GridControl 选择列、复选框全选（下）

功能：

删除选中行

前台调用：

 string str="";

            GridDelete(gv, "chk", out str);

            MessageBox.Show(str);

底层类：

 /// <summary>

        /// 删除所有选中行

        /// </summary>

        /// <param name="gv">GirdView 名称</param>

        /// <param name="chkFieldName">复选框列名</param>

        /// <param name="ErrorInfo">输出信息</param>

        /// <returns>是否删除成功 成功=true 失败=false</returns>

        public static bool GridDelete(DevExpress.XtraGrid.Views.Grid.GridView gv, string chkFieldName,out string ErrorInfo) {

            ErrorInfo = "";

            try

            {

                if (gv.RowCount < 1)

                {

                    ErrorInfo = "列表无数据，删除失败！";

                    return false;

                }

                //gv 是否可以多选

                bool isSelectMulti = gv.OptionsSelection.MultiSelect;

                if (!isSelectMulti)

                {

                    gv.OptionsSelection.MultiSelect = !isSelectMulti;

                }

                //用户是否选中了行

                bool isRecord = false;

                //遍历 让选中行的设置为选中状态

                for (int i = 0; i < gv.RowCount; i++)

                {

                    if (!string.IsNullOrEmpty(gv.GetRowCellValue(i, chkFieldName).ToString()))

                    {

                        if (Convert.ToBoolean(gv.GetRowCellValue(i, chkFieldName).ToString()))

                        {

                            gv.SelectRow(i);

                            isRecord = true;

                        }

                    }

                }

                //删除选中状态的行

                gv.DeleteSelectedRows();

                //恢复gv之前的状态

                gv.OptionsSelection.MultiSelect = isSelectMulti;

                if (isRecord)

                {

                    ErrorInfo = "删除成功！";

                    return true;

                }

                else {

                    ErrorInfo = "请选择你要删除的行！";

                    return false;

                }

            }

            catch(Exception ex) {

                ErrorInfo = ex.Message;

                return false;

            }

        }