Dev中常用到的一些基础事件！

   ============================================================

       SetControlReadOnly(xtraTabControl1);

      //将xtraTabControl1中的控件进行循环遍历，并且控件内容只读

       private void SetControlReadOnly(Control control)
        {
            var pro = control.GetType().GetProperty("ReadOnly");
            if(pro!=null)
            {
                pro.SetValue(control, true, null);
            }
            foreach(Control c in control.Controls)
            {
                OperateControls(c);
            }
        }

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        /// <summary>
        /// 自定义显示文本
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void gridView1_CustomColumnDisplayText(object sender, DevExpress.XtraGrid.Views.Base.CustomColumnDisplayTextEventArgs e)
        {

            if(e.Column.FieldName== "State")
            {
                switch (e.Value.ToString().Trim())
                {
                    case "0":
                        e.DisplayText = "状态一";
                        break;
                    case "1":
                        e.DisplayText = "状态二";
                        break;
                    case "2":
                        e.DisplayText = "状态三";
                        break;
                    default:
                        e.DisplayText = "未知";
                        break;
                }
            }

       }

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        /// <summary>
        /// 对某个字段(ValveState)进行不同颜色提示
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void gridView1_RowCellStyle(object sender, DevExpress.XtraGrid.Views.Grid.RowCellStyleEventArgs e)
        {
            for(int i=0;i<gridView1.RowCount;i++)
            {
                if(e.RowHandle==i && e.Column.FieldName== "ValveState")
                {
                    string state = gridView1.GetRowCellValue(i, "ValveState").ToString();
                    if(state=="1")
                    {
                        e.Appearance.ForeColor = Color.Red;
                    }
                }
            }
        }

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        /// <summary>
        /// GridView没有查询到数据时显示
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void gridView1_CustomDrawEmptyForeground(object sender, DevExpress.XtraGrid.Views.Base.CustomDrawEventArgs e)
        {
            if (this.gridView1.RowCount != 0) return;
            GirdControlDrawEmptyForeground.DrawEmpty(sender, e);
        }

    /// <summary>
    /// 列表显示为空提示
    /// </summary>
    public static class GirdControlDrawEmptyForeground
    {
        private const string MESSAGE_INFO = "暂无数据.";

        public static void DrawEmpty(object sender, DevExpress.XtraGrid.Views.Base.CustomDrawEventArgs e)
        {
            Font font = new Font("宋体", 10, FontStyle.Bold);
            SolidBrush solid = new SolidBrush(Color.Black);
            Rectangle rectangle = new Rectangle(e.Bounds.Left, e.Bounds.Top + 2, e.Bounds.Width, e.Bounds.Height);
            e.Graphics.DrawString(MESSAGE_INFO, font, solid, rectangle);
        }
    }

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     注意：

1..将该列的UnboundType属性设置为bound(默认值)以外的数据类型

2.为该列设置一个窗体内全局唯一的FieldName，注意这个FieldName甚至不能出现在窗体上其它XtraGrid中。

        /// <summary>
        /// 非数据绑定列的触发事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void gridView1_CustomUnboundColumnData(object sender, DevExpress.XtraGrid.Views.Base.CustomColumnDataEventArgs e)
        {
            if (e.IsGetData) //绑定行指示列数据显示文本处理
            {
                if (e.Column.FieldName == "Cancel") //该显示行
                {
                    var row = e.Row as View_User;  //行数据源
                    if (row != null && row.State == '2')  //指定列
                    {
                        e.Value = "撤销";
                    }
                    else
                    {
                        e.Value = "";
                    }
                }
            }
        }

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        /// <summary>
        /// 点击选择选中行的某列数据
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btm_ok_Click(object sender, EventArgs e)
        {
            StringBuilder strTemp = new StringBuilder();
            strTemp.Append("'");

            int[] rows = gridView1.GetSelectedRows();  //获取选中数据行信息
            for(int y=0;y<gridView1.RowCount;y++)
            {
                string ap = gridView1.GetRowCellValue(y, "Name").ToString();
                for (int i = 0; i < rows.Count(); i++)
                {
                    if (gridView1.GetSelectedRows()[i] == y)
                    {
                        strTemp.Append(ap);
                        strTemp.Append("','");
                    }
                }
            }
            MessageBox.Show("选中用户：" + strTemp);
        }