I'm trying to change an image's imageurl on an aspx asp.net c# page based on a variable from #var=1` (or 2, or 3, or 4)
I know nothing about javascript unfortunately which is what I've been told I need. Can anyone point me at a novice based script I can try to learn via implementation?
I have a Gridview that I build out of a Stored Procedure, in that Gridview I have a column with a Training Grade. I would like to have a Green Check Mark or a Red Check Mark (.gif) depending on the value of the grade. This is my code so far:
If e.Row.RowType = DataControlRowType.DataRow Then
I need to change the css and image path based on theme selected..
to achieve it, it required to add code in preinit event in very page to change the page.theme
is there a way where the same can be achieved in master page itself instead of using preinit event in all pages ??
in all pages in have used
MasterPageFile
="~/common/MasterPage.master"
Theme="default"
if (!IsPostBack) {
string[] filePaths = Directory.GetFiles(Server.MapPath("~/PMRF/"));
List<ListItem> files = new List<ListItem>();
foreach (string filePath in filePaths) {
string ext = Path.GetExtension(filePath);
foreach (GridViewRow gr in GridView1.Rows)
[code]...
i want the image of image button to change according to file extension . But its not working.
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?
View 5 RepliesI am planning to use grid view control, before was using datagrid, planning on switching to gridview:
<asp:TemplateField HeaderText="Deleted">
<ItemTemplate>
<asp:Image id=ImgDeleted runat="server" Height="13px" Width="21px" ImageUrl='<%# [code]...
I got a variable of type System.Drawing.Image and need to convert it to a variable of type byte so I can store the image in the database. Can someone show me how to do that in VB.NET code.
View 2 Replies I want to achive on functionallity like below.
I want to Dispaly image after image selection.so Users can see image at that moment.
I Used AsyncFileUpload(one of Ajac Control Toolkit Controls) to Uploading User's Image. this works well. But i want to change the image url of an image contorl to uploaded image url. how can i perform that? I put Image control in a Update Panel:
[Code]....
in C# code I wrote these:
[Code]....
But it does not work. Image is like Previous. Note that ImageOperations.ResizeFromStream() method resizes and saves the image to a specefic folder. actually I should trigger a Postback to Update the Update Panel but How to do that. I usedUpdatePanelNew.Update(); but it does not work!
I have a fileupload control in a contentplaceholder in a masterpage. I have to preview the image whenever I browse an image beside it in an imagecontrol.
My application is running on a different server .So I can't give the filepath of my local system.
Also I don't want to store the image in any location and i'm not supposed to use any session variable to pass it to generic handler.
is it possible to modify paypal sandbox test store name and image logo when customer is redirected to the paypal site. I am using express checkout workflow.
View 1 RepliesI am trying to put a default image in an Image control in asp.net and it should show that particular image on the page when no other image is assigned or no image available in Database.
View 1 Repliesin my aspx page i have a file upload control and one image component...i want to display the image uploaded in the image component..
View 4 RepliesI know how to display an image in gridview from image path in database. Now, I want to display an image in an asp.net image control from image path in database. Can anyone point me to a tutorial? I haven't been able to find one that explains how to do it when I don't know what the image path will be. The images are in the root folder.
View 35 RepliesI'm trying to change a row in detailsview based on a value in a coloum. Exactly the same as this example but in Detailsview: [URL]
View 3 RepliesI've got a variable that holds html for the body text in a cms I'm working on. I want to extract all image src tags from the variable so I can display these images.
View 2 RepliesI have usercontrol, I have develop menu there like this
[Code]....
This user control i put several pages. When i goto that perticular page i want change background image of menu item which related to that page.
Here is this thing which to me looks possible, but when I searched over the net I couldnt find anything.
I want to create a page where I can upload an image using any upload function and then display it. Now after diplaying it I want to select the hotspots for an image map. The coordinates of image map values are stored in a database.
Basically I want that to create image maps and hotspots I dont use any offline software, this work is successfully completed and working perfectly, but i want generate one identification where i click the hot spots position in image or CSS file Generate for user identifications, So how can i solve this problem.
