Problems positioning child window in a parent

Posted on 2011-02-26
Last Modified: 2012-05-11
Hi there,

OK this one has me completely stumped. I have a parent container with which I can open a number of child windows within it.  All my other windows open at the top left corner.

Although I go through a bit of gymnastics to obtain the size of the window I have used the line:

Me.Location = New Point(0, 0)

Instead it displays down and to the right. If I close it and then open it again it displays further down and further right...

I have used the same process for the other child windows and they open correctly at the top left corner...

So, any ideas?


Public Sub setFormWidth() Implements accountINTERFACE.IfrmAccountDisplay.setFormWidth

            If Me.WindowState <> formWindowState.Maximized Then

                Dim totalWidth = 0
                Dim MaxWidth = 0
                Dim maxRows = 0
                Dim assetMaxWidth = 0
                Dim liabilityMaxWidth = 0
                Dim equityMaxWidth = 0
                Dim revenueMaxWidth = 0
                Dim expenseMaxWidth = 0

                Dim ToDo = 0
                Dim ds As System.Drawing.Graphics = CreateGraphics()

                maxRows = Math.Max(maxRows, dgvAssets.RowCount)
                maxRows = Math.Max(maxRows, dgvLiabilities.RowCount)
                maxRows = Math.Max(maxRows, dgvEquity.RowCount)
                maxRows = Math.Max(maxRows, dgvRevenue.RowCount)
                maxRows = Math.Max(maxRows, dgvExpenses.RowCount)

                Do While ToDo < maxRows

                    If ToDo < dgvAssets.RowCount Then

                        assetMaxWidth = Math.Max(assetMaxWidth, ds.MeasureString(dgvAssets.Rows(ToDo).Cells("acc_name").Value, Font).Width)

                    End If

                    If ToDo < dgvLiabilities.RowCount Then

                        liabilityMaxWidth = Math.Max(liabilityMaxWidth, ds.MeasureString(dgvLiabilities.Rows(ToDo).Cells("acc_name").Value, Font).Width)

                    End If

                    If ToDo < dgvEquity.RowCount Then

                        equityMaxWidth = Math.Max(equityMaxWidth, ds.MeasureString(dgvEquity.Rows(ToDo).Cells("acc_name").Value, Font).Width)

                    End If

                    If ToDo < dgvRevenue.RowCount Then

                        revenueMaxWidth = Math.Max(revenueMaxWidth, ds.MeasureString(dgvRevenue.Rows(ToDo).Cells("acc_name").Value, Font).Width)

                    End If

                    If ToDo < dgvExpenses.RowCount Then

                        expenseMaxWidth = Math.Max(expenseMaxWidth, ds.MeasureString(dgvExpenses.Rows(ToDo).Cells("acc_name").Value, Font).Width)

                    End If

                    ToDo += 1


                'Now determine the extra width needed if there are vertical scroll bars present.
                If (dgvAssets.DisplayRectangle.Width < dgvAssets.ClientRectangle.Width) Then

                    assetMaxWidth = assetMaxWidth + SystemInformation.VerticalScrollBarWidth

                ElseIf (dgvLiabilities.DisplayRectangle.Width < dgvLiabilities.ClientRectangle.Width) Then

                    liabilityMaxWidth = liabilityMaxWidth + SystemInformation.VerticalScrollBarWidth

                ElseIf (dgvEquity.DisplayRectangle.Width < dgvEquity.ClientRectangle.Width) Then

                    equityMaxWidth = equityMaxWidth + SystemInformation.VerticalScrollBarWidth

                ElseIf (dgvRevenue.DisplayRectangle.Width < dgvRevenue.ClientRectangle.Width) Then

                    revenueMaxWidth = revenueMaxWidth + SystemInformation.VerticalScrollBarWidth

                ElseIf (dgvExpenses.DisplayRectangle.Width < dgvExpenses.ClientRectangle.Width) Then

                    expenseMaxWidth = expenseMaxWidth + SystemInformation.VerticalScrollBarWidth

                End If

                If assetMaxWidth < 150 Then assetMaxWidth = 150
                If liabilityMaxWidth < 150 Then liabilityMaxWidth = 150
                If equityMaxWidth < 150 Then equityMaxWidth = 150
                If revenueMaxWidth < 150 Then revenueMaxWidth = 150
                If expenseMaxWidth < 150 Then expenseMaxWidth = 150

                assetMaxWidth = Fix(assetMaxWidth)
                liabilityMaxWidth = Fix(liabilityMaxWidth)
                equityMaxWidth = Fix(equityMaxWidth)
                revenueMaxWidth = Fix(revenueMaxWidth)
                expenseMaxWidth = Fix(expenseMaxWidth)

                assetSplitterDistance = assetMaxWidth + 44
                liabilitiesSplitterDistance = liabilityMaxWidth + 44
                equitySplitterDistance = equityMaxWidth + 44
                revenueSplitterDistance = revenueMaxWidth + 44
                expenseSplitterDistance = expenseMaxWidth + 44

                Me.Width = assetSplitterDistance + liabilitiesSplitterDistance + equitySplitterDistance + revenueSplitterDistance + expenseSplitterDistance + 20
                formWidth = Me.Width

                spcAssets.SplitterDistance = assetSplitterDistance
                spcLiabilities.SplitterDistance = liabilitiesSplitterDistance
                spcEquity.SplitterDistance = equitySplitterDistance
                spcRevExp.SplitterDistance = revenueSplitterDistance - 4

                Me.Location = New Point(0, 0)

                'Me.MaximumSize = New System.Drawing.Size(Me.Width, Me.MdiParent.DisplayRectangle.Height - 195)
                'Me.MinimumSize = New System.Drawing.Size(Me.Width, Me.MdiParent.DisplayRectangle.Height - 195)

                'Clean up the drawing surface

            End If

            loadedAgain = True

        Catch ex As Exception

            manageWindowsViewError("accountTASK", "frmAccountDisplay", "displayAccountsInDGV", ex)

        End Try

    End Sub

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Question by:si2030
LVL 33

Accepted Solution

jppinto earned 500 total points
Comment Utility
_frmChildForm.MdiParent = Me.MdiParent
_frmChildForm.StartPosition = FormStartPosition.Manual
_frmChildForm.Location = System.Drawing.Point(0,0)

Author Closing Comment

Comment Utility
This actually did work although I am not quite sure why I needed to include formstartpoint.manual to make this happen...

                Me.StartPosition = FormStartPosition.Manual
                Me.Location = New Point(0, 0)

Thanks :)

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