包含 MaskedTextBox 的 DataGridView 单元格中的焦点和双击问题

Focus and Double Click problem in a DataGridView cell that contains a MaskedTextBox

我在尝试编辑包含屏蔽文本框的单元格时遇到问题:

如果我尝试编辑我需要的字段:

  1. 双击该单元格(在此步骤中,屏蔽的文本框变为可见)
  2. 再次单击该字段开始编辑
  3. 将光标"manually"设置到maskedtextbox的第一个位置

(4.开始输入值)

是否可以通过某种方式避免 "manual" 聚焦到 maskedtextbox 的第一个位置? (例如在单击或双击时:将 maskedtextbox 设置为可见,同时将焦点/光标设置在 maskedtextbox 的第一个位置)

我试过:focus()、select()、SelectionStart、CurrentCell,但没有成功。

我通过以下方式将 MaskedTextbox 添加到 DataGridView 单元格:

public Insert()
    {
        InitializeComponent();

        this.maskedTextBox = new MaskedTextBox();

        this.maskedTextBox.Visible = false;

        this.dataGridView1.Controls.Add(this.maskedTextBox);

        this.dataGridView1.CellBeginEdit += new DataGridViewCellCancelEventHandler(dataGridView1_CellBeginEdit);

        this.dataGridView1.CellEndEdit += new DataGridViewCellEventHandler(dataGridView1_CellEndEdit);

        this.dataGridView1.Scroll += new ScrollEventHandler(dataGridView1_Scroll);
    }

    void dataGridView1_Scroll(object sender, ScrollEventArgs e)
    {
        if (this.maskedTextBox.Visible)
        {
            Rectangle rect = this.dataGridView1.GetCellDisplayRectangle(
                this.dataGridView1.CurrentCell.ColumnIndex,
                this.dataGridView1.CurrentCell.RowIndex, true);
            this.maskedTextBox.Location = rect.Location;
        }
    }
    void dataGridView1_CellBeginEdit(object sender, DataGridViewCellCancelEventArgs e)
    {
        if (e.ColumnIndex == this.dataGridView1.Columns[4].Index || e.ColumnIndex == this.dataGridView1.Columns[5].Index && e.RowIndex > -1)
        {
            string type = "";
            if (this.dataGridView1[e.ColumnIndex, e.RowIndex].Value != null)
                type = this.dataGridView1[e.ColumnIndex, e.RowIndex].Value.ToString();

            this.maskedTextBox.Mask = "0000.00.00";
            Rectangle rect =
               this.dataGridView1.GetCellDisplayRectangle(e.ColumnIndex, e.RowIndex, true);

            this.maskedTextBox.Location = rect.Location;
            this.maskedTextBox.Size = rect.Size;
            this.maskedTextBox.Text = "";

            if (this.dataGridView1[e.ColumnIndex, e.RowIndex].Value != null)
            {
                this.maskedTextBox.Text = this.dataGridView1[e.ColumnIndex,
                    e.RowIndex].Value.ToString();
            }
            this.maskedTextBox.Visible = true;
            this.maskedTextBox.Focus(); //tried
            this.maskedTextBox.Select(0, 0);
            this.maskedTextBox.SelectionStart =0 ;
            dataGridView1.CurrentCell = dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex];
        }
    }
void dataGridView1_CellEndEdit(object sender, DataGridViewCellEventArgs e)
        {
if (this.maskedTextBox.Visible && (e.ColumnIndex == this.dataGridView1.Columns["TEST"].Index && e.RowIndex > -1))
            {
                this.dataGridView1.CurrentCell.Value = maskedTextBox.Text;
                this.maskedTextBox.Visible = false;
            }
        }

在 BeginEdit 方法完成后控件可能需要获得焦点,所以尝试这样:

this.BeginInvoke(new Action(() => {
  this.maskedTextBox.Visible = true;
  this.maskedTextBox.Focus();
  this.maskedTextBox.Select(0, 0);
}));