.net - The Images In The Gridview Will Not Rendered?
Oct 5, 2010
i am developing in vb.net. i have a gridview with a template field, in which i have a asp:image tag. But the browser dont show any image. i does not render the image. if i check the sourccode in the browser there is no image tag. But the visual web developer show the image. i tried all avriation of paths.
I have a gridview control inside an updatepanel. When I run the app and look at the source code generated, there is no source code about gridview. So, I can't aproach to the elements inside the gridview.
My question is, where is rendered code of gridview and how can I approach controls inside it?
i have the following scenario, i have a column of a gridview that shows me a text telling me is the user is allowed or not to access to some page, but now i just showing allow and deny, but i wanna show images that represent me the action, how can i do that?
I'm trying to freeze columns in gridview where grid has static height and all rows are rendered(no paging and scroll var is visible).I only managed to add scroll through content by overflow property,but this time all columns are scrolling as well.My task is to freeze columns while maintaining column width.Let this be my grid
<div style="height:200px;overflow:auto;"> <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" UseAccessibleHeader="true or false">
I'm trying to show images that come from a sql query into a GridView column, the problem is that the best solution found in the web searches the database twice for each row.
This solution says that we have to first create a handler (ImageHandler.ashx),
It will receive the ID of the row that contains the image, and then query the database with that ID.
Then it will finally perform something like "context.Response.BinaryWrite((byte[])dReader["Photo"]);" (in this case the handler uses a DataReader, I guess we could use another approach)
We also have to declare the image column in the markup as:
The problem is that, the Grid is bound to a SqlDataSource with a SelectCommand like: "Select ID, Name, Photo FROM Employees", that is already querying the database, then the GridView will execute the handler with the ID in it's query string, so the handler will query the database again for the same row, to extract the image.
Isn't there a way to send the image to the handler, so that it only performs the instruction "context.Response.BinaryWrite..." without having to query the database again?
i am writing a forum using asp.net and also i have to creat and use asp.net services (for one part) this is my service:
[Code]....
within the database i have added an image path for the avatars of the users that add comments. So i am wondering if there is any ways i could add these images withing the gridview above
i have gone though this URL
but i realy can not follow it when it commens to the images part
Can someone point me to a tutorial that shows how sorting is done with small images showing the sort direction. I'm using linq-to -sql so I'd like something that shows how dynamic linq works.
I have a gridview that displays images from SQL. The gridview currently displays the images vertically, is there a way to make the images display horizontally?
protected void btnsave_Click(object sender, EventArgs e) { qry = "Insert into Imagedemo values('"+txtid.Text+"','"+txtname.Text+"')"; if (this.fuDemo.HasFile) { fuDemo.SaveAs(Server.MapPath("~/Appli/" + this.fuDemo.FileName));
[Code] ....
My image is saved in the folder and id and name is stored in database. In another form there is text box and submit button when i add id in that text box and submit it then the image stored on that id should be fetched.
The gridview has different column widths because of the information that is being displayed, those sizes are set .aspx file. But, the generated pdf file auto adjusts the width of each column to be the same size, therefore the information is shrinked and doesnt look good..
I tried the following:
gridview.Width =100; or gridview.Style.Add("width","100"); or gridview.Columns[3].ItemStyle.Width =Unit.Pixel(10);
And many more but haven't been able to adjust the gridview to it's original columns width. How can I do that?
This is the code I use to generate the PDF file:
Response.ContentType = "application/pdf"; Response.AddHeader("content-disposition", "attachment;filename=UserDetails.pdf"); Response.Cache.SetCacheability(HttpCacheability.NoCache); StringWriter sw = new StringWriter(); HtmlTextWriter hw = new HtmlTextWriter(sw);
I am using the iTextSharp library to export a gridview with images to pdf. Some of the image urls are not directly to an image, but rather direct you to a .aspx page which displays the image. (includes a parameter with the id, and when you view the url in a browser you can see the image.) When I run the below code, I get an error that the image url in not a recognized image format.