I hope You are clear in that what I am looking for.
I 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 am in the process of moving all of the images in my web application over to a CDN but I want to easily be able to switch the CDN on or off without having to hard code the path to the images. My first thought was to add an HttpHandler for image extensions that depending whether a variable in the web.config (something like ) will serve the image from the server or from the CDN. But after giving this a little though I think I've essentially ruled this out as it will cause ASP.NET to handle the request for every single image, thus adding overhead, and it might actually completely mitigate the benefits of using a CDN.
An alternative approach is, since all of my pages inherit from a base page class, I could create a function in the base class that determines what path to serve the files from based off the web.config variable. I would then do something like this in the markup:
<img src='<%= GetImagePath()/image.png' />
I think this is probably what I'll have to end up doing, but it seems a little clunky to me. I also envision problems with the old .NET error of not being able to modify the control collection because of the "<%=" though the "<%#" solution will probably work.
Is there a way how to capture only the picture from webcam and store that image into the variable. But i dont want to use silerlight nor flash.But if is not possible then i do need the step how to use in flash. I dont need good quality.
View 2 RepliesI am new to web design so bear with me. I have an .aspx page with a user control at the top that is basically a container for an image. It serves as a banner spanning the entire page. The lower part of the page is a left and right sidebar with a main middle section.
The image is simply some text at the left layered over a background that fades from blue to white, top to bottom. Image size is 90 p. high by 1000 p. wide. How can I get this image to vary width withing the control along with the rest of the page when rendered under different screen resolutions?
below is .ashx file shows error on If context.Session("photo1") <> "" Then why? I need to display an image on button click that saved in database.
imgHandler.ashx:
Public Sub ProcessRequest(ByVal context As HttpContext) Implements IHttpHandler.ProcessRequest
If context.Session("photo1") <> "" Then
Dim bytes() As Byte = DirectCast(context.Session("photo1"), [Byte]())
context.Response.Buffer = True
[code]...
on display page on button click:
Session("photo1") = HttpUtility.HtmlEncode(ds.Tables(0).Rows(0)("applicant_photo").ToString())
Image1.ImageUrl = "../imgHandler.ashx"
Is is possible to update an image on an HTML page using the response stream of an ASP.NET Generic Handler? For example, if I have the following code on a handler: [URL]
public void ProcessRequest (HttpContext context) {
context.Response.ContentType = "image/png";
context.Response.WriteFile("~/images/test.png");
}
How can I call the handler in jQuery, using .ajax, and set an image on the page equal to the image that is returned by the Handler? I am ignoring the query string variable at the moment as I just want to get this working. Secondly, if I can do above, how can I loop through all of DIVs on the page that are of class "content", select a guid out of a hidden field to use as my query string parameter, and update the associated image within the same content DIV tag? A content div tag would look as follows:
<div class="content">
<asp:TextBox runat="server" Id="HiddenField_1" Value="C142E68F-B118-4565-9A9E-B2347F0B6D5B"/>
<img src="#"/>
</div>
<div class="content">
<asp:TextBox runat="server" Id="HiddenField_2" Value="GJ38AD23-B118-4565-9A9E-B2347F0B6D5B"/>
<img src="#"/>
</div>
I would like to have all the images updated on a periodic interval, so essentially, as a quick recap, I would need to have: A loop through all of my DIVs of class "content", occuring every n. seconds. Extractation the GUID from the hidden field. A call to my ASHX handler to get the updated image. Set the returned image to the corrisponding image on the page. Is this something that would be difficult to achieve? If not, what would I need to do to make this function in the above manner?
I am really new at this. I have a site that I would like to display a certain image (a colored flag) based on an entry in the database. I have a folder called flag_images, I'm using VB, and MSSQL Server 2005. I have never done anything like this. There are 4 images total. They are green.gif, yellow.gif, red.gif, and black.gif. The database table is called tblflag. There are three columns. ID (int), time_set (datetime), and flag_color (nvarchar).
I would like to display the green flag if the column flag_color is equal to green and so on for the other colors. Only one flag will be displayed at a time.
