TableLayoutPanel.GetControlFromPosition(Int32, Int32) 方法

public:
 System::Windows::Forms::Control ^ GetControlFromPosition(int column, int row);

public System.Windows.Forms.Control GetControlFromPosition(int column, int row);

public System.Windows.Forms.Control? GetControlFromPosition(int column, int row);

member this.GetControlFromPosition : int * int -> System.Windows.Forms.Control

Public Function GetControlFromPosition (column As Integer, row As Integer) As Control

参数

返回

占用指定单元格的子控件;否则， null 如果指定列和行中不存在任何控件，或者控件的属性 Visible 设置为 false。

例外

示例

下面的代码示例通过循环访问给定TableLayoutPanelColumnCount的列和行来枚举该单元格中的所有RowCount单元格位置，然后调用GetControlFromPosition该方法以检索每个单元格中的控件。

private void getcontrolFromPosBtn_Click(
    System.Object sender, 
    System.EventArgs e)
{
    int i = 0;
    int j = 0;
    Trace.WriteLine(this.TableLayoutPanel1.ColumnCount);
    Trace.WriteLine(this.TableLayoutPanel1.RowCount);

    for(i=0; i<=this.TableLayoutPanel1.ColumnCount; i++)
    {
        for(j=0; j<=this.TableLayoutPanel1.RowCount; j++)
        {
            Control c = this.TableLayoutPanel1.GetControlFromPosition(i, j);

            if( c != null )
            {
                Trace.WriteLine(c.ToString());
            }
        }
    }
}

Private Sub getcontrolFromPosBtn_Click( _
ByVal sender As System.Object, _
ByVal e As System.EventArgs) _
Handles getcontrolFromPosBtn.Click


    Trace.WriteLine(Me.TableLayoutPanel1.ColumnCount)
    Trace.WriteLine(Me.TableLayoutPanel1.RowCount)

    For i As Integer = 0 To Me.TableLayoutPanel1.ColumnCount - 1
        For j As Integer = 0 To Me.TableLayoutPanel1.RowCount - 1

            Dim c As Control = Me.TableLayoutPanel1.GetControlFromPosition(i, j)

            If c IsNot Nothing Then

                Trace.WriteLine(c.ToString())

            End If
        Next
    Next

End Sub

注解

列和行位置值基于零。

另请参阅

• GetRow(Control)
• GetColumn(Control)