jqgrid grid.setcolumns

在 jqGrid 中，要设置网格的列数，可以使用 `setGridWidth` 方法。这个方法可以设置网格的宽度，也可以设置列数。

例如，如果你想将网格的列数设置为 4，可以这样做：

$("#grid_id").jqGrid("setGridWidth", 4*150);

其中，`"#grid_id"` 是你的网格的 ID。`150` 是每个列的默认宽度，所以我们将 4 个列的总宽度设置为 4*150。

如果你想动态地更改网格的列数，可以将上面的代码放在一个函数中，并将要设置的列数作为参数传递进去。例如：

function setGridColumns(grid_id, num_columns) {
    $("#"+grid_id).jqGrid("setGridWidth", num_columns*150);
}

然后你就可以在需要的地方调用这个函数来动态地更改网格的列数了：

setGridColumns("grid_id", 6);

在上面的代码中，我们将网格的列数更改为 6。

相关问题

jqgrid grid.setcolumns.js 怎么使用

如果想要使用 `grid.setcolumns.js` 插件来设置 jqGrid 的列数，需要先引入该插件的 JS 文件：

<script src="path/to/grid.setcolumns.js"></script>

然后在 jqGrid 的配置中加入 `setColumns` 选项：

$("#grid_id").jqGrid({
    url: "some_url",
    datatype: "json",
    colNames: ["Column 1", "Column 2", "Column 3", "Column 4"],
    colModel: [
        {name: "col1", index: "col1", width: 100},
        {name: "col2", index: "col2", width: 100},
        {name: "col3", index: "col3", width: 100},
        {name: "col4", index: "col4", width: 100}
    ],
    setColumns: {
        width: 800,
        minWidth: 80,
        columns: 4
    },
    // 其他配置项
});

在上面的配置中，我们设置了 `setColumns` 选项来定义列数和宽度。`width` 表示网格的总宽度，`minWidth` 表示每个列的最小宽度，`columns` 表示网格的列数。

如果想要动态地更改网格的列数，可以使用 `setGridWidth` 方法来完成。例如：

$("#grid_id").jqGrid("setGridWidth", 6*100);

在上面的代码中，我们将网格的列数更改为 6，每个列的宽度为 100。

jqgrid loadComplete

"jqgrid loadComplete" is an event that is triggered after the data has been loaded into a jqGrid, and the grid has been populated with rows. This event can be used to perform additional processing or manipulation of the data, or to customize the appearance or behavior of the grid.

Here is an example of how you might use the "jqgrid loadComplete" event to customize the appearance of a jqGrid:

$("#myGrid").jqGrid({
  url: "data.php",
  datatype: "json",
  colModel: [
    { name: "id", label: "ID", width: 50 },
    { name: "name", label: "Name", width: 200 },
    { name: "age", label: "Age", width: 50 },
    // other columns...
  ],
  loadComplete: function(data) {
    // Set the background color of even-numbered rows to light gray
    $("#myGrid tr:even").css("background-color", "#f9f9f9");
  }
});

In this example, the "loadComplete" event is used to set the background color of even-numbered rows to light gray. The event handler function is passed a "data" parameter that contains the loaded data, which can be used to perform additional processing or manipulation of the data if needed.

The "loadComplete" event can be useful for customizing the appearance or behavior of a jqGrid based on the loaded data, or for performing additional processing or manipulation of the data before it is displayed in the grid.