I am using fileuplaod control for uplaoding images. I want to change the aspect ratio of my image. Say 4:3 for horizontal pictures and 3:4 for the vertical images. How to do that in Asp.net
View 2 Repliesi want to convert image pixel . For example my image is 1024x768 , i want to convert it to 225x225 and i want to store the image in a folder with name. i don wan the code based on bitmap.
View 1 RepliesHow can I resize image through web.config file?while using generic handlers to resize image to upload?
View 1 RepliesI use image control in my page and i set Height=100px and width=100px for it
When I set imageurl fo this control it convert my image size to Height=100px width=100px
But I want it small my image Proportional my image scale i mean that if my image is vertical it small it with out change it's scale .
I have images of big size. I want to resize them according to their width and height. If width is bigger than height then maximum width will be 650px and height will in proportion of width. If height is bigger than width then maximum height will be 650px and width will be in proportion of height. How I will resize images proportionally using handler in ASP.Net,C#.
View 1 Repliesi am using fileupload asp.net controll so how i create image preview before image uploaded
View 6 Repliesi 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.
Just wondering if anyone has ever managed to find a way to have a datagridview image button column in a template field which display different images on different rows depending on some data element in the row. Our application needs to display a series of fees charged against an account column which will be either less then 500, 500 to 1000 or >1000. Some of those fees are charged at a full rate, others at a partial rate, and some are not charged at all. The user would like to see a simple 3-state graphic which would convey the simple info: full-charge, partial-charge, or no-charge. Sounds easy enough but I've not yet managed to find a way to do this. Every time I attempt to modify the individual cell's graphic it seems to want to change the graphic for all the rows.
View 3 RepliesDisplay Images from SQL Server Database using ASP.Net only display previous images only. new images are not visible
View 1 RepliesDoes anyone know how to display the uploaded image onto the webpage after the image has been uploaded via the asyncfileupload control?
I tried setting the value of an imageurl property of an image control within the OnUploadComplete event however it seems the code 1st refreshes the page, runs through the Page_Load event, then finally the OnUploadComplete, so I'm assuming since it's run last, this is why it doesn't display the imageurl.
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..?
I 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!
I am wanting to re-theme a .net website which has theme upload it is the nopCommerce website I have html templates with images that I created but when I uploaded the theme it only showed bg image header etc. and all text and other properties where far left aligned.
View 2 RepliesI am using a fileupload tool and an asp button. I want to upload image using fileupload, save it in a folder named images in my website and create its thumbnail view on the same page using VB.
View 1 Repliesi want to load image into image control emmidiatly when i am uploading it by using fileupload control that means when i am uploading a file i display on the page immediately on page in image control.
View 1 RepliesI have an image map that portrays 5 steps in a process.
When one of the locations in the image map is clicked I would like to associate a new image with the image map
That is identical to the original image except a different 'box' is highlighted, corresponding to the new step in
the process. Was not sure how to do this.
[Code]....
I'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]....
I 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
m 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 RepliesI've got an ASP.NET upload form on one page, where the user can upload an image. heres the code for that one:
<%@ Import Namespace="System" %>
<%@ Import Namespace="System.IO" %>
<html>
<head>
[Code].....
EDIT: By the way, the image uploads perfectly, it just won't show up on the next page.
I have the following code that is allowing me to save an image uploaded from a user into a root folder
HTML Code:
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click
Dim fileName As String = Path.GetFileName(FileUploadUserProfile.PostedFile.FileName)
FileUploadUserProfile.PostedFile.SaveAs((Server.MapPath("~/ImageStorage/") + fileName))
Response.Redirect(Request.Url.AbsoluteUri)
End Sub
Question one: Once i upload the file and i click on the ImageStorage folder, i don't see an image, but if i exit the entire applicxation and then i go back in i am able to see the image. How can i refresh the folder wothout having to exit the application?
I am trying to display the image once is uploaded. i have the following to display the image:
HTML Code:
<img src="string url = ResolveUrl("~/ImageStorage/" + filename)" />
Occe the page is uploaded i don't see an image, instead i see a little square with a red X
I am working my way through image upload tutorial and have a question. Is it possible to preview an image that is being uploaded without using javascript and using only razor and html? If so,
View 2 RepliesHow would I go about having a thumbnail preview of an image that has been uploaded through AsyncFileUpload?
View 2 RepliesI 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:
I have ASP.NET form with an upload control for users to post an image. On the server I load that image (using the Bitmap class) and resize it. Is there any danger in doing that when users upload malicious or affected files or will the code just throw an exception at some point and stop the whole process?
View 2 Replies