[RESOLVED] Datagrid single line selection

[TDQWERTY]

I've been having troubles in doing single line selections in WM6.5 on DataGrid control, does anyone find a way to go around this problem?

Thanks in advance

[TDQWERTY]

Anyone?

[TDQWERTY]

This code might be used in my other thread about datagrid ClearSelection.

Finally i came across a possible answer, it's a very rude answer though, maybe someone will have a better idea for best performance at least.

Private Sub DataGridEntidades_MouseUp(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles DataGridEntidades.MouseUp
        Try
            Dim arrRows As ArrayList = CType(DataGridEntidades.GetType().GetField("m_rlrow", BindingFlags.NonPublic Or BindingFlags.Static Or BindingFlags.Instance).GetValue(DataGridEntidades), ArrayList)
            Dim i As Integer
            If DataGridEntidades.CurrentRowIndex >= 0 Then
                For i = 0 To arrRows.Count - 1 Step 1
                    If i = DataGridEntidades.HitTest(e.X, e.Y).Row Then
                        DataGridEntidades.CurrentRowIndex = i
                        DataGridEntidades.Select(i)
                    Else
                        DataGridEntidades.UnSelect(i)
                    End If
                Next
                Dim localPoint As New Point
                localPoint.X = MousePosition.X
                localPoint.Y = MousePosition.Y
                ContextMenu1.Show(Me, localPoint)
            End If
        Catch ex As Exception
            '
        End Try
    End Sub

I guess that this code won't need any explanations since it's a quite simple way to deselect rows. Hopefully someone will turbocharge this code

Performance on:
WM6.5 Professional
Samsung Omnia I
DataGrid using custom columns
Using databinding with 3600 rows

Time to unselect all rows, select only one row and show the ContextMenu, took not more then 0.4 secs

[TDQWERTY]

Other hidden properties that can be used as well

m_kcxDefaultColWidth, System.Int32
m_kfDefaultVScrollVisible, System.Boolean
m_kfDefaultHScrollVisible, System.Boolean
m_kfDefaultColumnHeadersVisible, System.Boolean
m_kfDefaultRowHeadersVisible, System.Boolean
v_xyDpi, System.Int32
v_cxDefaultWidth, System.Int32
v_cyDefaultHeight, System.Int32
v_cxyDefaultBorderWidth, System.Int32
v_cxyDefaultGridLineWidth, System.Int32
v_nDefaultTextInset, System.Int32
v_cxyDefaultResizePixel, System.Int32
v_cxDefaultRowHdrWidth, System.Int32
v_cxAutoGenColWidth, System.Int32
v_cxyMinRowColWidth, System.Int32
m_renderer, System.Windows.Forms.GridRenderer
m_tabstycol, System.Windows.Forms.GridTableStylesCollection
m_tabstyActive, System.Windows.Forms.DataGridTableStyle
m_objDataSource, System.Object
m_cmData, System.Windows.Forms.CurrencyManager
m_rlrow, System.Collections.ArrayList
m_pdcolData, System.ComponentModel.PropertyDescriptorCollection
m_fListHandlerActive, System.Boolean
m_irowVisibleFirst, System.Int32
m_irowVisibleLast, System.Int32
m_crowVisible, System.Int32
m_cyRow, System.Int32
m_prefferedRowHeight, System.Int32
m_fRowHeadersVis, System.Boolean
m_icolVisibleFirst, System.Int32
m_icolVisibleLast, System.Int32
m_ccolVisible, System.Int32
m_cyColumnHeader, System.Int32
m_fColHeadersVis, System.Boolean
m_fValidColsSet, System.Boolean
m_icolValidFirst, System.Int32
m_icolValidLast, System.Int32
m_curcell, System.Windows.Forms.DataGridCurrentCell
m_fColResizeActive, System.Boolean
m_fRowResizeActive, System.Boolean
m_irowcolResize, System.Int32
m_xyResizeCur, System.Int32
m_xyResizeLast, System.Int32
m_xyResizeMax, System.Int32
m_xyResizeMin, System.Int32
m_fRowSelectDragActive, System.Boolean
m_sbHorz, System.Windows.Forms.HScrollBar
m_sbVert, System.Windows.Forms.VScrollBar
m_yRenderLast, System.Int32
m_xRenderLast, System.Int32
CurrentCellChanged, System.EventHandler
m_hwn, System.IntPtr
m_gch, System.Runtime.InteropServices.GCHandle
m_wnt, Microsoft.AGL.Forms.WNT
m_thread, System.Threading.Thread
m_mnucOwned, System.Windows.Forms.ContextMenu
m_mnucFloating, System.Windows.Forms.ContextMenu
m_qutaskInvoke, System.Collections.Queue
m_dataBindings, System.Windows.Forms.ControlBindingsCollection
m_bindingContext, System.Windows.Forms.BindingContext
m_fDisposed, System.Boolean
m_fCalledDispose, System.Boolean
m_fDestroyed, System.Boolean
m_fEnabledReal, System.Boolean
m_objTag, System.Object
m_strName, System.String
m_cLayoutSuspend, System.Int32
m_fScrollableSav, System.Boolean
m_fMousePressed, System.Boolean
m_fFocusAttempt, System.Boolean
m_fSkipValidation, System.Boolean
m_bsRequiredScaling, System.Windows.Forms.BoundsSpecified
m_cSuspendValidation, System.Int16
m_fParentedOrOwned, System.Boolean
m_context, System.Windows.Forms.ApplicationThreadContext
m_rlctlChildren, System.Collections.ArrayList