Web Forms :: ImageMap Png / Jpg Images Not Rendering Properly

Jun 3, 2010

I have a page where an image does render properly in Chrome, Safari, Firefox unless I set the image type to .gif:

<asp:ImageMap ID="ImageMapTFS" runat="server" HotSpotMode="Navigate"

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[Code]....

If you'd like to see the page it's here:[URL]

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[Code]....

Protected Sub gettickvalue(ByVal sender As Object, ByVal e As EventArgs)
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I ImageMag i have set different hopspots. Can you tell how to set each hotspot a unique ID ?I have to pass these ID to some other controls so that some effect take place on mouse hover.presently, effect takes palce when mouse hovers on any part of the image. I want to restrict that effect only for hotspots.

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I have an imagemap with 3 hotspots. One downloads a .pdf, the other two redirect to two other websites. Now they want to be able to track who downloads the .pdf file with our reporting program (VisiStat). To do that, I have to add some code to the OnClick event of the .pdf hotspot.

[Code]....

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[Code]....

And I'm guessing that's where the VSLT code is at. I tried moving my code inline in the asp page, but it always says my sub is not a member of the page. What am I doing wrong? It seems like I'm just calling it or referencing it wrong.

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I'm working on Framework 3.5 in an asp.net project.

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"Microsoft
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I found few solutions like mentioned here http://support.microsoft.com/kb/967618 But thats for 2005. Surprisingly, already solved error for 2005 coming for 2008.

Non-negative number required.
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Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentOutOfRangeException: Non-negative
number required.
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Stack Trace: [ArgumentOutOfRangeException: Non-negative number required.
Parameter name: value]
System.IO.MemoryStream.set_Position(Int64 value) +10435528

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[Code]....

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<asp:ImageMap ID="imageMap" runat="server" ImageUrl="~/images/MapImages/map.jpg" HotSpotMode="PostBack" OnClick="imageMap_Click">

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{
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Adding an ImageButton to the ImageMap control as a child control. I am developing a map that will be contained some user-defined nodes. The user can click anywhere of the map to add the node to that location. X locations and Y Locations are stored in the database. Initializing the page all stored nodes will be created programmatically. My problem is that the created nodes are invisible. If I replace the ImageMap with a panel control then all dynamically created nodes will be visible but in this situation I cannot capture the X and Y locations.

protected System.Web.UI.WebControls.ImageButton
btn;
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So I have one of the following problems:

1. Adding child to the ImageMap Control OR

2. Capturing the mouse X and Y Locations in the panel

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Web Forms :: 2008 - Upload Images To Server (application / Images Folder) And Retrieve (display)

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Web Forms :: Retrieving Images From Database And Display As Thumbnail Images

Apr 29, 2010

[Code]....

i am using asp.net with c#, i have table images

shop nvarchar(50),
imgc image
imgo image

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Web Forms Routing Images / How To Use Absolute Url's To Images

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I'm using ASP.NET 4 Web forms routing, for example like this:

routes.MapPageRoute("page-browse", "{Language}/{Label}", "~/Default.aspx")
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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?

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HttpHandlers / Modules :: Cache Images - Page Takes To Long Due To Images Not Caching?

Mar 31, 2010

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.

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