Hi, I just came into contact with Kendo UI. I think it is very powerful, especially the function of MVVM is very easy to use.

I have a question that I haven't understood. After setting the data of the datasource, you can operate on it, but the schema.model property can set the information of the data field. Is this unnecessary?

I never know the relationship between datasource and schema. Model. It seems that I don't set schema. Model and datasource works normally.

Can any engineer explain their specific links and functions? Thank you for your help.

I am working with kendo grids with buttons in each column that display another grid in a modal. The first is using MVC, the modal grid was created dynamically. Each uses kendo dropdownlists to edit cells. The issue occurs like this:

1. A dropdownlist is clicked on in the initial grid,

2. The modal is opened afterward (each row has its own button)

3. A dropdownlist inside the modal's kendo grid is clicked, and nothing happens

Basically, if a dropdown is clicked in grid 1, and then you attempt to click one of the dropdownlists in the modal grid, 
this error is thrown:

Uncaught TypeError: m is not a function
    at init.editor (kendo.all.min.js:54)
    at init.refresh (kendo.all.min.js:54)
    at new init (kendo.all.min.js:54)
    at HTMLTableCellElement.<anonymous> (kendo.all.min.js:26)
    at Function.each (jquery.min.js:2)
    at R.fn.init.each (jquery.min.js:2)
    at R.fn.init.e.fn.<computed> [as kendoEditable] (kendo.all.min.js:26)
    at init.editCell (kendo.all.min.js:59)
    at init.tap (kendo.all.min.js:59)
    at init.trigger (kendo.all.min.js:25)

This error is vague, and on the surface seems like jQuery scripts may be interfering or out of order. I don't think this is the case
because A) I haven't recieved errors like this before and B) the dropdowns work if the modal is opened without any of the dropdowns in the
other grid being touched. It seems as if when a dropdown is clicked in initial grid, somehow it breaks the dropdown in modal grid. They
do not have the same name.

Any ideas on where this console error comes from?

Here is a snippet of the grid being generated in the modal:

 $("#account-tracking-grid").kendoGrid({
        columns: [
            {
                field: "accountName",
                title: "Account Name",
                editable: function () { return false },
                width: "200px",
            },
            {
                field: "accountNumber",
                title: "Account Number",
                editable: function () { return false },
                width: "200px"
            },
            {
                field: "Balance",
                title: "Balance",
                width: "40px",
                template: "<span>#=getIcon(Balance)#</span>",
                editor: dropdownlist,
                headerTemplate: "<span class='verticalText'>Balance</span>"
            }
 ],
        editable: "incell",
        edit: function (e) {
            var container = e.container;
            var dropDownList = container.find("[data-role=dropdownlist]").data("kendoDropDownList");
            if (dropDownList) dropDownList.open();
        },
        dataSource: {
            transport: {
              read: "/Account/Tracking?uniqueId=" + document.getElementById('unid').value
            }
        }
    });
}

function dropdownlist(container, options) {
    $('<input id="account-dropdownlist"/>')
        .appendTo(container)
    $("#account-dropdownlist").kendoDropDownList({
        dataTextField: "text",
        dataValueField: "value",
        dataSource: items,
        change: onChange,
        open: onOpen
    });
}