winform中如何实现复制datagridview中的一行粘贴到最后一行，自动再添加一行空行，以便下次粘贴

Question

RT

Answer 1

下面代码是我的datagridview的复制代码,这个选择行是fullselect            //装载不重复的选中行号
            ArrayList arr = new ArrayList();
            for (int i = 0; i < grd.SelectedCells.Count; i++)
            {
                bool flag = true;
                for (int j = 0; j < arr.Count; j++)
                {
                    if (arr[j].ToString().Equals(grd.SelectedCells[i].RowIndex.ToString()))
                    {
                        flag = false;
                        break;
                    }
                }                if (flag)
                {
                    arr.Add(grd.SelectedCells[i].RowIndex.ToString());
                }
            }            //判断行号是顺序的还是倒序的,然后复制
            if (clsC.Cint(arr[0].ToString()) > clsC.Cint(arr[1].ToString()))
            {
                for (int i = arr.Count - 1; i >= 0; i--)
                {
                    int hang = grd.RowCount - 1;
                    grd.RowCount = grd.RowCount + 1;
                    grd.Rows[hang].Cells[0].Value = (clsC.Cint(grd.Rows[(hang - 1)].Cells[0].Value.ToString()) + 1).ToString();
                    grd.Rows[hang].Cells[1].Value = grd.Rows[clsC.Cint(arr[i].ToString())].Cells[1].Value.ToString();
                    grd.Rows[hang].Cells[2].Value = grd.Rows[clsC.Cint(arr[i].ToString())].Cells[2].Value.ToString();
                    grd.Rows[hang].Cells[3].Value = grd.Rows[clsC.Cint(arr[i].ToString())].Cells[3].Value.ToString();
                    grd.Rows[hang].Cells[4].Value = grd.Rows[clsC.Cint(arr[i].ToString())].Cells[4].Value.ToString();
                    if (grd.Rows[clsC.Cint(arr[i].ToString())].Cells[5].Value == null)
                    {
                        grd.Rows[hang].Cells[5].Value = "";
                    }
                    else
                    {
                        grd.Rows[hang].Cells[5].Value = grd.Rows[clsC.Cint(arr[i].ToString())].Cells[5].Value.ToString();
                    }                    if (grd.Rows[clsC.Cint(arr[i].ToString())].Cells[6].Value == null)
                    {
                        grd.Rows[hang].Cells[6].Value = "";
                    }
                    else
                    {
                        grd.Rows[hang].Cells[6].Value = grd.Rows[clsC.Cint(arr[i].ToString())].Cells[6].Value.ToString();
                    }
                }
            }
            else
            {
                for (int i = 0; i < arr.Count; i++)
                {
                    int hang = grd.RowCount - 1;
                    grd.RowCount = grd.RowCount + 1;
                    grd.Rows[hang].Cells[0].Value = (clsC.Cint(grd.Rows[(hang - 1)].Cells[0].Value.ToString()) + 1).ToString();
                    grd.Rows[hang].Cells[1].Value = grd.Rows[clsC.Cint(arr[i].ToString())].Cells[1].Value.ToString();
                    grd.Rows[hang].Cells[2].Value = grd.Rows[clsC.Cint(arr[i].ToString())].Cells[2].Value.ToString();
                    grd.Rows[hang].Cells[3].Value = grd.Rows[clsC.Cint(arr[i].ToString())].Cells[3].Value.ToString();
                    grd.Rows[hang].Cells[4].Value = grd.Rows[clsC.Cint(arr[i].ToString())].Cells[4].Value.ToString();
                    if (grd.Rows[clsC.Cint(arr[i].ToString())].Cells[5].Value == null)
                    {
                        grd.Rows[hang].Cells[5].Value = "";
                    }
                    else
                    {
                        grd.Rows[hang].Cells[5].Value = grd.Rows[clsC.Cint(arr[i].ToString())].Cells[5].Value.ToString();
                    }                    if (grd.Rows[clsC.Cint(arr[i].ToString())].Cells[6].Value == null)
                    {
                        grd.Rows[hang].Cells[6].Value = "";
                    }
                    else
                    {
                        grd.Rows[hang].Cells[6].Value = grd.Rows[clsC.Cint(arr[i].ToString())].Cells[6].Value.ToString();
                    }
                }
            }

Answer 2

利用剪贴板功能就能复制了吧？
//copy
        public void DataGridViewEnableCopy(DataGridView p_Data)
        {
            Clipboard.SetData(DataFormats.Text, p_Data.GetClipboardContent());
        }
只是粘贴的时候
public void DataGirdViewCellPaste(DataGridView p_Data)
        {
            //try
            //{
            //this.dataGridView1.BeginEdit(true);
            //this.dataGridView1.EditMode = DataGridViewEditMode.EditProgrammatically;
            
                // 获取剪切板的内容，并按行分割
                string pasteText = Clipboard.GetText().Replace ('\t',' ').Remove (0,1);
                if (string.IsNullOrEmpty(pasteText))
                    return;
                string[] lines = pasteText.Split(new char[] {' ', ' ' });
                DataGridViewRow dr = p_Data.Rows[p_Data.NewRowIndex];
                //p_Data.Rows.Add(dr);
                for (int i = 0; i < p_Data.Columns.Count; i++)
                {
                   dr.Cells[i].Value = lines[i];
                }
                p_Data.Rows.Add(dr);
                dataGridView1.AllowUserToAddRows = true ; 
                
                //this.dataGridView1.EndEdit();
            //}
        }总是提示我“当控件被数据绑定时，无法以编程方式向 DataGridView 的行集合中添加行”，不知如何是好？

Answer 3

这个报错是因为你的DataGridView是绑定的数据源,所以无法添加新行,你想要添加新行的话,你应该在最开始放数据到DataGridView的时候用代码放上去,而不是绑定数据源!我上面的方法是可以复制多行的代码