设为首页收藏本站
开启辅助访问

datagrid

 您所在的位置：网站首页 › easyui隐藏checkbox › datagrid

datagrid

2024-07-10 05:34| 来源: 网络整理| 查看: 265

DataGrid Contents Overview Usage Example DataGrid Properties Column Properties Editor DataGrid View Events Methods

Extend from $.fn.panel.defaults. Override defaults with $.fn.datagrid.defaults.

The datagrid displays data in a tabular format and offers rich support to select, sort, group and edit data. The datagrid has been designed to reduce development time and to require no specific knowledge from developers. It is both featherweight and feature-rich. Cell merging, multi-column headers, frozen columns and footers are just a few of its features.

Dependencies panel resizable linkbutton pagination Usage Example

Create datagrid from an existing table element, defining columns, rows, and data in html.

Create datagrid via markup. The nested tags define the columns on the table.

Create datagrid using javascript is also allowed.

Query data with some parameters.

After changing data to server, refresh the front data.

DataGrid Properties

The properties extend from panel. below is the added properties for datagrid.

Name Type Description Default columns array The datagrid columns config object, see column properties for more details. undefined frozenColumns array Same as the columns property, but the these columns will be frozen on left. undefined fitColumns boolean True to auto expand/contract the size of the columns to fit the grid width and prevent horizontal scrolling. false resizeHandle string Resizing column position, Available value are: 'left','right','both'. When 'right', users can resize columns by dragging the right edge of column headers, etc. Available since version 1.3.2. right resizeEdge number The resizing column edge. Available since version 1.5.3. 5 autoRowHeight boolean Defines if set the row height based on the contents of that row. Set to false can improve loading performance. true toolbar array,selector The top toolbar of datagrid panel. Possible values: 1) an array, each tool options are same as linkbutton. 2) a selector that indicate the toolbar.

Define toolbar within a tag:

$('#dg').datagrid({ toolbar: '#tb' });

Define toolbar via array:

$('#dg').datagrid({ toolbar: [{ iconCls: 'icon-edit', handler: function(){alert('edit')} },'-',{ iconCls: 'icon-help', handler: function(){alert('help')} }] }); null striped boolean True to stripe the rows. false method string The method type to request remote data. post nowrap boolean True to display data in one line. Set to true can improve loading performance. true idField string Indicate which field is an identity field. null url string A URL to request data from remote site. null data array,object The data to be loaded. Available since version 1.3.2.

Code example:

$('#dg').datagrid({ data: [ {f1:'value11', f2:'value12'}, {f1:'value21', f2:'value22'} ] }); null loadMsg string When loading data from remote site, show a prompt message. Processing, please wait … emptyMsg string The message to be shown when no records exist. pagination boolean True to show a pagination toolbar on datagrid bottom. false rownumbers boolean True to show a row number column. false singleSelect boolean True to allow selecting only one row. false ctrlSelect boolean True to only allow multi-selection when ctrl+click is used. Available since version 1.3.6. false checkOnSelect boolean If true, the checkbox is checked/unchecked when the user clicks on a row. If false, the checkbox is only checked/unchecked when the user clicks exactly on the checkbox. Available since version 1.3. true selectOnCheck boolean If set to true, clicking a checkbox will always select the row. If false, selecting a row will not check the checkbox. Available since version 1.3. true scrollOnSelect boolean If set to true, scroll to the row automatically when selecting it. Available since version 1.5.2. true pagePosition string Defines position of the pager bar. Available values are: 'top','bottom','both'. Available since version 1.3. bottom pageNumber number When set pagination property, initialize the page number. 1 pageSize number When set pagination property, initialize the page size. 10 pageList array When set pagination property, initialize the page size selecting list. [10,20,30,40,50] queryParams object When request remote data, sending additional parameters also.

Code example:

$('#dg').datagrid({ queryParams: { name: 'easyui', subject: 'datagrid' } }); {} sortName string Defines which column can be sorted. null sortOrder string Defines the column sort order, can only be 'asc' or 'desc'. asc multiSort boolean Defines if to enable multiple column sorting. Available since version 1.3.4. false remoteSort boolean Defines if to sort data from server. true showHeader boolean Defines if to show row header. true showFooter boolean Defines if to show row footer. false scrollbarSize number The scrollbar width(when scrollbar is vertical) or height(when scrollbar is horizontal). 18 rownumberWidth number The width of the row number column. Available since version 1.5. 30 editorHeight number The default height of the editors. 24 rowStyler function Return style such as 'background:red'. The function take two parameters: rowIndex: the row index, start with 0 rowData: the record corresponding to this row

Code example:

$('#dg').datagrid({ rowStyler: function(index,row){ if (row.listprice>80){ return 'background-color:#6293BB;color:#fff;'; // return inline style // the function can return predefined css class and inline style // return {class:'r1', style:{'color:#fff'}}; } } }); loader function Defines how to load data from remote server. Return false can abort this action. This function takes following parameters: param: the parameter object to pass to remote server. success(data): the callback function that will be called when retrieve data successfully. error(): the callback function that will be called when failed to retrieve data. json loader loadFilter function Return the filtered data to display. The function take one parameter 'data' that indicate the original data. You can change original source data to standard data format. This function must return standard data object that contain 'total' and 'rows' properties.

