Programatically creating and fetching controls in TablelayoutPanel in Windows application.

Tablelayoutpanel can arrange the controls in the cells by defining the column and row number. We can add controls by defining the column and row Number.

Add a TableLayoutPanel control in the form and name it as “TablelayoutPnl”.

Dim IDLbl As New Label
IDLbl.Name = "ID"
IDLbl.Size = New System.Drawing.Size(10, 17)
IDLbl.Text = "Test"               
Dim IDpos As New TableLayoutPanelCellPosition(0, 0)
TablelayoutPnl.SetCellPosition(IDLbl, IDpos)
TablelayoutPnl.Controls.Add(IDLbl)
 
Dim NameTxt As New TextBox
NameTxt.Size = New System.Drawing.Size(100, 17)
NameTxt.Text = "Test Data"
Dim NamePos As New TableLayoutPanelCellPosition(1, 0)
TablelayoutPnl.SetCellPosition(NameTxt, NamePos)
TablelayoutPnl.Controls.Add(NameTxt)

Here one label and text box will be created in the first row in the first and second cell respectively.TableLayoutPanelCellPosition takes two parameters column and row. we can increase the row number in a for…loop if we want to create more number of rows.

Fetching controls in TableLayoutPanel
 
Dim ctrlInLastRow(TablelayoutPnl.ColumnCount - 1) As Control
 
Dim IDLbl As New Label
Dim NameTxt As New TextBox
 
Dim IDStr As String = String.Empty
Dim NameStr As String = String.Empty
 
 
          For Each ctrl As Control In TablelayoutPnl.Controls
             
                Dim cell As TableLayoutPanelCellPosition = TablelayoutPnl.GetCellPosition(ctrl)
 
                If cell.Row = TablelayoutPnl.GetRow(ctrl) Then
                    ctrlInLastRow(cell.Column) = ctrl
                    Select Case cell.Column
                       Case 0
                        IDLbl = CType(ctrl, Label)
                        IDStr = IDLbl.Text
                       Case 2
                        NameTxt= CType(ctrl, TextBox)
                        NameStr = NameTxt.Text
 
                    End Select
                End If
            Next

Here we can get the created label and text box’s values according to the cell in the TablelayoutPanel.