Converting UltraCombo to UltraDropDown

725

Stephen Crook posted over 10 years ago

I'm currently working on a project that initially used a form to display data in Text Boxes & UltraComboBoxes

I am now trying to convert from using a Form to using an UltraWinGrid in CardView Mode.

My biggest issue for now is replicating all the Filter/Complete behavior I had on the UltraCombo in the new UltraDropDown control for the grid.

In the Form Version I have this in the Form Init routine

        With ucb_EMSName
            .DataSource = _stcodes
            .ValueMember = "Station"
            .DisplayMember = "Station"
        End With

And then the following control init

    Private Sub ucb_EMSName_InitializeLayout(sender As Object, e As UltraWinGrid.InitializeLayoutEventArgs) Handles ucb_EMSName.InitializeLayout
        With ucb_EMSName
            .DisplayLayout.Bands(0).Columns("Station").Header.VisiblePosition = 0
            .DisplayLayout.Bands(0).Columns("Code").Header.VisiblePosition = 1
            .AutoCompleteMode = AutoCompleteMode.Suggest
            .AutoSuggestFilterMode = AutoSuggestFilterMode.Contains
            .CharacterCasing = CharacterCasing.Upper
            .DropDownStyle = UltraWinGrid.UltraComboStyle.DropDown
        End With
    End Sub

This works fine on the form by automatically filtering the drop down list as the user types in the control.

For the Grid version I have tried to replicate it with the following

In the form init routine

        With udd_EMSName
            .DataSource = _stcodes
            .ValueMember = "Station"
            .DisplayMember = "Station"
            .DisplayLayout.Bands(0).Columns("Station").Header.VisiblePosition = 0
            .DisplayLayout.Bands(0).Columns("Code").Header.VisiblePosition = 1
        End With

        With ug.DisplayLayout.Bands(0).Columns("Station")
            .ValueList = udd_EMSName
            .AutoCompleteMode = AutoCompleteMode.Suggest
            .AutoSuggestFilterMode = AutoSuggestFilterMode.Contains
            .CharacterCasing = CharacterCasing.Upper
        End With

And the following control init

    Private Sub udd_EMSName_InitializeLayout(sender As Object, e As UltraWinGrid.InitializeLayoutEventArgs) Handles udd_EMSName.InitializeLayout
        With udd_EMSName
            .DisplayLayout.Bands(0).Columns("Station").Header.VisiblePosition = 0
            .DisplayLayout.Bands(0).Columns("Code").Header.VisiblePosition = 1
        End With
    End Sub

This simply gives me a 2 column drop down with no filtering.

I know this should be simple but what am I missing?

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18495

Dave Frischknecht posted over 10 years ago

Hello n2dfire,

Thank you for contacting Infragistics.

If you move the code manipulating the UltraGrid columns into the UltraGrid.InitializeLayout event handler and move the code manipulating the UltraDropDown columns into the UltraDropDown.InitializeLayout event, does it work as you expect?

Whenever you need to set properties of columns in any of the UltraGrid-based controls, you should do it in the InitializeLayout event.
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725

Offline Stephen Crook posted over 10 years ago in reply to Dave Frischknecht

Dave,

I actually have 5 different dropdowns so I have limited the sample to just one for simplicity.

Here is what I have now.

    Private Sub ug_InitializeLayout(sender As Object, e As InitializeLayoutEventArgs) Handles ug.InitializeLayout

        With ug.DisplayLayout.Bands(0).Columns("Station")
            .ValueList = udd_EMSName
            .AutoCompleteMode = AutoCompleteMode.Suggest
            .AutoSuggestFilterMode = AutoSuggestFilterMode.Contains
            .CharacterCasing = CharacterCasing.Upper
            .Style = ColumnStyle.DropDown
        End With

    End Sub

    Private Sub udd_EMSName_InitializeLayout(sender As Object, e As InitializeLayoutEventArgs) Handles udd_EMSName.InitializeLayout
        With udd_EMSName
            .ValueMember = "Station"
            .DisplayMember = "Station"
            .DisplayLayout.Bands(0).Columns("Station").Header.VisiblePosition = 0
            .DisplayLayout.Bands(0).Columns("Code").Header.VisiblePosition = 1
        End With
    End Sub

The udd datasource property is set in the form init event

What I am seeing now appears as if the following two properties are being ignored

.AutoCompleteMode = AutoCompleteMode.Suggest

This should begin to remove entries from the dropdown list that do not meet the filter criteria based on the user input

.AutoSuggestFilterMode = AutoSuggestFilterMode.Contains

Should pick up any result in the list that contains the matching string of user input regardless of it's position within the result item text.

Ex "AL" would match both "Albert" and "Ball"

What is actually happening is that no list items are being filtered out as the user types and a selection is only made/highlighted when an exact match is reached. Is there some other property I need to set on the column to tell it when to filter the dropdown?

Thanks

Stephen
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