I have a project estimation application that is currently in use where I have a grid displaying summary data that is using two group by columns. The final screen in the application is similar to a final estimated cost of a project grouped by a major category and sub categories. For example, materials, engineering and labor are the major categories and then each one has subcategories. The user can then adjust factors such as percentage mark up, percentage risk and sales commission to add to the estimate cost and arrive at a final sales price that is submitted to a potential customer. When the user makes a change to one of these factors I recalculate the results in the underlying data table and the data is updated in the wingrid. I am displaying a summary dollar total for each category and sub category and then a final grand total at the bottom of the gird.
I have been receiving complaints from the users that sometimes the sum of the sub totals and the grand total do not add up to the same value. Of course when one of the users tried to show me it appeared to work just fine and just wrote it off as user error. As if it meant anything I tried to explain to the user that the grid control automatically calculates the sub total and total values so I doubted very much that they would not match. But today I just saw it happen with my own eyes where a user updated the mark up percentage on an estimate and the subtotal and grand total did not add up. If I'm not mistaken the group by totals did not update, but the grand total updated and was correct.
In my last post I had a situation where the group by column was not displaying correctly using an ADO column with an expression as the source. I had to use the .Bands(0).SortedColumns.RefreshSort(True) method on each grid every time I added a new record for the grid to display correct. Using the same technique to get around that problem I am able to get the grid to correctly update and the subtotals and grand totals add up correctly.
As you might imagine this whole thing was a big surprise to me. I no longer feel comfortable assuming the wingrid is going to display the correct group by summary values unless I manually kick the grid every time something changes. I don't know if this has anything do with the problem I discussed in my last post, but it seems very coincidental. The groups in a wingrid don't appear to always update when the underlying data changes.
I'm running release v9.1.2009.2029.
I know this question is a little stale but I came across a similar problem and I have a solution that worked for me. The root problem here is that Group By summaries are not updating when the underlying data changes. This is because the grid is not getting notified when the data changed. Make sure the objects in your data source are implementing INotifyPropertyChanged. I always tend to implement INotifyPropertyChanging and INotifyPropertyChanged in any class that will be used with data binding.
using System.ComponentModel; namespace Example.Models.View { public class ViewModel : INotifyPropertyChanging, INotifyPropertyChanged { private bool _excluded; public bool Excluded { get { return _excluded; } set { OnPropertyChanging("Excluded"); _excluded = value; OnPropertyChanged("Excluded"); } } private string _value; public string Value { get { return _value; } set { OnPropertyChanging("Value"); _value = value; OnPropertyChanged("Value"); } } public event PropertyChangingEventHandler PropertyChanging; public event PropertyChangedEventHandler PropertyChanged; protected void OnPropertyChanging(string propertyName) { if (PropertyChanging!=null) PropertyChanging(this, new PropertyChangingEventArgs(propertyName)); } protected void OnPropertyChanged(string propertyName) { if(PropertyChanged!=null) PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); } } }
Hello Walter,
Could you please try to attach if possible a small sample project reproducing the above mentioned issue, I will be happy to take a look at it.
I am experiencing this problem (or a very similar problem) in 10.3.
Here is what my users sees - note the total under columns such as Rtl Units is obviously incorrect.
here is the code that does the group by when the user calls up the screen:
grdRSTSIST1.DisplayLayout.Bands(0).SortedColumns.Add("DEPT_CODE", False, True)
If I remark out that line, this is what my user sees - note that the total under Rtl Units is now correct:
If I insert the DoEvents just before the offending line, like so:
Application.DoEvents()grdRSTSIST1.DisplayLayout.Bands(0).SortedColumns.Add("DEPT_CODE", False, True)
This is what the user sees - note that the total is now correct.
I have tried to add the following line, but it did not fix things:
grdRSTSIST1.Rows.Refresh(UltraWinGrid.RefreshRow.RefreshDisplay)
Nor did this:
grdRSTSIST1.ResumeSummaryUpdates(True)
I would really not like to leave a DoEvents in my code.
Please help.
