Panel doesnt show real width

Question

Hi

Here is the situation:

Im dynamicaly adding buttons to panel using Panel.Controls.Add

All the buttons are lined up by increasing Location.x value of button

When button goes over panel borders the scroll bar appears

So far so good...

Now I dont want that scroll bar so i decide to put buttons that go outside the right side of panel

to put in lower line. 

But the thing is that the first button that goes out of sight has x cordinate of 1000 or something like that while panel width is only like 600?

Reason for this may be the fact that panel is anchored and my application on diferent resolution has different widths. 

But the funny thing is that also the parents of this panel are way too small (I mean their width atributes are smaller that the actual width of  window)

Does anyone know why this happens and how to get thre real width of panels?

Thanks in advance for answers.

---

Cheers!

Answer 1

But the thing is that the first button that goes out of sight has x cordinate of 1000 or something like that while panel width is only like 600?

- Could not reproduce. Are you sure about this ? Most probably it could be the location of last button in row which you dont see. It will be helpful if you post your code.


my code for reference,

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim buttons(10) As Button
        Dim xLoc, yLoc As Integer

        xLoc = 5
        yLoc = 15

        For i As Integer = 1 To 10
            buttons(i) = New Button
            With buttons(i)
                .Location = New Point(xLoc, yLoc)
                .Size = New Size(100, 100)
                .Text = .Location.ToString
            End With

            xLoc += 105

            If (xLoc + 100) > Panel1.Right Then
                xLoc = 5
                yLoc += 110
            End If

            Panel1.Controls.Add(buttons(i))
        Next
    End Sub

---

Thanks

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Answer 2

Is your panel docked?  Docking can give a false sense of width because the true width is overridden during docked display. 

Answer 3

Yes its docked. 

But still i think Width of panel should represent the real width of it... unless im adding buttons befor the docking has taken place...hmm

---

Cheers!

Answer 4

Here's the code:

            Dim row As DataRow

            Dim i As Byte = 0

            Dim x, y As Integer

            tblUzdevumi = ptblUzdevumi

            Dim xLoc, yLoc As Integer

            xLoc = 5

            yLoc = 15

            For Each row In tblUzdevumi.Rows

                i = i + 1

                ''creates button

                Dim cmdUzd As Infragistics.Win.Misc.UltraButton

                cmdUzd = New Infragistics.Win.Misc.UltraButton

                cmdUzd.Font = New System.Drawing.Font("Microsoft Sans Serif", 7.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(186, Byte))

                cmdUzd.Name = Convert.ToString(i)

                cmdUzd.Size = New System.Drawing.Size(27, 21)

                cmdUzd.TabIndex = i

                cmdUzd.Text = Convert.ToString(i)

                Me.ToolTip1.SetToolTip(cmdUzd, row.Item("Virsraksts"))

                ''sets location

                With cmdUzd

                    .Location = New Point(xLoc, yLoc)

                End With

                xLoc += 27

                If (xLoc + 27) > Me.SplitContainer1.Panel1.Right Then

                    xLoc = 5

                    yLoc += (5 + 21)

                End If

                Me.SplitContainer1.Panel1.Controls.Add(cmdUzd)

                pArrPogas.Add(cmdUzd)

                arrIrAtbildes.Add(False)

                arrIrSaubos.Add(False)

            Next

---

Cheers!

Answer 5

I tried your code with a button click (which is definitely after the form has loaded and initialized all docking) and it worked fine.  I got the buttons to wrap down within the panel.  You should know that once you get past 99 the last digit in the text gets cut off so either go with a wider button or a smaller font (unless you are sure it will never have more than 99 buttons.)

Also, you didn't mention it was a SplitContainer panel!  Not sure if it make a difference anyhow, but the SC panels are special controls with different functionality than the standard panel.

If you are indeed doing this is the form's Load handler then try placing this code in the Shown event instead - or just try it for testing by using a button -- that way you can see if the timing was really the issue.