Web Forms :: How To Set TreeView LeafNode Image Programmatically
Oct 18, 2010I have a tree view which has files inj its leafnodes.
I would like to set the leafnodeimage programmatically as a function of the file extension.
I have a tree view which has files inj its leafnodes.
I would like to set the leafnodeimage programmatically as a function of the file extension.
When I declare the TreeView Nodes:
[Code]....
I can programmatically control the collapse and expansion of nodes:
[Code]....
When I use a SiteMapDataSource:
[Code]....
How do I now programmatically expand and collapse nodes? The code above doesn't work because the number of nodes is now 0.
I have a treeview on the left panel and the gridview in the content page. Both the treeview and the gridview bind to the same datasource and have the same functionality. For instance, clicking employer in the treeview and clicking the employer link in the gridview take you to the same page. All I want is when I click the employer link in the gridview, I want the gridview row command event to call the selectednodechanged event of the treeview, so that the treenode for employer has the selected node style and performs the function of hte selectednodechanged. i have tried treeview.nodes[0].select but this does not fire the selectednodechanged event.
View 3 RepliesI am creating and configuring multiple TreeView controls programmatically:
foreach (DataRow dr in ds.Tables[0].Rows) {
TreeView TV = new TreeView();
TreeNode newNode = new TreeNode();
[code]...
somewhere on the net I found very useful example of programatically databainding the treeview control (code blow). I use this treeview as menu bar in my masterpage. It works fine but with one exception: when I click the node of this treeview I'm redirected to the correct page but after page is reloaded my treeview is collapsed and node I chose just before is not highlighted. What to do to correct this problem. Do you know better examples of programatically databainding of the treeview control? Maybe it will be better to bind data to the sitemapdatasource and next to the treeview. Then I shouldn't have to worried about this?
[Code]....
Regards. Pawel
I have created one treeView which is loading node dynamically (populateondemand ). its working perfectly fine. But I want to show loading when its populating node from client view.
Note : - Only on click of image of the Tree view should display loading ..
I have a question that is very simple to answer, I have a treeview control populated by a sitemap file, what I want to do is to assign a different image to each node/leaf of the control, let me explain a little bit more, this what I have in my sitemap file:
[Code]....
So I know that a different image can be placed for root, parent, leaf and node on the code, but I want a different image for each leaf in the treeview... I know that the easy way to do what I want is to edit/add nodes in the control BUT I populated the control from a sitemap file, so is there a way to put a different image in each leaf of a treeview control being populated from a sitemap file?
I have a list of image names stored in a database, along with the id of the property they are associated with. I'd like to be able to display all of the images in a gridview and then allow the user to select the required image.
The problem I'm having is that the gridview is not displaying. I'm pretty sure it's something basic that I've missed, but can't for the life of me see what it is!
My gridview code in my aspx page:
[Code]....
My code behind (propId is the property id):
[Code]....
Is it possible to programmatically cache an image using VB code behind? If so, can someone lead me in the right direction?
View 14 RepliesHow to save image from another website programmatically? Using asp.net c# for example I wouldlike to create request on Google to search something for example beer and from search result save images using asp.net web application
View 2 RepliesPeriodically 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 am working on a localization project, some of the localized text are in graphics, some of the example graphics paths:
/en/images
/es/images
/fr/images
My web forms use <asp:image> controls and <img> tags (runat = sever) to point to graphics in /en/images. I need to a function to loop through all image control and point them to different paths based on the locale set at runt time. Which event should I override and how do I write it?
All my web pages inherit from a base page, I don't know if that makes differences.
Diplay Tooltip(image) on Treeview nodes Mouseover event
[Code]...
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 RepliesI know how you can set an tag's url attribute programmatically in c#, but it seems when I try to access the image element inside of a tag I cannot access it. The is residing in the <AlternatingItemTemplate>. NOTE: I am only having this issue inside the <AlternatingItemTemplate> Now the ListView tag is also databound.(this is probably why I cannot access, because it isn't guaranteed that it will even exist perhaps). How can I get around this so that I can display my images programmatically or is there a better solution?
<asp:ListView ID="ListView_Comments" runat="server"
DataKeyNames="ReviewID,ProductID,Rating" DataSourceID="EDS_CommentsList">
<ItemTemplate>
<tr style="background-color:#EDECB3;color: #000000;"> <td><%# Eval("CustomerName") %></td>
<td> <img src='Styles/Images/ReviewRating_d<%# Eval("Rating") %>.gif' alt="">
<br />
</td>
<td> <%# Eval("Comments") %>
</td>
</tr>
</ItemTemplate>
<AlternatingItemTemplate>
<tr style="background-color:#F8F8F8;"> <td><%# Eval("CustomerName") %></td>
<td>
<img id="rateImage" src="" alt="" runat="server" />
......
how to write Css for asp.net treeview by applying color and theme like (msdn website treeview)?
View 1 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 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.
I 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 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 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 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]....