Forms Data Controls :: Cannot Display Images In GridView?
Mar 9, 2011
I'm making a web app that allows a user to return images from a SQL database and display said images in a GridView control (asp.net, c#). Here is my code behind (in generic handler):
[Code]....
Line six (6) causes visual studio to throw the following error: ullReferenceException was unhandled by user code. Then below that it says:Object reference not set to the instance of an object.
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.
I'm trying to display images in a gridview, but after following the examples of maybe 7 different tutorials I still haven't succeded. There are always some things that go unexplained. My latest attempt is according to this tutorial:
[URL]
Problem No1: what exactly should I write in my ashx-file? Following the example in the tutorial this is the code so far:
I have two columns in database name of the image(varchar) and image(BLOB) and i have inserted images into database.now i need to display on grid-view control. am banging my head since one day by searching and i have used handler but no use.
Import Data from Excel to Gridview ([URL]) By following the code as mentioned in the post i am able to get excel sheet values and c display them in gridview.
But I want to read Images from Excel sheet and display them in Gridview and also insert them in sql server..
If in one form upload image form we enter ID in textbox againts ID label and upload an image file using fileuploadcontrol when we click on upload button image save in DB and in next form view image when we enter ID in textbox againts label enter ID. Images show in GRIDVIEW having columns (ID,images) ...
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?
Here's my situation. I have a table called Inspections, and another table called Images. The Images table takes the ID of the Inspections table as a foreign key, so the Images tables contains multiple images with the same foreign key value.I'd like to be able to enter an integer of the ID number from the Inspections table and have it return all the records from the Images table with the foreign key that matches this ID, and then load them into a gridview. When I tried using the .ashx Handler approach that I found at this link
I 'm populating the images in the listview control from the database.... but now i want to get only broken images from the server(eg images which are not showing, cross box) so my user can fix those images in the server. I want to put a checkbox in the search criteria so either they can see all the images from the table or only broken images.Is there any way of doing that from asp.net or with javascript.
I want to display images that a user uploads in a list view so that all the images a user uploads will appear as at the moment no images appear using the list view but the xml data source file gets updated. I am using VS 2008 usinf asp.net, vb and xml codes. What would I need to do so that the images appaer in the list view.
My application stores images in a particular directory, and I would like to display these images (in rows and columns) on a webform, with the "Remove" link on each of them in order to delete some of them if necessary.
Are there any links that may point me to the right direction? Most of the links I found dealt with displaying images that came from a string stored in a table.