Hi,
I am using an UltraWinGrid to display properties of SQL database tables in the switchboard screen of my app.
All of the databases involved, except 1, recieve the data in the same format. That last database has a join to a definitions table I am using. This makes their set of field names different. ... i think I just answered my own question as to how to workaround... but.
That doesn't let you guys off the hook :)
If I have opened the Field Chooser and then switch between those two databases then the whole app flushes with the dreaded key not found error.
I looked very hard but found no way to access and so catch anything to do with the FieldChooser from the model. The examples I found that gave me hope are for WPF...
I am going to force the two datasources to have the same field names and try to just adjust the visibles and 'hide from FieldChooser' settings on the fly ... that should do it...
Mind you if this blows up to when I hide the fields from the field chooser, too, I can name a certain Fortune 500 company that will be taking a closer look at certain Brand X control packages.... :)
Thanks in advance guys,
Mitch
Hi Mitch,
I'm having a little trouble following you. By "Field Chooser", I assume you mean the UltraGridColumnChooser. Is that right? Or are you using some other component I am not familiar with?
If changing the DataSource on your grid is blowing up the Field Chooser, that's clearly a bug. That should not happen. Are you sure it's the ColumnChooser blowing up and not something in your code, like maybe you are trying to reference a grid column using a Key that no longer exists in one of the grid's events?
Can you post the call stack of the exception, or better yet a sample project demonstrating the exception?
Thanks, Mike.
What I would really like to be able to do is just before I switch between these two datatables (which have different field sets), just close the ColumnChooser 'dialog' but I don't see any way to get to it from the IG model. If the Column Chooser is closed when the user jumps from the one 'flavor' datatable to the other ... no problem. It can be opened on the new set of fields and it works like a charm. But if the Chooser is open when I switch, the whole crashes and i can't even get to a place in the model to catch the 'Key not Found'...
Here is a stack trace of the 'crash'.
(kind of long...)
************** Exception Text **************System.ArgumentException: Key not foundParameter name: key at Infragistics.Shared.KeyedSubObjectsCollectionBase.GetItem(String key) at Infragistics.Win.UltraWinGrid.ColumnsCollection.get_Item(String key) at Infragistics.Win.UltraWinGrid.CellsCollection.GetItem(String key) at Infragistics.Win.UltraWinGrid.CellsCollection.get_Item(String key) at Infragistics.Win.UltraWinGrid.UltraGridColumnChooser.displayGrid_InitializeRow(Object sender, InitializeRowEventArgs e) at Infragistics.Win.UltraWinGrid.UltraGrid.OnInitializeRow(InitializeRowEventArgs e) at Infragistics.Win.UltraWinGrid.UltraGrid.FireEvent(GridEventIds id, EventArgs e) at Infragistics.Win.UltraWinGrid.UltraGrid.FireInitializeRow(InitializeRowEventArgs e) at Infragistics.Win.UltraWinGrid.UltraGridRow.FireInitializeRow() at Infragistics.Win.UltraWinGrid.RowsCollection.FireInitializeRow(IList rows) at Infragistics.Win.UltraWinGrid.RowsCollection.InitNonGroupByRows(IList fireInitializeRowOnTheseRows) at Infragistics.Win.UltraWinGrid.RowsCollection.SyncRowsHelper(IList boundList) at Infragistics.Win.UltraWinGrid.RowsCollection.SyncRows() at Infragistics.Win.UltraWinGrid.RowsCollection.EnsureNotDirty() at Infragistics.Win.UltraWinGrid.RowsCollection.get_Count() at Infragistics.Win.UltraWinGrid.RowsCollection.GetSpecialRowsHelper(Type rowType, List`1 list, Boolean top, UltraGridRow[] rowsToRecycle) at Infragistics.Win.UltraWinGrid.RowsCollection.GetSpecialRowsHelper(List`1 