如何使HTML表格列可编辑？

Question

我有一个带有一些JSON数据的HTML表，我想在我的列editable中创建一个，例如在用户单击或双击时该单元格应该可编辑

我不知道如何实现这一目标。 在Google上搜索时，我发现使用<td contenteditable='true'></td>可以使单元格可编辑，但动态地我不知道如何使用它

SNIPPET

$(document).ready(function() {

  var tableData = [{
      "Category Code": "C001",
      "Category Name": "Beverages",
      "Quantity": "3174.0000"

    },
    {
      "Category Code": "C003",
      "Category Name": "Juices",
      "Quantity": "36.0000"

    },
    {
      "Category Code": "C004",
      "Category Name": "Soups",
      "Quantity": "5.0000"

    },
    {
      "Category Code": "C005",
      "Category Name": "Cookies",
      "Quantity": "10.0000"

    },
    {
      "Category Code": "C006",
      "Category Name": "Buns",
      "Quantity": "258.0000"

    },
    {
      "Category Code": "C007",
      "Category Name": "Breads",
      "Quantity": "184.0000"

    },
    {
      "Category Code": "C008",
      "Category Name": "Rusks",
      "Quantity": "62.0000"

    },
    {
      "Category Code": "C009",
      "Category Name": "Biscuits",
      "Quantity": "55.0000"

    },
    {
      "Category Code": "C010",
      "Category Name": "Puff",
      "Quantity": "53.0000"

    },
    {
      "Category Code": "C011",
      "Category Name": "Savouries",
      "Quantity": "343.2500"

    },
    {
      "Category Code": "C012",
      "Category Name": "Cake",
      "Quantity": "19.0000"

    }

  ]


  function addTable(tableValue) {
    var col = Object.keys(tableValue[0]);
    var countNum = col.filter(i => !isNaN(i)).length;
    var num = col.splice(0, countNum);
    col = col.concat(num);
    var table = document.createElement("table");
    var tr = table.insertRow(-1); // TABLE ROW.
    for (var i = 0; i < col.length; i++) {
      var th = document.createElement("th"); // TABLE HEADER.
      th.innerHTML = col[i];
      tr.appendChild(th);
      tr.classList.add("text-center");
      tr.classList.add("head")
    }
    for (var i = 0; i < tableValue.length; i++) {
      tr = table.insertRow(-1);
      for (var j = 0; j < col.length; j++) {
        var tabCell = tr.insertCell(-1);
        var tabledata = tableValue[i][col[j]];
        if (tabledata && !isNaN(tabledata)) {
          tabledata = parseInt(tabledata).toLocaleString('en-in')
        }
        if (tableData[i]['Quantity'] === tableData[i][col[j]]) {
          //i want to make this cell editable
          tabCell.innerHTML = tabledata;
        } else {
          span = document.createElement("span");
          span.innerHTML = tabledata;
          tabCell.appendChild(span)
        }
        if (j > 1)

          tabCell.classList.add("text-right");

      }
    }
    var divContainer = document.getElementById("HourlysalesSummary");
    divContainer.innerHTML = "";
    divContainer.appendChild(table);
    table.classList.add("table");
    table.classList.add("table-striped");
    table.classList.add("table-bordered");
    table.classList.add("table-hover");

  }
  addTable(tableData);

});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.2/css/bootstrap.min.css">
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.2/js/bootstrap.min.js"></script>
<table id="HourlysalesSummary"></table>

我想使Quantity列数据可编辑 请任何在这里的人如何能指导我一些好的方法将非常有帮助。

Answer 1

对于数量单元格，您可以使用contenteditable属性：

tabCell.setAttribute('contenteditable', true);

$(document).ready(function() {

  var tableData = [{
      "Category Code": "C001",
      "Category Name": "Beverages",
      "Quantity": "3174.0000"

    },
    {
      "Category Code": "C003",
      "Category Name": "Juices",
      "Quantity": "36.0000"

    },
    {
      "Category Code": "C004",
      "Category Name": "Soups",
      "Quantity": "5.0000"