Walter J. Zielenski
Solved It
I have added two extra Summaries to the column to the left of where I am adding up the values. These 2 new summary in the column to the left do not show the 'value' just the heading. I have also added
.Appearance.TextTrimming = TextTrimming.None to the summary appearance because the default seems to be to TextTrimming.ellipsisThis took me ages to all figure out so here is all the code for someone elseHere is how you can add summary of a column in code. The retruned ' SummarySettings object has properties for specifying the appearance, ' visibility and where it's displayed among other things. Dim columnToSummarize As UltraGridColumn = oultraGrid.DisplayLayout.Bands(0).Columns("Value") Dim summary As SummarySettings = oultraGrid.DisplayLayout.Bands(0).Summaries.Add("ValueTotal", _ SummaryType.Custom, _ New DocumentTabSummary, _ columnToSummarize, _ SummaryPosition.UseSummaryPositionColumn, _ columnToSummarize) With summary .ShowCalculatingText = DefaultableBoolean.True .DisplayFormat = "{0:#####.00}" .Appearance.TextHAlign = HAlign.Right .Appearance.TextTrimming = TextTrimming.None .Appearance.TextVAlign = VAlign.Top ' SummaryDisplayArea property is expossed on the SummarySettings object as ' well allowing to control if and where the summary gets displayed on a ' per summary basis. .SummaryDisplayArea = SummaryDisplayAreas.Bottom End With Dim SubTotalcolumn As UltraGridColumn = oultraGrid.DisplayLayout.Bands(0).Columns("Finding") Dim subsumm As SummarySettings = oultraGrid.DisplayLayout.Bands(0).Summaries.Add("FindingTotal", SummaryPosition.UseSummaryPositionColumn, _ SubTotalcolumn) With subsumm .Lines = 1 .ShowCalculatingText = DefaultableBoolean.True .DisplayFormat = "Sub Total" .Appearance.TextHAlign = HAlign.Right .Appearance.TextTrimming = TextTrimming.None .Appearance.TextVAlign = VAlign.Top .SummaryDisplayArea = SummaryDisplayAreas.Bottom End With ' Here is how you can add summary of a column in code. The retruned ' SummarySettings object has properties for specifying the appearance, ' visibility and where it's displayed among other things. Dim columnToTotal As UltraGridColumn = oultraGrid.DisplayLayout.Bands(0).Columns("Value") Dim gsummary As SummarySettings = oultraGrid.DisplayLayout.Bands(0).Summaries.Add("GrandTotal", _ SummaryType.Custom, _ New DocumentTabSummary, _ columnToTotal, _ SummaryPosition.UseSummaryPositionColumn, _ columnToTotal) With gsummary .Lines = 1 .ShowCalculatingText = DefaultableBoolean.True .DisplayFormat = "{0:#####.00}" .Appearance.TextHAlign = HAlign.Right .Appearance.TextTrimming = TextTrimming.None .Appearance.TextVAlign = VAlign.Top .SummaryDisplayArea = SummaryDisplayAreas.BottomFixed _ Or SummaryDisplayAreas.RootRowsFootersOnly End With Dim Totalcolumn As UltraGridColumn = oultraGrid.DisplayLayout.Bands(0).Columns("Finding") Dim summ As SummarySettings = oultraGrid.DisplayLayout.Bands(0).Summaries.Add("FindingTotal", SummaryPosition.UseSummaryPositionColumn, _ Totalcolumn) With summ .Lines = 1 .ShowCalculatingText = DefaultableBoolean.True .DisplayFormat = "Grand Total" .Appearance.TextHAlign = HAlign.Right .Appearance.TextTrimming = TextTrimming.None .Appearance.TextVAlign = VAlign.Top .SummaryDisplayArea = SummaryDisplayAreas.BottomFixed _ Or SummaryDisplayAreas.RootRowsFootersOnly End With ' By default UltraGrid does not display summary footers or headers of ' group-by row islands. To display summary footers or headers of group-by row ' islands set the SummaryDisplayArea to a value that has GroupByRowsFooter ' flag set. With oultraGrid.DisplayLayout.Override .SummaryDisplayArea = oultraGrid.DisplayLayout.Override.SummaryDisplayArea Or SummaryDisplayAreas.GroupByRowsFooter ' By default any summaries to be displayed in the group-by rows are displayed ' as text appended to the group-by row's description. You can set the ' GroupBySummaryDisplayStyle property to SummaryCells or ' SummaryCellsAlwaysBelowDescription to display summary values as a separate ' ui element (cell like element with border, to which the summary value related ' appearances are applied). Default value of GroupBySummaryDisplayStyle is resolved ' to Text. .GroupBySummaryDisplayStyle = GroupBySummaryDisplayStyle.SummaryCells ' Appearance of the summary area can be controlled using the ' SummaryFooterAppearance. Even though the property's name contains the ' word 'footer', this appearance applies to summary area that is displayed ' on top as well (summary headers). .SummaryFooterAppearance.BackColor = SystemColors.Info ' Appearance of summary values can be controlled using the ' SummaryValueAppearance property. .SummaryValueAppearance.BackColor = SystemColors.Window .SummaryValueAppearance.FontData.Bold = DefaultableBoolean.True ' Appearance of summary values that are displayed inside of group-by rows can ' be controlled using the GroupBySummaryValueAppearance property. Note that ' this has effect only when the GroupBySummaryDisplayStyle is set to SummaryCells ' or SummaryCellsAlwaysBelowDescription. .GroupBySummaryValueAppearance.BackColor = SystemColors.Window .GroupBySummaryValueAppearance.TextHAlign = HAlign.Right ' Caption's appearance can be controlled using the SummaryFooterCaptionAppearance ' property. .SummaryFooterCaptionAppearance.FontData.Bold = DefaultableBoolean.True ' By default summary footer caption is visible. You can hide it using the ' SummaryFooterCaptionVisible property. .SummaryFooterCaptionVisible = DefaultableBoolean.False ' SummaryFooterSpacingAfter and SummaryFooterSpacingBefore properties can be used ' to leave spacing before and after the summary footer. .SummaryFooterSpacingAfter = 1 .SummaryFooterSpacingBefore = 1 End With
Hi Mike
The issue is that the Grand Total is lined up with the other summaries only by the user with the mouse lining it up (expanding column width). Please refer to the attached screen.
The specific issue is that the Sub Totals are expanding as expected but the Grand Total row does not resize appropriately.
I am asking for your help to get the Grand Total row / cell to re-size to show the full data in the cell automatically.
Thank you