有没有办法从TableLayoutPanel中的行中删除所有控件？

Question

我动态地为TableLayoutPanel生成控件.我在每一行都有一个删除按钮.当我点击它时,必须删除该行.

    Dim removeBtn As New Button
    AddHandler removeBtn.Click, AddressOf DeleteRow
    tlp.Controls.Add(removeBtn, 5, rowCount)

我没有显示添加类似于上面的文本框的代码.我可以得到点击按钮的行号.使用此,如何从此行中删除所有控件.

Private Sub DeleteRow(ByVal sender As System.Object, ByVal e As System.EventArgs)
   Dim currentRow As Integer = CType(CType(sender, Button).Parent, TableLayoutPanel).GetRow(CType(sender, Button))
   'Using this currentRow, how to delete this Row
End Sub

Answer 1

基本上你必须:

• 从该行获取控件列表并从TLP中删除它们
• 从TLP中删除相应的行样式
• 为删除后的每一行中的每个控件设置新行索引
• 减少RowCount

这是用于执行相同操作的VB.NET代码.

Public Sub RemoveRow(ByRef panel As TableLayoutPanel, ByRef rowIndex As Integer)

    panel.RowStyles.RemoveAt(rowIndex)
    Dim columnIndex As Integer
    For columnIndex = 0 To panel.ColumnCount - 1
        Dim Control As Control = panel.GetControlFromPosition(columnIndex, rowIndex)
        panel.Controls.Remove(Control)
    Next
    Dim i As Integer
    For i = rowIndex + 1 To panel.RowCount - 1
        columnIndex = 0
        For columnIndex = 0 To panel.ColumnCount - 1
            Dim control As Control = panel.GetControlFromPosition(columnIndex, i)
            panel.SetRow(control, i - 1)
        Next
    Next
    panel.RowCount -= 1
End Sub

这是一个C#扩展方法,它将为您执行此操作.

public static void RemoveRow(this TableLayoutPanel panel, int rowIndex)
{
    panel.RowStyles.RemoveAt(rowIndex);

    for (int columnIndex = 0; columnIndex < panel.ColumnCount; columnIndex++)
    {
        var control = panel.GetControlFromPosition(columnIndex, rowIndex);
        panel.Controls.Remove(control);
    }

    for (int i = rowIndex + 1; i < panel.RowCount; i++)
    {
        for (int columnIndex = 0; columnIndex < panel.ColumnCount; columnIndex++)
        {
            var control = panel.GetControlFromPosition(columnIndex, i);
            panel.SetRow(control, i - 1);
        }
    }

    panel.RowCount--;
}