Yes... but that would be the easy way out and we wouldnt be programming Micrrosoft products if we settled for that... ;) 

no, actually, I have about a dozen types of logs that contain the same core data, but each log has different sets of property data that would be within the collection.  I would like to avoid defining on specific class for each of the log types.  What I would like to do is have a generic class that contains the core data and then a collection of log entry proprties for the variable stuff.  The collection would contain the property name, ID and value.  When I get my log back I want to create the columns for that log type dynamically, then as I'm populating my rows, assign them to the specific properties within the sub collection.

I am basically trying to reproduce the sample you suplied on the first page but with slightly different requirements

i am going to have a parent / child class set up.  i would like the rows in the child collection to end up being the dynamic columns

i was able to get this 'working' in a view only set up.  i  need to allow the users to able to edit these dynamic columns

i will post the code i am using ion the next post.

If this is refering to my Unbound column issues, i have not experienced this since moving to the release version of 2010.1 Unbound Columns

once my solution built on this goes to QA if they find issues I may ask again in a new thread, but for now i am good to go.

thanks.

i am not sure what you are refering to?

as for as going to 2010.1 i am not sure i am permitted to do that yet, got to get the bosses approval for that. 

if that would be a better solutions, please share

You are doing something wrong if you could not get data to show up.  Check your output window in Visual Studio to see what errors are being thrown.  Also, keep in mind that if you move to v10.1 you will have to use the UnboundColumn instead, because Infragistics now throws an exception if you try to do that method with a template column.  Please provide your code that creates your template column and I will see if anything stands out at me.

IG

any idea whats wrong with my sample or why that Silverlight is throwing that exception that i posted at the top of page 3, (when you click on one of the cells)????

yeah at the moment i am using this and it seems to work 

Private Function CreateXamTemplateColumn(ByVal i As Integer, _
                                             ByVal propName As String) As ColumnBase

        Dim column As New TemplateColumn()

        column.Key = propName & i

        column.HeaderText = String.Format("Period#{0}.{1}", i, propName)

        column.ItemTemplate = XamlReader.Load(CreateColumnTemplate(i, propName))

        column.EditorTemplate = XamlReader.Load(CreateColumnEditTemplate(i, propName))
        ' //edit template  
        Return column
    End Function

Also, generate a unique key for each colum:

Private Function CreateXamTemplateColumn(ByVal i As Integer, _
                                             ByVal propName As String) As ColumnBase

        Dim column As New TemplateColumn()

        column.Key = propName  //*******  Generate Unqiue key **************// string.format("Column{0}", i); or something like that.  Maybe use a random number or somehting, just make it unique.

        column.HeaderText = String.Format("Period#{0}.{1}", i, propName)

        column.ItemTemplate = XamlReader.Load(CreateColumnTemplate(i, propName))

        column.EditorTemplate = XamlReader.Load(CreateColumnEditTemplate(i, propName))
        ' //edit template  
        Return column
    End Function

make sure you are not concatenating anything to the propName parameter.  Actually just remove it all together, and replace the {1} in the string.format method with the Hours property.  Do this with both the item template and edit template methods.

Private Function CreateColumnEditTemplate(ByVal index As Integer) As String

        Dim CellTemp As New StringBuilder()
        CellTemp.Append("<DataTemplate ")
        CellTemp.Append("xmlns='http://schemas.microsoft.com/winfx/")
        CellTemp.Append("2006/xaml/presentation' ")
        CellTemp.Append("xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'>")
        CellTemp.Append([String].Format("<TextBox Text='{{Binding Periods[{0}].Hours, Mode=TwoWay}}' TextAlignment='Right'/>", _
                                        index, propertyName))
        CellTemp.Append("</DataTemplate>")

        Return CellTemp.ToString()
    End Function

so i guess based on what you were said earlier about them throwing an error, was it possibly the dup key i error. 

i added the index to "hours" to change the key so i would not throw that exception

i changed it back to test, and just exited the loop after one and it seems to work. 

anythoughts on how to get around this

ALSO, thanks for all the help!