三、gridView增删改查

1. 新增或修改一条数据

　　1.1 添加 新增或修改按钮

     <div style="width: 120px; float: right; padding-top: 3px">
         @Html.DevExpress().Button(settings =>
         {
             settings.Name = "btnUpdate";
             settings.ControlStyle.CssClass = "button";
             settings.Text = "修改";
             settings.UseSubmitBehavior = true;
             settings.ClientSideEvents.Click = "updateData";
         }).GetHtml()
     </div>

     <div style="width: 120px; float: right; padding-top: 3px">
         @Html.DevExpress().Button(settings =>
         {
             settings.Name = "btnAdd";
             settings.ControlStyle.CssClass = "button";
             settings.Text = "新增";
             settings.UseSubmitBehavior = true;
             settings.ClientSideEvents.Click = "addData";
         }).GetHtml()
     </div>

btnAddorUpdate

　　1.2 新增或修改按钮JS

     function updateData(s, e) {
         GridView.GetSelectedFieldValues("DocumentId", GetSelectedFieldValuesCallbackForModify);
     }

     function GetSelectedFieldValuesCallbackForModify(values) {
         if (values.length != 1) {
             alert("请选择一个修改项");
         } else {
             $.ajax({
                 type: "GET",
                 url: '@Url.Action("UpdateOrAdd", "Home")',
                 data: { "id": values[0] },
                 datatype: "html",
                 ansy: false,
                 cache: false,
                 success: function (data) {
                     $('#content').html(data);
                     $("#DocumentId").val(values[0]);
                     addorUpdate.Show();
                 },
                 error: function () {
                     alert("处理失败!");
                 }
             });
         }
     }

     function addData(s, e) {
         $.ajax({
             type: "GET",
             url: '@Url.Action("UpdateOrAdd", "Home")',
             data: '',
             datatype: "html",
             ansy: false,
             cache: false,
             success: function (data) {
                 $('#content').html(data);
                 addorUpdate.Show();
             },
             error: function () {
                 alert("处理失败!");
             }
         });
     }

　　1.3 新增或修改Controller