Web Forms :: How To Generate Thumbnail Image From Original Image
Jul 3, 2012i want to generate thumbnail image from big image and store into separate folder.
View 1 Repliesi want to generate thumbnail image from big image and store into separate folder.
View 1 RepliesI need to develop image gallery
Image saved in Folder called Images and image Name , Description saved in Database Table Images.
On Deafault.aspx
Thubnail images should display with out any change in Quality i.e by DataList Control
On Click of Thubnail images Fullview of image with width and height same as image width and height
Next, Previous, Close Buttons on Popup window
I have image in my webpage that it has this property width=250px hight:200 and image size :200KB
i want when i put this image in my page with this Property width:100px and hight:100px image size Automatically change EX:100KB how i can do it ?
I used below code for uploading image and show in image control with thumpnail metod for reducing image size:
protected void BtnUpload_Click(object sender, EventArgs e)
{
string path = Server.MapPath(".") + "../image/House/product";
string filename = System.IO.Path.GetFileName(fup1.PostedFile.FileName);
string[] validext = { ".jpg", ".png" };
string ext = System.IO.Path.GetExtension(fup1.PostedFile.FileName);
if (Array.IndexOf(validext, ext.ToLower()) < 0)
[Code]...
It save original image in host, now I want it save image that reduce size with GetThumpnail metod in other place How I can do it?
Refer below threads: [URL] ....
I used code for reducing image size(GenerateThumbnail) in above threads my images were in datalist now I have image in my page that isn't in datalist
<asp:Image ID="Image" runat="server" CssClass="GVimg" style="Height:85px; Width:110px" />
And bind it from database
SqlCommand _cmd1 = new SqlCommand("selectFUP1", _cn);
_cmd1.CommandType = CommandType.StoredProcedure;
_cn.Open(); _cmd1.Parameters.AddWithValue("@Behcode", data);
SqlDataReader _dr = _cmd1.ExecuteReader();
while (_dr.Read()) {
image.ImageUrl = "~/image/house/product/" + _dr["Image2"].ToString();
lblerrorV.Text = " ";
}
_cn.Close();
Now I want use GenerateThumbnail code that was in threads for above code... How I can do it?
I have a simple store that I have created following the book "Pro ASP.Net MVC 2 Framework" and in this book there is one table in the db: product.
This table hold the product data (id, name, price, category, image)
There is a sqlrepository that returns a linq table object in the sqlrepository constructor like this:
[Code]....
I have very basic knowledge of ASP.net. I am using following script to resize and image, but the problem is it increases the disk volume of resized image to almost 4 times or original image.
Example:
Original Image: 1024 x 769px and Disk space: 135 KB
Resized Image: 600 x 380px and Disk space: 825KB
Notice resized image becomes 825KB.
Quote:
[code]....
I have a ModalPopupExtender control inside accordin control, users can add images, that I sotre the path in database(sql server) and the actual image in physical address inside web server,I automatically resize the image to thumbnail size in C#, when users first connect to the site,the see the thubmnail version of the image,which is much faster to download,and by clicking the thubnail, the hidden asp:pnael is shown with imzge in full size, I use javascript to unhide the panel and also change the image source to actual image,everything works fine in IE, but in Firefox and Chrome, the first time user clicks on thumbnail can not see the full size image,only after couple of time, they see the full size image? what could be the problem?
I am using asp.net ,C# what is the best way to achieve this?
Here is this thing which to me looks possible, but when I searched over the net I couldnt find anything.
I want to create a page where I can upload an image using any upload function and then display it. Now after diplaying it I want to select the hotspots for an image map. The coordinates of image map values are stored in a database.
Basically I want that to create image maps and hotspots I dont use any offline software, this work is successfully completed and working perfectly, but i want generate one identification where i click the hot spots position in image or CSS file Generate for user identifications, So how can i solve this problem.
I hope You are clear in that what I am looking for.
in my asp.net+vb web i am using this code to display image of workers in web page as per their id and it works fine
Dim id1 As String = "11022"
id1 = " + idtxt.Text + "
Image1.ImageUrl = "~/photos/" + ID + ".jpg"
End If
there persons whose photo is not uploaded in server . i want to show an alternate image name notfound.jpg if the photo is not found
I have an Image control on my page that should display a thumbnail preview of the actual image. The URL property of this control is assigned through the code-behind using:
imgHolder.URL = @table.Row[0].ItemArray[0].ToString();
Before moving my files to another location, this assignment works fine (The files used to be located inside the application folder). But after moving all files to another drive in the same server, the images don't seem to render any longer. I can upload/download files fine but they just won't display as thumbnails on the page.