    },
    {
      "Category Code": "C005",
      "Category Name": "Cookies",
      "Quantity": "10.0000"

    },
    {
      "Category Code": "C006",
      "Category Name": "Buns",
      "Quantity": "258.0000"

    },
    {
      "Category Code": "C007",
      "Category Name": "Breads",
      "Quantity": "184.0000"

    },
    {
      "Category Code": "C008",
      "Category Name": "Rusks",
      "Quantity": "62.0000"

    },
    {
      "Category Code": "C009",
      "Category Name": "Biscuits",
      "Quantity": "55.0000"

    },
    {
      "Category Code": "C010",
      "Category Name": "Puff",
      "Quantity": "53.0000"

    },
    {
      "Category Code": "C011",
      "Category Name": "Savouries",
      "Quantity": "343.2500"

    },
    {
      "Category Code": "C012",
      "Category Name": "Cake",
      "Quantity": "19.0000"

    }

  ]


  function addTable(tableValue) {
    var col = Object.keys(tableValue[0]);
    var countNum = col.filter(i => !isNaN(i)).length;
    var num = col.splice(0, countNum);
    col = col.concat(num);
    var table = document.createElement("table");
    var tr = table.insertRow(-1); // TABLE ROW.
    for (var i = 0; i < col.length; i++) {
      var th = document.createElement("th"); // TABLE HEADER.
      th.innerHTML = col[i];
      tr.appendChild(th);
      tr.classList.add("text-center");
      tr.classList.add("head")
    }
    for (var i = 0; i < tableValue.length; i++) {
      tr = table.insertRow(-1);
      for (var j = 0; j < col.length; j++) {
        var tabCell = tr.insertCell(-1);
        var tabledata = tableValue[i][col[j]];
        if (tabledata && !isNaN(tabledata)) {
          tabledata = parseInt(tabledata).toLocaleString('en-in')
        }
        if (tableData[i]['Quantity'] === tableData[i][col[j]]) {
          //i want to make this cell editable
          tabCell.setAttribute('contenteditable', true); // <--- ADDING HERE
          tabCell.innerHTML = tabledata;
        } else {
          span = document.createElement("span");
          span.innerHTML = tabledata;
          tabCell.appendChild(span)
        }
        if (j > 1)

          tabCell.classList.add("text-right");

      }
    }
    var divContainer = document.getElementById("HourlysalesSummary");
    divContainer.innerHTML = "";
    divContainer.appendChild(table);
    table.classList.add("table");
    table.classList.add("table-striped");
    table.classList.add("table-bordered");
    table.classList.add("table-hover");

  }
  addTable(tableData);

});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.2/css/bootstrap.min.css">
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.2/js/bootstrap.min.js"></script>
<table id="HourlysalesSummary"></table>

另一种常用的技术是在需要时隐藏/显示单元格中的输入

Answer 2

您需要将事件监听器添加到表（td）的单元格中，该事件应为双击事件（dblclick），还请注意，我们必须创建一个 activeCell 变量来存储哪个单元格被激活

let activeCell = null;
let cells = document.getElementsByTagName('td');
for(let cell of cells) {
    cell.addEventListener('dblclick', function() {
        // to do
    });
}

在事件监听器上执行代码阻止时，您需要将 innerHTML单元格用作JavaScript的输入或 textarea ，

for(let cell of cells) {
    cell.addEventListener('dblclick', function() {
        if(this.childElementCount == 0) {
            let input = document.createElement('input');
            input.setAttribute('type', 'textbox');
            input.setAttribute('value', this.innerHTML);
            this.innerHTML = "";
            this.appendChild(input);
            activeCell = this;
        }
    });
}

当用户在激活的表格单元格之外单击时，保存该单元格输入的新值，并使用 mouseup 事件监听器将其恢复为普通文本，

document.addEventListener('mouseup', function(e) {
    if(activeCell != null) {
        let container = activeCell.children[0];
        if (!$(container).is(e.target) && $(container).has(e.target).length === 0) 
        {
            activeCell.innerHTML = container.value;
            activeCell = null;
        }
    }
});

