It is complaining because you are calling this property before any validations have been done for the page. You can't call IsValid before you call Validate.

>Cathi,
>
>I got it working - however there is a slight dilemna.
>
>I added a test for
>

>Debug.Assert(Page.IsValid == true);
>

>between InitializeComponent() and base.onInit(e) in the OnInit() method of my web form.
>
>As I hit this statement, in the debug window I see the error I mentioned before already set in Page.IsValid. Howver, Debug.Assert complains that
>

>Page.IsValid cannot be called before validation has taken place. It should be queried in the event handler for a control with CausesValidation=true or after a call to Page.Validate
>

>
>If that is the case, why am I seeing Page.IsValid to be in error? Or is this just the default state of Page before being validated?
>TIA,
>Doug
>>In order to see trace output in an ASP.NET application, you need to turn on tracing, which is typically done at the application-level in the web.config file. The trace setting can be found within the trace element:
>>
>>

>><trace enabled="false"
>>requestLimit="10"
>>pageOutput="false"
>>traceMode="SortByTime"
>>localOnly="true"
>>

>>
>>To turn on tracing, set the enabled property to “true”. If the pageOutput property is set to “true”, the trace output is displayed at the bottom of each ASP.NET page. If it’s set to “false”, trace output is saved in a file named “trace.axd” found in your Web application’s root directory.
>>
>>>Cathi,
>>>
>>>I am setting up Debug.Assert(Page.IsValid == true); It is saying that I need a setting with within it - I'm not sure where these setting need to be - I was asking if they go in web.config.
>>>
>>>Unless there is an easier way to set Stack Trace on to debug my web project?
>>>
>>>Thanks Again,
>>>Doug
>>>>Doug,
>>>>
>>>>What configuration file are you referring to? I didn't see any reference to one in the error message you posted.
>>>>
>>>>>Cathi,
>>>>>
>>>>>Silly question - I am not seeing the configuration file they speak of - they are not talking about web.config, right?
>>>>>
>>>>>Thanx,
>>>>>Doug
>>>>>>I recommend using the Stack Trace to see if it gives you any more insight of the error. All you are seeing is that an error occured but no info about the source of the error.
>>>>>>
>>>>>>>All,
>>>>>>>
>>>>>>>I was debugging a web page page, and started walking the Page object. I scrolled down the listed variables and saw this next to the variable IsValid
>>>>>>>

>>>>>>>< error: an exception of type: {System.Web.HttpException} occurred >
>>>>>>>

>>>>>>>
>>>>>>>What does it mean, what was it, how do I catch it and fix it?
>>>>>>>
>>>>>>>TIA,
>>>>>>>Doug

-----------------------------------------

Cathi Gero, CPA
Prenia Software & Consulting Services
Microsoft C# / .NET MVP
Mere Mortals for .NET MVP
cgero@prenia.com
www.prenia.com
Weblog: blogs.prenia.com/cathi