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我正在开发一个带有datagridview.

我希望让用户在datagridviewcell.

首先，我使用此代码来格式化单元格

private void EditingControl_KeyPress(object sender, KeyPressEventArgs e)
    {
        if (!char.IsControl(e.KeyChar))
        {
            Control editingControl = (Control)sender;
            if (!Regex.IsMatch(editingControl.Text + e.KeyChar, pattern))
                e.Handled = true;
        }
    }
     private string pattern = "^[0-9]{0,2}$";
    private void dataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
    {
        dataGridView1.EditingControl.KeyPress -= EditingControl_KeyPress;
        dataGridView1.EditingControl.KeyPress += EditingControl_KeyPress;
    }

但单元格只能让用户输入 3 个整数。所以我使用另一种模式来格式化单元格

private void EditingControl_KeyPress(object sender, KeyPressEventArgs e)
    {
        if (!char.IsControl(e.KeyChar))
        {
            Control editingControl = (Control)sender;
            if (!Regex.IsMatch(editingControl.Text + e.KeyChar, pattern))
                e.Handled = true;
        }
    }
    private string pattern = "^([0]?[1-9]|[1|2][0-9]|[3][0|1])[./-]([0]?[1-9]|[1][0-2])[./-]([0-9]{4}|[0-9]{2})$";

    private void dataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
    {
        dataGridView1.EditingControl.KeyPress -= EditingControl_KeyPress;
        dataGridView1.EditingControl.KeyPress += EditingControl_KeyPress;
    }

但是我不能再使用这种模式在单元格上输入任何内容。

如何格式化可以让用户输入这样格式的日期的单元格yyyy-MM-dd？

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0 回答 0