AJAX :: How To Get Image's Dimensions When The Image Is Being Uploaded By Ajax AsyncFileUploader
Nov 26, 2010I need to know, how to add a validator in Ajax AsynFileUploader which will validate the image dimensions.
View 8 Replies
Similar Messages:
C# - Check Uploaded Image's Dimensions?
Mar 4, 2011m using asp.net 3.5 and c# on my website.Here is myquestion:I have an upload button and asp:Image on a page. An user can upload an image from his computer and that image will be displayed in the asp:image. But before I display the image, I would like to check the width and height of the uploaded image. How do I do this?
View 3 RepliesWeb Forms :: Display Image Dimensions (height And Width) On Image Mouseover
Feb 9, 2014I want to show image with size.when the cursor will hover to image it will show size like google image.
View 1 RepliesWeb Forms :: Check Image File Size And Dimensions (Height And Width) Before Image Upload
Oct 18, 2013How to upload images with some conditions
Like
size not gretr than 50 kb
with = 110px, height 140 px
etc..
AJAX :: Preview Of An Image That Has Been Uploaded Through AsyncFileUpload?
Feb 8, 2011How would I go about having a thumbnail preview of an image that has been uploaded through AsyncFileUpload?
View 2 RepliesAJAX :: Display Uploaded Image Via Javascript?
Jun 1, 2010I have an asyncfileupload control. AFTER the file has been successfully saved to disk I want to assign the uploaded image to a HTML element. To show it to the user.
Important: in the afuFlyer_UploadedComplete method I'm renaming the image, so the image saved to disk does NOT have the same name as the file the user initially uploaded.
I have this:
<cc1:AsyncFileUpload ID="afuFlyer" OnClientUploadComplete="Async_UploadComplete" OnUploadedComplete="afuFlyer_UploadedComplete" UploaderStyle="Modern" runat="server" />
and a javascript function:
function Async_UploadComplete(sender, args) {
var filename = args.get_fileName();
var contentType = args.get_contentType();
var text = "Size of " + filename + " is " + args.get_length() + " bytes";
document.getElementById('lblStatus').innerText = text;
}
But the args.get_fileName(); is useless since the filename has been changed. So I need to pass the new filename to this method somehow?
Also, is the image actually already saved to disk when the Async_UploadComplete function is called? Or has the upload to the server just been completed and not the saving to server disk?
Ive also tried working with ScriptManager.RegisterClientScriptBlock and ScriptManager.RegisterStartupScript in afuFlyer_UploadedComplete method without success:
AJAX :: Uploading Image With AsynFileUpload And Changing Image Url Of An Image Control?
Jun 7, 2010I Used AsyncFileUpload(one of Ajac Control Toolkit Controls) to Uploading User's Image. this works well. But i want to change the image url of an image contorl to uploaded image url. how can i perform that? I put Image control in a Update Panel:
[Code]....
in C# code I wrote these:
[Code]....
But it does not work. Image is like Previous. Note that ImageOperations.ResizeFromStream() method resizes and saves the image to a specefic folder. actually I should trigger a Postback to Update the Update Panel but How to do that. I usedUpdatePanelNew.Update(); but it does not work!
Web Forms :: FileUpload Control / How To Create Image Preview Before Image Uploaded
Sep 20, 2010i am using fileupload asp.net controll so how i create image preview before image uploaded
View 6 RepliesWeb Forms :: Newly Uploaded Image Is Shown In Image?
Jan 30, 2010i did this code to upload file and displaying it in the image:
[Code]....
the code works good. the file is uploaded under my website here in the solution explorer: now after uploading the file,the newly uploaded file is shown in the image(since there were a few more images present in the same location but they were not shown by the image) i used this url to the imageurl:
ResolveUrl("~")
which returns me this:
WebSite1
now my question is why the newly uploaded image is shown in the image? there were several other images present at the same location and even i have not used something in my code that tells to show only the newly added image from my website into the image.
C# - Get Remote Image Dimensions?
Apr 9, 2010Given a URL to an image (and not the image itself), what's the most efficient of getting it's dimensions? I would like to change the height and width attributes in the image tag (<img>) if it is greater than 200x200. However, if it's smaller than that, then I'd like to keep the size as it is. (I'm using ASP.NET/C#)
View 4 RepliesChecking Dimensions Of An Image?
