Angular PrimeNG DataTable服务器端分页

我目前正在从事Angular 4项目，并使用Priming数据表。到目前为止，这个框架看起来相当整洁，但我想让我的分页服务器端。那样的话，我只会加载10,20，。。一次记录，而不是一次加载所有1000+项

以前有人这样做过吗，或者有人知道解决方法吗

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PS：如果你没有一个解决方案，但知道一个框架支持这个，请让我知道

您可以监听分页器的

onPageChange

事件，以告知您何时需要获取

Paginator.rows

数据。

看起来懒惰就是我们所做的。。。寻找：）

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借助延迟加载，我们可以在数据表上实现服务器端分页、过滤和排序

代码如下：

listing.html
<div class="table-responsive">
        <p-dataTable sortField="FileNo" [sortOrder]="1" [value]="paitientListing" [lazy]="true" [rows]="10" [paginator]="true" [rowsPerPageOptions]="[10,20]" [totalRecords]="totalRecords" (onLazyLoad)="loadPatientListing($event)">
            <p-column field="PatientID" header="File No" [sortable]="true" [style]="{'width':'94px'}"></p-column>
            <p-column field="LastName" [sortable]="true" [style]="{'width':'121px'}" header="Last Name"></p-column>
            <p-column field="FirstName" [sortable]="true" [style]="{'width':'122px'}" header="First Name"></p-column>
            <p-column styleClass="col-button" [style]="{'width':'90px'}">
                <ng-template pTemplate="header">
                    Action
                </ng-template>
                <ng-template let-paitientListing="rowData" pTemplate="body">
                    <button type="button" pButton (click)="editPatient(paitientListing.PatientID)" icon="fa-pencil-square-o"></button>
                    <button type="button" pButton (click)="deletePatient(paitientListing.PatientID)" icon="fa-trash-o" class="ui-button-danger"></button>
                </ng-template>
            </p-column>
        </p-dataTable> 
listing.Component.ts

loadPatientListing(event) {
    this.patientFilterModel.PageSize = event.rows;
    this.patientFilterModel.RowNumber = event.first;
    this.patientFilterModel.OrderColumn = event.sortField;

    if (event.sortOrder == 1) {
        this.patientFilterModel.OrderBy = "asc";
    }
    else {
        this.patientFilterModel.OrderBy = "desc";
    }
    this.patientService.GetPatientListing(this.patientFilterModel).subscribe(
        data => {
            this.patientModel = data;
            this.paitientListing = this.patientModel._ListPatientListing;
            this.totalRecords = data.TotalRecords;
        },
        error => {
            this.loading = false;
        }
    );
}

listing.html
行动
listing.Component.ts
loadPatientListing（事件）{
this.patientFilterModel.PageSize=event.rows；
this.patientFilterModel.RowNumber=event.first；
this.patientFilterModel.OrderColumn=event.sortField；
if（event.sortOrder==1）{
this.patientFilterModel.OrderBy=“asc”；
}
否则{
this.patientFilterModel.OrderBy=“desc”；
}
this.patientService.GetPatientListing（this.patientFilterModel）.订阅(
数据=>{
this.patientModel=数据；
this.paitientListing=this.patientModel.\u ListPatientListing；
this.totalRecords=data.totalRecords；
},
错误=>{
这一点：加载=错误；
}
);
}

仅供参考，第6版中不推荐使用p-dataTable。PrimeFaces建议您使用TurboTable。我只是需要经过转换。您需要添加 [totalRecords]=“totalRecords”[lazy]=“true”（onLazyLoad）=“loadPatientLazy（$event）”[loading]=“loading”

