hi,
i tried simple implementation of slide control on a fresh web application and it fails to work. maybe i am missing something. thanks in advance for your assistance.
here are the steps:
1- downloaded ajax toolkit and added controls to toolbox
2- added slideshow extender control on asp.net site master page
<asp:SlideShowExtender ID="bannerSlider" runat="server" AutoPlay="true" Loop="true" TargetControlID="bannerImage" SlideShowServiceMethod="GetSlides" />
3- Even though there is no reference to create the "target" control, i have added the image control right after it
<asp:Image ID="bannerImage" runat="server" />
4- Added the following imports and code in code file
Imports System.Web.Services
Imports System.Web.Script.Services
<WebMethod(), ScriptMethod()> _
Public Function GetSlides() As AjaxControlToolkit.Slide()
Dim nSlides(2) As AjaxControlToolkit.Slide
nSlides(0) = New AjaxControlToolkit.Slide("images/1.png", "New", "")
nSlides(1) = New AjaxControlToolkit.Slide("images/2.png", "Old", "")
Return nSlides
End Function
5- Build and run fails with exception that a script manager needs to be on page. Added script manager.
<asp:ScriptManager ID="scriptMgr" runat="server" />
6- Build and run fails with exception
Microsoft JScript runtime error: Sys.Net.WebServiceFailedException: The server method 'GetSlides' failed with the following error: <html>
<head>
<title>Unknown web method GetSlides.<br>Parameter name: methodName</title>
<style>
body {font-family:"Verdana";font-weight:normal;font-size: .7em;color:black;}
p {font-family:"Verdana";font-weight:normal;color:black;margin-top: -5px}
b {font-family:"Verdana";font-weight:bold;color:black;margin-top: -5px}
H1 { font-family:"Verdana";font-weight:normal;font-size:18pt;color:red }
H2 { font-family:"Verdana";font-weight:normal;font-size:14pt;color:maroon }
pre {font-family:"Lucida Console";font-size: .9em}
.marker {font-weight: bold; color: black;text-decoration: none;}
.version {color: gray;}
.error {margin-bottom: 10px;}
.expandable { text-decoration:underline; font-weight:bold; color:navy; cursor:hand; }
</style>
</head>
<body bgcolor="white">
<span><H1>Server Error in '/' Application.<hr width=100% size=1 color=silver></H1>
<h2> <i>Unknown web method GetSlides.<br>Parameter name: methodName</i> </h2></span>
<font face="Arial, Helvetica, Geneva, SunSans-Regular, sans-serif ">
<b> Description: </b>An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
<br><br>
<b> Exception Details: </b>System.ArgumentException: Unknown web method GetSlides.<br>Parameter name: methodName<br><br>
<b>Source Error:</b> <br><br>
<table width=100% bgcolor="#ffffcc">
<tr>
<td>
<code>
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.</code>
</td>
</tr>
</table>
<br>
<b>Stack Trace:</b> <br><br>
<table width=100% bgcolor="#ffffcc">
<tr>
<td>
<code><pre>
[ArgumentException: Unknown web method GetSlides.
Parameter name: methodName]
System.Web.Script.Services.WebServiceData.GetMethodData(String methodName) +536898
System.Web.Handlers.ScriptModule.OnPostAcquireRequestState(Object sender, EventArgs eventArgs) +213
System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +148
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75
</pre></code>
</td>
</tr>
</table>
<br>
<hr width=100% size=1 color=silver>
<b>Version Information:</b> Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.272
</font>
</body>
</html>
<!--
[ArgumentException]: Unknown web method GetSlides.
Parameter name: methodName
at System.Web.Script.Services.WebServiceData.GetMethodData(String methodName)
at System.Web.Handlers.ScriptModule.OnPostAcquireRequestState(Object sender, EventArgs eventArgs)
at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)