JavaScript 在继续之前等待 AJAX

Question

在使用 kendo ui 进行内联网格编辑时单击更新时出现竞争条件。

保存时我在保存时执行以下函数:

dataBound: function (e) {
   // This needs to run after the save has finished           
},
save: function (e) {
    $.when(
        $.ajax({
            type: "GET",
            url: "/Admin/OperatingCentre/GetById?id=" + e.model.OperatingCentreId,
            success: function (data) {
                e.model.OperatingCentreName = data.Name;
            }
        }),
        $.ajax({
            type: "GET",
            url: "/Admin/Division/GetById?id=" + e.model.DivisionId,
            success: function (data) {
                e.model.DivisionName = data.Name;
            }
        }),
        $.ajax({
            type: "GET",
            url: "/Admin/OperatingCompany/GetById?id=" + e.model.OperatingCompanyId,
            success: function (data) {
                e.model.OperatingCompanyName = data.Name;
            }
        })
   );
}

我所追求的是等待 $.when 函数，因为网格不会等到它调用数据绑定(bind)，因此 e.model.OperatingCentreName 等没有及时设置以在网格中显示。

添加等待时这也没有帮助:

save: async function (e) {
    await $.when(

如有任何建议，我们将不胜感激。

Answer 1

dataBound: function(e) {
    // This needs to run after the save has finished           
  },
  save: function(e) {
    $.when(
      $.ajax({
        type: "GET",
        url: "/Admin/OperatingCentre/GetById?id=" + e.model.OperatingCentreId,
        success: function(data) {
          e.model.OperatingCentreName = data.Name;
        }
      }),
      $.ajax({
        type: "GET",
        url: "/Admin/Division/GetById?id=" + e.model.DivisionId,
        success: function(data) {
          e.model.DivisionName = data.Name;
        }
      }),
      $.ajax({
        type: "GET",
        url: "/Admin/OperatingCompany/GetById?id=" + e.model.OperatingCompanyId,
        success: function(data) {
          e.model.OperatingCompanyName = data.Name;
        }
      })
    ).done(function(a1, a2, a3) {
      // a1, a2, and a3 are arguments resolved for the each of the ajax requests, respectively.
      // Each argument is an array with the following structure:
      //[ data, statusText, jqXHR ]
      // here trigger the dataBound
    });
  }