Dynamically load Image Map coordinates

[BryanM]

I have an asp.net site that uses a dropdown listbox to select 1 of 6 different images to be displayed at one time. Changing the image is working fine. But I need to define and use a different set of coordinates for each image. One image could have as few as 5 regions, while another could have up to 100. The coordinates will be hardcoded but I can't seem to figure out how to load different sets of "PolygonHotspot" based on which image is displayed. I thought it was going to be as easy as assigning an ID to 100 different hotspots, then turning them off or on and defining the coordinates based on the image name. That seemed like the perfect solution .. until I found out that the PolygonHotspot doesn't have an ID property.

Any help would be GREATLY appreciated! Please email me at bry at herp dot com

Thank you in advance,

Bryan Mohr

[BryanM]

Just for reference (even though this doesn't work), here is the code that I was hoping would work:

    Protected Sub cbImageCombo_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles cbImageCombo.TextChanged
        Dim strImageName As String = cbImageCombo.Text
        Dim strImageText As String = strImageName
 
        strImageName = "~/Images/" & strImageName.Replace(" ", "_") & ".JPG"
        imImage.ImageUrl = strImageName
        imImage.AlternateText = strImageText
 
        ' First Make all Hotspots inactive
        HS001.HotspotMode = "Inactive"
        HS002.HotspotMode = "Inactive"
        HS003.HotspotMode = "Inactive"
 
        ' Next activate the defined hotspots for the currently selected image
        If (strImageText = "Spinal Cord Side") Then
            HS001.HotSpotMode = "PostBack"
            HS001.AlternateText = "Top Vertebrae"
            HS001.Coordinates = "118,16,127,11,135,4,142,4,154,11,155,16,154,17,143,15,139,15,132,22,118,17,118,17"
            HS001.PostBackValue = "Top Vertebrae"
 
            HS002.HotSpotMode = "PostBack"
            HS002.AlternateText = "Second Vertebrae"
            HS002.Coordinates = "118,32,131,24,131,22,139,15,154,17,156,32,141,25,138,25,137,27,137,29,121,38,119,36"
            HS002.PostBackValue = "Second Vertebrae"
        End If
 
        If (strImageText = "Skeleton Front") Then
            HS001.HotSpotMode = "PostBack"
            HS001.AlternateText = "Skull"
            HS001.Coordinates = "120,14,126,7,134,3,138,3,146,6,151,11,154,17,154,27,152,39,148,41,148,49,142,53,132,53,125,49,125,43,124,39,121,35,121,32,119,28,119,16"
            HS001.PostBackValue = "Skull"
        End If
 
        If (strImageText = "Muscular Man Back") Then
            HS001.HotSpotMode = "PostBack"
            HS001.AlternateText = "Lateral Deltoid - Right"
            HS001.Coordinates = "172,82,180,80,187,79,189,80,194,84,198,89,200,95,201,99,202,107,201,115,192,106,185,98,184,90,178,88,174,85"
            HS001.PostBackValue = "Lateral Deltoid - Right"
 
            HS002.HotSpotMode = "PostBack"
            HS002.AlternateText = "Posterior Deltoid - Left"
            HS002.Coordinates = "100,97,101,114,86,128,81,126,90,107"
            HS002.PostBackValue = "Posterior Deltoid - Left"
 
            HS002.HotSpotMode = "PostBack"
            HS002.AlternateText = "Levator Scapulae - Left"
            HS002.Coordinates = "109,75,127,64,132,57,130,73,112,76"
            HS002.PostBackValue = "Levator Scapulae - Left"
        End If
    End Sub