更改显示的 jquery 数据表默认行数

Change jquery datatables default row count shown

提问by DeltaTango

By default, datatables has 4 sizes of records to show: 10,25,50,100.

默认情况下，数据表有 4 种大小的记录要显示：10、25、50、100。

A) Is there a way to change this? I tried editing the jquery file to change the array to [30,60,90,120] itself and this destroyed it.

A) 有没有办法改变这一点？我尝试编辑 jquery 文件以将数组更改为 [30,60,90,120] 本身，这破坏了它。

B) Is there a way to set the default selection size say to 50 (instead of 10) of this selector upon initializing when jquery builds it?

B) 有没有办法在 jquery 构建时在初始化时将此选择器的默认选择大小设置为 50（而不是 10）？

I can't find either of these items in the documentation.

我在文档中找不到这些项目中的任何一个。

回答by Greg Pettit

[Update because this answer seems to get some views] --

[更新，因为这个答案似乎得到了一些意见]-

Updated Answer:

更新答案：

In later versions (I believe 1.10+), the API naming conventions changed, ditching the Hungarian notation. I believe the old conventions are aliased for compatibility, but the current conventions are:

在更高版本（我相信 1.10+）中，API 命名约定发生了变化，抛弃了匈牙利表示法。我相信旧的约定是为了兼容性而别名的，但当前的约定是：

lengthMenu
pageLength

Thus, the updated answers are:

因此，更新的答案是：

A) it's the lengthMenuparameter: https://datatables.net/reference/option/lengthMenu

A）它的lengthMenu参数：https: //datatables.net/reference/option/lengthMenu

For example, here's how I have one of mine set:

例如，这是我如何拥有我的一套：

"lengthMenu": [[10, 25, 50, 100, 200, -1], [10, 25, 50, 100, 200, "All"]],

B) pageLength https://datatables.net/reference/option/pageLength-- optionally set this to whatever your default should be.

B) pageLength https://datatables.net/reference/option/pageLength- 可选择将其设置为您的默认值。

"pageLength" : 25,

---

---

Original Answer

原答案

A) It's the aLengthMenuparameter: http://datatables.net/ref#aLengthMenu

A）这是aLengthMenu参数：http: //datatables.net/ref#aLengthMenu

For example, here's how I have one of mine set:

例如，这是我如何拥有我的一套：

"aLengthMenu": [[10, 25, 50, 100, 200, -1], [10, 25, 50, 100, 200, "All"]],

B) iDisplayLength-- set this parameter to whatever your default should be

B) iDisplayLength-- 将此参数设置为您的默认值

回答by Gyrocode.com

• DataTables 1.10+

  Use lengthMenuto define a list of available page lengths and optionallypageLengthto set initial page length.

  If pageLengthis not specified, it will be automatically set to the first value given in array specified by lengthMenu.

  var table = $('#example').DataTable({
     lengthMenu: [ [2, 4, 8, -1], [2, 4, 8, "All"] ],
     pageLength: 4
  });
  

  See this jsFiddlefor code and demonstration.

• 数据表 1.10+

  使用lengthMenu定义可用的页面的长度，并且一个清单任选pageLength到组初始页长度。

  如果pageLength未指定，它将自动设置为由指定的数组中给出的第一个值lengthMenu。

  var table = $('#example').DataTable({
     lengthMenu: [ [2, 4, 8, -1], [2, 4, 8, "All"] ],
     pageLength: 4
  });
  

  有关代码和演示，请参阅此 jsFiddle。

---

---

• DataTables 1.9

  Use aLengthMenuto define a list of available page lengths and iDisplayLengthto set initial page length.

  var table = $('#example').dataTable({
     "aLengthMenu": [ [2, 4, 8, -1], [2, 4, 8, "All"] ],
     "iDisplayLength" : 4,        
  });
  

  See this jsFiddlefor code and demonstration.

• 数据表 1.9

  使用aLengthMenu定义可用页长的列表，并iDisplayLength设置初始页面长度。

  var table = $('#example').dataTable({
     "aLengthMenu": [ [2, 4, 8, -1], [2, 4, 8, "All"] ],
     "iDisplayLength" : 4,        
  });
  

  有关代码和演示，请参阅此 jsFiddle。

回答by Bal Krishan Dubey

Datatable Version : 1.9.4 What works for me is this:- First I searched the Jquery.dataTables file which is mostly placed in the js folder. Then I search for "aLengthMenu": [ 10, 25, 50, 100 ], and changed it according to my requirements i.e. "aLengthMenu": [ 50, 75, 100, 125 ]. Thereafter I searched for "iDisplayLength" and wherever its value is shown as 10 (4 to 5 places), I changed it to 50 and save. Dropdown on my index page started showing row option as 50,75,100,125 in place of 10,25,50,100 with default option selected as 50.

数据表版本：1.9.4 对我有用的是：- 首先，我搜索了主要放在 js 文件夹中的 Jquery.dataTables 文件。然后我搜索“aLengthMenu”：[ 10, 25, 50, 100 ]，并根据我的要求进行更改，即“aLengthMenu”：[ 50, 75, 100, 125 ]。此后，我搜索了“iDisplayLength”，并将其值显示为 10（4 到 5 个位置），然后将其更改为 50 并保存。我的索引页上的下拉列表开始将行选项显示为 50,75,100,125 代替 10,25,50,100，默认选项选择为 50。