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.

Should the following scenerio work with a Unbound Column:

I am trying to render a Image in a column based on the Url in the dictionary.  the converter runs and returns the correct BitMapImage, but it does not display in the grid.  if i change the image width and height in my custom datatemplate the grid expands so i think the itemtemplate is working correctly

Set the datatemplate of the column to:

<

DataTemplate x:Key="iconPresenterStyle">

<

Image Stretch="Fill" Width="40" Height="40" Source="{Binding}" />

</

DataTemplate>

Code is here:

if

(IsIcon)

{

Application.Current.Resources["iconPresenterStyle"] as DataTemplate;

// Gets absolute url based on location of .xap download

new Hyland.Types.Silverlight.Converters.IconUriConverter();

ValueConverterParameter =

Convert.ToString(columnElement["name"]);

}

Converter is here:

PropertyBag

bag = value as PropertyBag;

string index = parameter as string;

Uri uri = null;

if (null != bag && !string.IsNullOrEmpty(index))

{

if (bag.Contains(index))

{

// ../ assumes the Xap package is in a clientbin folder below the root

new Uri(Application.Current.Host.Source, "../" + bag[index]);

}

}

// return image from onbase web server or an empty image if no

// url found in element

if (null != uri)

{

return new BitmapImage(uri);

}

else

return new BitmapImage();

}

Hi Ted, 

Sorry for the delayed response. 

I should have mentioned this earlier.  The UnboundColumn has a different DataContext than a TemplateColumn.  We did this, so that users have access to more information, and also so they don't have to duplicate their work. 

So the DataContext is of type: UnboundColumnDataContext, which as 3 members that you can bind to:

RowData, Value, and ColumnKey.

RowData - represents the data object for the current row. 

ColumnKey - is simply the key that you assigned to the column 

Value - is what your ValueConverter returns. 

So, in the DataTemplate you listed above you should use {Binding Value}

Hope this helps, 

-SteveZ

could you explain this line a little further.

 elem.DataContext = mdo.Properties[cell.Column.Key];

i am trying to reproduce in vb.net...

is it possible to use this set up to Edit the columns you generate on the fly?  

i have a collection that has a parent / child row set up in it.  i have got it to create and bind the columns based on the data that i have in the child collection.

here is the error it is throwing, the numbers are different based on the cell and row

Invalid Binding Path; character 3 in 3.

   at System.Windows.PropertyPathParser.ReadStepDescriptor(Boolean calledFromParser)
   at System.Windows.PropertyPathParser.Parse()
   at System.Windows.PropertyPath.ParsePath(String path, Boolean calledFromParser)
   at System.Windows.PropertyPath.ParsePathInternal(Boolean calledFromParser)
   at System.Windows.Data.Binding.set_Path(PropertyPath value)
   at System.Windows.Data.Binding..ctor(String path)
   at Infragistics.Silverlight.Controls.Primitives.ColumnContentProviderBase.ResolveEditorBinding(Cell cell)
   at Infragistics.Silverlight.Controls.CellControl.AddEditorToControl()
   at Infragistics.Silverlight.Controls.Cell.EnterEditMode(Boolean cellIsEditing)
   at Infragistics.Silverlight.Controls.XamWebGrid.EnterEditModeInternal(Row row, Cell cell)
   at Infragistics.Silverlight.Controls.XamWebGrid.EnterEditMode(CellBase cell)
   at Infragistics.Silverlight.Controls.XamWebGrid.SetActiveCell(CellBase cell, CellAlignment alignment, InvokeAction action, Boolean allowSelection, Boolean setFocus, Boolean scrollIntoView)
   at Infragistics.Silverlight.Controls.XamWebGrid.SetActiveCell(CellBase cell, CellAlignment alignment, InvokeAction action, Boolean allowSelection, Boolean scrollIntoView)
   at Infragistics.Silverlight.Controls.XamWebGrid.SetActiveCell(CellBase cell, CellAlignment alignment, InvokeAction action, Boolean allowSelection)
   at Infragistics.Silverlight.Controls.Cell.OnCellMouseDown(MouseEventArgs e)
   at Infragistics.Silverlight.Controls.XamWebGrid.c(Object A_0, MouseButtonEventArgs A_1)
   at System.Windows.CoreInvokeHandler.InvokeEventHandler(Int32 typeIndex, Delegate handlerDelegate, Object sender, Object args)
   at MS.Internal.JoltHelper.FireEvent(IntPtr unmanagedObj, IntPtr unmanagedObjArgs, Int32 argsTypeIndex, String eventName)

Hi, 

So, what exactly are you doing? 

Can you explain your scenario? Are you creating a Custom ColumnContentProvider?

What does your editing template look like?

The more information you provide, the better chance we have of helping you.

Thanks,

-SteveZ

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!