Forms Data Controls :: Display Database Field Records As Image?
Dec 22, 2010
I have a database, one field is named "clicked" with values 0 or 1.
When the gridview is displayed I would like to show the value from the field "clicked" to be displayed as an image (example: instead of 0 to display and for 1 to display)
My query is that I have an sql field for image with db type "Image" , now I have successfully inserted some images in the form of bytes, now how to read those bytes of image from database and convert, show in gridview?
I know this might sound like a simple quesiton, but I am having problems allowing me to upload images along with other information (name, image, biography, wbsite links) to a sql server database, as well as showing images from the database using a drop list control feature. I am using [URL] for hosintg. VB language.
I have a DetailsView on the page and I have made one of the fields a TemplateField. In the EditItemTemplate and InsertItemTemplate I have a DropdownList that is databound to a table in my Sql Server database. I wanted to add an initial value to the DropdownList namely "- select -" .
I set the AppendDataBoundItems property to true and added the initial value as a ListItem.Markup of the DropdownList
This works fine for new input. The problem is however that the database already has records that were entered through a Windows Application and many of these records has a null value in this field and exceptions are thrown when I tried to open these records and the system tried to set the SelectedValue of the DropdownList.After some more searching I found this help
This now solved the problem of opening a record where the value is null in the database, BUT now the RequiredFieldValidator is not validating anymore to make sure that a databound item is selected for this field and not the initial value "- select -". So basically now it is not checking anymore to see if valid input has been entered for the DropDownList and it accepts "- select -" thus it acts as if the field is not a required field anymore.
In short what is required is that I want to make sure that the user enters a valid selection in the DropDownList, but it must also cater for old records that do not have this field entered yet so that those old records can be opened in the DetailsView .Opening Old records (with null in that field):When these old records are opened in the DetailsView the DropDownlist should show "- select -" when the value in the database is null.
Saving records (old or new records):When saving the record in Insert mode or Update mode the RequiredFieldValidator should show that a valid input is not selected if the DropDownList is still on "- select -".
I have a grid view attached to a custom query. The query selects data and the address data in the database is split into different fields like street_address1, mail_zip etc. etc. What I would like to do is display all the address data fields in my database in one field on the Grid View.
After saving image in db how can we retrieve it in gridview like thumbnail size image and by clicking on image in gridview its open as preview. How can we do this in asp.net using c#.
I'm new in storing and displaying image to database.I have learn how to store image into my database from a site and seems like it work, and the image is store as binary data.Now i try to retrieve and store it, using a site as a reference
My problem is i follow everything but in the end it seems the gridview do work as it shown some data from the database but for the image, only show a small red cross "unable to show image" sign there.
My storing data and uploading image to database code (Just in case)
i want the following in 1 div. say <div="topdiv">: i want to display on aspx page one image and its description fetched from database. i want to provide a next button at the side of it, onclick of this the next image and descriptn must be displayed without page being refreshed. i have another div (<div="divbottom"> which displays other information..
I am using a GridView Control to display multiple fileds with 0's and 1's.
I am using template fields where CheckBoxes are used.
Where exactly and how do I apply the Logic to get a checked CheckBox when field Value=1 and unchecked CheckBox when field Value=2 .Also some times to be able to write a YES where fieldValue=1 or NO where filedValue=0
I want to display image in detailview.. I used image datatype in the database instead of using varbinary. but the problem is.. detail view is not fetching the picture..
I am trying since more than 5 days to retrieve and display an image in a web page, no success so far.1. I have a table named image, with three fields ImageID, Img_data, Img_contenttype .2. I am able to display the ImageID as a link in my page.3. On clicking the link i am going to my viewImage.aspx?img=ImageID .This far it works ok. ImageID is passing in the query string.4. In this page imageID is being captured from query string and stored in ImageIdview int variable. viewImage.aspx has an image tag to display the image as below.
I have a aspx page where i have connected to a database using MS Access. I want to display total number of records in the products table & number of records the product Table holds inside.