DataGrid相关

private void datagrid_LoadingRow(object sender, DataGridRowEventArgs e)
        {
            e.Row.Header = e.Row.GetIndex() + 1;
        }

private void datagrid_PreviewKeyDown(object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Enter)
            {
                UIElement elementWithFocus = Keyboard.FocusedElement as UIElement;
                if (elementWithFocus == null) return;
                e.Handled = true;
                if (this.datagrid.CurrentCell.Column.DisplayIndex == this.datagrid.Columns.Count - 1)
                {
                    this.datagrid.CommitEdit(DataGridEditingUnit.Row, exitEditingMode: true);
                    elementWithFocus = Keyboard.FocusedElement as UIElement;
                }
                if (elementWithFocus != null)
                {
                    elementWithFocus.MoveFocus(new TraversalRequest(FocusNavigationDirection.Next));
                }
            }
        }
        private void datagrid_KeyDown(object sender, KeyEventArgs e)
        {
            datagrid.CanUserAddRows = false;
            if (ModifierKeys.Control == Keyboard.Modifiers && e.Key == Key.V)
            {
                DataGirdViewCellPaste();
            }
        }
        #region ctrl+c粘贴
        private void DataGirdViewCellPaste()
        {
            try
            {
                // 获取剪切板的内容，并按行分割   
                string pasteText = Clipboard.GetText();
                if (string.IsNullOrEmpty(pasteText))
                    return;
                int tnum = 0;//剪贴板列数
                int nnum = 0;//剪贴板行数
                //获得当前剪贴板内容的行、列数
                for (int i = 0; i < pasteText.Length; i++)
                {
                    if (pasteText.Substring(i, 1) == "\t")
                    {
                        tnum++;
                    }
                    if (pasteText.Substring(i, 1) == "\n")
                    {
                        nnum++;
                    }
                }
                Object[,] data;
                //粘贴板上的数据来自于EXCEL时，每行末都有\n，在DATAGRIDVIEW内复制时，最后一行末没有\n
                if (pasteText.Substring(pasteText.Length - 1, 1) == "\n")
                {
                    nnum = nnum - 1;
                }
                tnum = tnum / (nnum + 1);
                data = new object[nnum + 1, tnum + 1];//定义一个二维数组
                String rowstr;
                rowstr = "";
                //MessageBox.Show(pasteText.IndexOf("B").ToString());
                //对数组赋值
                for (int i = 0; i < (nnum + 1); i++)
                {
                    for (int colIndex = 0; colIndex < (tnum + 1); colIndex++)
                    {
                        //一行中的最后一列
                        if (colIndex == tnum && pasteText.IndexOf("\r") != -1)
                        {
                            rowstr = pasteText.Substring(0, pasteText.IndexOf("\r"));
                        }
                        //最后一行的最后一列
                        if (colIndex == tnum && pasteText.IndexOf("\r") == -1)
                        {
                            rowstr = pasteText.Substring(0);
                        }
                        //其他行列
                        if (colIndex != tnum)
                        {
                            rowstr = pasteText.Substring(0, pasteText.IndexOf("\t"));
                            pasteText = pasteText.Substring(pasteText.IndexOf("\t") + 1);
                        }
                        data[i, colIndex] = rowstr;
                    }
                    //截取下一行数据
                    pasteText = pasteText.Substring(pasteText.IndexOf("\n") + 1);
                }
                //获取获取当前选中单元格所在的行序号
                int rowindex = datagrid.SelectedIndex;
            }
            catch
            {
                MessageBox.Show("粘贴区域大小不一致");
                return;
            }
        }
        #endregion
        private void btn_add_Click(object sender, RoutedEventArgs e)
        {
            this.datagrid.CanUserAddRows = true;
        }