jQuery Performant数据网格插件 巨大 网格

  • 源码大小:64.42KB
  • 所需积分:1积分
  • 源码编号:19JP-3411
  • 浏览次数:333次
  • 最后更新:2023年06月10日
  • 所属栏目:表格
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简介

轻松处理数千条记录并显示它们。

大型数据集很难处理,尤其是在需要在单个页面上有大量记录的情况下

巨大网格是一个简单的jQuery插件,用于从大量数据中生成一个完全响应、高性能、功能丰富且高度可定制的数据表/网格

它的构建考虑到了性能,同时支持静态和动态数据、排序、滚动和过滤。您可以设置要预加载的视图区域之外的记录数,以提供更好的用户体验。

如何使用它:

1.在文档中加载最新的jQuery库和巨大网格插件的文件。

<!-- Required Stylesheet For The Data Grid -->
<link rel="stylesheet" href="/path/to/css/huge-grid.min.css" />

<!-- jQuery Library -->
<script src="/path/to/cdn/jquery.slim.min.js"></script>

<!-- Main JavaScript -->
<script src="/path/to/js/huge-grid.js"></script>

2.创建一个空的DIV容器来容纳数据网格。

<div id="grid" style="height: 500px;">
  
</div>

3.按如下方式准备表格数据。

var myHeader = [
    {
      id: "id",
      content: "ID",
      width: 50
    },
    {
      id: "name",
      content: "Name",
      width: 200
    },
    // ...
];

var myData = [
    {
      id: "id",
      content: {
        id: "id",
        name: "name"
      }
    }
    // ...
];

4.初始化插件以生成可排序和可滚动的数据网格。

$("#grid").hugeGrid({
  sortKey: "name",
  header: generateColumns(),
  data: generateData()
});

5.可用于自定义数据网格的插件选项。

$("#grid").hugeGrid({

  // unique ID
  id: null,

  // border width between headings and data
  splitterWidth: 2,   

  // number of columns to be fixed
  fixedColumns: 0,    

  // height of the header
  headRowHeight: 17,

  // height of the filter row
  filterRowHeight: 26,

  markedColumnBackground: '#DDD',
 
  // column id to sort data by
  sortKey: null,

  // asc or desc      
  sortDesc: false,

  // when TRUE the sort row is not rendered.
  noSort: false,      

  // when TRUE grid automatically reorders rows when they change.
  autoSort: true, 

  // height of the sort row
  sortRowHeight: 20,

  // custom sort markup
  sortMarkup: '<div class="hg-sort-inner"><div class="hg-sort-desc"></div><div class="hg-sort-asc"></div></div>',
  noSortMarkup: '',

  // used only with ajax loading
  dataType: "json",

  // data parameters
  dataParam: null,

  // enable data filter
  filter: null,

  // height of row
  rowHeight: 16, 

  // number of rows in one block
  blockSize: 8, 

  // number of root level columns / column groups in one horizontal block
  hBlockSize: 16,

  // number of blocks/superblocks in one higher level superblock
  superblockSize: 16,

  // number of levels of blocks / superblocks should be used
  blockLevels: 4,

  // number of blocks are allowed to get loaded at the same time via ajax. value greater than 3 is not recommended.
  maxConcurrentLoads: 3,

  // number of rows that are outside the view area should be preloaded
  preloadRows: 10,

  // // the markup added to the block that is not yet loaded via ajax (left part)
  loadingBlockHeadMarkup: '<div class="hg-block-loading" />', 

  // the markup added to the block that is not yet loaded via ajax (right part)
  loadingBlockContMarkup: '<div class="hg-block-loading" />', 

  rangeBorderWidth: 1,

  // 'none' (no selection), 
  // 'single' (only columns on a single row), 
  // 'multiple' (multiple columns and rows).
  selectionMode: 'none', 

  // what is the left most allowed selected column id
  selectionMinColumnId: null, 

  // what is the right most allowed selected column id
  selectionMaxColumnId: null, 

