[ajaxpro] How to Add Image to ASP.NET webcontrol Panel using AJAX

[Kiran K]

hi ,

               I am new to Ajax ... i am using ASP.NET  i am trying to do add a image to a Panel(ASP.NET web control)

               but how to handle response.value i am not getting...can u guide me ... thanks in advance

              well here is my code snippet

 

<Ajax.AjaxMethod()> _

Public Function RetriveImageFromDB(ByVal imageid As Integer)

Dim image As System.Web.UI.WebControls.Image = New System.Web.UI.WebControls.Image()

image.ImageUrl =

"ImageGen.aspx?ImageId=" + CStr(imageid)

Return image

End Function

my .aspx page

 

<%

@ Page Language ="VB" AutoEventWireup="false" CodeFile ="UploadImageToDB.aspx.vb" Inherits="UploadImageToDB" %>

 

<!

DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">

<

html xmlns="http://www.w3.org/1999/xhtml " >

<

head runat="server">

 

<title>Upload Image</ title>

 

<script language=_javascript_ >

 

function ShowImage(intimageid)

{

var response = UploadImageToDB.RetriveImageFromDB(intimageid);

response.value;

}

</script>

</

head>

<

body bgcolor="#fffff">

 

<form id="form1" runat="server">

 

<table width="100%">

 

<tr><td colspan="2" align=center ><font face="arial"><strong >Upload/Retrive Image from Database </strong ></font> </td ></tr>

 

<tr><td colspan="2" height=10></td ></tr>

 

<tr><td colspan="2" align=center>

 

&nbsp; &nbsp; &nbsp;

 

<asp:Label ID="lblSuccess" runat="server" Text="Image uploaded sucessfully" Visible="False"></ asp:Label><br />

 

<span style="font-size: 10pt; font-family: Arial">< strong>Upload Image :</strong > </span>

 

<input id="txtUploadImage" runat="server" type ="file" /></td></tr >

 

<tr><td align =Center><asp:Button ID="btnUpload" runat="server" Text="Upload Image" />

 

<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="txtUploadImage"

 

ErrorMessage="Upload the file"></asp: RequiredFieldValidator></td></tr >

 

<tr><td colspan="2" height=5></td ></tr>

 

<tr><td colspan="2" align=center>

 

<asp:datagrid id="dgrdImageDetails" runat="server" Width="50%"

 

AutoGenerateColumns="False" Visible ="False">

 

<Columns>

 

<asp:BoundColumn DataField="ImageId" HeaderText="Image"></ asp:BoundColumn>

 

<asp:TemplateColumn>

 

<ItemTemplate>

 

<asp:HyperLink ID="hyplViewImage" runat="server" href="#">View Image</asp: HyperLink>

 

</ItemTemplate>

 

</asp:TemplateColumn >

 

</Columns>

 

</asp:datagrid>

 

</td>

 

</tr>

 

<tr><td colspan="2" height=5 align=center >

 

<strong><span style="font-size: 10pt; font-family: Arial">Image</span ></strong></td></ tr>

 

<tr><td colspan="2" align=center>< asp:Panel ID="Panel1" runat="server" Height="50px" Width="125px">

 

</asp:Panel></ td></tr>

 

</table>

 

</form>

</

body>

</

html>

 

             
--
Kiran R Kawalli

mob no:9880281339

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