list, Boolean top, UltraGridRow[] rowsToRecycle) at Infragistics.Win.UltraWinGrid.RowsCollection.CalcSpecialAndFixedRowsHelper(List`1& outSpecialRows, List`1& outFixedRows, Boolean top, UltraGridRow[] rowsToRecycle) at Infragistics.Win.UltraWinGrid.RowsCollection.EnsureSpecialAndFixedRowsCacheCalculated() at Infragistics.Win.UltraWinGrid.RowsCollection.GetRowAtVisibleIndex(Int32 visibleIndex, Boolean includeSpecialRows) at Infragistics.Win.UltraWinGrid.RowsCollection.GetFirstVisibleRow() at Infragistics.Win.UltraWinGrid.RowScrollRegion.get_FirstRow() at Infragistics.Win.UltraWinGrid.RowScrollRegion.GetMaxScrollPosition(Boolean scrollToFill, Boolean ignoreScrollBoundsResolved) at Infragistics.Win.UltraWinGrid.RowScrollRegion.EnsureScrollRegionFilled(Boolean calledFromRegenerateVisibleRows) at Infragistics.Win.UltraWinGrid.RowScrollRegion.RegenerateVisibleRows(Boolean resetScrollInfo) at Infragistics.Win.UltraWinGrid.RowScrollRegion.WillScrollbarBeShown(ScrollbarVisibility assumeColScrollbarsVisible) at Infragistics.Win.UltraWinGrid.ViewStyleBase.FitColumnsToWidth() at Infragistics.Win.UltraWinGrid.BandsCollection.CalculateBandMetrics(Int32 pass) at Infragistics.Win.UltraWinGrid.BandsCollection.CalculateBandMetrics() at Infragistics.Win.UltraWinGrid.ColScrollRegionsCollection.InitializeMetricsHelper() at Infragistics.Win.UltraWinGrid.ColScrollRegionsCollection.InitializeMetrics() at Infragistics.Win.UltraWinGrid.RowScrollRegion.RegenerateVisibleRows(Boolean resetScrollInfo) at Infragistics.Win.UltraWinGrid.RowScrollRegion.WillScrollbarBeShown(ScrollbarVisibility assumeColScrollbarsVisible) at Infragistics.Win.UltraWinGrid.RowScrollRegion.PositionScrollbar(Boolean resetScrollInfo) at Infragistics.Win.UltraWinGrid.ScrollRegionBase.SetOriginAndExtent(Int32 origin, Int32 extent) at Infragistics.Win.UltraWinGrid.RowScrollRegion.SetOriginAndExtent(Int32 origin, Int32 extent) at Infragistics.Win.UltraWinGrid.DataAreaUIElement.ResizeRowScrollRegions() at Infragistics.Win.UltraWinGrid.DataAreaUIElement.PositionChildElements() at Infragistics.Win.UIElement.VerifyChildElements(ControlUIElementBase controlElement, Boolean recursive) at Infragistics.Win.UltraWinGrid.DataAreaUIElement.VerifyChildElements(ControlUIElementBase controlElement, Boolean recursive) at Infragistics.Win.UltraWinGrid.DataAreaUIElement.set_Rect(Rectangle value) at Infragistics.Win.UltraWinGrid.UltraGridUIElement.PositionChildElements() at Infragistics.Win.UIElement.VerifyChildElements(ControlUIElementBase controlElement, Boolean recursive) at Infragistics.Win.UltraWinGrid.UltraGridUIElement.VerifyChildElements(ControlUIElementBase controlElement, Boolean recursive) at Infragistics.Win.UIElement.DrawHelper(Graphics graphics, Rectangle invalidRectangle, Boolean doubleBuffer, AlphaBlendMode alphaBlendMode, Boolean clipText, Boolean forceDrawAsFocused, Boolean preventAlphaBlendGraphics) at Infragistics.Win.ControlUIElementBase.Draw(Graphics graphics, Rectangle invalidRectangle, Boolean doubleBuffer, AlphaBlendMode alphaBlendMode, Size elementSize, Boolean preventAlphaBlendGraphics) at Infragistics.Win.ControlUIElementBase.Draw(Graphics graphics, Rectangle invalidRectangle, Boolean doubleBuffer, AlphaBlendMode alphaBlendMode) at Infragistics.Win.UltraWinGrid.UltraGridUIElement.Draw(Graphics graphics, Rectangle invalidRectangle, Boolean doubleBuffer, AlphaBlendMode alphaBlendMode) at Infragistics.Win.UltraControlBase.OnPaint(PaintEventArgs pe) at Infragistics.Win.UltraWinGrid.UltraGrid.OnPaint(PaintEventArgs pe) at System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer) at System.Windows.Forms.Control.WmPaint(Message& m) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
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How are you displaying the column chooser? Are you using the built-in one on the row selector header?