Dec 22, 2010using vb.net 2005.I am reading an image using a FileStream object and wondering this: is there a way that I can check what the dimensions are of a file before I read it using the FileStream object? the code I have now is like this:
[Code]....
C# - Get Dimensions Of An Image On The Web - Avoid Memory Hog?
Jan 6, 2011Im getting some images from a webpage at a specified url, i want to get their heights and widths. I'm using something like this:
Stream str = null;
HttpWebRequest wReq = (HttpWebRequest)WebRequest.Create(ImageUrl);
HttpWebResponse wRes = (HttpWebResponse)(wReq).GetResponse();
str = wRes.GetResponseStream();
var imageOrig = System.Drawing.Image.FromStream(str);
int height = imageOrig.Height;
int width = imageOrig.Width;
My main concern with this is that that the image file may actually be very large,Is there anything I can do? ie specify to only get images if they are less than 1mb?or is there a better alternative approach to getting the dimension of an image from a webpage?
Get Image Dimensions Using Javascript During File Upload?
May 19, 2010I have file upload UI element in which the user will upload images. Here I have to validate the height and width of the image in client side. Is it possible to find the size of the image having only the file path in JS?Note: If No, is there any other way to find the dimensions in Client side?
View 4 RepliesWeb Forms :: Reduce Image Size And Dimensions Using C#
May 30, 2012I have many image in my page my images size are between 100 -200kb I want redeuce my images size to 4-5Kb ... How I can do it? is there any control to do it?
View 1 RepliesAJAX :: Upload Image Using FileUpload And Display In Image Control?
Jan 15, 2014I want to upload image through fileupload toolbox and display it in image control.
The image control should get the path from fileupload and should display the image.
I have done it with following code attached
HTML Markup-
<asp:FileUpload ID="FileUpload1" runat="server"
style="top: 256px; left: 533px; position: absolute; height: 23px; width: 217px" ForeColor="White" />
<asp:Button ID="btnset" runat="server" Font-Bold="False" Font-Names="Times New Roman" Font-Size="Medium" style="top: 309px; left: 605px; position: absolute; height: 26px; width: 81px" Text="Set Photo " />
<asp:Image ID="Image2" runat="server" style="top: 66px; left: 568px; position: absolute; height: 152px; width: 136px" BorderColor="#CCCCFF" BorderStyle="Ridge" />
VB Code-
Protected Sub btnset_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnset.Click
Image2.ImageUrl = FileUpload1.FileName
End Sub
AJAX :: Detecting Image Orientation - HoverMenuExtender With Image?
Jun 9, 2010Is there a way of detecting the orientation of an image landscape verses portrait or other so that the image is displayed correctly? - What I have is an Ajax HoverMenuExtender with an image contained in a panel. The panel is part of an Ajax Accordion and the image appears in the panel (via a string value for location) when I hover over a thumbnail in the Accordion's Content.
View 1 RepliesWeb Forms :: Validate (Check) File Size In KB Dimensions (Height And Width) Of Image?
May 7, 2015I use fileupload control to upload image below is code:
protected void BtnUpload3Img_Click(object sender, EventArgs e)
{
uploadImageError.Visible = true;
if (fup3.HasFile && fup3.PostedFile.ContentLength < 102400)
[Code]....
in above code I define format of image that user can upload .png or .jpg image and size of image should be lessthan 100KB now I want define that users just can upload images with dimension 1007*143 how I can do it?
AJAX :: AsyncFileUploader Is Not Working In IE8?
Nov 26, 2010Here is the code of my Ajax Toolkit AsyncFileUploader which I have added in my ASP.Net(C#) web application.
[Code]....
[Code]....
public void afuUpload_UploadedComplete(object sender, AsyncFileUploadEventArgs e)
AJAX :: Asyncfileuploader Uploads Twice?
Oct 29, 2010I'm hoping that somebody cleverer than I am can explain what's happening with my file uploading and how to improve it.My website is used by vets to submit photographs of tumours in horses for examination by another vet and so it's important that the pictures uploaded are high quality, and therefore the file size is large. Since they might be uploading details of several tumours at a time with several photos of each uploading times can be very long.
