Kendo 网格未发送所有选中的项目

Question

我有一个 Kendo 网格，其中包含复选框项目。我想检查所有项目并将它们发送到控制器，以便将检查的数据导出为 PDF。但是，当我检查了所有项目时，Kendo 网格仅发送网格第一页中的已检查项目，而我的 PDF 报告只有一页。如何从 Kendo 网格中获取所有选中的项目？我的代码在这里：

<div style="text-align:right; font-size: 0.9em;height:28px;position: relative;">

        <span style="float:left;text-align:left;">
            <a href="#" onclick="checkAll();">Check All</a>&nbsp;
            <a href="#" onclick="uncheckAll();">Uncheck All</a>&nbsp;
            <a class="k-button k-button-icontext k-grid-Patient" id="hrefCheckedPatients" href="#" onclick="getChecked();">Export to PDF</a>&nbsp;
            <a href="#" id="lnkPdfDownload" style="display:none;" onclick="$(this).hide();">Download Generated PDF</a>
            <label id="checkedMsg" style="color:red;display:none;"></label>
        </span>
(Html.Kendo().Grid<RunSummary>()
          .Name("CheckedPatients")          
          .DataSource(datasource => datasource
                .Ajax().PageSize(25)        
                .Sort(sort => sort.Add("UniqueId").Ascending())                        
                .Read(read => read.Action("GetRunSummaries", "PatientReport")))
          .Columns(columns =>
              {

                  columns.Bound(c => c.UniqueId).Title(ELSORegistry.Resources.Views.Home.HomeStrings.UniqueId)
                        .ClientTemplate("<input type='checkbox'  class='primaryBox' id='#= UniqueId #'>#= UniqueId #</input>");
                  columns.Bound(c => c.RunNo).Title(SharedStrings.Run);
                  columns.Bound(c => c.Birthdate).Title(SharedStrings.Birthdate).Format("{0:g}").Filterable(true);

                  columns.Bound(c => c.customAge).Title(SharedStrings.Age)
                         .Filterable(
                             filterable => filterable
                                 .UI("AgeFilter")
                                 .Extra(false)
                                 .Operators(operators => operators
                                     .ForString(str => str.Clear().IsEqualTo("Is equal to"))
                                     )

                       );

                  columns.Bound(c => c.TimeOn).Title(PatientStrings.DateOn)
                      .Format("{0:g}")
                      .Filterable(true);
                  columns.Bound(c => c.TimeOff).Title(PatientStrings.DateOff)
                      .Format("{0:g}")
                      .Filterable(true);
                  columns.Bound(c => c.DischargedAlive).Title(PatientStrings.DischargedAlive).Filterable(true).ClientTemplate("#= DischargedAlive ? 'Yes' : 'No' #");
                  columns.Bound(c => c.ShowSubmitted).Title(PatientStrings.Submitted).Filterable(true).ClientTemplate("#= ShowSubmitted ? 'Yes' : 'No' #");
                  columns.Bound(c => c.SupportTypeEnum).Title(PatientStrings.SupportType).Filterable(true);//.ClientTemplate("#= SupportType ? 'Yes' : 'No' #");
              }
          )
          .Pageable(p => p.PageSizes(new[] {10, 25, 50, 100}))
          .Sortable()
          .Filterable( )
          .Events( e => e.FilterMenuInit("FilterMenuFuncWithAge") ) // apply x [closing box] on pop up filter box
          )
 function getChecked() {
        $('#checkedMsg').text('');        
        var ids = new Array();

        $('.primaryBox:checked').map(function (index) {
            ids.push(this.id);
        });        

        if (ids.length == 0) {
            $('#checkedMsg').text('@ELSORegistry.Resources.Views.Patient.PatientStrings.NoPatientsSelected').show();
            $('#hrefCheckedPatients').blur();
            return;
        } else {
            $('#checkedMsg').text('').hide();
            $('#hrefCheckedPatients').blur();

        }

        $.ajax({
            type: "POST",
            url: "/PatientReport/ExportToPDF",
            dataType: "json",
            traditional: true,
            data: { uniqueIds: ids },
            success: function (data) {
                if (data.success) {                    
                    $('#lnkPdfDownload').show();
                    $('#lnkPdfDownload').attr('href', '/PatientReport/DownloadFile' + '?fName=' + data.fName);
                } else {
                    $('#lnkPdfDownload').hide();
                }

            },
            error: function (jqXHR, textStatus, errorThrown) {
                $('#checkedMsg').text('@ELSORegistry.Resources.Views.Patient.PatientStrings.CheckedError').show();
                $('#hrefCheckedPatients').blur();
            }
        });
        }
</script>

提前感谢您的帮助。

Answer 1

我们无法直接从所有页面的 kendo 网格中获取所有 ID。所以我们必须手动从所有页面中获取它。

请尝试使用以下代码片段。

<script>

    var ids = [];

    function checkAll() {
        var dataSource = $("#CheckedPatients").data("kendoGrid").dataSource;
        var filters = dataSource.filter();
        var totalRowCount = parseInt(dataSource.total().toString());
        var totalPages = Math.ceil(totalRowCount / dataSource.pageSize());
        var currentPageSize = $("#CheckedPatients").data("kendoGrid").dataSource.page();
        PageTraverser(dataSource, 1, totalPages,filters, function () {
            $("#CheckedPatients").data("kendoGrid").dataSource.page(currentPageSize);
            alert("You have slected this Ids:- " + ids.join(','));
        });
    }

    function PageTraverser(dataSource, targetPage, totalPages,filters, completionFunction) { 
        dataSource.query({
            page: targetPage,
            filter: filters
            pageSize: 1,
        }).then(function () {
            var view = dataSource.view();
            for (var viewItemId = 0; viewItemId < view.length; viewItemId++) {
                var viewItem = view[viewItemId];
                ids.push(viewItem.UniqueId); //Please change your field name here
            }
            targetPage++;
            if (targetPage <= totalPages) {
                PageTraverser(dataSource, targetPage, totalPages, filters, completionFunction);
            } else {
                completionFunction();
            }
        });
    }

</script>

如有任何疑问，请告诉我。