asp:image: change image dynamically : Image « Asp Control « ASP.Net






  1. ASP.Net
  2. Asp Control
  3. Image

asp:image: change image dynamically

<%@ Page Language=VB Debug=true %>
<script runat=server>
Sub Page_Load(ByVal Sender as Object, ByVal E as EventArgs)
    If Not IsPostBack Then
        imgToView.AlternateText = "Image 1"
        imgToView.ImageUrl = "http://www.java2s.com/style/download.png"
    End If
End Sub
Sub SubmitBtn_Click(Sender As Object, E As EventArgs)
    imgToView.AlternateText = ddlImages.SelectedItem.Text
    imgToView.ImageUrl = ddlImages.SelectedItem.Value
End Sub
</SCRIPT>
<HTML>
<HEAD>
<TITLE>Creating a Basic Image Control</TITLE>
</HEAD>
<form runat="server">
<BR><BR>
Select an image to display:<BR>
<asp:dropdownlist
    id="ddlImages" 
    runat=server 
>
    <asp:listitem text="Image 1" value="http://www.java2s.com/style/download.png"/>
    <asp:listitem text="Image 2" value="http://www.java2s.com/style/logo.png"/>
    <asp:listitem text="Image 3" value="http://www.java2s.com/style/download.png"/>
</asp:dropdownlist>
<BR>
<asp:linkbutton 
    id="lnkbutOK"
    text="View Image"
    onclick="SubmitBtn_Click" 
    runat="server"
/>
<BR><BR>
<asp:image 
    id="imgToView" 
    runat="server"
/>
</Form>
</BODY>
</HTML>








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2.Changing the ImageUrl property dynamically (VB)