I accept that upload speeds are generally slower than download speeds and I have put notes on the page to advise the user to be patient while the images upload. However, I've noticed when using Google Chrome, which displays a percentage-complete in the status bar when files are being uploaded that what seems to happen is that when the user selects a picture from the asyncfileupload control it then slowly counts to 100% as the image is uploaded. But when they then click on the 'Save' button which is when code-behind uploads the file to the web server and writes an entry in the database it again counts to 100% at the same, slow speed.
It's as if the file is being uploaded twice. It's as if the file is being uploaded twice, but I've only coded it to happen once, when the 'Save' button is pressed. The first upload must be some part of the way the asyncfileupload control works. So am I using it incorrectly? Should I somehow be using the inbuilt, automated upload to get the image to my server rather than in the code-behind of the 'Save' button?
One other piece of information which may be relevant is that at the point the picture is uploaded by the asyncfileupload control there is no associated record in the database for it to be linked to. When the 'Save' button is clicked a record for that tumour is created first, then then the image(s) is uploaded and an associated record created with the image filename, so using the automated uploading of the asyncfileupload control may not be possible for me as at that point there is no record to link the filename to. If that's the case can I disable it somehow?
AJAX :: How To Style Toolkit AsyncFileUploader Control
Nov 26, 2010Ajax AsyncFileUploader is appreaing very bad in my ASP.Net(C#) web app.
Another very annoying thig is that; when its style is set to modren it does not show that grey image with the text "Select File" in any of the browser except IE 7.
While with "Tradition Style" the height of this control looks so squeezed in both IE 7 & IE 8 , And Is there any way so that we can change the style of that Browser button like the other buttons on out site and can we apply textbox skin on the uploader to it can shape like a textbox?
AJAX :: Image Button In Datalist ItemTemplate And Image Button Click Call Editor
Apr 23, 2012Image Button in Datalist it ItemTemplate and Image Button Click Call Editor(Ajax)
View 1 RepliesAJAX :: Image Is Visible In Image Control In Design Time But Not Visible On Runtime
Oct 3, 2013I am learning asp.net using Visual web developer 2008 express.
I have an image control with the html code below
<div class="Header">
<asp:Image ID="image1" runat="server"
ImageUrl="D:/Master/test.jpg" Width="500" Height="300"
AlternateText="UNRA Fort Portal Intranet"/>
</div>
In design view, the image shows but when i run the app, the image is not shown. Only the alternate text is displayed.
The css code code as below.
.Header
{
top:10px;
left:20px;
position:absolute;
width:800px;
background-image:URL(D:/Master/test.jpg);
background-repeat:repeat-x;
}
AJAX :: How To Display Image In Ajax Editor Control
May 6, 2010i m working on ajax editor control, here i want to display image in ajax editor control is there any way to display image in this control ?
View 1 RepliesC# Change Dpi Of An Uploaded Image?
Jan 21, 2011I've got to following function which is called to change the resolution of an image. I want to do this so uploaded image with for example 300dpi will be modified to 72dpi (for web). This question is related to another question here on SO where i'm working on.
I'm creation an extension method for this to be able to use this function on more places in my application, instead of only when uploading new files. (See above mentioned question)
public static byte[] SetDpiTo72(this byte[] imageToFit, string mimeType, Size newSize)
{
using (MemoryStream memoryStream = new MemoryStream(), newMemoryStream = new MemoryStream())
{
memoryStream.Write(imageToFit, 0, imageToFit.Length);
[Code]....
Displaying An Uploaded Image?
Feb 2, 2010I have code that is successfully uploading images to a folder on my website with the code below.. what I would need to do next to actually display that image on the same .aspx just after the actual upload?
Private
Sub btnUpload_Click(ByVal sender
As
Object, _ByVal e
As System.EventArgs)
Handles btnUpload.Click
Dim destDir
As
String = Server.MapPath("./images/Upload")
Dim fName
As
String = Path.GetFileName(uplPicture.PostedFile.FileName)
Dim destPath
As
String = Path.Combine(destDir, fName)True
lblUploadSuccessful.Text = "Upload succeeded."
End
Sub