Thanks!  I took this example and compared it to mine and found no differences.  Since this is an old application that we just keep adding enhancements to, I went through our code and commented out any place we were modifying the grid.  This allowed the images to show, so I restored these lines one by one until I found the culprit.

Private Sub dgrServices_InitializeLayout(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinGrid.InitializeLayoutEventArgs) Handles dgrServices.InitializeLayout

e.Layout.Override.AllowRowFiltering = DefaultableBoolean.False
e.Layout.Override.RowSelectors = DefaultableBoolean.False
e.Layout.Override.AllowColSizing = AllowColSizing.Free
e.Layout.Override.HeaderClickAction = HeaderClickAction.SortMulti
e.Layout.Override.CellClickAction = CellClickAction.RowSelect
e.Layout.Override.CellDisplayStyle = CellDisplayStyle.FormattedText
e.Layout.ViewStyle = ViewStyle.SingleBand
e.Layout.Override.BorderStyleCell = UIElementBorderStyle.None
e.Layout.Override.BorderStyleRow = UIElementBorderStyle.Dotted
e.Layout.Override.HeaderAppearance.TextHAlign = HAlign.Center
e.Layout.ScrollBounds = ScrollBounds.ScrollToFill
e.Layout.TabNavigation = TabNavigation.NextControlOnLastCell

If e.Layout.IsDisplayLayout Then
With e.Layout.Bands(0)

AddBooleanValueListToColumn(e.Layout.Bands(0).Columns("Requested"), My.Resources.requested, Nothing, e.Layout)
AddBooleanValueListToColumn(e.Layout.Bands(0).Columns("Hazardous"), My.Resources.hazmat, Nothing, e.Layout)
AddBooleanValueListToColumn(e.Layout.Bands(0).Columns("Team"), My.Resources.users2, Nothing, e.Layout)

End With
End If

End Sub

Private Sub AddBooleanValueListToColumn(column As UltraGridColumn, trueIcon As Bitmap, falseIcon As Bitmap, layout As UltraGridLayout)

Dim teamImages As ValueList = layout.ValueLists.Add(column.Key)
Dim vli As ValueListItem = teamImages.ValueListItems.Add(True, "Y")
vli.Appearance.Image = trueIcon
vli = teamImages.ValueListItems.Add(False, String.Empty)
vli.Appearance.Image = falseIcon

teamImages.DisplayStyle = ValueListDisplayStyle.Picture
column.CellAppearance.ImageHAlign = HAlign.Center
column.CellAppearance.ImageVAlign = VAlign.Middle
column.ValueList = teamImages
column.CellActivation = Activation.NoEdit

End Sub

The bold line above caused the images to now show, even though this line was run before setting the ValueList on the column.  I commented it out and don't think we will need to use it in the future.  It surprised me that this override was applied on top of setting this same property on the column, thus hiding the icons.

I also was able to show the icons using ValueBasedAppearance, but I don't know how to hide the checkbox that is shown being a Boolean value column. Any suggestions on that, in case we need to use it in the future.  Is this a possible use for the ValueBasedAppearance?

Thanks!

Yes, this one is resolved.  I have been able to produce what I need.  Thank you!

ValueBasedAppearance is really designed for design-time. Setting it up at run-time is a lot of wasted effort, because it's much much easier and a whole lot less code to simple apply an appearance to the cell or row in the InitializeRow event.

Using the ValueList to translate a value into an image is useful in the case where you want just the image and no text, and/or if you want the user to be able to drop down the list and choose a new value.

It's not clear to me from your last post whether of not you've solved the problem and gotten what you needed. Do you still need help with this? If so, then it might help a lot if you could be more specific about exactly what you are trying to achieve.

Ok, to summarize:

Using ValueLists:

I am able to keep the FormattedText CellDisplayStyle and set the column CellDisplayStyle to FullEditorDisplay.  I ended up with the following code:

Private Sub AddBooleanValueListToColumn(column As UltraGridColumn, trueIcon As Bitmap, falseIcon As Bitmap, layout As UltraGridLayout)

Dim teamImages As ValueList = layout.ValueLists.Add(column.Key)
Dim vli As ValueListItem = teamImages.ValueListItems.Add(True, "Y")
vli.Appearance.Image = trueIcon
vli = teamImages.ValueListItems.Add(False, String.Empty)
vli.Appearance.Image = falseIcon

teamImages.DisplayStyle = ValueListDisplayStyle.Picture
column.CellAppearance.ImageHAlign = HAlign.Center
column.CellAppearance.ImageVAlign = VAlign.Middle
column.ValueList = teamImages
column.CellActivation = Activation.NoEdit
column.CellDisplayStyle = CellDisplayStyle.FullEditorDisplay

End Sub

It looks like ValueBasedAppearance is to be used to modify the default display (text, checkbox for boolean, etc), correct?

I came up with this code, which doesn't work for showing the icon instead of default display value:

Private Sub AddIconToColumn(column As UltraGridColumn, trueIcon As Bitmap, falseIcon As Bitmap)

Dim trueCond As New Infragistics.Win.OperatorCondition(Infragistics.Win.ConditionOperator.Equals, True)
Dim falseCond As New Infragistics.Win.OperatorCondition(Infragistics.Win.ConditionOperator.Equals, False)

Dim trueApp As New Infragistics.Win.Appearance() With {
.Image = trueIcon,
.ImageVAlign = Infragistics.Win.VAlign.Middle,
.ImageHAlign = Infragistics.Win.HAlign.Center
}
Dim falseApp As New Infragistics.Win.Appearance() With {
.Image = falseIcon,
.ImageVAlign = Infragistics.Win.VAlign.Middle,
.ImageHAlign = Infragistics.Win.HAlign.Center
}
column.AllowRowFiltering = DefaultableBoolean.True
column.ValueBasedAppearance = New Infragistics.Win.ConditionValueAppearance(New Infragistics.Win.ICondition() {trueCond, falseCond}, New Infragistics.Win.Appearance() {trueApp, falseApp})

End Sub

Thanks for your help!

Hi Robert,

I am just checking about the progress of this issue. Let me know if you need my further assistance on this issue.

Thank you for using Infragistics Components.

e.Layout.Override.CellDisplayStyle = CellDisplayStyle.FormattedText

This line of code is basically an optimization. It tells the columns not to use the editor to display the text in the cell, but to instead display it with a TextUIElement. This is good for performance, since it reduces the number of UIElements that the grid uses to paint.It's good for cases where you have a lot of changes occurring int he grid at high speed, and/or if you have a very large grid with a lot of cells on-screen at the same time.

The down side is that it disables any kind of editor-specific functionality in the cell, like showing images via a ValueList.

So removing this line of code probably won't have much of an effect on your application. But worst-case scenario, you could leave this line of code in place and and then override this setting on the one column with the ValueList:

e.Layout.Bands[0].Columns["My ValueList Column"].CellDisplayStyle = CellDisplayStyle.FullEditorDisplay;