更改光滑网格中特定行的背景颜色

Changing background color of a specific row in slickgrid?

本文关键字：背景 颜色 网格      更新时间：2023-09-26

有没有办法更改 slickgrid 表中特定行的背景颜色，同时保留其他行???我正在使用

for ( var i = 0; i < grid.length; i++) {
    rowIndex[i] = {
        price : "editable-col",
        qty : "editable-col",
        ccy : "buy-row",
        side : "buy-col",
        symbol : "buy-row",
        enable : "buy-row"
    };
}
grid.setCellCssStyles("", rowIndex);

其中"editable-col"、"buy-row"和"buy-col"是包含背景/前景等颜色设置属性的 CSS 类，每当我想更改特定行的背景颜色时，我都必须更改为整个网格的颜色（通过循环网格长度），或者如果我为特定行设置类，例如 

rowIndex[5] = {
    price : "editable-col",
    qty : "editable-col",
    ccy : "buy-row",
    side : "buy-col",
    symbol : "buy-row",
    enable : "buy-row"
};
grid.setCellCssStyles("", rowIndex);

它为所需行设置 CSS 类，但清除其他行的所有 CSS 属性，为避免这种情况，我也需要重置其他行的 CSS 类，我认为当您有数千行时，这在性能和时间方面并不好。 只是想知道是否有更好的方法可以在不接触其他行的情况下做到这一点。 ？？ 任何帮助将不胜感激。

假设您使用的是 Slick.Data.DataView ，您可以修改 getItemMetadata 方法以动态地将类添加到包含的行元素。然后，您可以简单地设置网格，以根据行内的某个值更改行的样式。假设您的Slick.Data.DataView实例被调用dataView：

dataView.getItemMetadata = metadata(dataView.getItemMetadata);
function metadata(old_metadata) {
  return function(row) {
    var item = this.getItem(row);
    var meta = old_metadata(row) || {};
    if (item) {
      // Make sure the "cssClasses" property exists
      meta.cssClasses = meta.cssClasses || '';
      if (item.canBuy) {                    // If the row object has a truthy "canBuy" property
        meta.cssClasses += ' buy-row';      // add a class of "buy-row" to the row element.
      } // Note the leading ^ space.
      if (item.qty < 1) {                   // If the quantity (qty) for this item less than 1
        meta.cssClasses += ' out-of-stock'; // add a class of "out-of-stock" to the row element.
      }
   /* Here is just a random example that will add an HTML class to the row element
      that is the value of your row's "rowClass" property. Be careful with this as
      you may run into issues if the "rowClass" property isn't a string or isn't a
      valid class name. */
      if (item.rowClass) {
        var myClass = ' '+item.rowClass;
        meta.cssClasses += myClass;
      }
    }
    return meta;
  }
}

这将允许您将"购买行"类动态添加到该行中。您可以将函数更改为对不同的类具有多个条件，只需记住，每行的 CSS 类将根据行对象属性有条件。ret.cssClasses是这里的关键。它是将在 HTML 行中输出的字符串：<div class="[ret.cssClasses]"> .

您现在可以执行以下操作来更改行的类：

var row = dataView.getItem(5);
row.canBuy = true;
dataView.updateItem(row.id, row);
// The row element should now have a class of "buy-row" on it.
row.canBuy = false;
row.qty = 0;
dataView.updateItem(row.id, row);
// It should now have a class of "out-of-stock" and the "buy-row" class should be gone.
row.qty = 10;
row.rowClass = 'blue';
dataView.updateItem(row.id, row);
// It should now have a class of "blue" and the "out-of-stock" class should be gone.

是的，一种方法是简单地使用 jQuery：

var rowNumber = 3;
$($('.grid-canvas').children()[rowNumber]).css('background-color','red');

更新

要获得持久突出显示，您需要实现 getItemMetadata 函数。可以这样完成：

.html

<div style="width:600px;">
    <div id="myGrid" style="width:100%;height:500px;"></div>
</div>

.css

.highlight{
    background-color: #ff0000 !important;
}

JavaScript

var grid;
var columns = [
    {id: "title", name: "Title", field: "title"},
    {id: "duration", name: "Duration", field: "duration"},
    {id: "%", name: "% Complete", field: "percentComplete"},
    {id: "start", name: "Start", field: "start"},
    {id: "finish", name: "Finish", field: "finish"},
    {id: "effort-driven", name: "Effort Driven", field: "effortDriven"}
];
var data = [];
for (var i = 0; i < 500; i++) {
    data[i] = {
        title: "Task " + i,
        duration: "5 days",
        percentComplete: Math.round(Math.random() * 100),
        start: "01/01/2009",
        finish: "01/05/2009",
        effortDriven: (i % 5 == 0)
    };
}
data.getItemMetadata = function (row) {
    if (this[row].title == 'Task 5'){
        return {
            cssClasses: 'highlight'
        };
    }
    return null;
}
grid = new Slick.Grid("#myGrid", data, columns, { enableColumnReorder: false });
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