getting image src on click on image in data list - asp.net

Question

I have datalist containing images.
I have bounded these images to datalist by taking image names from database.
I just want to get src [Path of image] which user clicks on datalist.
My datalist is as following:
<asp:DataList ID="dlImages" runat="server" RepeatColumns="4">
<ItemTemplate>
<asp:ImageButton ID="ImageButton1" Height="200px" Width="200px" runat="server" />
</ItemTemplate>
</asp:DataList>
and i have bounded it as follows:
Protected Sub dlImages_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DataListItemEventArgs) Handles dlImages.ItemDataBound
If e.Item.ItemType = ListItemType.AlternatingItem Or e.Item.ItemType = ListItemType.EditItem Then
CType(e.Item.FindControl("ImageButton1"), ImageButton).ImageUrl = "~/ScreenMasterImages/" & e.Item.DataItem("PageName") & ".jpg"
End If
End Sub
Please help me to get src of particular image which user clicks on datasource.

Answer 1

I'd go for this:
Protected Sub ImageButton1_Click(sender As Object, e As ImageClickEventArgs)
Dim btn As ImageButton = sender
Dim selImage As String = btn.ImageUrl.ToString
MsgBox(btn.ImageUrl.ToString)
'Shorter:
Dim selImage As String = sender.ImageUrl.ToString
End Sub
Complete Code for testing:
Public Class WebForm1
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not Page.IsPostBack Then
Dim ditems As New List(Of di)
For i As Integer = 0 To 10
Dim dii As New di
dii.d_Name = "x" & i
ditems.Add(dii)
Next
dlImages.DataSource = ditems
dlImages.DataBind()
End If
End Sub
Protected Sub dlImages_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DataListItemEventArgs) Handles dlImages.ItemDataBound
If e.Item.ItemType = ListItemType.AlternatingItem Or e.Item.ItemType = ListItemType.EditItem Then
CType(e.Item.FindControl("ImageButton1"), ImageButton).ImageUrl = "~/ScreenMasterImages/" & DirectCast(e.Item.DataItem, di).d_Name & ".jpg"
End If
End Sub
Protected Sub ImageButton1_Click(sender As Object, e As ImageClickEventArgs)
Dim btn As ImageButton = sender
Dim selImage As String = btn.ImageUrl.ToString
MsgBox(btn.ImageUrl.ToString)
End Sub
End Class
Public Class di
Public Property d_Name() As String
Get
Return m_d_Name
End Get
Set(value As String)
m_d_Name = value
End Set
End Property
Private m_d_Name As String
End Class
And the asp:
<asp:DataList ID="dlImages" runat="server" DataKeyField="d_Name" DataMember="d_Name" RepeatColumns="4">
<ItemTemplate>
<asp:ImageButton ID="ImageButton1" OnClick="ImageButton1_Click" Height="200px" Width="200px" runat="server" />
</ItemTemplate>
</asp:DataList>