custom control quick starts problem

whyulil · August 18th, 2004, 04:03 AM

Hi everybody
Im going through the quickstarts for asp.net. On the custom control section ive compiled the simple.vb and created a virtual directory and created a folder: /bin at the root of this VD and i have placed the .dll in this folder. I have placed the following .aspx file in the VD

<%@ Register TagPrefix="SimpleControlSamples" Namespace="SimpleControlSamples" Assembly="Simple" %>
<html>
   <body>
      <form method="POST" action="Simple.aspx" runat=server>
          <SimpleControlSamples:SimpleVB id="MyControl" runat=server/>
      </form>
   </body>
</html>

however when i load the page in the browser i get the following error:

Index (zero based) must be greater than or equal to zero and less than the size of the argument list.
Description: 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.

Exception Details: System.FormatException: Index (zero based) must be greater than or equal to zero and less than the size of the argument list.

Source Error:

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.

Stack Trace:

[FormatException: Index (zero based) must be greater than or equal to zero and less than the size of the argument list.]
   System.Text.StringBuilder.AppendFormat(IFormatProv ider provider, String format, Object[] args) +1232
   System.String.Format(IFormatProvider provider, String format, Object[] args) +65
   System.IO.TextWriter.Write(String format, Object arg0, Object arg1, Object arg2) +84
   SimpleControlSamples.simpleVB.Render(HtmlTextWrite r Output) +33
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +243
   System.Web.UI.Control.RenderChildren(HtmlTextWrite r writer) +72
   System.Web.UI.HtmlControls.HtmlForm.RenderChildren (HtmlTextWriter writer) +44
   System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTex tWriter output) +262
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +243
   System.Web.UI.Control.RenderChildren(HtmlTextWrite r writer) +72
   System.Web.UI.Control.Render(HtmlTextWriter writer) +7
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +243
   System.Web.UI.Page.ProcessRequestMain() +1929

any sugestions?

whyulil · August 18th, 2004, 04:34 AM

i solved it, my vb file had an error in it from where i was typing it in

the line
output.write("{1}, {2}, {3}" ......

was supposed to be
output.write("{0}, {1}, {2}" ......

doh! i was up for ages last night trying to fix that! mental note to self GET MORE SLEEP!