我在JQuery中使用了一些方法，这些方法是 .is 和 .has ，用于检查单击的对象是否未激活单元格。

最终代码如下所示

let activeCell = null;
let cells = document.getElementsByTagName('td');
for(let cell of cells) {
    cell.addEventListener('dblclick', function() {
        if(this.childElementCount == 0) {
            let input = document.createElement('input');
            input.setAttribute('type', 'textbox');
            input.setAttribute('value', this.innerHTML);
            this.innerHTML = "";
            this.appendChild(input);
            activeCell = this;
        }
    });
}
document.addEventListener('mouseup', function(e) {
    if(activeCell != null) {
        let container = activeCell.children[0];
        if (!$(container).is(e.target) && $(container).has(e.target).length === 0) 
        {
            activeCell.innerHTML = container.value;
            activeCell = null;
        }
    }
});

祝你有美好的一天：）

Answer 3

在脚本末尾添加以下内容：

 $('.text-right').attr('contenteditable', true); 

$(document).ready(function() {

  var tableData = [{
      "Category Code": "C001",
      "Category Name": "Beverages",
      "Quantity": "3174.0000"

    },
    {
      "Category Code": "C003",
      "Category Name": "Juices",
      "Quantity": "36.0000"

    },
    {
      "Category Code": "C004",
      "Category Name": "Soups",
      "Quantity": "5.0000"

    },
    {
      "Category Code": "C005",
      "Category Name": "Cookies",
      "Quantity": "10.0000"

    },
    {
      "Category Code": "C006",
      "Category Name": "Buns",
      "Quantity": "258.0000"

    },
    {
      "Category Code": "C007",
      "Category Name": "Breads",
      "Quantity": "184.0000"

    },
    {
      "Category Code": "C008",
      "Category Name": "Rusks",
      "Quantity": "62.0000"

    },
    {
      "Category Code": "C009",
      "Category Name": "Biscuits",
      "Quantity": "55.0000"

    },
    {
      "Category Code": "C010",
      "Category Name": "Puff",
      "Quantity": "53.0000"

    },
    {
      "Category Code": "C011",
      "Category Name": "Savouries",
      "Quantity": "343.2500"

    },
    {
      "Category Code": "C012",
      "Category Name": "Cake",
      "Quantity": "19.0000"

    }

  ]


  function addTable(tableValue) {
    var col = Object.keys(tableValue[0]);
    var countNum = col.filter(i => !isNaN(i)).length;
    var num = col.splice(0, countNum);
    col = col.concat(num);
    var table = document.createElement("table");
    var tr = table.insertRow(-1); // TABLE ROW.
    for (var i = 0; i < col.length; i++) {
      var th = document.createElement("th"); // TABLE HEADER.
      th.innerHTML = col[i];
      tr.appendChild(th);
      tr.classList.add("text-center");
      tr.classList.add("head")
    }
    for (var i = 0; i < tableValue.length; i++) {
      tr = table.insertRow(-1);
      for (var j = 0; j < col.length; j++) {
        var tabCell = tr.insertCell(-1);
        var tabledata = tableValue[i][col[j]];
        if (tabledata && !isNaN(tabledata)) {
          tabledata = parseInt(tabledata).toLocaleString('en-in')
        }
        if (tableData[i]['Quantity'] === tableData[i][col[j]]) {
          //i want to make this cell editable
          tabCell.innerHTML = tabledata;
        } else {
          span = document.createElement("span");
          span.innerHTML = tabledata;
          tabCell.appendChild(span)
        }
        if (j > 1)

          tabCell.classList.add("text-right");

      }
    }
    var divContainer = document.getElementById("HourlysalesSummary");
    divContainer.innerHTML = "";
    divContainer.appendChild(table);
    table.classList.add("table");
    table.classList.add("table-striped");
    table.classList.add("table-bordered");
    table.classList.add("table-hover");

  }
  addTable(tableData);
  $('.text-right').attr('contenteditable', true);
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.2/css/bootstrap.min.css">
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.2/js/bootstrap.min.js"></script>
<table id="HourlysalesSummary"></table>