According to this call stack, the exception is occurring in the ColumnChooser when it tries to access a column that no longer exists. So this may be a bug, but I'm unable to reproduce the issue in a simple project. Changing the DataSource of the grid while the ColumnChooser is open seems to have no effect on the ColumnChoose - it doesn't even update with the new columns, so I can see how that would leave things in a bad state, though. If the user tries to use the ColumnChooser at that point, it does nothing (although it still doesn't blow up for me).
This seems like a bug to me, and I'm going to ask Infragistics Developer Support to write it up for developer review. The Column Chooser should either close or update itself when you change the data source.
As a workaround, hiding the column chooser manually is probably a good way to go. There's no method for this on the grid, but there is a way. What you do is keep a reference to the ColumnChooserDialog. You get it by handling the BeforeColumnChooserDisplayed event:
ColumnChooserDialog columnChooserDialog = null; private void ultraGrid1_BeforeColumnChooserDisplayed(object sender, BeforeColumnChooserDisplayedEventArgs e) { this.columnChooserDialog = e.Dialog; this.columnChooserDialog.FormClosed += new FormClosedEventHandler(columnChooserDialog_FormClosed); } void columnChooserDialog_FormClosed(object sender, FormClosedEventArgs e) { this.columnChooserDialog.FormClosed -= new FormClosedEventHandler(columnChooserDialog_FormClosed); this.columnChooserDialog = null; }
Then when you change the grid's DataSource, you do something like this:
if (this.columnChooserDialog != null) { this.columnChooserDialog.DisposeOnClose = Infragistics.Win.DefaultableBoolean.True; this.columnChooserDialog.Close(); }
Yes, that worked, Mike.
I added the following to 'just before' every place the grid's datasource could change and the ColumnChooser disappears like a champ everytime.
I really just didn't know how to get access to the instance of the ColumnChooser (highlight below); threw in the databindings.clear, but it works without.
Here is the code translated to VB.Net, for those who need it.
Private Sub ultgrdDef_BeforeColumnChooserDisplayed(sender As Object, e As Infragistics.Win.UltraWinGrid.BeforeColumnChooserDisplayedEventArgs) Handles ultgrdDef.BeforeColumnChooserDisplayed Me.m_columnChooserDialog = e.Dialog AddHandler Me.m_columnChooserDialog.FormClosed, New FormClosedEventHandler(AddressOf columnChooserDialog_FormClosed)End Sub
Private Sub columnChooserDialog_FormClosed(sender As Object, e As System.Windows.Forms.FormClosedEventArgs) Handles m_columnChooserDialog.FormClosed RemoveHandler Me.m_columnChooserDialog.FormClosed, New FormClosedEventHandler(AddressOf columnChooserDialog_FormClosed) Me.m_columnChooserDialog = NothingEnd Sub
'This chunk preceeds any place the grid can have it's datasource changed
If Me.m_columnChooserDialog IsNot Nothing Then m_columnChooserDialog.DataBindings.Clear() Me.m_columnChooserDialog.DisposeOnClose = Infragistics.Win.DefaultableBoolean.[True] Me.m_columnChooserDialog.Close() End If
Thanks, I really wanted this to work.
Hello Mitch,
This has been addressed in service release versions WinForms_14.1.20141.2059, WinForms_13.2.20132.2075. At this time do you happen to have any additional questions?
I am waiting for our POC to update the download on our network. So I have not been able to validate the fix yet.
I spotted the issue while working on an analysis application that is IT/Dev side of the aisle and not customer facing (so I may have to wait a little while).
Again, I appreciate this and getting me the workaround as quick as you guys did.
I will respond as soon as I have the update.