Code example:

// removing 'd' object from asp.net web service json output $('#dg').datagrid({ loadFilter: function(data){ if (data.d){ return data.d; } else { return data; } } }); editors object Defines the editor when editing a row. predefined editors view object Defines the view of datagrid. default view Column Properties

The DataGrid Columns is an array object, which element is an array too. The element of element array is a config object, which defines every column field.

Code example:

Name Type Description Default title string The column title text. undefined field string The column field name. undefined width number The width of column. If not defined, the width will auto expand to fit its contents. No width definition will reduce performance. undefined rowspan number Indicate how many rows a cell should take up. undefined colspan number Indicate how many columns a cell should take up. undefined align string Indicate how to align the column data. 'left','right','center' can be used. undefined halign string Indicate how to align the column header. Possible values are: 'left','right','center'. If not assigned, the header alignment is same as data alignment defined via 'align' property. Available since version 1.3.2. undefined sortable boolean True to allow the column can be sorted. undefined order string The default sort order, can only be 'asc' or 'desc'. Available since version 1.3.2. undefined resizable boolean True to allow the column can be resized. undefined fixed boolean True to prevent from adjusting width when 'fitColumns' is set to true. undefined hidden boolean True to hide the column. undefined checkbox boolean True to show a checkbox. The checkbox column has fixed width. undefined formatter function The cell formatter function, takes three parameters: value: the field value. rowData: the row record data. rowIndex: the row index.

Code example:

$('#dg').datagrid({ columns:[[ {field:'userId',title:'User', width:80, formatter: function(value,row,index){ if (row.user){ return row.user.name; } else { return value; } } } ]] }); undefined styler function The cell styler function, return style string to custom the cell style such as 'background:red'. The function takes three parameters: value: the field value. rowData: the row record data. rowIndex: the row index.

Code example:

$('#dg').datagrid({ columns:[[ {field:'listprice',title:'List Price', width:80, align:'right', styler: function(value,row,index){ if (value undefined hformatter function The header cell formatter function, takes two parameters: title: the column title. col: the column object. Available since version 1.9.10. undefined hstyler function The header cell styler function, return style string or object to the header cell. The function takes two parameters: title: the column title. col: the column object. Available since version 1.9.10. undefined sorter function The custom field sort function that used to do local sorting, take two parameters: a: the first field value. b: the second field value.

Code example:

$('#dg').datagrid({ remoteSort: false, columns: [[ {field:'date',title:'Date',width:80,sortable:true,align:'center', sorter:function(a,b){ a = a.split('/'); b = b.split('/'); if (a[2] == b[2]){ if (a[0] == b[0]){ return (a[1]>b[1]?1:-1); } else { return (a[0]>b[0]?1:-1); } } else { return (a[2]>b[2]?1:-1); } } } ]] }); undefined editor string,object Indicate the edit type. When string indicates the edit type, when object contains two properties: type: string, the edit type, possible types are: text,textbox,numberbox,numberspinner, combobox,combotree,combogrid,datebox,datetimebox, timespinner,datetimespinner, textarea,checkbox,validatebox. options: object, the editor options corresponding to the edit type. undefined Editor

Override defaults with $.fn.datagrid.defaults.editors.

Every editor has following actions:

Name Parameters Description init container, options Initialize the editor and return the target object. destroy target Destroy the editor if necessary. getValue target Get value from editor text. setValue target , value Set value for editor. resize target , width Resize the editor if necessary.

For example, the text editor is defined as following:

DataGrid View

Override defaults with $.fn.datagrid.defaults.view.

The view is an object that will tell datagrid how to render rows. The object must defines the following functions:

Name Parameters Description render target, container, frozen Called when the data is loaded. target: DOM object, the datagrid object. container: the rows container. frozen: indicate if to render the frozen container. renderFooter target, container, frozen This is an option function to render row footer. renderRow target, fields, frozen, rowIndex, rowData This is an option function and will be called by render function. refreshRow target, rowIndex Defines how to refresh the specified row. onBeforeRender target, rows Fires before the view is rendered. onAfterRender target Fires after the view is rendered. Events

The events extend from panel, below is the added events for datagrid.

