Web Forms :: Generate True Thumbnail On Hyperlink Onmouseover?
Jul 16, 2010
I have this question posted on Expert Exchange here is a link to that:
[URL]
But here it is in a nut shell.
I have a hyperlinks residing in a gridview some links are to files others to images. That gridview is set in a repeater.
What I'm looking to achieve is when the mouse hovers over a hyperlink that point to a jpeg, jpg or gif I would like to generate a thumbnail to show the user. when mouse leaves the hyperlink get rid of thumbnail.
I stared here:
[URL]
I'm trying to use the onmouseover and the handler found above but no luck.
I have a ModalPopupExtender control inside accordin control, users can add images, that I sotre the path in database(sql server) and the actual image in physical address inside web server,I automatically resize the image to thumbnail size in C#, when users first connect to the site,the see the thubmnail version of the image,which is much faster to download,and by clicking the thubnail, the hidden asp:pnael is shown with imzge in full size, I use javascript to unhide the panel and also change the image source to actual image,everything works fine in IE, but in Firefox and Chrome, the first time user clicks on thumbnail can not see the full size image,only after couple of time, they see the full size image? what could be the problem?
I am using asp.net ,C# what is the best way to achieve this?
i just made an onmouseover and onmouseout event using javascript and called the functions from the asp image tag like <contol.....onmouseover="thissss()" /> my question is why do i need to write javescrit for this? have heard so much praise of asp.net and c#! is there a way that is code to handle these events for all types of object using the .cs file (c#) directly?? i would assume the code will be under the page load event.
note:-
do not give answers assuming that the asker is a new bee consider him a completely un-educated person when it comes to coding )
It took me a little while to figure this out, but the AllowPaging="true" on the FormView seems to be the culprit. I don't have much experience paging from a FormView, but for this requirement the customers wants this kind of UI.I have a FormView with DefaultMode="Edit", which is bound to an EntityDataSource. One of the entity's properties, "ExternalID", determines whether some of the other properties in the entity are read-only. For example, if IsExternal==null, the FirstName, LastName, and Email fields should be rendered as TextBoxes. If IsExternal!=null, the 3 properties should be rendered in Label controls.
I am successfully using the well-documented Page_Load technique to apply onmouseover behavior to ImageButtons that behave as normal links or buttons. It works like this:
PROBLEM: I have a Login control with Username, Password, and an ImageButton named "LoginButton" for the Login Button. I want to apply the same onmouseover behavior to the Login Button as I do other buttons on the page. When I try to use the same programmatic syntax as above, I get this error message:
The name 'Loginbutton' does not exist in the current context
I am currently learning dotnet (having recently learned ASP Classic) and i have come across the Menu Items and their ability to be based on the sitemap.
I love this idea and would like to use it on my demo site that i am building. However i cant seem to find a way to replace the links with images. I did have a look on google and noticed people wee using the ImageUrl method but said you have to code that yourself. I dont know how to tell it that imageUrl is ... well an image URL.
And then, should this be doable, is it possible to assign an onhover/onmouseover event to change the image?
I have icons in a gridview and when the user hovers over them the mouse pointer turns to hand and a tooltip is displayed. This works fine in IE 8. I'm testing in IE 9 and it doesn't work.
Code: If e.Row.Cells(columnIndex).Controls(0).Visible Then Dim iControl As System.Web.UI.WebControls.Image = e.Row.Cells(columnIndex).Controls(0) iControl.Attributes.Add("onmouseover", "this.style.cursor='hand'") End If
I am currently highlighting a row in a radgrid using OnMouseOver. I would like to know if it is possible to use OnMouseOver to select the row rather than highlight it.
Alternatively, I would like the highlighted row to remain highlighted if the radgrid loses focus, such as when a confirmation box pops up.
i am doing a web page in asp.net which holds logos of members in the page in a grid view.each cell is a link to the relevant member's website.
i want to popup an image of the member's website when the mouse is hovered over a certain cell. for this a snapshot of the website is stored in a database an for the onmouse over event i want to make it pop up.
i want to know whether using ajax or JavaScript is more appropriate for this problem.
I want to tuckle some issues about using javascript. I was using gridview control to display all my comments that are saved from the database. What I want is when the user hovers the mouse on each comment it will highlight the background which already solved and want to show one of the div element right there with close button and get the text value of one label control inside the <td> element during mouseover event. After getting the text value of that label during onmouseover I want to display it in another div element and I want to get the text value of another label control which is located outside the gridview during onmouseover event as well. Here are the details below:
HTML Layout:
<asp:Label ID="Label4" runat="server" Text=' <%#Eval("ID") %>'></asp:Label> //I want to get the text value of this control <div id="test"></div> //here I want to put the text value of the name label control after getting it during onmouseover <div id="Username" style =" margin-left :100px; width :1000px"> <asp:GridView ID="gvParentGrid" runat="server" Width="395px" AutoGenerateColumns="false" GridLines="None" BorderStyle="Solid" BorderWidth="0px"
[CODE]...
Summary to tuckle some issues.
1. I need the Close div to show in every row of the gridview when hover because as of now using that code above would only show the Close div on the first row but if you move your mouse to another row the Close div row still remains showing on the first row which should supposed to transfer or show in another row when moving the mouse to another row. 2. I need to get the text value of the name label which is located inside the <td> element of the gridview and display it in div test during hover. 3. I need to get the text value of the Label4 which is located outside the gridview during onmouseover as well.
I know that this issue has been raised on so many occasion and I am stuck with two options, one being to create a thumbnail folder whenever a picture is uploaded to the server, here I am using a folder with so many subfolder, upon saving on the server folder, I pass in the subfolder name and the file name, to retrieve the image i need the two parameters but also the resize sizes and as such this measure is almost abosulte.
the other way is to resize on the fly when the user is requesting the picture, this is where I have been stuck on and need some guidance. and here is the code
I have an Image control on my page that should display a thumbnail preview of the actual image. The URL property of this control is assigned through the code-behind using:
Before moving my files to another location, this assignment works fine (The files used to be located inside the application folder). But after moving all files to another drive in the same server, the images don't seem to render any longer. I can upload/download files fine but they just won't display as thumbnails on the page.
i am uploading images in database and creating thumbnails too. but thumbnails has been storing as same name, i cant understand where is the problem, May you pls help me about this, my thumbnail creation code is
I've got a series of thumbnail images in a GridView control as well as a Template field for a larger version of the image when the thumbnail is clicked.I'd like to be able to click a thumbnail and update the larger image in the gridview with the appropriate new image.What would be the best (easiest for a newb!) way to do this?I'd like to avoid a whole page refresh and keep it to just the image.
