InfoPath Dev

 i have three fields (s_john, t_john, Cost) on a infopath form. i defined data type as Decimal(double) for all of the fields. I am trying to run the code below when user clicks a button.

 XPathNavigator root = MainDataSource.CreateNavigator();
            
            double JohnSalary = root.SelectSingleNode("my:myFields/my:Salary/my:s_john", NamespaceManager).Value;
            double JohnWorkHours = root.SelectSingleNode("my:myFields/my:TotalHours/my:t_john", NamespaceManager).Value;

            double asd = JohnSalary * JohnWorkHours;
            root.SelectSingleNode("my:myFields/my:Cost", NamespaceManager).SetValue(asd);

However i am getting the errors below:

Error    1    Cannot implicitly convert type 'string' to 'double'    C:\Documents and Settings\eyilmaz\My Documents\InfoPath Projects\Template15\FormCode.cs    40    33    Template1

Error    2    Cannot implicitly convert type 'string' to 'double'    C:\Documents and Settings\eyilmaz\My Documents\InfoPath Projects\Template15\FormCode.cs    41    36    Template1

Error    3    Cannot convert method group 'SetValue' to non-delegate type 'double'. Did you intend to invoke the method?    C:\Documents and Settings\eyilmaz\My Documents\InfoPath Projects\Template15\FormCode.cs    44    13    Template1

 What am i missing here? 

Thank You.

 OK. i changed the code like this.

 XPathNavigator root = MainDataSource.CreateNavigator();

            double JohnSalary = root.SelectSingleNode("my:myFields/my:Salary/my:s_john", NamespaceManager).ValueAsDouble;
          
            double JohnWorkHours = root.SelectSingleNode("my:myFields/my:TotalHours/my:t_john", NamespaceManager).ValueAsDouble;
            
            double asd = JohnSalary * JohnWorkHours;
            root.SelectSingleNode("my:myFields/my:Cost", NamespaceManager).SetTypedValue(asd);

Now i am getting some security error. 

System.Security.SecurityException was unhandled by user code
  Message="Request failed."
  Source="Microsoft.Office.InfoPath.Client.Internal.Host"
  StackTrace:
       at Microsoft.Office.InfoPath.MsxmlNavigator.IsValidNode(MsxmlNode test)
       at Microsoft.Office.InfoPath.MsxmlNavigator.MoveToFirstChild()
       at MS.Internal.Xml.XPath.XPathChildIterator.MoveNext()
       at MS.Internal.Xml.XPath.ChildrenQuery.Advance()
       at MS.Internal.Xml.XPath.ChildrenQuery.Advance()
       at MS.Internal.Xml.XPath.ChildrenQuery.Advance()
       at MS.Internal.Xml.XPath.XPathSelectionIterator.MoveNext()
       at System.Xml.XPath.XPathNavigator.SelectSingleNode(XPathExpression expression)
       at System.Xml.XPath.XPathNavigator.SelectSingleNode(String xpath, IXmlNamespaceResolver resolver)
       at Template1.FormCode.CTRL7_5_Clicked(Object sender, ClickedEventArgs e)
       at Microsoft.Office.InfoPath.Internal.ButtonEventHost.OnButtonClick(DocActionEvent pEvent)
       at Microsoft.Office.Interop.InfoPath.SemiTrust._ButtonEventSink_SinkHelper.OnClick(DocActionEvent pEvent)
 

 interesting but i started getting this security error after i installed Microsoft Visual Web Developer 2008 Express Edition. i do not know why this application causes such a error like that.

Hi Viperay,

MSXML should not have changed, so hard to think that was a problem. Maybe something going on with Internet Explorer. Did the version of that change? I don't know what the problem is here. Sorry for not being more specific.

 Really interesting. I uninstall web express also i reinstall infopath still i am getting same security error. 2 week ago i designed some forms and people use it now without any problem.When i try to use same form i am getting security error again. This must be a bug or something. Also i tried to write many different codes, as soon as i run the form it gives me that security error and it shows the very first code line for that error.

 Here is some ss

http://img211.imageshack.us/img211/3347/infole3.jpg

http://img186.imageshack.us/img186/8741/info2pz9.jpg

viperay, I believe the problem you are experiencing may be related to you having installed VS 2008 or more precisely .NET runtime 3.5. I think there is a bug there which breaks InfoPath solutions. There should be a hotfix for it eventually but for now your best bet is to make the solution full-trust. Let me know if this temporary workaround fixes your problems.

 Yes i thought about it. That is why i uninstall .net 3.5 but still same error. I will work on it, if i solve i ll post it, but it seems that the end of this is gonna be reinstalling windows.

Here some ss

http://img211.imageshack.us/img211/3347/infole3.jpg

http://img186.imageshack.us/img186/8741/info2pz9.jpg

problem is in form security. Set it to Ful Trust and it should work.

regards

Mike