  // custom table footer
  footer: null,
  footerHeight: 19,

  // scolling options
  hScrollPos: 0,
  vScrollPos: 0,
  hScrollHeight: 32,
  vScrollWidth: 32,
  hScrollSpeed: 360,
  vScrollSpeed: 120,
  hScrollMarkup: '<div class="hg-hscroll-tumb" />',
  vScrollMarkup: '<div class="hg-vscroll-tumb" />',

  // touch options
  touchScrollSensitivity: 5,
  touchContextMenuTime: 1,
  dblTapTime: 0.5,

});

6.回调和函数。

$("#grid").hugeGrid({

  // function(rowData)
  rowTransformer: null,

  // function(colId, isDesc) // return true if want to cancel sort switching
  onSort: function(colId, isDesc) { return this.onDefaultSort(colId, isDesc); },

  // function(target)
  onMarkChange: null,

  // function(target) Grid will not be reloaded if function returns FALSE.
  onFilterChange: null,

  // function(event, delta, deltaX, deltaY) Must return TRUE to allow default grid scrolling.
  onBeforeWheelScroll: null,

  // function(target)
  onMouseDown: null,

  // function(target)
  onMouseUp: null,

  // function(target)
  onSelectionStart: null,

  // function(target)
  onSelectionChange: null,

  // function(target)
  onSelectionEnd: null,

  // function(target)
  onClick: null,

  // function(target)
  onDblClick: null,

  // function(event, target) Must return FALSE if default grid behaviour should be prevented.
  onTouchStart: null,

  // function(event, target) Must return FALSE if default grid behaviour should be prevented.
  onTouchMove: null,

  // function(event, target) Must return FALSE if default grid behaviour should be prevented.
  onTouchEnd: null,

  // function(event, target)
  onTap: null,

  // function(event, target)
  onDblTap: null,

  // function(event, target) Must return FALSE to prevent further context menu events.
  onTouchContextMenuStart: null,

  // function()
  onTouchContextMenuCancel: null,

  // function(event, target) Must return TRUE to prevent further grid scrolling and tap callbacks if context menu was shown or any action taken.
  onTouchContextMenu: null,

  // function(target)
  onOver: null,

  // function(target)
  onOut: null,

  // function(selection)
  onSelect: null,

  // function(selection)
  onDeselect: null,

  // function(rowIdxFrom, rowIdxTo)
  onLoad: null,

  // function(rowIdxFrom, rowIdxTo)
  onUnload: null,

  // function(hScrollPos, vScrollPos)
  onScroll: null,

  // function(resp)
  onError: null,

  // function(firstRowIdx, $leftBlockDomElement, $rightBlockDomElement)
  onBlockHide: null,

  // function(filteredRows, unfilteredRows)
  onRowCountUpdate: null,

  // function(requestData)
  onBeforeRequestData: null,

  // function(response)
  onRowDataReceived: null,

  // function(rowCount, firstVisibleRowIdx, lastVisibleRowIdx, previousFirstVisibleRowIdx, previousLastVisibleRowIdx)
  onViewUpdate: null,

  // each key is column id and value is callback function(colId, isDesc, rowA, rowB)
  sortFunctions: {
    'string': function(colId, isDesc, a, b) {
      var v1 = HugeGrid.getSortValue(a, colId, '');
      var v2 = HugeGrid.getSortValue(b, colId, '');
      if(v1 === v2)
        return 0;
      return ((v1 < v2) ? -1 : 1) * (isDesc ? -1 : 1);
    },
    'numeric': function(colId, isDesc, a, b) {
      var v1 = HugeGrid.getSortValue(a, colId, 0);
      var v2 = HugeGrid.getSortValue(b, colId, 0);

      if( typeof(v1) !== 'number') {
        v1 = parseFloat(v1.replace(/[^0-9.\-]+/g, ''));
        if( isNaN(v1) ) v1 = 0;
      }

      if( typeof(v2) !== 'number') {
        v2 = parseFloat(v2.replace(/[^0-9.\-]+/g, ''));
        if( isNaN(v2) ) v2 = 0;
      }

      if(v1 === v2)
        return 0;
      return ((v1 < v2) ? -1 : 1) * (isDesc ? -1 : 1);
    }
  }

});

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