Forms Data Controls :: Using Javascript To Get The Value(Image) Of The Row With Out Postback?
Oct 29, 2010
I m using Javascript to get the value(Image) of the row with out postback. I want to pass that Image Name to the server and get that Image and want to display below the GridView.
I'm at my wits end on this one looked/Searched/Played/Experimented and I need your help if you can.This page is going to be primarily used on a mobile device using Win Mobile 5 Need to Accomplish:Prevent Postback(serverside) of Page using JavaScript (Postback's slow down the page on mobile device)
I have a GridView on a web form, which displays data fetch from database using Linq. When I update the GridView in a button event on server side everything works fine. Now I want to update the GridView from a JavaScript funciton call. Here is the code on the page.
The problem is that GridView1 never gets updated in IE. It works perfectly in Firefox. I can see the event was triggered by the Javascirpt call and I get correct dataset from database through debug. However the GridView never display the correct data. Is GridView handled different from regular web form control?
I have a gridview control that extends the default gridview. I have added an attribute called "hiddenSelectedValues" to to the gridview during the "PreRender" event and I have a private variable that points to the value of that attribute.
I have some javascript code that modifies the value of this attribute based on the user checking or unchecking checkboxes in the grid. I have confirmed that the javascript is indeed modifying the value of the "hiddenSelectedValues" attribute by using Firebug to see the change as it happens.
However, once a postback occurs, the grid looses the updated value of this attribute and I am unable to reference get the updated value on the server side.
How do I keep the value of an attribute changed by javascript on postback?
I am making one user control which is a simple textbox.In this i have one textbox and one image control.I m validating this
txtbox through javascipt.What i want to do is when user enters correct value, image of correct sign should get displayde and vice versa for wrong value.So how can i do this dynamically using javascript?(i.e. How to change image url through javascript).
I am working on an ASP.NET application (well supposed to be deploying it about 3 days ago) and my hidden fields are loosing value when the form gets posted back..
I am using them to store information i write using javascript and on my own machine this works fine but as soon as i deploy it on our server everything else works except these values are lost..
I am using the .NET AJAX control toolkit on the same page and have noticed my calander datepicker also looses the data..
I have checked using firebug and the data is definitely getting post to the server but is getting lost somewhere!
I wonder if I have any other method but a hidden field to post a JSON object to the server on full postback.
Imagine you have a form (with textboxes, checkboxes, etc) and you need to post a json string when the user post the form. This means, I would post all the form values + the json string but I can't come up with any solution but a hidden field.
i need a image control, who is able to convert the binary image data into image automatically, i find one which is paid control by telerik, but i need a freeware of it.
I have a simple question - I use update panel with custom server control inside. I call __doPostBack from javascript and RaisePostBackEvent on the server fires (I implement IPostBackEventHandler).This is client to server call. Could I return data back to the client (after this partial postback)? What is the best way to achieve this?
Just wondering if anyone has ever managed to find a way to have a datagridview image button column in a template field which display different images on different rows depending on some data element in the row. Our application needs to display a series of fees charged against an account column which will be either less then 500, 500 to 1000 or >1000. Some of those fees are charged at a full rate, others at a partial rate, and some are not charged at all. The user would like to see a simple 3-state graphic which would convey the simple info: full-charge, partial-charge, or no-charge. Sounds easy enough but I've not yet managed to find a way to do this. Every time I attempt to modify the individual cell's graphic it seems to want to change the graphic for all the rows.
I'm not even sure if this is the correct approach for this -
I have a DB that stores information, as well as a location to where images are stored
ie ProductImage = ~/ProductImages/BulkRetail.JPG
I'm using a repeater to list all the products, which works fine for all the labels I use but not for the image location. I'm using something like this, but it doesn't work:
I am trying to change the image url of an image button in my gridview. I cannot seem to be able to do this in the code behind. Is there a way I can do this through the image buttons controls?
i have an image and an imagebutton, they are inside a listview and get their imageurl from databinding, i would like to know, if maybe the databinding value is empty, instead of showing a big red x, is there anyway to maybe make it link to a default image when the value is empty instead?
I am new to .NEt, I am doing a classifieds website and tried to save the image in server,in a seperate folder and stored that address in MS access databse.when I wanted to display that image in a gridview,its not showing the image.
In the seperate column when Ia m trying to see the image location using bound field,its displaying C:websitesAzangouser_images j.jpg, but where as its not showing the image in the item template field.
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'm using varbinarymax.....IN SQL gridview image and setting the nullimage value doesn't this problem.. I'm looking for code that can make this lil miracle happen
& it doesn't really matter which way , whether the code says if image null then display this image from ~/Images/thispic.jpg or if i1 display this image from ~/Images/thispic.jpg for a little bit more insight into this I'm creating a legend for the database and the null has been used for displaying one pic so i'm after the 1 or visa versa to display another image.... and i'm not trying to upload pics to 1000 plus documents, and when i came at it from a sql angle tying 5 tables together the parent table ended up not sending the proper return. is this even possible or am i ahead of visual studio
