User-440768323 posted
Hello everyone,
I am trying to use a custom Text Captcha inside a UpdatePanel. It works fine on localhost, but when I deploy it to the webserver it is not displaying. I am using VS 2010 - vb.net for code and asp.net 4.0 and IIS 6.0 is on the webserver.
Here is my code:
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="MessageBoard.aspx.vb" Inherits="ContractApplicationPublic.MessageBoard" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>
<%@Import Namespace="System.Data" %>
<!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 id="Head1" runat="server">
<title>MWRDGC Contract Application</title>
<link href="css/xmlMessageBoard.css" rel="stylesheet" type="text/css" />
<style type="text/css">
.style2
{
color: #69ACD2;
font-weight: bold;
border-left-color: #9D9DA1;
border-right-color: #C0C0C0;
border-top-color: #9D9DA1;
border-bottom-color: #C0C0C0;
padding: 4px;
background-color: #FFFFFF;
}
.style3
{
font-size: small;
font-weight: bold;
background-color: #FFFFFF;
}
.style4
{
font-weight: bold;
}
.style5
{
font-size: small;
}
.style6
{
color: #3366FF;
font-weight: bold;
border-left-color: #9D9DA1;
border-right-color: #C0C0C0;
border-top-color: #9D9DA1;
border-bottom-color: #C0C0C0;
padding: 4px;
}
.style7
{
background-color: #FFFFFF;
}
.style8
{
font-size: small;
background-color: #FFFFFF;
}
.style10
{
width: 94px;
}
.style11
{
width: 100%;
}
.style12
{
height: 24px;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div id="PageHeading">MWRDGC Contract Question Board</div>
<br />
<br />
<script src="Scripts/jquery-1.4.1.js" type="text/javascript"></script>
<table class="style11">
<tr>
<td class="style12">
<asp:Label ID="Label2" runat="server" ForeColor="#0B73B5"
Text="Contract Number:" Font-Bold="True" Font-Size="Medium"
style="text-align: left"></asp:Label>
<asp:Label ID="lblContractNumber" runat="server" ForeColor="Black"
Font-Size="Medium"></asp:Label>
</td>
</tr>
<tr>
<td>
<asp:Label ID="Label3" runat="server" ForeColor="#0B73B5"
Text="Contract Description:" Font-Bold="True" Font-Size="Medium"></asp:Label>
<asp:Label ID="lblContractDescription" runat="server" ForeColor="Black"
Font-Size="Medium"></asp:Label>
</td>
</tr>
</table>
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<div id="CommentForm">
<center>
<table>
<tr>
<td valign="top" align="left" class="style10">Your Question:</td>
<td>
<asp:TextBox ID="txtQuestion" runat="server" Width="350" CssClass="CommentInputBox"
Height="71px" TextMode="MultiLine" />
</td>
</tr>
<tr>
<td valign="top" align="left" class="style10">
</td>
<td>
</td>
</tr>
<tr>
<td valign="top" align="left" class="style10">
</td>
<td>
<div id="CaptchaLabel">
<asp:Image ID="lblResult" runat="server" ImageUrl="GetImage.aspx" ImageAlign="Left" AlternateText="" />
</div>
<div id="CaptchaVerify">
Verification Number<br />
<asp:TextBox ID="txtCaptcha" runat="server" Width="120" CssClass="CommentInputBox" />
</div>
</td>
</tr>
<tr>
<td align="right" colspan="2" class="BottomCell">
<asp:Button ID="bttSubmitQuestion" runat="server" Text="Submit Question" OnClick="bttSubmitQuestion_Click"
CssClass="CommentButton"
onclientclick="return confirm('Are you sure you want to SUBMIT the current question?');return false;" />
</td>
</tr>
</table>
</center>
</div>
<asp:DataList ID="DataList1" runat="server" RepeatLayout="Flow">
<ItemTemplate>
<span class="style6">Question:</span>
<asp:Label ID="PostQuestionLabel" runat="server"
Text='<%# Eval("PostQuestion") %>' />
<br />
<br />
Posted By: User<br />Posted on:
<asp:Label ID="PostDateTimeLabel" runat="server"
Text='<%# Eval("PostDateTime") %>' />
<br />
<asp:Image ID="Image3" runat="server" ForeColor="#0B73B5"
ImageUrl="~/Images/Horizontal_Line.jpg" />
<br />
<br />
<span class="style2">Question Reply:</span>
<asp:Label ID="CommentMessageLabel" runat="server"
Text='<%# Eval("CommentMessage") %>' />
<br />
<br />
Posted By: Administrator<br />Posted On:
<asp:Label ID="CommentDateTimeLabel" runat="server"
Text='<%# Eval("CommentDateTime") %>' />
<br />
<br />
</ItemTemplate>
</asp:DataList>
<asp:ScriptManager ID="ScriptManager1" runat="server"
EnablePartialRendering="true" />
<asp:Label ID="lblCompanyID" runat="server" Visible="False"></asp:Label>
<asp:Label ID="lblContractID" runat="server" Visible="False"></asp:Label>
<asp:Label ID="lblUserName" runat="server" Visible="False"></asp:Label>
</ContentTemplate>
</asp:UpdatePanel>
<asp:UpdateProgress ID="UpdateProgress1" runat="server">
<ProgressTemplate>
<div id="ProgressBar" style="top: 150px;">
<img alt="Loading" src="images/ajax-loader.gif"
style="width: 32px; height: 32px" />
</div>
</ProgressTemplate>
</asp:UpdateProgress>
</form>
</body>
</html>
Private Function GenerateRandomCode() As String
'Generate a random number for the CAPTCHA image
Dim s As String = ""
For i As Integer = 0 To 5
s = s + Me.rand.Next(10).ToString()
Next
Return s
End Function
Public Sub SetCaptcha()
'Create a new captcha image
Me.Session("CaptchaImageText") = GenerateRandomCode()
'append current date to image url to assure loading of new image
Me.lblResult.ImageUrl = "GetImage.aspx?" + DateTime.Now.ToString()
End Sub
Partial Class GetImage
Inherits System.Web.UI.Page
Private Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
Response.Cache.SetCacheability(HttpCacheability.NoCache)
'Create a CAPTCHA image using the text stored in the Session object.
Dim ci As New CaptchaImage.CaptchaImage(Me.Session("CaptchaImageText"), 200, 50, "Century Schoolbook")
Me.Response.Clear()
Me.Response.ContentType = "image/png"
ci.Image.Save(Me.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg)
ci.Dispose()
End Sub
End Class
also have attached to project a CaptchaImage.dll
