搜索一个jQuery数据表 [英] searching a jquery datatables

问题描述

我正在使用jquery数据表1.10，并尝试搜索和过滤表.我想使用一个搜索文本框来搜索两列，并使用一个复选框来过滤第三列的结果.这是我的数据表:

I am using jquery datatables 1.10 and trying to search and filter a table. I would like to use a search text box that searches two columns and a check box to filter the results of a third column. Here is my datatable:

var url = '@Url.Action("SupportClass1Search", "SupportClass1")';
$('#SupportClass1DataTable').DataTable({
    "serverSide": true,
    "processing": true,
    "ajax": url,
    "ordering": true,
    "dom": '<"top"prl<"clear">>t<"bottom">pi<"clear">',
    "pageLength": 10,
    "autoWidth": false,
    "columns": [
        { // create a link column using the value of the column as the link text
            "data": "SupportClass1Id",
            "width": "20%",
            "render": function (oObj) { return "<a href='#' onclick='editItem(\"" + oObj + "\")'>" + oObj + "</a>"; },
        },
        { "data": "SupportClass1Name", "sWidth": "70%" },
        { // convert boolean values to Yes/No
            "data": "Active",
            "width": "7%",
            "render": function (data, type, full) {
                if (data == true)
                { return 'Yes'; }
                else
                { return 'No'; }
            }
        }
    ]
})

我想基于复选框值过滤第三列(活动).下面的JS可以过滤表格，但是当我输入是"或否"时并没有使用活动"列:

I want to filter the 3rd column (Active) based on a checkbox value. The JS below works to filter the table but is not picking up the Active column when I enter "Yes" or "No":

// use an outside search input
oTable = $('#SupportClass1DataTable').DataTable();

$('#btnSearch').click(function () {
    oTable.search($('#txtSearch').val()).draw();
})

此外，我希望单独搜索活动"列，就像这样:

Also, I would prefer to search the Active column separately, kind of like this:

oTable
    .column(2).search('Yes')
    .columns([0,1]).search($('#txtSearch').val())
    .draw();

但这不起作用.感谢您的帮助

but this doesn't work. Any help is appreciated

推荐答案

我知道了.使用1.10版时，您必须使用ajax.data:

I figured it out. Using version 1.10 you have to use ajax.data:

https://datatables.net/reference/option/ajax.data

在初始化过程中，我使用以下代码为我的ajax调用添加了一个额外的参数:

In my initialization, I used the following to add an extra parameter to my ajax call:

"ajax": {
    "url": url,
    "data": function (d) {
        d.activeOnly = $('#activeOnly').is(':checked');
    }
},

这是我的完整初始化:

$(document).ready(function () {
    // initialize the data table
    var url = '@Url.Action("SupportClass1Search", "SupportClass1")';
    $('#SupportClass1DataTable').DataTable({
        "serverSide": true,
        "processing": true,
        "ajax": url,
        "ordering": true,
        "dom": '<"top"prl<"clear">>t<"bottom">pi<"clear">',
        "pageLength": 10,
        "autoWidth": false,
        "ajax": {
            "url": url,
            "data": function (d) {
                d.activeOnly = $('#activeOnly').is(':checked');
            }
        },
        "columns": [
            { // create a link column using the value of the column as the link text
                "data": "SupportClass1Id",
                "width": "20%",
                "render": function (oObj) { return "<a href='#' onclick='editItem(\"" + oObj + "\")'>" + oObj + "</a>"; },
            },
            { "data": "SupportClass1Name", "sWidth": "70%" },
            { // convert boolean values to Yes/No
                "data": "Active",
                "width": "7%",
                "render": function (data, type, full) {
                    if (data == true)
                    { return 'Yes'; }
                    else
                    { return 'No'; }
                }
            }
        ]
    })

    oTable = $('#SupportClass1DataTable').DataTable();

    // this is a checkbox outside the datatable 
    // whose value I wanted to pass back to my controller

    $('#activeOnly').click(function () {
        oTable.search($('#txtSearch').val()).draw();
    })

    $('#btnSearch').click(function () {
        oTable.search($('#txtSearch').val()).draw();
    })
});

我正在使用一个类作为DataTable的模型.我还在这里添加了activeOnly参数/属性:

I am using a class as a model for the DataTable. I added the activeOnly parameter/property here also:

/// <summary>
/// this class provides a model to use with JQuery DataTables plugin
/// </summary>
public class jQueryDataTableParamModel
{
    #region DataTable specific properties
    /// <summary>
    /// Request sequence number sent by DataTable,
    /// same value must be returned in response
    /// </summary>       
    public string draw { get; set; }

    /// <summary>
    /// Number of records that should be shown in table
    /// </summary>
    public int length { get; set; }

    /// <summary>
    /// First record that should be shown(used for paging)
    /// </summary>
    public int start { get; set; }
    #endregion

    #region Custom properties

    public bool activeOnly { get; set; }

    #endregion
}

这是我的控制者:

public ActionResult SupportClass1Search(jQueryDataTableParamModel param)
{
    // initialize the datatable from the HTTP request
    var searchString = Request["search[value]"];
    var sortColumnIndex = Convert.ToInt32(Request["order[0][column]"]);
    var sortDirection = Request["order[0][dir]"]; // asc or desc

    // query the database and output to a viewmodel
    var lvm = new SupportClass1SearchViewModel { };
    if (String.IsNullOrEmpty(searchString))
    {
        lvm.SupportClass1List = supportClass1Service.GetAll();
    }
    else
    {
        lvm.SupportClass1List = supportClass1Service.FindBy(t => (t.SupportClass1Name.Contains(searchString))
            && (t.Active.Equals(param.activeOnly) || param.activeOnly == false));
    }

    // do a bunch of stuff and retunr a json string of the data
    return MyJson;
}

现在，当我单击activeOnly复选框时，它将重新绘制将true或false传递给控制器​​的表.

Now, when I click on the activeOnly checkbox and it redraws the table passing true or false to the controller.

这篇关于搜索一个jQuery数据表的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！