Question

我有一个简单的dataGridView填充了东西，现在我希望能够右键单击左侧突出显示整行，这样我就可以插入或删除整行。我已经搜索了一段时间，但大部分时间都是针对单个单元格，我正在寻找在整行上使用的上下文菜单。

还有一个类似的问题，但最终并不完全是我试图做的事情。

提前谢谢!!

Answer 1

我找到了一种非常简单的方法来做我想做的事情。它是这样的：

首先，挂钩mouseDown事件：

dataGridView1.MouseDown += new MouseEventHandler(this.dataGridView1_MouseClick);

然后，创建与mouseDown事件共同响应的例程..

 private void dataGridView1_MouseClick(Object sender, MouseEventArgs e)
    {
        if (e.Button == MouseButtons.Right)
        {
            ContextMenu cm = new ContextMenu();
            this.ContextMenu = cm;
            cm.MenuItems.Add(new MenuItem("&Cut", new System.EventHandler(this.cut_Click)));
            cm.MenuItems.Add(new MenuItem("&Copy", new System.EventHandler(this.copy2_Click)));
            cm.MenuItems.Add(new MenuItem("&Paste", new System.EventHandler(this.paste2_Click)));



            cm.Show(this, new Point(e.X, e.Y));
        }

    }

然后添加您的事件例程，例如：

private void cut_Click(Object sender, EventArgs e)
    {
        if (this.dataGridView1.GetCellCount(DataGridViewElementStates.Selected) > 0)
        {
            try
            {
                Clipboard.SetDataObject(this.dataGridView1.GetClipboardContent());
            }
            catch (System.Runtime.InteropServices.ExternalException)
            {
                MessageBox.Show("Clipboard could not be accessed. Please try again.");
            }
        }

        if (this.dataGridView1.SelectedRows.Count > 0)
        {
            dataGridView1.Rows.RemoveAt(this.dataGridView1.SelectedRows[0].Index);
        }

    }

将复制的单元格添加到剪贴板。然后粘贴它们，例如：

private void paste2_Click(Object sender, EventArgs e)
    {
        char[] rowSplitter = { '\r', '\n' };
        char[] columnSplitter = { '\t' };

        // Get the text from clipboard
        IDataObject dataInClipboard = Clipboard.GetDataObject();
        string stringInClipboard = (string)dataInClipboard.GetData(DataFormats.Text);

        // Split it into lines
        string[] rowsInClipboard = stringInClipboard.Split(rowSplitter, StringSplitOptions.RemoveEmptyEntries);

        // Get the row and column of selected cell in grid
        int r = dataGridView1.SelectedCells[0].RowIndex;
        int c = dataGridView1.SelectedCells[0].ColumnIndex;

        // Add rows into grid to fit clipboard lines
        if (dataGridView1.Rows.Count < (r + rowsInClipboard.Length))
        {
            dataGridView1.Rows.Add(r + rowsInClipboard.Length - dataGridView1.Rows.Count);
        }

        // Loop through the lines, split them into cells and place the values in the corresponding cell.
        for (int iRow = 0; iRow < rowsInClipboard.Length; iRow++)
        {
            // Split row into cell values
            string[] valuesInRow = rowsInClipboard[iRow].Split(columnSplitter);

            // Cycle through cell values
            for (int iCol = 0; iCol < valuesInRow.Length; iCol++)
            {

                // Assign cell value, only if it within columns of the grid
                if (dataGridView1.ColumnCount - 1 >= c + iCol)
                {
                    DataGridViewCell cell = dataGridView1.Rows[r + iRow].Cells[c + iCol];

                    if (!cell.ReadOnly)
                    {
                        cell.Value = valuesInRow[iCol+1];
                    }
                }
            }
        }
    }

我使用[col + 1]因为列表中的第一项始终是空白（“”）。希望这有助于某人。这个对我有用！：d

在dataGridView上为整行创建右键菜单

1 个答案: