Web Forms :: How To Add Images To Treeview
Jul 3, 2010i would like to add images for a tree view like for root node one image and for child node other like that i would like to add different images for nodes..
View 1 Repliesi would like to add images for a tree view like for root node one image and for child node other like that i would like to add different images for nodes..
View 1 RepliesHow to Display the treeview control with multiple images(each link should be with one image) instead of + images in asp.net
View 2 Repliesi hv added a treeview control on the .aspx page, when i try to browse it from web server, the image is showing as broken image, where the image link is showing like this [URL]
View 1 RepliesI've got a treeview inside an updatepanel. Currently I'm developing on a dev server through a remote connection, when I view the page from the dev server itself, it works. The expand/collapse images display fine. When I view the page from my machine's browser (same url, same browser) it doesn't display the images.
I've added custom images using the CollapseImageUrl/ExpandImageUrl properties, again it works from the server, but not from my machine. The actual rendered html differs. The page also contains some asp:Image controls which work fine in both browsers.
I have a databound TreeView on an aspx content page. I selected the News ImageSet collection for this control. When I render the control locally, the images appear fine. Deployed on the same machine (yes I know I probably shouldn't develop on the server, but it's my server) the images are all broken. I removed the ImageSet attribute and it still rendered with broken links.
The environment is Windows XP SP 3, ASP.NET 4.0. Any reason why the the WebResource.axd would suddenly break outside of the Contoso world?
I've built a TreeView in ASP.NET 3.5 and it works great, except the expand and collapse images (which are 20px by 20px) do not align properly with the text in the nodes. Below is a screen shot of the applicable tree, with all items selected to allow you to see where the items are lined up. I need the text to be vertically centered (by one means or another) so it lines up with the center of its expand/collapse image.
I've tried numerous tricks to make this happen, including CSS, but can't seem to find the right technique.
I've got a Treeview inside an Updatepanel, currently I'm developing directly on a dev server with a remote connection to it. I've set the CollapseImageUrl and ExpandImageUrl properties and when I view it on the dev servers' browser it renders fine.
It produces:
[code]....
Periodically a rash of occurrences of the following error happen. I believe they're the result of hack attempts. Whether that's the case or not, my question is how can I handle the error? I want to avoid unhandled exceptions. The TreeView control is just
a standard .Net TreeView control, not a custom one. If you suggest a code solution, please code it in VB.Net as that's what I'm using.
Message: Input string was not in a correct format.
Stack Trace:
at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
at System.Web.UI.WebControls.TreeView.LoadPostData(String postDataKey, NameValueCollection postCollection)
at System.Web.UI.WebControls.TreeView.System.Web.UI.IPostBackDataHandler.LoadPostData(String postDataKey, NameValueCollection postCollection)
at System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
I have a treeview which will be generated dynamically which need to be displayed on left side and when user clicks on a node it need to open a page on the right side of the same page. and each node has different aspx page. so whenever user selects a node the page details should be displayed on the right side .we can use an iframe on the page which will display the different pages clicked on the node.Is there any alternative i can use to display different pages based on the user selection on the right side without using iframe.
View 5 RepliesCode to drag and drop a TreeNode to another control or tag such as Div or even another TreeView.
View 1 Replieshow to write Css for asp.net treeview by applying color and theme like (msdn website treeview)?
View 1 Replieshow 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.
View 5 Repliesi 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?
View 3 Replies[Code]....
i am using asp.net with c#, i have table images
shop nvarchar(50),
imgc image
imgo image
iam saving images in a database but while retreving it is showing blank images. i want to display as thumb nail images
I'm using ASP.NET 4 Web forms routing, for example like this:
routes.MapPageRoute("page-browse", "{Language}/{Label}", "~/Default.aspx")
So the webadress could look like: http://localhost/mywebsite/eng/home
In the root of my website I have a folder "Images".
Image display works when I'm in the root of my website, e.g. by using http://localhost/mywebsite/default.aspx
But when using routing it doesn't work, because the image relative url will look at http://localhost/mywebsite/eng/images instead of http://localhost/mywebsite/images
Is there a way to prevent this using ASP.NET 4 Routing mechanism? Or is the only way to use absolute url's to images?
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.
View 8 RepliesI 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? ).
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.
View 1 RepliesI'm using an HttpHandler to display images from memory ... which is working fine.The image is displayed as a .png format in a popup window.My problem is printing the image from IE7 Web Browser using the popup menu displayed after doing a right-click, selecting 'Print Picture'.A blank page is being printed ... i.e. No Image, just the url and date on the bottom of the page and the page number on the top.I have also tried this with the image formatted as .jpg, with the same result.
View 6 RepliesI know that HTML is client sided and ASP.NET is server sided. The question is should I use HTML or ASP.NET Images and whats the difference?What are the properties of ASP.NET images and what are of HTML images.
View 3 RepliesI'm developing a new aspnet website with 200k images in a /Images/ -folder.Many operations in Visual Studio is slow because it access the folder, adding a web service takes 10 minutes.The images is not checked into scm (svn).ow should I structure the tree of code, to improve performance in VS?It would also be neat if not all developers needed to copy 200k images to their local disk to be able to develop on the site.
View 5 RepliesI have a treeview that i fill from a database, when i add a new row to a database, the treeview is not updating.Even the reload of an internet explorer doesn't help, It does updates only after i press stop debugging button and turn it on again.Here is the code:
[Code]....
[Code]....
I am using treeview to display records from 4-5 SQL Tables. Currently I am using 4-5 different stored procedures to retrieve data based on a dropdownlist value.The tree is loaded everytime the value in the dropdownlist is changed by the user.
Is there a faster way to load treeview as everytime a new selection is made, the treeview is binded again. Or is there any way I can optimize the actions I am performing now to bind the treeview?
I am using Tree view to display Categories & SubCategories under it. It's working fine. to create a Tree View I had used,
http://aspalliance.com/732.
Problem is that I want my TreeView to be expanded. How can one do that? Moreover, From another page when I click a Product, I want that in treeView that Category(under which Product falls), should be expanded & node(ie selected Product) should be highlighted.