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C#ListView标签编辑在特定列上

edit listview winforms c#

pradeepradyumna · 技术社区 · 7 年前

我有一个包含两列的列表视图 LabelEdit = true . 现在我已经编写了以下代码 KeyDown 事件

            if (e.KeyData == Keys.F2 && lvwColumns.SelectedItems.Count > 0)
            {
                lvwColumns.SelectedItems[0].BeginEdit();
                return;
            }

每当我按F2键时,第一列将启用编辑。是否可以在第二列中进行编辑?

1 回复 | 直到 7 年前

Z.R.T. 7 年前

我认为listViewSubItem在UI中是不可编辑的。你可以发挥你的想象力,把文本框放在你想要编辑的单元格上

    TextBox txtBox1 = new TextBox();
    private int subItemIndex = 0;
    private ListViewItem viewItem;

    private int? xpos = null;
    private void listView_Click(object sender, EventArgs e)
    {
        xpos = MousePosition.X - listView.PointToScreen(Point.Empty).X;
    } 

    public MainForm()
    {
        InitializeComponent();
        listView.Controls.Add(txtBox1);
        txtBox1.Visible = false;
        txtBox1.KeyPress += (sender, args) =>
        {
            TextBox textBox = sender as TextBox;

            if ((int)args.KeyChar == 13)
            {
                if (viewItem != null)
                {
                    viewItem.SubItems[subItemIndex].Text = textBox.Text;
                }
                textBox.Visible = false;
            }
        };
    }

        private void listView_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyData == Keys.F2 && listView.SelectedItems.Count > 0)
            {
                viewItem = listView.SelectedItems[0];
                var bounds = viewItem.Bounds;
                var col2_bounds = viewItem.SubItems[1].Bounds;
                var col1_bounds = viewItem.SubItems[0].Bounds;
                col1_bounds.Width -= col2_bounds.Width;


                if (xpos > col2_bounds.X)
                {
                    subItemIndex = 1;
                    txtBox1.SetBounds(col2_bounds.X, bounds.Y, col2_bounds.Width, bounds.Height);
                }
                else
                {
                    subItemIndex = 0;
                    txtBox1.SetBounds(col1_bounds.X, bounds.Y, col1_bounds.Width, bounds.Height);
                }
                txtBox1.Text = string.Empty;
                txtBox1.Visible = true;
            }
        }