Draw column borders in GroupByRows

300

Stefan posted over 14 years ago

I've seen similar threads, but not this exact problem. I'm trying to draw the column borders in my GroupByRows so they look like data rows in the grid.

I'm using the SummaryCells display style to align Summaries with Columns.

this.DisplayLayout.Override.GroupBySummaryDisplayStyle = Infragistics.Win.UltraWinGrid.GroupBySummaryDisplayStyle.SummaryCells;

For columns with summaries this works great and I can easily draw borders using the DrawFilter. The problem is for columns that don't have summaries.

My current approach is to use a DrawFilter to draw a line from the Header all the way across the grid. I'm using the AfterDrawForegroundPhase for the HeaderUIElement, but my lines seem to be getting drawn over by the body of the grid. (See code and screen shot below. Lines are in red, blue rows are GroupByRows).

Is there a better phase/UIElement to use? A different approach altogether? My other thought is to attach a custom summary to all columns that does nothing, just so I can draw its borders. That seems like a waste though.

Thanks,
Stefan

In GetPhasesToFilter:

else if (drawParams.Element is HeaderUIElement)
return DrawPhase.AfterDrawForeground;

In DrawElement

else if (drawParams.Element is HeaderUIElement)
{
int gridBottom = drawParams.Element.ControlElement.RectInsideBorders.Bottom;

// Draw column borders through the entire grid
drawParams.Graphics.DrawLine(System.Drawing.Pens.Red, new Point(drawParams.Element.RectInsideBorders.X - 2, drawParams.Element.Rect.Y),
new Point(drawParams.Element.RectInsideBorders.X - 2, gridBottom));
}

469350

Offline Mike Saltzman posted over 14 years ago in reply to Stefan

Hi Stefan,

sdsain said:
I meant to say my lines are not getting drawn across the body of the grid.

Ah, okay, I thought you might have left out a "not" in there somewhere. :)

The reason for that is probably the phase you are using to draw the lines. The grid's graphics is probably clipping the drawing to within the UIElements before drawn. To get around that, you would have to use a different phase and probably a different element, like maybe the AfterDrawElement phase of the RowColRegionIntersectionUIElement. This is tricky, thought, since you don't have the header elements easily available to determine where the lines would go. I think the summary approach will be a lot easier in the long run.
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300

Stefan posted over 14 years ago in reply to Mike Saltzman

Hi Mike,

My wording wasn't the greatest. I meant to say my lines are not getting drawn across the body of the grid.

I'll try the the custom summary route and see how that goes.

Thanks,

Stefan
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469350

Offline Mike Saltzman posted over 14 years ago

Hi Stefan,

I'm not sure I understand the issue. What do you mean by this?

sdsain said:
my lines seem to be getting drawn over by the body of the grid.

I don't see any lines across the body of the grid. All I see are lines in the header. Isn't drawing lines across the body of the grid what you want to happen? Did you mean to say that your lines are NOT getting drawn across the body of the grid?

Personally, I'd just add a summary to each column. That would be a lot easier.



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

            layout.ViewStyleBand = ViewStyleBand.OutlookGroupBy;
            band.SortedColumns.Add("Int32 1", false, true);

            ov.SummaryDisplayArea = SummaryDisplayAreas.InGroupByRows;
            ov.GroupBySummaryDisplayStyle = GroupBySummaryDisplayStyle.SummaryCells;
            ov.GroupBySummaryValueAppearance.BorderColor = Color.Black;

            BlankSummaryCalculator blankSummaryCalculator = new BlankSummaryCalculator();

            foreach (UltraGridColumn column in band.Columns)
            {
                SummarySettings summarySettings = band.Summaries.Add(SummaryType.Custom, blankSummaryCalculator, column, SummaryPosition.UseSummaryPositionColumn, column);
                summarySettings.DisplayFormat = "{0}";
            }
        }



    public class BlankSummaryCalculator : ICustomSummaryCalculator
{
    #region ICustomSummaryCalculator Members

    void ICustomSummaryCalculator.AggregateCustomSummary(SummarySettings summarySettings, UltraGridRow row)
    {
        
    }

    void ICustomSummaryCalculator.BeginCustomSummary(SummarySettings summarySettings, RowsCollection rows)
    {
        
    }

    object ICustomSummaryCalculator.EndCustomSummary(SummarySettings summarySettings, RowsCollection rows)
    {
        return null;
    }

    #endregion
}