为什么我的 KendoGrid 不调用我的 MVC 控制器? [英] Why doesn't my KendoGrid call my MVC controller?

问题描述

我在标准 C# ASP.NET MVC 控制器中有以下代码.

I have the following code in a standard C# ASP.NET MVC controller.

public JsonResult ReadTeachers()
{
    return Json(ReadTeacherData(), JsonRequestBehavior.AllowGet);
}

public void UpdateTeachers(IEnumerable<Teacher> updatedTeachers)
{
    // this is never called
}

我正在尝试使用 KendoGrid 调用此控制器.这是我的网格的代码.

I'm trying to call this controller with a KendoGrid. Here is the code for my grid.

$("#teachers").kendoGrid({
    dataSource: {
        type: "json",
        transport: {
            read: {
                url: '@Url.Action("ReadTeachers", "EducationPortal")',
                dataType: "json"
            },
            update: {
                url: '@Url.Action("UpdateTeachers", "EducationPortal")',
                dataType: "json"
            },
            parameterMap: function (options, operation) {
                if (operation !== "read" && options.models) {
                    return { models: kendo.stringify(options.models) };
                }
            }
        },
        batch: true,
        schema: {
            model: {
                id: "TeacherId",
                fields: {
                    TeacherId: { type: "number" },
                    FullName: { type: "string" },
                    IsHeadmaster: { type: "boolean" }
                }
            }
        }
    },
    toolbar: ["create", "save"],
    columns: [
        { field: "FullName", title: "Teacher" },
        { field: "IsHeadmaster", title: "Is a Headmaster?", width: "120px" },
        { command: ["destroy"], title: " ", width: "85px" }],
    editable: true
});

我根据 Kendo 的示例改编了这段代码.问题是，从未调用 UpdateTeachers 方法.我怀疑问题出在 parameterMap 函数上，因为那是我最不了解的代码部分.

I adapted this code from Kendo's examples. The problem is, the UpdateTeachers method is never called. I suspect that the issue lies in the parameterMap function, because that's the part of the code I understand the least.

推荐答案

而不是使用

public void UpdateTeachers(IEnumerable<Teacher> updatedTeachers)
{
    // this is never called
}

使用过

public JsonResult UpdateTeachers(string models)
{
//Deserialize to object
IList<Teacher> teachers= new JavaScriptSerializer().Deserialize<IList<Teacher>>(models);

return Json(Teacher)
}

请注意，parameterMap: function() 以序列化字符串格式发送更新的数据，名称为 models，因此您应该在操作中使用models"作为参数名称

Note that parameterMap: function() send updated data in serialize string format with name models so you should use "models" as parameter name in your action

希望对你有帮助

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