2

有人可以建议如何做到这一点吗?

目前我有:

  1. 具有四列的 DataGridView - Text1 | 文本2 | 编辑按钮 | 保存按钮
  2. 当我单击 Text1 时,它变成一个可编辑字段,我可以更改它的值
  3. 然后我尝试编辑 Text2 但单击此单元格将我的更改保存在 Text1

问题是:当我尝试编辑第二个字段(Text2)时,第一个(Text1)失去焦点,退出编辑模式并保存我所做的更改,同时我想同时保存一行中的所有更改。

我想实现的:

  1. 我按下 EditButton,所有单元格都变成可编辑的,所以我可以连续更改任何单元格的值
  2. 我更改 Text1 的值,然后更改 Text2 的值
  3. 只有当我按下 SaveButton 时,它才会保存所做的更改

问题是:如何在我按下特定按钮之前将所有单元格保持在编辑模式下?

4

2 回答 2

2

也许您可以像这样使用自定义 DataGridView

public class CustomDGV : DataGridView
{
    private object _cellValue;
    private Dictionary<int, object[]> _pendingChanges;

    public CustomDGV()
    {
        _pendingChanges = new Dictionary<int, object[]>();
    }

    protected override void OnCellBeginEdit(DataGridViewCellCancelEventArgs e)
    {
        // Save the value of the cell before edit
        _cellValue = this[e.ColumnIndex, e.RowIndex].Value;

        // If there's already a pending change for that cell, display the edited value
        if (_pendingChanges.ContainsKey(e.RowIndex))
        {
            this[e.ColumnIndex, e.RowIndex].Value = _pendingChanges[e.RowIndex][e.ColumnIndex];
        }

        base.OnCellBeginEdit(e);
    }

    protected override void OnCellEndEdit(DataGridViewCellEventArgs e)
    {
        // Adds the edited value of the cell into a dictionary
        if (!_pendingChanges.ContainsKey(e.RowIndex))
        {
            _pendingChanges.Add(e.RowIndex, new object[this.ColumnCount]);
        }

        _pendingChanges[e.RowIndex][e.ColumnIndex] = this[e.ColumnIndex, e.RowIndex].Value;

        // Display the "old" value
        this[e.ColumnIndex, e.RowIndex].Value = _cellValue;
    }

    public void SavePendingChanges(int rowIndex)
    {
        if (_pendingChanges.ContainsKey(rowIndex))
        {
            // Gets the pending changes for that row
            var rowData = _pendingChanges[rowIndex];
            // Update every cell that's been edited
            for(int i = 0; i < rowData.Length; i++)
            {
                if (rowData[i] != null)
                    this[i, rowIndex].Value = rowData[i];
            }
            // Removes the pending changes from the dictionary once it's saved
            _pendingChanges.Remove(rowIndex);
        }
    }
}

在 CellContentClick 上,您可以调用 SavePendingChanges()

private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
{
    if (e.ColumnIndex > -1 && e.RowIndex > -1)
    {
        if (e.ColumnIndex == 3) // Save button
        {
            dataGridView1.SavePendingChanges(e.RowIndex);
        }
    }
}
于 2013-08-21T07:39:47.910 回答
0

好的,我知道它可能看起来有点乱,但这似乎是我能想到的最简单的解决方案——当网格进入编辑模式时,在每个只读单元格上显示 TextBox:

public void DisplayEditors(DataGridView grid, DataGridViewRow row)
        {
            foreach (DataGridViewCell cell in row.Cells)
            {
                if (cell.ReadOnly == false)
                {
                    var place = grid.GetCellDisplayRectangle(cell.ColumnIndex, cell.RowIndex, true);
                    var name = string.Format("EDITOR-{0}-{1}", cell.ColumnIndex, cell.RowIndex);
                    var editor = grid.Controls.Find(name, false).FirstOrDefault();

                    if (editor == null)
                    {
                        editor = new TextBox();

                        (editor as TextBox).Name = name;

                        grid.Controls.Add(editor);
                    }
                    else
                    {
                        editor.Show();
                    }

                    editor.Size = place.Size;
                    editor.Location = place.Location;
                    editor.Text = Convert.ToString(cell.Value);
                }
            }
        }
于 2013-08-21T20:58:25.320 回答