gridview-

 private void gridView1_RowCellClick(object sender, RowCellClickEventArgs e)
        {
//及时更新点击行数据
this.gridView1.UpdateCurrentRow();
GridView view = (GridView)sender;
//点击行
DataRow dr = view.GetFocusedDataRow();
//设置列属性
 gridView1.Columns[列名].OptionsColumn.AllowEdit = false;
 gridView1.Columns[列名].OptionsColumn.ReadOnly = true;
｝

 //http://www.cnblogs.com/wuhuacong/archive/2012/07/17/2595182.html

//将gridView1转换为datatable

 m_tblDataList = ((DataView)this.gridView1.DataSource).Table.Copy();

//添加表格列

m_tblDataList.Columns.Add(t_stockindetail.gwet, typeof(float));

//设置表格列默认值
m_tblDataList.Columns[t_stockindetail.gwet].DefaultValue = 0;

 //宽度自适应，可以出现滚动条

 this.gridView1.BestFitColumns();

//宽度自适应，但是不出现滚动条

 gridView1.OptionsView.ColumnAutoWidth = true;

namespace RowCellStyle
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            DataTable dt = new DataTable();
            dt.Columns.Add("a");
            dt.Columns.Add("s");
            dt.Columns.Add("d");
            dt.Columns.Add("f");
            DataRow dr = dt.NewRow();
            dt.Rows.Add(dr);

            gridControl1.DataSource = dt;
        }

        private void gridView1_CellValueChanged(object sender, DevExpress.XtraGrid.Views.Base.CellValueChangedEventArgs e)
        {
            try
           {
               
                DataTable dt = (DataTable)gridControl1.DataSource;
                if (!string.IsNullOrEmpty(dt.Rows[(dt.Rows.Count - 1)]["a"].ToString()))
                {
                    DataRow dr = dt.NewRow();
                    dt.Rows.Add(dr);

                    gridControl1.DataSource = dt;

                }
                
                    bool isCheck = true;

                    for (int i = 0; i < dt.Rows.Count -2; i++)
                    {
                        if (dt.Rows[i]["a"].ToString().Equals(dt.Rows[(dt.Rows.Count - 2)]["a"].ToString()))
                        {
                            MessageBox.Show("主键不能相同");
                            isCheck = false;
                            break;
                        }
                    }
                    
                    if (!isCheck)
                    {
                        return;
                    }
                GridView view = (GridView)sender;
                //获取选中行的列a的值
                string str_a = view.GetFocusedRowCellValue("a").ToString();
                SetGridStyle(str_a);
            }
            catch (Exception ex)
            {

                MessageBox.Show(ex.ToString());
            }
        }

        private void gridView1_FocusedRowChanged(object sender, DevExpress.XtraGrid.Views.Base.FocusedRowChangedEventArgs e)
        {
            try
            {
                GridView view = (GridView)sender;
                //获取选中行的列a的值
                string str_a = view.GetFocusedRowCellValue("a").ToString();
                SetGridStyle(str_a);

            }
            catch (Exception ex)
            {

                MessageBox.Show(ex.ToString());
            }
        }
        /// <summary>
        /// 点击行的主key（主key为空不能编辑点击行其他内容，反之可以）
        /// </summary>
        /// <param name="PrimarValue">主Key值</param>
        private void SetGridStyle(string PrimarValue)
        {
            try
            {
                DataTable dt = (DataTable)gridControl1.DataSource;
                gridView1.OptionsBehavior.Editable = true;
                //如果主Key为空，设置除了主Key其他不可编辑
                //如果主Key不为空，设置都可编辑
                if (string.IsNullOrEmpty(PrimarValue))
                {
                    foreach (DataColumn item in dt.Columns)
                    {
                        gridView1.Columns[item.ColumnName.ToString()].OptionsColumn.AllowEdit = false;
                        gridView1.Columns[item.ColumnName.ToString()].OptionsColumn.ReadOnly = true;
                        gridView1.Columns[item.ColumnName.ToString()].OptionsColumn.AllowFocus = false;
                    }
                    gridView1.Columns["a"].OptionsColumn.AllowFocus = true;
                    gridView1.Columns["a"].OptionsColumn.AllowEdit = true;
                    gridView1.Columns["a"].OptionsColumn.ReadOnly = false;
                }
                else
                {
                    foreach (DataColumn item in dt.Columns)
                    {
                        gridView1.Columns[item.ColumnName.ToString()].OptionsColumn.AllowEdit = true;
                        gridView1.Columns[item.ColumnName.ToString()].OptionsColumn.ReadOnly = false;
                        gridView1.Columns[item.ColumnName.ToString()].OptionsColumn.AllowFocus = true;
                    }
                }
            }
            catch (Exception ex)
            {

                MessageBox.Show(ex.ToString());
            }
        }
        /// <summary>
        /// 事件相当于一直在遍历所有cells
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void gridView1_RowCellStyle(object sender, RowCellStyleEventArgs e)
        {
            DevExpress.XtraGrid.Views.Grid.GridView view = sender as DevExpress.XtraGrid.Views.Grid.GridView;
            //列名=a，值=1的标记为绿色
            if (e.CellValue.ToString() == "1" && e.Column.FieldName.ToString().Equals("a"))
            {
                e.Appearance.BackColor = Color.FromArgb(128, 255, 128);
                e.Column.DisplayFormat.FormatString = "yyyy-MM-dd HH:mm:ss";
                e.Column.Width = 250;
               
            }
        }
    }
}