<p-table id='patients-grid' [value]='patients' [totalRecords]='totalRecords'
        expandableRows='true' [responsive]='true' dataKey=''
        [rows]='5' [paginator]='true' [rowsPerPageOptions]='[5,10,50]'>
    <ng-template pTemplate='header'>
        <tr>
            <th style='width: 40px;'></th>
            <th style='width: 40px;'>
                <button (click)='addItemClicked( )' pButton type='button' icon='fa fa-plus' class='ui-button-primary'></button>
            </th>
            <th style='width: 80px;' [pSortableColumn]='"PatientID"'>
                Patient I D
                <p-sortIcon [field]='PatientID'></p-sortIcon>
            </th>
            <th style='width: 250px;' [pSortableColumn]='"LastName"'>
                Last Name
                <p-sortIcon [field]='LastName'></p-sortIcon>
            </th>
            <th style='width: 250px;' [pSortableColumn]='"FirstName"'>
                First Name
                <p-sortIcon [field]='FirstName'></p-sortIcon>
            </th>
            <th style='width: 40px;'></th>
        </tr>
    </ng-template>
    <ng-template pTemplate='body' let-rowData let-columns='columns' let-expanded='expanded'>
        <tr>
            <td>
                <a href='#' [pRowToggler]='rowData'>
                    <i [ngClass]='expanded ? "pi pi-fw pi-chevron-circle-down" : "pi pi-pw pi-chevron-circle-right"' style='font-size: 1.25em'></i>
                </a>
            </td>
            <td>
                <button (click)='editItemClicked( rowData )' pButton type='button' icon='fa fa-edit' class='ui-button-primary'></button>
            </td>
            <td>{{rowData['PatientID']}}</td>
            <td>{{rowData['LastName']}}</td>
            <td>{{rowData['FirstName']}}</td>
            <td>
                <button (click)="deleteItemClicked( patient )" pButton type="button" icon="fa fa-trash" class="ui-button-danger"></button>
            </td>
        </tr>
    </ng-template>
    <ng-template let-patient pTemplate='rowexpansion'>
        <tr><td [attr.colspan]='6'>
            <div class='ui-grid ui-grid-responsive ui-fluid'>
                <div class='ui-grid-row ui-inputgroup'>
                    <div class='ui-grid-col-3 nsg-primary-color nsg-text-right'><label for='PatientID'>Patient I D:&nbsp;</label></div>
                    <div class='ui-grid-col-9' id='PatientID'>{{patient.PatientID}}</div>
                </div>
                <div class='ui-grid-row ui-inputgroup'>
                    <div class='ui-grid-col-3 nsg-primary-color nsg-text-right'><label for='LastName'>Last Name:&nbsp;</label></div>
                    <div class='ui-grid-col-9' id='LastName'>{{patient.LastName}}</div>
                </div>
                <div class='ui-grid-row ui-inputgroup'>
                    <div class='ui-grid-col-3 nsg-primary-color nsg-text-right'><label for='FirstName'>First Name:&nbsp;</label></div>
                    <div class='ui-grid-col-9' id='FirstName'>{{patient.FirstName}}</div>
                </div>
            </div>
        </td><tr>
    </ng-template>
</p-table>

我的病人
姓
名字
{{rowData['PatientID']}
{{rowData['LastName']}
{{rowData['FirstName']}
病人身份证：
{{patient.PatientID}
姓氏：
{{patient.LastName}
名字：
{{patient.FirstName}

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注意：nsg-CSS类是我的自定义类。

对于使用旧版本信息的用户，请访问

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另外添加dataKey='createdate'另外，请确保您使用的是HttpClient，Http已弃用。RxJs的第6版非常不同。你能为你的代码提供一些解释吗。。比如什么是“patientFilterModel”和什么是“ListPatientListing”？考虑到答案已被替换，请更新答案好吗？谢谢。答案中的链接已经过时了。这是更新后的链接：在将数据加载到表中之前，我们真的必须知道总记录数吗？是的，需要应用分页

loadData(event: LazyLoadEvent) {
    //event.first = First row offset
    //event.rows = Number of rows per page
    //event.sortField = Field name to sort in single sort mode
    //event.sortOrder = Sort order as number, 1 for asc and -1 for dec in single sort mode
    //multiSortMeta: An array of SortMeta objects used in multiple columns sorting. Each SortMeta has field and order properties.
    //filters: Filters object having field as key and filter value, filter matchMode as value
    //globalFilter: Value of the global filter if available
    this.cars = //do a request to a remote datasource using a service and return the cars that match the lazy load criteria
}