当用户在列0中选择单元格时,如何更改DataGridView中的ColumnIndex

时间:2013-05-09 16:55:47

标签: datagridview

Visual Basic 2010 .NET,DataGridView,两列。当用户单击,选择焦点或将焦点放在第0列中时,要强制第1列为选定列。

If Me.DGV.Rows.Count > 0 Then
    If Me.DGV.CurrentCell.ColumnIndex = 0 Then                       ' if ColumnIndex 0
        Me.DGV.Item(1, Me.DGV.CurrentCell.RowIndex).Selected = True  ' change ColumnIndex to 1
    End If
End If

在不抛出异常的情况下,代码示例在任何Cell事件中都不起作用。它完美地适用于Button,但我需要这个代码在用户与DGV交互时运行

DGV的'CellClick'事件有点奏效。当我按住鼠标按钮时,将指针移动到上方或下方的行,并释放鼠标按钮,它会混乱

Private Sub DGV_CellClick(sender As Object, e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DGV.CellClick
    If Me.DGV.Rows.Count > 0 Then
        If e.ColumnIndex = 0 Then
            Me.DGV.Item(1, e.RowIndex).Selected = True
        End If
    End If
End Sub

DGV的“点击”事件按照我想要的方式运行,但更改列索引号时网格会闪烁?

Private Sub DGV_Click(sender As Object, e As System.EventArgs) Handles DGV.Click
    If Me.DGV.Rows.Count > 0 Then
        If Me.DGV.CurrentCell.ColumnIndex = 0 Then
            Me.DGV.Item(1, Me.DGV.CurrentCell.RowIndex).Selected = True 'This line causes a subtle 'flicker'
        End If
    End If
End Sub

1 个答案:

答案 0 :(得分:1)

以下示例代码段可以执行所需的操作(来源:http://msdn.microsoft.com/en-us/library/system.windows.forms.datagridview.cellclick.aspx)。请注意与您的问题相关的e.RowIndexe.ColumnIndex属性:

private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
{
    if (turn.Text.Equals(gameOverString)) { return; }

    DataGridViewImageCell cell = (DataGridViewImageCell)
        dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex];

    if (cell.Value == blank)
    {
        if (IsOsTurn())
        {
            cell.Value = o;
        }
        else
        {
            cell.Value = x;
        }
        ToggleTurn();
    }
    if (IsAWin())
    {
        turn.Text = gameOverString;
    }
}