ultra grid cell which accept only integers - How

Hi,

Getting that kind of fine control over an individual cell will be very tricky.

1) There's no way to remove the prompt character for a masked editor. You could change it to a 'space' character, but you will have to do this for the whole column.

2) The property you want is not SelLength (which is the length of the current selection) but MaxLength. There is no way to set MaxLength on an individual cell, it can only be set on the column. But in this case, you don't need to set it, anyway, because you can simply set the editor's mask to only permit three places.

Here's some quick sample code I threw together just to show you how to do this. This code is not very efficient, since I am creating a new editor every time InitializeRow fires. For your real code, you should cache and re-use the same editor for the same cell and any other cell who's requirements are the same.



        private void ultraGrid1_InitializeLayout(object sender, Infragistics.Win.UltraWinGrid.InitializeLayoutEventArgs e)
        {
            UltraGridLayout layout = e.Layout;
            UltraGridBand band = layout.Bands[0];

            band.Columns["Column 0"].PromptChar = ' ';
        }

        private void ultraGrid1_InitializeRow(object sender, Infragistics.Win.UltraWinGrid.InitializeRowEventArgs e)
        {
            if (e.Row.Index == 2)
            {
                // Note that this code is very inefficient. I am creating a new editor for the cell 
                // every time this event fires. The editor should be cached and re-used for any
                // cell in the grid with the same requirements. 
                //
                e.Row.Cells["Column 0"].Style = Infragistics.Win.UltraWinGrid.ColumnStyle.Integer;
                DefaultEditorOwnerSettings defaultEditorOwnerSettings = new DefaultEditorOwnerSettings();
                defaultEditorOwnerSettings.MaskInput = "nnn";
                DefaultEditorOwner defaultEditorOwner = new DefaultEditorOwner(defaultEditorOwnerSettings);                
                EditorWithMask editorWithMask = new EditorWithMask(defaultEditorOwner);
                e.Row.Cells["Column 0"].Editor = editorWithMask;                
            }
        }

        private void ultraGrid1_InitializeRow(object sender, InitializeRowEventArgs e)
        {
            if (e.Row.Index == 2)
                e.Row.Cells["My Column"].Style = Infragistics.Win.UltraWinGrid.ColumnStyle.Integer;
        }