I 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.
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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 am using fileupload asp.net controll so how i create image preview before image uploaded
View 6 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 am looking c# code which creates better quality higher resolution thumbnail image. i am having an image of dimension(600 * 900) and i need to create thumbnail of dimension (100 * 100) with high quality.
View 3 RepliesIn my project there is webhandler to create image and display it in all pages of site like below.
<img id="imgpro" runat="server" ImageUrl="/images/imagedisplay.ashx?ID=<%#Eval("ID") %>&Table=ProductPhotos&Thumbnail=true&DefaultImage=true" AlternateText="<%#Eval("Name") %>" />
Now I want to create a thumbnail from image which will create from above line code.
i don't want to change the code for webhandler because it will reflect in all other pages.
how can i create thumbnail from that image in particular page in which webhandler called.
Showing thumbnail of uploaded media files (pictures, videos etc..) I tried to extract thumbnails from thumbnails.db using Microsoft Shell Controls And Automation (Interop.Shell32.dll). I followed [URL] PROBLEM: I tried it in WPF application and it worked. Then i used the same code in ASP.NET WebForms website and it works for pictures but doest not work for videos. I also tried the same in clean console application but it doesn't work as well. But in wpf it works! the same assembly. Assembly is from Window 7, but neither WinXp's Interop.Shell32.dll works for videos in websites. It throws an exception NotImplementedException whenn I call IExtractImage.Extract(ref IntPtr phBmpThumbnail); Can you explain this behaviour? [URL]
View 1 RepliesI 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?
I have this code to insert a picture from database into an ImageControl on my ASP.NET form:
strConnString = "server=" + Server + ";database=" + DataBase + ";UID=" + UID + ";password=" + PASS + ";";SqlConnection MyConnection = new SqlConnection(strConnString);SqlCommand MyCommand = new SqlCommand("SELECT Pic FROM MEN WHERE ID=5", MyConnection);MyConnection.Open();SqlDataReader MyReader = MyCommand.ExecuteReader();if (MyReader.Read()){ byte[] m_MyImage = (byte[])MyReader["Pic"]; Response.BinaryWrite(m_MyImage);}
And I have this ImageControl on the form:
<asp:Image Width="88" Height="100" Runat="server" ID="m_Image" NAME="m_Image" />
but when I run the code, I see the picture big on the screen and not in my ImageControl.
i also put this in the form_load:
m_Image.ImageUrl = "MyPhoneBook.aspx?m_Image";my control is: m_Imagemy control ID is: m_Imagemy namespace is MyPhoneBook
but still dont work
is there any method on showing the image for the uploaded video files which are in flv format? i saw all the video in youtube got show the image of the video. how to do it?
View 4 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 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 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 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 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.
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 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?
I'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 RepliesRefer 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?
