Question

我的数据表中的每一行都有两个按钮，编辑和删除。是否可以在“删除”或“编辑”按钮上单击并获取员工的ID或行ID，并将其传递给web方法，该方法需要一个ID参数来删除数据库中的记录？

到目前为止我的jquery代码：

 $(document).ready(function () {
        $.support.cors = true;
        $.ajax({
            url: '<%=ResolveUrl("GetEmployee.aspx") %>',
            type: 'POST',
            contentType: 'application/json; charset=utf-8',
            dataType: 'json',
            success: function (data) {
              var table = $('#datatable').dataTable({
                    data: data,
                    columns: [
                        { 'data': 'Id' },
                        { 'data': 'image' },
                        { 'data': 'lastName' },
                        { 'data': 'firstName' },
                        { 'data': 'jobTitle' },
                        {
                            'data': 'StartDate',
                            'render': function (jsonDate) {
                                var date = new Date(parseInt(jsonDate.substr(6)));
                                var month = date.getMonth() + 1;
                                return date.getDate() + "/" + month + "/" + date.getFullYear();
                            }
                        },
                        {
                            'data': 'EndDate',
                            'render': function (jsonDate) {
                                var date = new Date(parseInt(jsonDate.substr(6)));
                                var month = date.getMonth() + 1;
                                return date.getDate() + "/" + month + "/" + date.getFullYear();
                            }
                        },
                        {
                            'data': null,
                            'render': function (data, type, row) {
                                return '<button id="' + row.id +'" onclick="editClick()">Edit</button>'
                            }
                        },
                        {
                            'data': null,
                            'render': function (data, type, row) {
                                return '<button id="' + row.id + '" class="dodo" onclick="deleteClick()">Delete</button>'
                            }
                        }
                    ]
                });
            }
        });

        $('#datatable').on('click', 'button', function () {
            var id = $(this).data();
            //var id = table.row($(this)).data();
            alert(JSON.stringify(id));
        });
    });

现在，当我试图抓住id时，它返回我的未定义。

我的网络方法：

  [WebMethod]
    public static void DeleteRecord(string id)
    {
        var query = "DELETE FROM employee WHERE ID=?";
        OdbcConnection myConn = new OdbcConnection(myConnection);
        OdbcTransaction transaction = null;
        myConn.Open();

        transaction = myConn.BeginTransaction();
        OdbcCommand command = new OdbcCommand(query, myConn, transaction);
        command.Parameters.Add("ID", OdbcType.Int).Value = id;
        command.ExecuteNonQuery();

        transaction.Commit();

        myConn.Close();
    }

谢谢！

Answer 1

是的，您可以在点击按钮时获取员工的ID或行的ID。为此，您需要在定义编辑和删除按钮时执行一些小的更改。

{
     'data': null,
     'render': function (data, type, row) {
                   return '<button id="' + row.id +'" onclick="editClick(this)">Edit</button>'
               }
},
{
     'data': null,
     'render': function (data, type, row) {
                       return '<button id="' + row.id + '" class="dodo" onclick="deleteClick(this)">Delete</button>'
               }
}

Javascript / jQuery

function editClick (obj) {
      var rowID = $(obj).attr('id');
      var employeeID = $(obj).closest('tr').find('td:first').html());
}

function deleteClick (obj) {
      var rowID = $(obj).attr('id');
      var employeeID = $(obj).closest('tr').find('td:first').html());
}

Answer 2

您应该使用.attr()方法查找id属性。

$('#datatable').on('click', 'button.deleteButton', function () {
        var id = $(this).attr('id');
});
$('#datatable').on('click', 'button.editButton', function () {
        var id = $(this).attr('id');
});

数据表

 {
       'data': null,
        'render': function (data, type, row) {
               return '<button id="' + row.id +'" class="editButton">Edit</button>'
        }
 },
 {
       'data': null,
       'render': function (data, type, row) {
           return '<button id="' + row.id + '" class="deleteButton" >Delete</button>'
        }
}

Answer 3

这是可能的我知道三种方式。

一种不好的方法：例如，为backEnd输入数据缺点短路和搜索...功能已禁用。额外的回应。

<a data-id="<?=yourQueryResult["id"]?>" onclick="javascript:foo()"></a>
function foo (){ var id = $(this)attr("data-id")}

或

<a onclick="javascript:foo(<?=yourQueryResult["id"]?>)"></a>
function foo(id){ /*deleting*/}

2关于渲染函数转到javascript方法参数行id 例子

render': function (data, type, row) {
                   return '<a onclick="javascript:foo('+ row.id +')"></a>'
               }

3我喜欢direck jquery事件监听器以获取行数据优点：干净的html，没有内联函数调用和所有函数相同的文件调用。

var table = $('#datatable').dataTable({...})

$('#datatable tbody').on('click', 'a.delete', function () {
            var tr = $(this).closest('tr');
            var row = table.row(tr);
            var id = row.data().yourColumnName;
        });
$('#datatable tbody').on('click', 'a.edit', function () {
                var tr = $(this).closest('tr');
                var row = table.row(tr);
                var rowData = row.data();
            });

Answer 4

您应该将data-id添加到按钮中，如下所示：

'<button data-id="' + row.id + '" id="' + row.id + '" class="dodo" onclick="deleteClick()">Delete</button>'

其他按钮相同，然后点击：

var id = $(this).data('id');

这将带来你的身份

Answer 5

let tot_objects = 100;
let material = new THREE.MeshStandardMaterial( {color: 0x00ff00} );
let geometry = new THREE.BoxGeometry(5, 5, 5, 4, 4, 4);
let objs = populateGroup(geometry, material, tot_objects);

//let's merge all the objects in one geometry
let mergedGeometry = new THREE.Geometry();
for (let i = 0; i < objs.length; i++){
    let mesh = objs[i];
    mesh.updateMatrix();
    mergedGeometry.merge(mesh.geometry, mesh.matrix);
}

let bufGeometry = new THREE.BufferGeometry().fromGeometry(mergedGeometry);

let totVerticesMergedGeometry = (mergedGeometry.vertices.length ) + (mergedGeometry.faces.length * 3);
console.log(bufGeometry.attributes.position.count); // 57600
console.log(totVerticesMergedGeometry); // it returns 67400 !!!
scene.add(new THREE.Mesh(bufGeometry, material));

function populateGroup(selected_geometry, selected_material, tot_objects) {
    let objects = [];
    for (var i = 0; i< tot_objects; i++) {
        let coord = {x:i, y:i, z:i};
        let object = new THREE.Mesh(selected_geometry, selected_material);
        object.position.set(coord.x, coord.y, coord.z);
        object.rotateY( (90 + 40 + i * 100/tot_objects) * -Math.PI/180.0 );
        objects.push(object);
    }
    return objects;
}

Jquery数据表从按钮单击获取行ID

5 个答案: