Grid Problem

[solano]

Alright, I cannot figure out what I'm doing wrong here.

As some of you know I've been stripping out C1 out of my current project,
and going back to native .NET controls.

However, on one of my grids I have the following code...
.....
chargeRows = oCharges.GetOpenChargesByFamily(_iFamID, dtSearch)

Me.BindingContext(Me.DsTransactions1, "rltInvChg").SuspendBinding()

Me.DsTransactions1.rltInvChg.Rows.Clear()

Me.DsTransactions1.Merge(chargeRows)

Me.BindingContext(Me.DsTransactions1, "rltInvChg").ResumeBinding()

.....

It works fine the first time through.. then the second time... I get this
exception...

No value at index -1.

at System.Windows.Forms.CurrencyManager.get_Item(Int3 2 index)

at System.Windows.Forms.CurrencyManager.get_Current()

at Assetta.ColumnStyles.LabelColumn.Paint(Graphics g, Rectangle bounds,
CurrencyManager source, Int32 rowNum, Brush backBrush, Brush foreBrush,
Boolean alignToRight)

at System.Windows.Forms.DataGridRelationshipRow.Paint CellContents(Graphics
g, Rectangle cellBounds, DataGridColumnStyle column, Brush backBr, Brush
foreBrush, Boolean alignToRight)

at System.Windows.Forms.DataGridRow.PaintData(Graphic s g, Rectangle bounds,
Int32 firstVisibleColumn, Int32 columnCount, Boolean alignToRight)

at System.Windows.Forms.DataGridRelationshipRow.Paint (Graphics g, Rectangle
bounds, Rectangle trueRowBounds, Int32 firstVisibleColumn, Int32
numVisibleColumns, Boolean alignToRight)

at System.Windows.Forms.DataGrid.PaintRows(Graphics g, Rectangle&
boundingRect)

at System.Windows.Forms.DataGrid.PaintGrid(Graphics g, Rectangle gridBounds)

at System.Windows.Forms.DataGrid.OnPaint(PaintEventAr gs pe)

at System.Windows.Forms.Control.PaintWithErrorHandlin g(PaintEventArgs e,
Int16 layer, Boolean disposeEventArgs)

at System.Windows.Forms.Control.WmPaint(Message& m)

at System.Windows.Forms.Control.WndProc(Message& m)

at System.Windows.Forms.ControlNativeWindow.OnMessage (Message& m)

at System.Windows.Forms.ControlNativeWindow.WndProc(M essage& m)

at System.Windows.Forms.NativeWindow.DebuggableCallba ck(IntPtr hWnd, Int32
msg, IntPtr wparam, IntPtr lparam)

at System.Windows.Forms.UnsafeNativeMethods.DispatchM essageW(MSG& msg)

at
System.Windows.Forms.ComponentManager.System.Windo ws.Forms.UnsafeNativeMetho
ds+IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason,
Int32 pvLoopData)

at System.Windows.Forms.ThreadContext.RunMessageLoopI nner(Int32 reason,
ApplicationContext context)

at System.Windows.Forms.ThreadContext.RunMessageLoop( Int32 reason,
ApplicationContext context)

at System.Windows.Forms.Application.DoEvents()

It doesn't matter taht it is Assetta, this happens with the grid no matter
what. What am I clearly missing here...