Name Parameters Description onLoadSuccess data Fires when data is loaded successfully. onLoadError none Fires when some errors occur to load remote data. onBeforeLoad param Fires before a request is made to load data. If return false the load action will be canceled. onClickRow index,row Fires when the user clicks a row, the parameters contains: index: the clicked row index, start with 0 row: the record corresponding to the clicked row onDblClickRow index,row Fires when the user double clicks a row, the parameters contains: index: the clicked row index, start with 0 row: the record corresponding to the clicked row onClickCell index,field,value Fires when the user clicks a cell. onDblClickCell index,field,value Fires when the user double clicks a cell.

Code example:

// when double click a cell, begin editing and make the editor get focus $('#dg').datagrid({ onDblClickCell: function(index,field,value){ $(this).datagrid('beginEdit', index); var ed = $(this).datagrid('getEditor', {index:index,field:field}); $(ed.target).focus(); } }); onBeforeSortColumn sort,order Fires before the user sorts a column, return false to cancel this action. Available since version 1.3.6. onSortColumn sort,order Fires when the user sorts a column, the parameters contains: sort: the sort column field name order: the sort column order onResizeColumn field,width Fires when the user resizes the column. onBeforeSelect index,row Fires before the user selects a row, return false to cancel this action. Available since version 1.4.1. onSelect index,row Fires when the user selects a row, the parameters contains: index: the selected row index, start with 0 row: the record corresponding to the selected row onBeforeUnselect index,row Fires before the user unselects a row, return false to cancel this action. Available since version 1.4.1. onUnselect index,row Fires when the user unselects a row, the parameters contains: index: the unselected row index, start with 0 row: the record corresponding to the unselected row onSelectAll rows Fires when the user selects all rows. onUnselectAll rows Fires when the user unselects all rows. onBeforeCheck index,row Fires before the user checks a row, return false to cancel this action. Available since version 1.4.1. onCheck index,row Fires when the user checks a row, the parameters contains: index: the checked row index, start with 0 row: the record corresponding to the checked row Available since version 1.3. onBeforeUncheck index,row Fires before the user unchecks a row, return false to cancel this action. Available since version 1.4.1. onUncheck index,row Fires when the user unchecks a row, the parameters contains: index: the unchecked row index, start with 0 row: the record corresponding to the unchecked row Available since version 1.3. onCheckAll rows Fires when the user checks all rows. Available since version 1.3. onUncheckAll rows Fires when the user unchecks all rows. Available since version 1.3. onBeforeEdit index,row Fires before the user starts editing a row, return false to cancel this action. The parameters contains: index: the editing row index, start with 0 row: the record corresponding to the editing row onBeginEdit index,row Fires when a row goes into edit mode. Available since version 1.3.6. onEndEdit index,row,changes Fires when finishing editing but before destroying editors. Available since version 1.3.6. onAfterEdit index,row,changes Fires after the user finishes editing, the parameters contains: index: the editing row index, start with 0 row: the record corresponding to the editing row changes: the changed field/value pairs onCancelEdit index,row Fires when the user cancels editing a row, the parameters contains: index: the editing row index, start with 0 row: the record corresponding to the editing row onHeaderContextMenu e,field Fires when the header of datagrid is right clicked. onRowContextMenu e,index,row Fires when a row is right clicked. Methods Name Parameter Description options none Return the options object. getPager none Return the pager object. getPanel none Return the panel object. getColumnFields frozen Return the column fields. If frozen setted to true the frozen column fields is returned. Code example: var opts = $('#dg').datagrid('getColumnFields'); // get unfrozen columns var opts = $('#dg').datagrid('getColumnFields', true); // get frozen columns getColumnOption field Return the specified column option. resize param Do resize and do layout. load param Load and show the first page rows. If the 'param' is specified, it will replace with the queryParams property. Usually do a query by passing some parameters, this method can be called to load new data from server. $('#dg').datagrid('load',{ code: '01', name: 'name01' }); reload param Reload the rows. Same as the 'load' method but stay on current page. reloadFooter footer Reload the footer rows. Code examples: // update footer row values and then refresh var rows = $('#dg').datagrid('getFooterRows'); rows[0]['name'] = 'new name'; rows[0]['salary'] = 60000; $('#dg').datagrid('reloadFooter'); // update footer rows with new data $('#dg').datagrid('reloadFooter',[ {name: 'name1', salary: 60000}, {name: 'name2', salary: 65000} ]); loading none Display loading status. loaded none Hide loading status. fitColumns none Make columns auto expand/collapse to fit datagrid width. fixColumnSize field Fix columns size. If 'field' parameter is not assigned, all columns size will be fixed.