Does anyone know a free way of doing this in asp.net?
View 4 RepliesThis is code that reduce our image size in page
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<asp:Image ID="Image1" runat="server" ImageUrl = "~/Jellyfish.jpg" Height = "400px" Width = "400px"/>
[Code] ....
I want use it in Data List ... In my datalist i have 3 image that i bind from DB i want reduce this image size how i can do it with this code?
I want to get thumbnail image from embedded videos of myspace, break.com, flickr.com etc using C#.net
View 4 RepliesI have a requirement where i need to upload image files and display them as thumbnails on webpage. when clicked on thumbnial image the orginal uploaded image must display.iam in great confusion whether to make thumbnails dinamically on the fly when retrieving the orginal image or make thumbnails and save them to saperatefolder when uploading and save orginal image to another folder.
View 5 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 RepliesHow to provide an alternate image when the original image is missing ....
View 1 RepliesI've got:
<asp:HyperLink ID="HyperLink2" runat="server" NavigateUrl='<%# "PropertyDetails.aspx?propertyId=" & Eval("propertyId").tostring %>'><asp:Literal ID="Image1" runat="server" Text='<%# Eval("imageId", "<img src=""images/properties/{0}_thumb") %>' /><asp:Literal ID="Image2" runat="server" Text='<%# Eval("imageFormat", "{0}"" alt="""">") %>' /></asp:hyperlink>
which displays an image from my db.
However, if there is not an image - e.g. if my property record doesn't have any images associated with it, I would like to display a default thumbnail.
Have a look at this link.Web pageIf I want to have this kind of speed in my page load which consists of many thumbnail images. It that image is stored in database or in file system.What measures to take to achive this kind of speed like indexing, denormalization, caching and what else?
View 7 RepliesHow can I create Thumbnail Image For Pdf files uploaded by user .. The Thumbnail contains first Page of Pdf only.. Is it Possible through ItextSharp ?
View 1 RepliesI want to display the thumbnail image in grid view from file location . how to generate that of .jpeg file
I am using C# language with asp.net
I have a gridview which displays thumbnails in the first column and details in the other columns. The thumbnail URL is being retrieved using the following:
[Code]....
However, if the thumbnail cannot be located, a white box with a cross appears instead (as expected).
To handle this better, I would like to display a different image if the thumbnail cannot be located for any reason, for example an image saying "Image Cannot Be Displayed". But I am unsure of how to do this, of even where to do this. Essentially I need to assess the value that the datagrid is using for the particular URL when it is databound. But can I put VB.NET code in this?
I use these code for resizing image
behind code
public string img_resize(string picname, int maxHeight, int maxWidth)
{
System.Drawing.Image currentImage = System.Drawing.Image.FromFile(server.mappath("mypics") + picname);
double imgHeight = 0;
double imgWidth = 0;
imgHeight = currentImage.Height;
imgWidth = currentImage.Width;
[code].....
but in this line occur error
<ItemTemplate> <%#img_resize(Eval("my_img"),100, 80)%> </ItemTemplate>
error: Parser Error
Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately. Parser Error Message: The server tag is not well formed.
what should i do ?
I have a working application to save an image file to my sql database (Saves as "Original_Image" in the DB TBL_ImageGallery). I have a file limit on the upload of 1 MB. This also works great and the image is being saved beautifully. I found a bit of an issue. Being i am working on a network with 2 bonded T1 connections the streaming of images to my site, when tested internally, is effortless. I am not sure that this will be the same with a generic bandwidth. I want to store the original image size into the databse (already done) but also store a smaller sized (in bytes not actual size [Width, Height]) to my database in a "ThumbNail" column. This will allow the browser to only have to pass the "Thumbnail" sized image, obviously this needs to be much smaller than the original (ex: 1MB orignal I want to save as 12KB image in the thumbnail column), to the thumbnail img control in the user's interface.
I am not sure if this is possible or if there is a need of third party controls. I am interested in doing this as either a stored procedure or in the C# code on an event fire. There may be a better / other solution to this and if that is the case I am also interested
I want to display an image in its original size, not depending on the image size on the page. I use IMAGE from the toolbox.
how can I display an image without stretching it to the image size on the form?
I use VS2010 Express