function reload() {
    $("#dgCoursematerialList").cmsXDataTable("load", $.getDataGridParams("dgCoursematerialList"));
}
//获取选中的数据
function validChoose() {
    var d = [];
    $.each($("#dgCoursematerialList").cmsXDataTable("getSelections"), function (index) {
        d.push(this);
    });
    return d;
}

function Coursematerial_Confirm() {
    var d = validChoose();

    var windowID = $.SystemGeneral.getUrlParam("WindowID");
    var maxSelect = $.SystemGeneral.getUrlParam("MaxSelect");
    if (!maxSelect || isNaN(maxSelect)) maxSelect = 0;

    if (d.length == 0) {
        $.messager.alert("系统提示", "请选择至少一门课程。");
        return;
    }

    if (maxSelect > 0 && d.length > maxSelect) {
        $.messager.alert("系统提示", "只能选择" + maxSelect + "项记录。");
        return;
    }

    top.$("#" + windowID).data("resultData", d);
    top.$("#" + windowID).dialog("close");
}