Code example:

$('#dg').datagrid('fixColumnSize', 'name'); // fix the 'name' column size $('#dg').datagrid('fixColumnSize'); // fix all columns size fixRowHeight index Fix the specified row height. If 'index' parameter is not assigned, all rows height will be fixed. freezeRow index Freeze the specify row that will always be displayed at the top when the datagrid is scrolled down. Available since version 1.3.2. autoSizeColumn field adjusts the column width to fit the contents. Available since version 1.3. loadData data Load local data, the old rows will be removed. getData none Return the loaded data. getRows none Return the current page rows. getFooterRows none Return the footer rows. getRowIndex row Return the specified row index, the row parameter can be a row record or an id field value. getChecked none Return all rows where the checkbox has been checked. Available since version 1.3. getSelected none Return the first selected row record or null. getSelections none Return all selected rows, when no record selected, an empty array will return. clearSelections none Clear all selections. clearChecked none Clear all checked rows. Available since version 1.3.2. scrollTo index Scroll to the specified row. Available since version 1.3.3. gotoPage param Go to the specified page. Available since version 1.4.4.

Usage example:

// go to page 3 $('#dg').datagrid('gotoPage', 3); // go to page 3 with callback $('#dg').datagrid('gotoPage', { page: 3, callback: function(page){ console.log(page) } }) highlightRow index Highlight a row. Available since version 1.3.3. selectAll none Select all current page rows. unselectAll none Unselect all current page rows. selectRow index Select a row, the row index start with 0. selectRecord idValue Select a row by passing id value parameter. unselectRow index Unselect a row. checkAll none Check all current page rows. Available since version 1.3. uncheckAll none Uncheck all current page rows. Available since version 1.3. checkRow index Check a row, the row index start with 0. Available since version 1.3. uncheckRow index Uncheck a row, the row index start with 0. Available since version 1.3. beginEdit index Begin editing a row. endEdit index End editing a row. cancelEdit index Cancel editing a row. getEditors index Get the specified row editors. Each editor has the following properties: actions: the actions that the editor can do, same as the editor definition. target: the target editor jQuery object. field: the field name. type: the editor type, such as 'text','combobox','datebox', etc. getEditor options Get the specified editor, the options contains two properties: index: the row index. field: the field name.

Code example:

// get the datebox editor and change its value var ed = $('#dg').datagrid('getEditor', {index:1,field:'birthday'}); $(ed.target).datebox('setValue', '5/4/2012'); refreshRow index Refresh a row. validateRow index validate the specified row, return true when valid. updateRow param Update the specified row, the param contains following properties: index: the row index to be updated. row: the new row data.

Code example:

$('#dg').datagrid('updateRow',{ index: 2, row: { name: 'new name', note: 'new note message' } }); appendRow row Append a new row. The new row will be added to the last position: $('#dg').datagrid('appendRow',{ name: 'new name', age: 30, note: 'some messages' }); insertRow param Insert a new row, the param contains following properties: index: the row index to insert into, if not defined, append the new row. row: the row data. Code examples: // insert a new row at second row position $('#dg').datagrid('insertRow',{ index: 1, // index start with 0 row: { name: 'new name', age: 30, note: 'some messages' } }); deleteRow index Delete a row. getChanges type Get changed rows since the last commit. The type parameter indicate which type changed rows, possible value is: inserted,deleted,updated,etc. When the type parameter is not assigned, return all changed rows. acceptChanges none Commits all the changes data since it was loaded or since the last time acceptChanges was called. rejectChanges none Rolls back all the changes data since it was created, or since the last time acceptChanges was called. mergeCells options Merge some cells to one cell, the options contains following properties: index: the row index. type: the row type, possible values are 'body','footer'. field: the field name. rowspan: the rowspan count to be merged. colspan: the colspan count to be merged.

Code example:

// merge the footer rows $('#dg').datagrid('mergeCells', { index: 1, field: 'name', colspan: 2, type: 'footer' }); showColumn field Display the specified column. hideColumn field Hide the specified column. sort param Sort the datagrid. Available since version 1.3.6.

Code example:

// sort on a column $('#dg').datagrid('sort', 'itemid'); // sort on a column with specified order $('#dg').datagrid('sort', { sortName: 'productid', sortOrder: 'desc' }); // sort on multiple columns $('#dg').datagrid('sort', { sortName: 'productid,listprice', sortOrder: 'desc,asc' });


【本文地址】


今日新闻

推荐新闻

CopyRight 2018-2019 办公设备维修网 版权所有 豫ICP备15022753号-3