Code: Response.ContentType = "application/pdf"; Response.AddHeader("content-disposition", "attachment;filename=GridViewExport.pdf"); Response.Cache.SetCacheability(HttpCacheability.NoCache); StringWriter sw = new StringWriter(); HtmlTextWriter hw = new HtmlTextWriter(sw);
I've been trying to get image caching working for the last 8 hours and I keep the same problem time and time again, I'm trying to cache Images at the moment and then when thats succesful, apply this to cache my js and css files. I have at the moment Sql Dependancy caching working on my dynamic pages but the page still takes to long due to images not caching.
What I have tried is going to IIS7 Management and adding HTTP Response Header for the images folder and setting various things for the cache control.i dont care how long it caches it on the client or on the proxy servers i just would like it to check when the file was modified and compare it with the one in the client or proxy cache and if they are different then fetch the new image which has been ftp up. i could solve this by changing the image name but the thing is the image name is generated when they are ftp'd to the site by an application and the name is a direct reference to the product so i cant change the name each time, as it would mean making a lot of otherpages accross the board.
so What i would like, is to set and expiry date of lets say 32 days or more on the images and then check to see if they have changed by date modified or some other way of checking(Etags maybe) I'm not sure, if they have changed on the server then redownload and recache them, I tried using post-check and pre-check together but that just permantly cached them, so when i change the image the only way it would display the new image is to just hit F5.
In Brief, how can i Cache images, on the client machine/ proxy cache and recache them when the modified date of the file has changed.
I want to show on one of my pages a slideshow type page. Basically I want it to show a selection of images from a folder and have the images scroll from right to left.
I want to write one program by visual studio 2008 (C# and ASP) that has web application and windows application.
I want to get clients images in web app(upload) and store them in DB (mysql) then send these images to windows app via web service (so i new web service, not web site). But i have 2 problems:
I have 2 ways to store images in mysql, first i should have BLOB field in DB -that it takes more space-, second i should save just name of each image in DB(so have image in one folder) -in this way i don't know how get image from clients and store them in that folder-. which one? Or what other? How (code) can i transfer image via web service(Byte[] or? ).
how to upload images to server(application/images folder) and retrive(display) from and on client PC for asp.net. its just for uplaoding logo directly to server folder and retriving from server to client. i am not getting server path on client pc for image.
I have a report that is created using Telerik Reporing 2010.You have the ability to export to PDF.One of the cells contains a standard hyperlink that when viewed from the report view works fine The cell contains this simple link<a href="http://site.com">link</a>What I would like to be able to do is maintain the hyperlink functionality when the report is rendered to PDF.Im assuming PDF requires something more than just HTML to render a link ?
I wanted to combine app_themes css files into one on the fly. I did so using Mads Cristensen technique. But now all elements that has background image defined through css (see picture) don't display image. I believe that is because css files are not relatively referenced anymore (../), but through axd file. I'm trying to fix this by changing reference to image files without success. I already tried background: url("~/App_Themes/44/images/myimage.gif") and this works for pages that combined css. But the problem is that there are other pages in this project that don't use this css combining and now they lost reference to background images.
I want to display images in the Gridview from the image folder in this way:
But without saving the image location in the Database (i.e;i want to do this using the System.IO)
I can fetch the names of all the images present in the "img" folder but my problem is i cant set the src of the <img> tag properly which would display the image here is what i did:
I am working on a ASP website, coded in VB.net, using Visual Studios 2010. I have a GridView that contains a template column currently. This template column is not the key and cannot be, since it does not exist in my database. (As far as I understand.) In my code behind, I calculate data based on information pulled from multiple columns of a database and currently build a string for my results. The results are stored currently in this empty template column. For example, 1 cell in the template column will currently display the string: "Red, Yellow, Green".
Instead, I would like to display multiple images in one cell to reflect the colors. These images are currently stored in "...Visual Studio 2010WebSites[My Website]images". The string can contain any number of colors, and colors can occur more than once. Is what I want to do possible, and if so how can I go about this? Here is an example of my database, if this provides useful. I do not want to have a column for each color in my GridView, and again a color can occur more than once.
Here i have problem in Bed management in HOspital Management System, how to display the the image in Grid view, when ever a Record has been entered in to the Database.if the entered person is MALE, "M"(Image) should be displayed,if FEmale is entred in to Database "F" ,Image should be added to Grid view.. and if i right click on the "M" or "F"(image), corressponding details should be come like when he joined, Place ,city ,address should come.
