TableLayoutPanel中GetCellPosition和GetPositionFromControl，他们如何不同？ [英] TableLayoutPanel GetCellPosition and GetPositionFromControl, how do they differ?

问题描述

这可能看起来陈腐的问题，但我觉得这些方法缺乏任何细节的微软文档。

This may seem a trite question but I find the Microsoft documentation on these methods lacking in any detail.

在<一的区别是什么href="http://msdn.microsoft.com/en-us/library/system.windows.forms.tablelayoutpanel.getcellposition.aspx"相对=nofollow> TablelLayoutPanel.GetCellPosition（控制控制） 和<一href="http://msdn.microsoft.com/en-us/library/system.windows.forms.tablelayoutpanel.getpositionfromcontrol.aspx"相对=nofollow> TableLayoutPanel.GetPositionFromControl（控制控制） ？

我使用的.NET Framework 4

I'm using .NET Framework 4

推荐答案

GetCellPosition 得到控制，所宣称的位置为 GetPositionFromControl 获得的实际位置的TableLayoutPanel 已决定了控制。这些是在大多数情况下是相同的。通过编程设置几个控件的同一个单元格（或重叠细胞 Col​​umnSpan 或 ROWSPAN ），看看结果如何区别

GetCellPosition gets the declared position of the control, where as GetPositionFromControl gets the actual position the TableLayoutPanel has decided for the control. These are the same in most cases. Programatically set several controls to the same cell (or overlapping cells with ColumnSpan or RowSpan,) and see how the results differ.

添加一个TableLayoutPanel到窗体并复制以下code。运行它，并点击一个标签看看二者的区别。

Add a TableLayoutPanel to a Form and copy the following code. Run it and click on a Label to see the difference.

Public Class Form1

    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        For Index As Integer = 0 To 4
            Dim Control As New Label
            Control.Text = String.Format("Control {0}", Index)
            AddHandler Control.Click, AddressOf Control_Click
            TableLayoutPanel1.Controls.Add(Control, 0, 0)
        Next
    End Sub

    Private Sub Control_Click(sender As Object, e As EventArgs)
        Dim Pos1 As TableLayoutPanelCellPosition = TableLayoutPanel1.GetPositionFromControl(sender)
        Dim Pos2 As TableLayoutPanelCellPosition = TableLayoutPanel1.GetCellPosition(sender)
        Dim Text As String = String.Format("GetPositionFromControl = {0},{1}" & vbCrLf & "GetCellPosition = {2},{3}", Pos1.Column, Pos1.Row, Pos2.Column, Pos2.Row)
        MessageBox.Show(Text)
    End Sub
End Class

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