, this is a legitimate service that is provided and they do allow caching of data, so I'm not trying to steal someone elses data.
So far I have the following code:
public static byte[] GetBytesFromUrl(string url)
{
byte[] bytes;
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
WebResponse resp = req.GetResponse();
The area that I'm looking to improve on is the emboldened line. I think it would be better to read in say 1024k chunks until the file end. Can anyone help me out with the syntax for this?
View 6 Replies
Similar Messages:
Aug 31, 2010
I need to be able to read an excel file from a file upload control but I can not save the file to disk first, it must be done in memory.
[Code]....
Above is my code for reading the data file if it IS saved to disk, but again, I have to be able to do this without saving the file to disk, it must be done in memory. I have not been able to find any sample code anywhere on how to do this from memory, everything seems to force the file be uploaded, saved to disk, and then read in the connection string, which again I can not do.
View 2 Replies
Oct 8, 2010
I have a third party CMS system that can create forms but can't manage true File upload capabities. I am able to get users brows for thier file and have the value submited to my custom .net code behind page for processing. So I end up with like "C:somefilefoldersomefile.doc".
But on my processing page I want to read this file (like the file uploader) and save it to a location. I tried using the file uploader control (but have it not visible) but realized I can't preset it as I was planning to set it and do the normal processing from there. Is there another way to do this?
View 3 Replies
Mar 26, 2010
I have to create PDF Files reading data from SQL Server where the data is in Binary format as Image data type.
View 2 Replies
Apr 10, 2010
We have a scenario where we would like to allow our users to upload images to the site. We are running on ASP.Net. A quick search did not result in anything good. It would be great if the control is free/open source but we do not mind paying a little bit.
View 1 Replies
Jan 12, 2010
How can I save an image into the disk after modification.
View 4 Replies
Mar 25, 2011
Is it possible to save the image from the clipboard to the disk using ASP.NET (VB)?
View 3 Replies
Jul 6, 2012
how to show an image without saving it.URL...I've used this but im experiencing troubles IE 6 & 7 dont show the pic. And IE 8 seems to have a limit of somekind. I have an person screen and a different upload popup-like-screen..I want to let the user upload it in this upload-screen and oly save it as the user say's save in the person screen so i don't want to save 1.001 pictures on the server if they don't click save in the person screen.
View 1 Replies
Mar 27, 2010
i am trying to save an image to database as a byte[]
The array size before i save it = 2118.
but in SQL 2008 the maximum size for an image type is 16.
so i am trying to get the image using Response.BinaryWrite(byte[]) I get an empty image.
View 4 Replies
Sep 27, 2010
I am reading an image from a physical path and writing an text on it, but without saving it on physical path i need to show the edited image on page.
Is it possible to show(write) on page with out saving the image in .net
View 1 Replies
Oct 3, 2012
I'd like to know how to do it myself. Surely you can grab something from the html or something?
View 1 Replies
Nov 16, 2011
I have a very simple app here. It pulls a users picture from AD, saves it and then displays it as an asp:Image. The program runs perfectly in the IDE but fails after I publish it and try to browse to it. Here's the code and the error.
Default.aspx code.
Code:
<%@ Page Title="Home Page" Language="vb" MasterPageFile="~/Site.Master" AutoEventWireup="false"
CodeBehind="Default.aspx.vb" Inherits="WebApplication3._Default" %>
<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
</asp:Content>
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
<asp:TextBox ID="TextBox1" runat="server" Width="247px"></asp:TextBox>
[Code]....
View 8 Replies
Apr 27, 2016
I've generated QR code using the code given on your other site.How to save the QR code as an image?
View 1 Replies
Aug 16, 2012
I tried doing a search about saving a gridview as an image but have not found anything that works. I need to capture it or create one as an image to send to a mobile device for a dashboard. I know people tried capturing the grid like a screen shot but is there any other way? Sometimes the grid goes off screen. I assume i could create an image dynamically right? The tough part is setting the width of the columns and right/left justifying the data. Even if I could save an html table to an image also that would work.
View 1 Replies
Mar 15, 2011
how to read content information from a saved image in SQL image column. I do not want to read the image and display it I know how to do that, what I am trying to accomplish is read the content of that images already saved in the SQL image field, for instance I have a saved image (.JPG, .GIF, PNG, BMP etc) that contains customer demographic information such as (name,address,phone etc) and also contains sensitive data such as (SSN, DOB etc) I just want to retrieve the demographic information and display it on the screen leaving out the sensitive data.
