How to Highlight jqGrid Rows When Their Checkboxes Are Checked?

Highlight Row When Checkbox is True

Introduction:

In web development, it is often desirable to provide visual cues to users to guide them through an interface. One common way to highlight important information is to use colors or gradients to draw attention to certain elements. In data grids, rows are frequently selected or modified using checkboxes. To enhance the user experience, it can be beneficial to highlight rows that have checkboxes in a checked state. This article explores how to achieve this effect using jQuery and the jqGrid plugin.

Implementing Row Highlighting:

To highlight rows based on checkbox values, we can utilize the rowattr callback introduced in jqGrid version 4.3.2. This callback allows for manipulating row attributes during grid filling, enabling conditional styling based on specific data.

Consider the following JavaScript code:

rowattr: function (rd) {
  if (rd.GroupHeader === "1") { // Adjust condition as per your model
    return { "class": "myAltRowClass" };
  }
}

In this example, we check the GroupHeader property of a row (rd) and, if it has a value of "1," we assign a custom CSS class (myAltRowClass) to the row. This CSS class can be defined to alter the background color of the highlighted rows.

Optimizing Code with Templates:

To streamline your code, you can leverage column templates and variables to define common properties and behaviors. Consider the following optimizations:

cmTemplate: { align: 'center', sortable: false, editable: true, width: 80 },
myCheckboxTemplate = {
  formatter: 'checkbox',
  edittype: 'checkbox',
  type: 'select',
  editoptions: { value: "1:0" }
},
myTextareaTemplate = {
  edittype: "textarea",
  editoptions: { size: "30", maxlength: "30" }
};

colModel: [
  { name: 'TypeID', index: 'TypeID', width: 350, hidden: true, edittype: "select", ... },
  { name: 'Order1', index: 'Order1', template: myTextareaTemplate },
  { name: 'Order2', index: 'Order2', template: myTextareaTemplate },
  // ... Additional columns omitted for brevity
  { name: 'GroupHeader', index: 'GroupHeader', width: 100, template: myCheckboxTemplate },
  { name: 'IsGroup', index: 'IsGroup', template: myCheckboxTemplate }
],

By utilizing templates and variables, your code becomes more concise and maintainable.

Conclusion:

Incorporating row highlighting based on checkbox values using jqGrid's rowattr callback not only enhances the user experience but also showcases the flexibility and efficiency of the plugin. By combining this technique with column templates, you can create elegant and well-structured data grids that meet your specific requirements.

The above is the detailed content of How to Highlight jqGrid Rows When Their Checkboxes Are Checked?. For more information, please follow other related articles on the PHP Chinese website!