View 1 Replies
Feb 18, 2010
I am storing an image file into Access database using access form. I am trying to read it out and render it on a webpage using ASP.Net 3.5 and C# but it has read error message.
But if I store the same image to Access using ASP.NET and C# and then retrieve it using ASP.NET and C# and has no problem at all.
Is Access store varbinary difference that ASP.NET store varbinary?
View 5 Replies
Jan 4, 2011
I have a fileupload control in my form which stores image to the SQL database as binary data.
BUT it stores as 0X000000.... I just realized that.
BUT IT DOESN'T MAKE ANY SENSE BECAUSE WHEN I PRINT THIS BYTE ARRAY IT SHOWS THE CONTENT.
This part is the server side code:
[Code]....
StoreToDatabase function:
[Code]....
DisplayFileContent function:
[Code]....
Displaying function shows like 2552162552240167470737001110960960025521906708667658777998101220131211111225181............BUT IN DATABASE it stores like 0X00000000000000000...
View 6 Replies
Jan 6, 2010
i have an image file which is of (600* 800 size) or any size . now i need to convert them into an thubnail image size which is of size **(110*110)**
but if i reduce the size of an image i should not change the Quality of image. as once we reduce an image size the the Quality of the image is gone
is there any way without affecting the Quality of the image we can convert them into an thumbnail image[ is there any built in class for that in .net)
View 2 Replies
Jul 18, 2010
I have been messing around with uploading working with and then saving a resulting image.
However at the moment im getting errors in the outputted image, even with very simple code which takes the filebase, puts it into an image object then saves it back out.
Also i would like to know if there is a method in MVC to check the file extension or somehow determine wether it is an image file.
Here is my code:
[Code]....
View 3 Replies
Sep 16, 2010
I have a toolbar on my chart:
[Code]....
For the SaveImage, I want to be able to set my image name with its own name.
the name can be found using:
string fileName = Request.PhysicalApplicationPath + @"graphs"+User.Identity.Name+graphID+".jpg";
Right now, when I click save, it always show chart.png
And also, I want to download the chart as jpg.
View 2 Replies
Jan 30, 2011
I have a web project and I saved my images in Physical folders in hdd Like d:SecretImagesImagename. But I can't open the files when I have to? I thought if it can saves for examle d:SecretImagesTemp.jpg, I can open when I have to but, I can't.
View 3 Replies
Mar 23, 2011
Here is my code:
protected void SaveMyImage_Click(object sender, EventArgs e)
{
string imageUrl = Hidden1.Value;
string saveLocation = Server.MapPath("~/PictureUploads/whatever2.png") ;
[Code]....
The top imageUrl declartion is taking in a Base64 image string, and I want to convert it into an image. I think my set of code only works for images like "www.mysite.com/test.jpg" not for a Base64 string.
View 2 Replies
Jul 13, 2011
I am trying to save some resized images to the server. Why I get the following error on the vSmlImgFle.Save(vTmpDir.ToString & vFile.Name, ImageFormat.Jpeg) (in red below) line?
A generic error occurred in GDI+.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Runtime.InteropServices.ExternalException: A generic error occurred in GDI+.
And while we are on the subject of dealing with image files, is there a way to get the file format from the original file, rather than looking at the file extension to determine the file type:
If Ext = "JPG" then
Type = ImageFormat.Jpeg
Else if Ext = "JPG" then
Etc.
I thought that vImgFormat = vOrgImgFle.RawFormat might do it but that seems to return something completely different than ImageFormat.Jpeg.
Code:
Protected Function CopyScaleImages(ByVal FileSet As FileInfo())
Dim vTmpDir As New DirectoryInfo(Server.MapPath("~/SanInspPhotosTemp/"))
Dim vDir As New DirectoryInfo(Server.MapPath("~/SanInspPhotos/"))
Dim imgHght As Integer
[Code] .....
View 9 Replies
Jan 23, 2012
I am asking user to upload images using file upload control..In the database i am saving the filename as varchar. My problem is how do i save it.. If file name is saved in database where is file actually saved? If i make a folder to save,it is hard code path.. So, any way to save the file uploaded by user.
View 1 Replies
Feb 21, 2012
I am trying to make a photo gallery. I want to save the uploaded image to data base ...the article below at "
Display image after upload without page refresh or postback using ASP.Net AsyncFileUpload Control" shows how to show the uploaded image.. How to save the image in SQl Database?
I do not know how to do it.. Can the code be modified..?
View 1 Replies
